diff options
Diffstat (limited to 'third_party/abseil_cpp/absl/time')
651 files changed, 0 insertions, 22986 deletions
diff --git a/third_party/abseil_cpp/absl/time/BUILD.bazel b/third_party/abseil_cpp/absl/time/BUILD.bazel deleted file mode 100644 index 9ab2adb886..0000000000 --- a/third_party/abseil_cpp/absl/time/BUILD.bazel +++ /dev/null @@ -1,124 +0,0 @@ -# -# Copyright 2017 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -load("@rules_cc//cc:defs.bzl", "cc_library", "cc_test") -load( - "//absl:copts/configure_copts.bzl", - "ABSL_DEFAULT_COPTS", - "ABSL_DEFAULT_LINKOPTS", - "ABSL_TEST_COPTS", -) - -package(default_visibility = ["//visibility:public"]) - -licenses(["notice"]) # Apache 2.0 - -cc_library( - name = "time", - srcs = [ - "civil_time.cc", - "clock.cc", - "duration.cc", - "format.cc", - "internal/get_current_time_chrono.inc", - "internal/get_current_time_posix.inc", - "time.cc", - ], - hdrs = [ - "civil_time.h", - "clock.h", - "time.h", - ], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - "//absl/base", - "//absl/base:core_headers", - "//absl/base:raw_logging_internal", - "//absl/numeric:int128", - "//absl/strings", - "//absl/time/internal/cctz:civil_time", - "//absl/time/internal/cctz:time_zone", - ], -) - -cc_library( - name = "test_util", - testonly = 1, - srcs = [ - "internal/test_util.cc", - "internal/zoneinfo.inc", - ], - hdrs = ["internal/test_util.h"], - copts = ABSL_DEFAULT_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - visibility = [ - "//absl/time:__pkg__", - ], - deps = [ - ":time", - "//absl/base:raw_logging_internal", - "//absl/time/internal/cctz:time_zone", - "@com_google_googletest//:gtest", - ], -) - -cc_test( - name = "time_test", - srcs = [ - "civil_time_test.cc", - "clock_test.cc", - "duration_test.cc", - "format_test.cc", - "time_test.cc", - "time_zone_test.cc", - ], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - deps = [ - ":test_util", - ":time", - "//absl/base:config", - "//absl/base:core_headers", - "//absl/numeric:int128", - "//absl/time/internal/cctz:time_zone", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "time_benchmark", - srcs = [ - "civil_time_benchmark.cc", - "clock_benchmark.cc", - "duration_benchmark.cc", - "format_benchmark.cc", - "time_benchmark.cc", - ], - copts = ABSL_TEST_COPTS, - linkopts = ABSL_DEFAULT_LINKOPTS, - tags = [ - "benchmark", - ], - deps = [ - ":test_util", - ":time", - "//absl/base", - "//absl/base:core_headers", - "//absl/hash", - "@com_github_google_benchmark//:benchmark_main", - ], -) diff --git a/third_party/abseil_cpp/absl/time/CMakeLists.txt b/third_party/abseil_cpp/absl/time/CMakeLists.txt deleted file mode 100644 index 853563e875..0000000000 --- a/third_party/abseil_cpp/absl/time/CMakeLists.txt +++ /dev/null @@ -1,127 +0,0 @@ -# -# Copyright 2017 The Abseil Authors. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. -# - -absl_cc_library( - NAME - time - HDRS - "civil_time.h" - "clock.h" - "time.h" - SRCS - "civil_time.cc" - "clock.cc" - "duration.cc" - "format.cc" - "internal/get_current_time_chrono.inc" - "internal/get_current_time_posix.inc" - "time.cc" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::base - absl::civil_time - absl::core_headers - absl::int128 - absl::raw_logging_internal - absl::strings - absl::time_zone - PUBLIC -) - -absl_cc_library( - NAME - civil_time - HDRS - "internal/cctz/include/cctz/civil_time.h" - "internal/cctz/include/cctz/civil_time_detail.h" - SRCS - "internal/cctz/src/civil_time_detail.cc" - COPTS - ${ABSL_DEFAULT_COPTS} -) - -if(APPLE) - find_library(CoreFoundation CoreFoundation) -endif() - -absl_cc_library( - NAME - time_zone - HDRS - "internal/cctz/include/cctz/time_zone.h" - "internal/cctz/include/cctz/zone_info_source.h" - SRCS - "internal/cctz/src/time_zone_fixed.cc" - "internal/cctz/src/time_zone_fixed.h" - "internal/cctz/src/time_zone_format.cc" - "internal/cctz/src/time_zone_if.cc" - "internal/cctz/src/time_zone_if.h" - "internal/cctz/src/time_zone_impl.cc" - "internal/cctz/src/time_zone_impl.h" - "internal/cctz/src/time_zone_info.cc" - "internal/cctz/src/time_zone_info.h" - "internal/cctz/src/time_zone_libc.cc" - "internal/cctz/src/time_zone_libc.h" - "internal/cctz/src/time_zone_lookup.cc" - "internal/cctz/src/time_zone_posix.cc" - "internal/cctz/src/time_zone_posix.h" - "internal/cctz/src/tzfile.h" - "internal/cctz/src/zone_info_source.cc" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - $<$<PLATFORM_ID:Darwin>:${CoreFoundation}> -) - -absl_cc_library( - NAME - time_internal_test_util - HDRS - "internal/test_util.h" - SRCS - "internal/test_util.cc" - "internal/zoneinfo.inc" - COPTS - ${ABSL_DEFAULT_COPTS} - DEPS - absl::time - absl::raw_logging_internal - absl::time_zone - gmock - TESTONLY -) - -absl_cc_test( - NAME - time_test - SRCS - "civil_time_test.cc" - "clock_test.cc" - "duration_test.cc" - "format_test.cc" - "time_test.cc" - "time_zone_test.cc" - COPTS - ${ABSL_TEST_COPTS} - DEPS - absl::time_internal_test_util - absl::time - absl::config - absl::core_headers - absl::time_zone - gmock_main -) diff --git a/third_party/abseil_cpp/absl/time/civil_time.cc b/third_party/abseil_cpp/absl/time/civil_time.cc deleted file mode 100644 index bdfe9ce0ef..0000000000 --- a/third_party/abseil_cpp/absl/time/civil_time.cc +++ /dev/null @@ -1,175 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/civil_time.h" - -#include <cstdlib> -#include <string> - -#include "absl/strings/str_cat.h" -#include "absl/time/time.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -namespace { - -// Since a civil time has a larger year range than absl::Time (64-bit years vs -// 64-bit seconds, respectively) we normalize years to roughly +/- 400 years -// around the year 2400, which will produce an equivalent year in a range that -// absl::Time can handle. -inline civil_year_t NormalizeYear(civil_year_t year) { - return 2400 + year % 400; -} - -// Formats the given CivilSecond according to the given format. -std::string FormatYearAnd(string_view fmt, CivilSecond cs) { - const CivilSecond ncs(NormalizeYear(cs.year()), cs.month(), cs.day(), - cs.hour(), cs.minute(), cs.second()); - const TimeZone utc = UTCTimeZone(); - // TODO(absl-team): Avoid conversion of fmt string. - return StrCat(cs.year(), - FormatTime(std::string(fmt), FromCivil(ncs, utc), utc)); -} - -template <typename CivilT> -bool ParseYearAnd(string_view fmt, string_view s, CivilT* c) { - // Civil times support a larger year range than absl::Time, so we need to - // parse the year separately, normalize it, then use absl::ParseTime on the - // normalized string. - const std::string ss = std::string(s); // TODO(absl-team): Avoid conversion. - const char* const np = ss.c_str(); - char* endp; - errno = 0; - const civil_year_t y = - std::strtoll(np, &endp, 10); // NOLINT(runtime/deprecated_fn) - if (endp == np || errno == ERANGE) return false; - const std::string norm = StrCat(NormalizeYear(y), endp); - - const TimeZone utc = UTCTimeZone(); - Time t; - if (ParseTime(StrCat("%Y", fmt), norm, utc, &t, nullptr)) { - const auto cs = ToCivilSecond(t, utc); - *c = CivilT(y, cs.month(), cs.day(), cs.hour(), cs.minute(), cs.second()); - return true; - } - - return false; -} - -// Tries to parse the type as a CivilT1, but then assigns the result to the -// argument of type CivilT2. -template <typename CivilT1, typename CivilT2> -bool ParseAs(string_view s, CivilT2* c) { - CivilT1 t1; - if (ParseCivilTime(s, &t1)) { - *c = CivilT2(t1); - return true; - } - return false; -} - -template <typename CivilT> -bool ParseLenient(string_view s, CivilT* c) { - // A fastpath for when the given string data parses exactly into the given - // type T (e.g., s="YYYY-MM-DD" and CivilT=CivilDay). - if (ParseCivilTime(s, c)) return true; - // Try parsing as each of the 6 types, trying the most common types first - // (based on csearch results). - if (ParseAs<CivilDay>(s, c)) return true; - if (ParseAs<CivilSecond>(s, c)) return true; - if (ParseAs<CivilHour>(s, c)) return true; - if (ParseAs<CivilMonth>(s, c)) return true; - if (ParseAs<CivilMinute>(s, c)) return true; - if (ParseAs<CivilYear>(s, c)) return true; - return false; -} -} // namespace - -std::string FormatCivilTime(CivilSecond c) { - return FormatYearAnd("-%m-%d%ET%H:%M:%S", c); -} -std::string FormatCivilTime(CivilMinute c) { - return FormatYearAnd("-%m-%d%ET%H:%M", c); -} -std::string FormatCivilTime(CivilHour c) { - return FormatYearAnd("-%m-%d%ET%H", c); -} -std::string FormatCivilTime(CivilDay c) { return FormatYearAnd("-%m-%d", c); } -std::string FormatCivilTime(CivilMonth c) { return FormatYearAnd("-%m", c); } -std::string FormatCivilTime(CivilYear c) { return FormatYearAnd("", c); } - -bool ParseCivilTime(string_view s, CivilSecond* c) { - return ParseYearAnd("-%m-%d%ET%H:%M:%S", s, c); -} -bool ParseCivilTime(string_view s, CivilMinute* c) { - return ParseYearAnd("-%m-%d%ET%H:%M", s, c); -} -bool ParseCivilTime(string_view s, CivilHour* c) { - return ParseYearAnd("-%m-%d%ET%H", s, c); -} -bool ParseCivilTime(string_view s, CivilDay* c) { - return ParseYearAnd("-%m-%d", s, c); -} -bool ParseCivilTime(string_view s, CivilMonth* c) { - return ParseYearAnd("-%m", s, c); -} -bool ParseCivilTime(string_view s, CivilYear* c) { - return ParseYearAnd("", s, c); -} - -bool ParseLenientCivilTime(string_view s, CivilSecond* c) { - return ParseLenient(s, c); -} -bool ParseLenientCivilTime(string_view s, CivilMinute* c) { - return ParseLenient(s, c); -} -bool ParseLenientCivilTime(string_view s, CivilHour* c) { - return ParseLenient(s, c); -} -bool ParseLenientCivilTime(string_view s, CivilDay* c) { - return ParseLenient(s, c); -} -bool ParseLenientCivilTime(string_view s, CivilMonth* c) { - return ParseLenient(s, c); -} -bool ParseLenientCivilTime(string_view s, CivilYear* c) { - return ParseLenient(s, c); -} - -namespace time_internal { - -std::ostream& operator<<(std::ostream& os, CivilYear y) { - return os << FormatCivilTime(y); -} -std::ostream& operator<<(std::ostream& os, CivilMonth m) { - return os << FormatCivilTime(m); -} -std::ostream& operator<<(std::ostream& os, CivilDay d) { - return os << FormatCivilTime(d); -} -std::ostream& operator<<(std::ostream& os, CivilHour h) { - return os << FormatCivilTime(h); -} -std::ostream& operator<<(std::ostream& os, CivilMinute m) { - return os << FormatCivilTime(m); -} -std::ostream& operator<<(std::ostream& os, CivilSecond s) { - return os << FormatCivilTime(s); -} - -} // namespace time_internal - -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/civil_time.h b/third_party/abseil_cpp/absl/time/civil_time.h deleted file mode 100644 index bb46004434..0000000000 --- a/third_party/abseil_cpp/absl/time/civil_time.h +++ /dev/null @@ -1,538 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: civil_time.h -// ----------------------------------------------------------------------------- -// -// This header file defines abstractions for computing with "civil time". -// The term "civil time" refers to the legally recognized human-scale time -// that is represented by the six fields `YYYY-MM-DD hh:mm:ss`. A "date" -// is perhaps the most common example of a civil time (represented here as -// an `absl::CivilDay`). -// -// Modern-day civil time follows the Gregorian Calendar and is a -// time-zone-independent concept: a civil time of "2015-06-01 12:00:00", for -// example, is not tied to a time zone. Put another way, a civil time does not -// map to a unique point in time; a civil time must be mapped to an absolute -// time *through* a time zone. -// -// Because a civil time is what most people think of as "time," it is common to -// map absolute times to civil times to present to users. -// -// Time zones define the relationship between absolute and civil times. Given an -// absolute or civil time and a time zone, you can compute the other time: -// -// Civil Time = F(Absolute Time, Time Zone) -// Absolute Time = G(Civil Time, Time Zone) -// -// The Abseil time library allows you to construct such civil times from -// absolute times; consult time.h for such functionality. -// -// This library provides six classes for constructing civil-time objects, and -// provides several helper functions for rounding, iterating, and performing -// arithmetic on civil-time objects, while avoiding complications like -// daylight-saving time (DST): -// -// * `absl::CivilSecond` -// * `absl::CivilMinute` -// * `absl::CivilHour` -// * `absl::CivilDay` -// * `absl::CivilMonth` -// * `absl::CivilYear` -// -// Example: -// -// // Construct a civil-time object for a specific day -// const absl::CivilDay cd(1969, 07, 20); -// -// // Construct a civil-time object for a specific second -// const absl::CivilSecond cd(2018, 8, 1, 12, 0, 1); -// -// Note: In C++14 and later, this library is usable in a constexpr context. -// -// Example: -// -// // Valid in C++14 -// constexpr absl::CivilDay cd(1969, 07, 20); - -#ifndef ABSL_TIME_CIVIL_TIME_H_ -#define ABSL_TIME_CIVIL_TIME_H_ - -#include <string> - -#include "absl/strings/string_view.h" -#include "absl/time/internal/cctz/include/cctz/civil_time.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -namespace time_internal { -struct second_tag : cctz::detail::second_tag {}; -struct minute_tag : second_tag, cctz::detail::minute_tag {}; -struct hour_tag : minute_tag, cctz::detail::hour_tag {}; -struct day_tag : hour_tag, cctz::detail::day_tag {}; -struct month_tag : day_tag, cctz::detail::month_tag {}; -struct year_tag : month_tag, cctz::detail::year_tag {}; -} // namespace time_internal - -// ----------------------------------------------------------------------------- -// CivilSecond, CivilMinute, CivilHour, CivilDay, CivilMonth, CivilYear -// ----------------------------------------------------------------------------- -// -// Each of these civil-time types is a simple value type with the same -// interface for construction and the same six accessors for each of the civil -// time fields (year, month, day, hour, minute, and second, aka YMDHMS). These -// classes differ only in their alignment, which is indicated by the type name -// and specifies the field on which arithmetic operates. -// -// CONSTRUCTION -// -// Each of the civil-time types can be constructed in two ways: by directly -// passing to the constructor up to six integers representing the YMDHMS fields, -// or by copying the YMDHMS fields from a differently aligned civil-time type. -// Omitted fields are assigned their minimum valid value. Hours, minutes, and -// seconds will be set to 0, month and day will be set to 1. Since there is no -// minimum year, the default is 1970. -// -// Examples: -// -// absl::CivilDay default_value; // 1970-01-01 00:00:00 -// -// absl::CivilDay a(2015, 2, 3); // 2015-02-03 00:00:00 -// absl::CivilDay b(2015, 2, 3, 4, 5, 6); // 2015-02-03 00:00:00 -// absl::CivilDay c(2015); // 2015-01-01 00:00:00 -// -// absl::CivilSecond ss(2015, 2, 3, 4, 5, 6); // 2015-02-03 04:05:06 -// absl::CivilMinute mm(ss); // 2015-02-03 04:05:00 -// absl::CivilHour hh(mm); // 2015-02-03 04:00:00 -// absl::CivilDay d(hh); // 2015-02-03 00:00:00 -// absl::CivilMonth m(d); // 2015-02-01 00:00:00 -// absl::CivilYear y(m); // 2015-01-01 00:00:00 -// -// m = absl::CivilMonth(y); // 2015-01-01 00:00:00 -// d = absl::CivilDay(m); // 2015-01-01 00:00:00 -// hh = absl::CivilHour(d); // 2015-01-01 00:00:00 -// mm = absl::CivilMinute(hh); // 2015-01-01 00:00:00 -// ss = absl::CivilSecond(mm); // 2015-01-01 00:00:00 -// -// Each civil-time class is aligned to the civil-time field indicated in the -// class's name after normalization. Alignment is performed by setting all the -// inferior fields to their minimum valid value (as described above). The -// following are examples of how each of the six types would align the fields -// representing November 22, 2015 at 12:34:56 in the afternoon. (Note: the -// string format used here is not important; it's just a shorthand way of -// showing the six YMDHMS fields.) -// -// absl::CivilSecond : 2015-11-22 12:34:56 -// absl::CivilMinute : 2015-11-22 12:34:00 -// absl::CivilHour : 2015-11-22 12:00:00 -// absl::CivilDay : 2015-11-22 00:00:00 -// absl::CivilMonth : 2015-11-01 00:00:00 -// absl::CivilYear : 2015-01-01 00:00:00 -// -// Each civil-time type performs arithmetic on the field to which it is -// aligned. This means that adding 1 to an absl::CivilDay increments the day -// field (normalizing as necessary), and subtracting 7 from an absl::CivilMonth -// operates on the month field (normalizing as necessary). All arithmetic -// produces a valid civil time. Difference requires two similarly aligned -// civil-time objects and returns the scalar answer in units of the objects' -// alignment. For example, the difference between two absl::CivilHour objects -// will give an answer in units of civil hours. -// -// ALIGNMENT CONVERSION -// -// The alignment of a civil-time object cannot change, but the object may be -// used to construct a new object with a different alignment. This is referred -// to as "realigning". When realigning to a type with the same or more -// precision (e.g., absl::CivilDay -> absl::CivilSecond), the conversion may be -// performed implicitly since no information is lost. However, if information -// could be discarded (e.g., CivilSecond -> CivilDay), the conversion must -// be explicit at the call site. -// -// Examples: -// -// void UseDay(absl::CivilDay day); -// -// absl::CivilSecond cs; -// UseDay(cs); // Won't compile because data may be discarded -// UseDay(absl::CivilDay(cs)); // OK: explicit conversion -// -// absl::CivilDay cd; -// UseDay(cd); // OK: no conversion needed -// -// absl::CivilMonth cm; -// UseDay(cm); // OK: implicit conversion to absl::CivilDay -// -// NORMALIZATION -// -// Normalization takes invalid values and adjusts them to produce valid values. -// Within the civil-time library, integer arguments passed to the Civil* -// constructors may be out-of-range, in which case they are normalized by -// carrying overflow into a field of courser granularity to produce valid -// civil-time objects. This normalization enables natural arithmetic on -// constructor arguments without worrying about the field's range. -// -// Examples: -// -// // Out-of-range; normalized to 2016-11-01 -// absl::CivilDay d(2016, 10, 32); -// // Out-of-range, negative: normalized to 2016-10-30T23 -// absl::CivilHour h1(2016, 10, 31, -1); -// // Normalization is cumulative: normalized to 2016-10-30T23 -// absl::CivilHour h2(2016, 10, 32, -25); -// -// Note: If normalization is undesired, you can signal an error by comparing -// the constructor arguments to the normalized values returned by the YMDHMS -// properties. -// -// COMPARISON -// -// Comparison between civil-time objects considers all six YMDHMS fields, -// regardless of the type's alignment. Comparison between differently aligned -// civil-time types is allowed. -// -// Examples: -// -// absl::CivilDay feb_3(2015, 2, 3); // 2015-02-03 00:00:00 -// absl::CivilDay mar_4(2015, 3, 4); // 2015-03-04 00:00:00 -// // feb_3 < mar_4 -// // absl::CivilYear(feb_3) == absl::CivilYear(mar_4) -// -// absl::CivilSecond feb_3_noon(2015, 2, 3, 12, 0, 0); // 2015-02-03 12:00:00 -// // feb_3 < feb_3_noon -// // feb_3 == absl::CivilDay(feb_3_noon) -// -// // Iterates all the days of February 2015. -// for (absl::CivilDay d(2015, 2, 1); d < absl::CivilMonth(2015, 3); ++d) { -// // ... -// } -// -// ARITHMETIC -// -// Civil-time types support natural arithmetic operators such as addition, -// subtraction, and difference. Arithmetic operates on the civil-time field -// indicated in the type's name. Difference operators require arguments with -// the same alignment and return the answer in units of the alignment. -// -// Example: -// -// absl::CivilDay a(2015, 2, 3); -// ++a; // 2015-02-04 00:00:00 -// --a; // 2015-02-03 00:00:00 -// absl::CivilDay b = a + 1; // 2015-02-04 00:00:00 -// absl::CivilDay c = 1 + b; // 2015-02-05 00:00:00 -// int n = c - a; // n = 2 (civil days) -// int m = c - absl::CivilMonth(c); // Won't compile: different types. -// -// ACCESSORS -// -// Each civil-time type has accessors for all six of the civil-time fields: -// year, month, day, hour, minute, and second. -// -// civil_year_t year() -// int month() -// int day() -// int hour() -// int minute() -// int second() -// -// Recall that fields inferior to the type's alignment will be set to their -// minimum valid value. -// -// Example: -// -// absl::CivilDay d(2015, 6, 28); -// // d.year() == 2015 -// // d.month() == 6 -// // d.day() == 28 -// // d.hour() == 0 -// // d.minute() == 0 -// // d.second() == 0 -// -// CASE STUDY: Adding a month to January 31. -// -// One of the classic questions that arises when considering a civil time -// library (or a date library or a date/time library) is this: -// "What is the result of adding a month to January 31?" -// This is an interesting question because it is unclear what is meant by a -// "month", and several different answers are possible, depending on context: -// -// 1. March 3 (or 2 if a leap year), if "add a month" means to add a month to -// the current month, and adjust the date to overflow the extra days into -// March. In this case the result of "February 31" would be normalized as -// within the civil-time library. -// 2. February 28 (or 29 if a leap year), if "add a month" means to add a -// month, and adjust the date while holding the resulting month constant. -// In this case, the result of "February 31" would be truncated to the last -// day in February. -// 3. An error. The caller may get some error, an exception, an invalid date -// object, or perhaps return `false`. This may make sense because there is -// no single unambiguously correct answer to the question. -// -// Practically speaking, any answer that is not what the programmer intended -// is the wrong answer. -// -// The Abseil time library avoids this problem by making it impossible to -// ask ambiguous questions. All civil-time objects are aligned to a particular -// civil-field boundary (such as aligned to a year, month, day, hour, minute, -// or second), and arithmetic operates on the field to which the object is -// aligned. This means that in order to "add a month" the object must first be -// aligned to a month boundary, which is equivalent to the first day of that -// month. -// -// Of course, there are ways to compute an answer the question at hand using -// this Abseil time library, but they require the programmer to be explicit -// about the answer they expect. To illustrate, let's see how to compute all -// three of the above possible answers to the question of "Jan 31 plus 1 -// month": -// -// Example: -// -// const absl::CivilDay d(2015, 1, 31); -// -// // Answer 1: -// // Add 1 to the month field in the constructor, and rely on normalization. -// const auto normalized = absl::CivilDay(d.year(), d.month() + 1, d.day()); -// // normalized == 2015-03-03 (aka Feb 31) -// -// // Answer 2: -// // Add 1 to month field, capping to the end of next month. -// const auto next_month = absl::CivilMonth(d) + 1; -// const auto last_day_of_next_month = absl::CivilDay(next_month + 1) - 1; -// const auto capped = std::min(normalized, last_day_of_next_month); -// // capped == 2015-02-28 -// -// // Answer 3: -// // Signal an error if the normalized answer is not in next month. -// if (absl::CivilMonth(normalized) != next_month) { -// // error, month overflow -// } -// -using CivilSecond = - time_internal::cctz::detail::civil_time<time_internal::second_tag>; -using CivilMinute = - time_internal::cctz::detail::civil_time<time_internal::minute_tag>; -using CivilHour = - time_internal::cctz::detail::civil_time<time_internal::hour_tag>; -using CivilDay = - time_internal::cctz::detail::civil_time<time_internal::day_tag>; -using CivilMonth = - time_internal::cctz::detail::civil_time<time_internal::month_tag>; -using CivilYear = - time_internal::cctz::detail::civil_time<time_internal::year_tag>; - -// civil_year_t -// -// Type alias of a civil-time year value. This type is guaranteed to (at least) -// support any year value supported by `time_t`. -// -// Example: -// -// absl::CivilSecond cs = ...; -// absl::civil_year_t y = cs.year(); -// cs = absl::CivilSecond(y, 1, 1, 0, 0, 0); // CivilSecond(CivilYear(cs)) -// -using civil_year_t = time_internal::cctz::year_t; - -// civil_diff_t -// -// Type alias of the difference between two civil-time values. -// This type is used to indicate arguments that are not -// normalized (such as parameters to the civil-time constructors), the results -// of civil-time subtraction, or the operand to civil-time addition. -// -// Example: -// -// absl::civil_diff_t n_sec = cs1 - cs2; // cs1 == cs2 + n_sec; -// -using civil_diff_t = time_internal::cctz::diff_t; - -// Weekday::monday, Weekday::tuesday, Weekday::wednesday, Weekday::thursday, -// Weekday::friday, Weekday::saturday, Weekday::sunday -// -// The Weekday enum class represents the civil-time concept of a "weekday" with -// members for all days of the week. -// -// absl::Weekday wd = absl::Weekday::thursday; -// -using Weekday = time_internal::cctz::weekday; - -// GetWeekday() -// -// Returns the absl::Weekday for the given (realigned) civil-time value. -// -// Example: -// -// absl::CivilDay a(2015, 8, 13); -// absl::Weekday wd = absl::GetWeekday(a); // wd == absl::Weekday::thursday -// -inline Weekday GetWeekday(CivilSecond cs) { - return time_internal::cctz::get_weekday(cs); -} - -// NextWeekday() -// PrevWeekday() -// -// Returns the absl::CivilDay that strictly follows or precedes a given -// absl::CivilDay, and that falls on the given absl::Weekday. -// -// Example, given the following month: -// -// August 2015 -// Su Mo Tu We Th Fr Sa -// 1 -// 2 3 4 5 6 7 8 -// 9 10 11 12 13 14 15 -// 16 17 18 19 20 21 22 -// 23 24 25 26 27 28 29 -// 30 31 -// -// absl::CivilDay a(2015, 8, 13); -// // absl::GetWeekday(a) == absl::Weekday::thursday -// absl::CivilDay b = absl::NextWeekday(a, absl::Weekday::thursday); -// // b = 2015-08-20 -// absl::CivilDay c = absl::PrevWeekday(a, absl::Weekday::thursday); -// // c = 2015-08-06 -// -// absl::CivilDay d = ... -// // Gets the following Thursday if d is not already Thursday -// absl::CivilDay thurs1 = absl::NextWeekday(d - 1, absl::Weekday::thursday); -// // Gets the previous Thursday if d is not already Thursday -// absl::CivilDay thurs2 = absl::PrevWeekday(d + 1, absl::Weekday::thursday); -// -inline CivilDay NextWeekday(CivilDay cd, Weekday wd) { - return CivilDay(time_internal::cctz::next_weekday(cd, wd)); -} -inline CivilDay PrevWeekday(CivilDay cd, Weekday wd) { - return CivilDay(time_internal::cctz::prev_weekday(cd, wd)); -} - -// GetYearDay() -// -// Returns the day-of-year for the given (realigned) civil-time value. -// -// Example: -// -// absl::CivilDay a(2015, 1, 1); -// int yd_jan_1 = absl::GetYearDay(a); // yd_jan_1 = 1 -// absl::CivilDay b(2015, 12, 31); -// int yd_dec_31 = absl::GetYearDay(b); // yd_dec_31 = 365 -// -inline int GetYearDay(CivilSecond cs) { - return time_internal::cctz::get_yearday(cs); -} - -// FormatCivilTime() -// -// Formats the given civil-time value into a string value of the following -// format: -// -// Type | Format -// --------------------------------- -// CivilSecond | YYYY-MM-DDTHH:MM:SS -// CivilMinute | YYYY-MM-DDTHH:MM -// CivilHour | YYYY-MM-DDTHH -// CivilDay | YYYY-MM-DD -// CivilMonth | YYYY-MM -// CivilYear | YYYY -// -// Example: -// -// absl::CivilDay d = absl::CivilDay(1969, 7, 20); -// std::string day_string = absl::FormatCivilTime(d); // "1969-07-20" -// -std::string FormatCivilTime(CivilSecond c); -std::string FormatCivilTime(CivilMinute c); -std::string FormatCivilTime(CivilHour c); -std::string FormatCivilTime(CivilDay c); -std::string FormatCivilTime(CivilMonth c); -std::string FormatCivilTime(CivilYear c); - -// absl::ParseCivilTime() -// -// Parses a civil-time value from the specified `absl::string_view` into the -// passed output parameter. Returns `true` upon successful parsing. -// -// The expected form of the input string is as follows: -// -// Type | Format -// --------------------------------- -// CivilSecond | YYYY-MM-DDTHH:MM:SS -// CivilMinute | YYYY-MM-DDTHH:MM -// CivilHour | YYYY-MM-DDTHH -// CivilDay | YYYY-MM-DD -// CivilMonth | YYYY-MM -// CivilYear | YYYY -// -// Example: -// -// absl::CivilDay d; -// bool ok = absl::ParseCivilTime("2018-01-02", &d); // OK -// -// Note that parsing will fail if the string's format does not match the -// expected type exactly. `ParseLenientCivilTime()` below is more lenient. -// -bool ParseCivilTime(absl::string_view s, CivilSecond* c); -bool ParseCivilTime(absl::string_view s, CivilMinute* c); -bool ParseCivilTime(absl::string_view s, CivilHour* c); -bool ParseCivilTime(absl::string_view s, CivilDay* c); -bool ParseCivilTime(absl::string_view s, CivilMonth* c); -bool ParseCivilTime(absl::string_view s, CivilYear* c); - -// ParseLenientCivilTime() -// -// Parses any of the formats accepted by `absl::ParseCivilTime()`, but is more -// lenient if the format of the string does not exactly match the associated -// type. -// -// Example: -// -// absl::CivilDay d; -// bool ok = absl::ParseLenientCivilTime("1969-07-20", &d); // OK -// ok = absl::ParseLenientCivilTime("1969-07-20T10", &d); // OK: T10 floored -// ok = absl::ParseLenientCivilTime("1969-07", &d); // OK: day defaults to 1 -// -bool ParseLenientCivilTime(absl::string_view s, CivilSecond* c); -bool ParseLenientCivilTime(absl::string_view s, CivilMinute* c); -bool ParseLenientCivilTime(absl::string_view s, CivilHour* c); -bool ParseLenientCivilTime(absl::string_view s, CivilDay* c); -bool ParseLenientCivilTime(absl::string_view s, CivilMonth* c); -bool ParseLenientCivilTime(absl::string_view s, CivilYear* c); - -namespace time_internal { // For functions found via ADL on civil-time tags. - -// Streaming Operators -// -// Each civil-time type may be sent to an output stream using operator<<(). -// The result matches the string produced by `FormatCivilTime()`. -// -// Example: -// -// absl::CivilDay d = absl::CivilDay(1969, 7, 20); -// std::cout << "Date is: " << d << "\n"; -// -std::ostream& operator<<(std::ostream& os, CivilYear y); -std::ostream& operator<<(std::ostream& os, CivilMonth m); -std::ostream& operator<<(std::ostream& os, CivilDay d); -std::ostream& operator<<(std::ostream& os, CivilHour h); -std::ostream& operator<<(std::ostream& os, CivilMinute m); -std::ostream& operator<<(std::ostream& os, CivilSecond s); - -} // namespace time_internal - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_TIME_CIVIL_TIME_H_ diff --git a/third_party/abseil_cpp/absl/time/civil_time_benchmark.cc b/third_party/abseil_cpp/absl/time/civil_time_benchmark.cc deleted file mode 100644 index f04dbe200e..0000000000 --- a/third_party/abseil_cpp/absl/time/civil_time_benchmark.cc +++ /dev/null @@ -1,127 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/civil_time.h" - -#include <numeric> -#include <vector> - -#include "absl/hash/hash.h" -#include "benchmark/benchmark.h" - -namespace { - -// Run on (12 X 3492 MHz CPUs); 2018-11-05T13:44:29.814239103-08:00 -// CPU: Intel Haswell with HyperThreading (6 cores) dL1:32KB dL2:256KB dL3:15MB -// Benchmark Time(ns) CPU(ns) Iterations -// ---------------------------------------------------------------- -// BM_Difference_Days 14.5 14.5 48531105 -// BM_Step_Days 12.6 12.6 54876006 -// BM_Format 587 587 1000000 -// BM_Parse 692 692 1000000 -// BM_RoundTripFormatParse 1309 1309 532075 -// BM_CivilYearAbslHash 0.710 0.710 976400000 -// BM_CivilMonthAbslHash 1.13 1.13 619500000 -// BM_CivilDayAbslHash 1.70 1.70 426000000 -// BM_CivilHourAbslHash 2.45 2.45 287600000 -// BM_CivilMinuteAbslHash 3.21 3.21 226200000 -// BM_CivilSecondAbslHash 4.10 4.10 171800000 - -void BM_Difference_Days(benchmark::State& state) { - const absl::CivilDay c(2014, 8, 22); - const absl::CivilDay epoch(1970, 1, 1); - while (state.KeepRunning()) { - const absl::civil_diff_t n = c - epoch; - benchmark::DoNotOptimize(n); - } -} -BENCHMARK(BM_Difference_Days); - -void BM_Step_Days(benchmark::State& state) { - const absl::CivilDay kStart(2014, 8, 22); - absl::CivilDay c = kStart; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(++c); - } -} -BENCHMARK(BM_Step_Days); - -void BM_Format(benchmark::State& state) { - const absl::CivilSecond c(2014, 1, 2, 3, 4, 5); - while (state.KeepRunning()) { - const std::string s = absl::FormatCivilTime(c); - benchmark::DoNotOptimize(s); - } -} -BENCHMARK(BM_Format); - -void BM_Parse(benchmark::State& state) { - const std::string f = "2014-01-02T03:04:05"; - absl::CivilSecond c; - while (state.KeepRunning()) { - const bool b = absl::ParseCivilTime(f, &c); - benchmark::DoNotOptimize(b); - } -} -BENCHMARK(BM_Parse); - -void BM_RoundTripFormatParse(benchmark::State& state) { - const absl::CivilSecond c(2014, 1, 2, 3, 4, 5); - absl::CivilSecond out; - while (state.KeepRunning()) { - const bool b = absl::ParseCivilTime(absl::FormatCivilTime(c), &out); - benchmark::DoNotOptimize(b); - } -} -BENCHMARK(BM_RoundTripFormatParse); - -template <typename T> -void BM_CivilTimeAbslHash(benchmark::State& state) { - const int kSize = 100000; - std::vector<T> civil_times(kSize); - std::iota(civil_times.begin(), civil_times.end(), T(2018)); - - absl::Hash<T> absl_hasher; - while (state.KeepRunningBatch(kSize)) { - for (const T civil_time : civil_times) { - benchmark::DoNotOptimize(absl_hasher(civil_time)); - } - } -} -void BM_CivilYearAbslHash(benchmark::State& state) { - BM_CivilTimeAbslHash<absl::CivilYear>(state); -} -void BM_CivilMonthAbslHash(benchmark::State& state) { - BM_CivilTimeAbslHash<absl::CivilMonth>(state); -} -void BM_CivilDayAbslHash(benchmark::State& state) { - BM_CivilTimeAbslHash<absl::CivilDay>(state); -} -void BM_CivilHourAbslHash(benchmark::State& state) { - BM_CivilTimeAbslHash<absl::CivilHour>(state); -} -void BM_CivilMinuteAbslHash(benchmark::State& state) { - BM_CivilTimeAbslHash<absl::CivilMinute>(state); -} -void BM_CivilSecondAbslHash(benchmark::State& state) { - BM_CivilTimeAbslHash<absl::CivilSecond>(state); -} -BENCHMARK(BM_CivilYearAbslHash); -BENCHMARK(BM_CivilMonthAbslHash); -BENCHMARK(BM_CivilDayAbslHash); -BENCHMARK(BM_CivilHourAbslHash); -BENCHMARK(BM_CivilMinuteAbslHash); -BENCHMARK(BM_CivilSecondAbslHash); - -} // namespace diff --git a/third_party/abseil_cpp/absl/time/civil_time_test.cc b/third_party/abseil_cpp/absl/time/civil_time_test.cc deleted file mode 100644 index 0ebd97adbc..0000000000 --- a/third_party/abseil_cpp/absl/time/civil_time_test.cc +++ /dev/null @@ -1,1243 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/civil_time.h" - -#include <limits> -#include <sstream> -#include <type_traits> - -#include "absl/base/macros.h" -#include "gtest/gtest.h" - -namespace { - -TEST(CivilTime, DefaultConstruction) { - absl::CivilSecond ss; - EXPECT_EQ("1970-01-01T00:00:00", absl::FormatCivilTime(ss)); - - absl::CivilMinute mm; - EXPECT_EQ("1970-01-01T00:00", absl::FormatCivilTime(mm)); - - absl::CivilHour hh; - EXPECT_EQ("1970-01-01T00", absl::FormatCivilTime(hh)); - - absl::CivilDay d; - EXPECT_EQ("1970-01-01", absl::FormatCivilTime(d)); - - absl::CivilMonth m; - EXPECT_EQ("1970-01", absl::FormatCivilTime(m)); - - absl::CivilYear y; - EXPECT_EQ("1970", absl::FormatCivilTime(y)); -} - -TEST(CivilTime, StructMember) { - struct S { - absl::CivilDay day; - }; - S s = {}; - EXPECT_EQ(absl::CivilDay{}, s.day); -} - -TEST(CivilTime, FieldsConstruction) { - EXPECT_EQ("2015-01-02T03:04:05", - absl::FormatCivilTime(absl::CivilSecond(2015, 1, 2, 3, 4, 5))); - EXPECT_EQ("2015-01-02T03:04:00", - absl::FormatCivilTime(absl::CivilSecond(2015, 1, 2, 3, 4))); - EXPECT_EQ("2015-01-02T03:00:00", - absl::FormatCivilTime(absl::CivilSecond(2015, 1, 2, 3))); - EXPECT_EQ("2015-01-02T00:00:00", - absl::FormatCivilTime(absl::CivilSecond(2015, 1, 2))); - EXPECT_EQ("2015-01-01T00:00:00", - absl::FormatCivilTime(absl::CivilSecond(2015, 1))); - EXPECT_EQ("2015-01-01T00:00:00", - absl::FormatCivilTime(absl::CivilSecond(2015))); - - EXPECT_EQ("2015-01-02T03:04", - absl::FormatCivilTime(absl::CivilMinute(2015, 1, 2, 3, 4, 5))); - EXPECT_EQ("2015-01-02T03:04", - absl::FormatCivilTime(absl::CivilMinute(2015, 1, 2, 3, 4))); - EXPECT_EQ("2015-01-02T03:00", - absl::FormatCivilTime(absl::CivilMinute(2015, 1, 2, 3))); - EXPECT_EQ("2015-01-02T00:00", - absl::FormatCivilTime(absl::CivilMinute(2015, 1, 2))); - EXPECT_EQ("2015-01-01T00:00", - absl::FormatCivilTime(absl::CivilMinute(2015, 1))); - EXPECT_EQ("2015-01-01T00:00", - absl::FormatCivilTime(absl::CivilMinute(2015))); - - EXPECT_EQ("2015-01-02T03", - absl::FormatCivilTime(absl::CivilHour(2015, 1, 2, 3, 4, 5))); - EXPECT_EQ("2015-01-02T03", - absl::FormatCivilTime(absl::CivilHour(2015, 1, 2, 3, 4))); - EXPECT_EQ("2015-01-02T03", - absl::FormatCivilTime(absl::CivilHour(2015, 1, 2, 3))); - EXPECT_EQ("2015-01-02T00", - absl::FormatCivilTime(absl::CivilHour(2015, 1, 2))); - EXPECT_EQ("2015-01-01T00", - absl::FormatCivilTime(absl::CivilHour(2015, 1))); - EXPECT_EQ("2015-01-01T00", - absl::FormatCivilTime(absl::CivilHour(2015))); - - EXPECT_EQ("2015-01-02", - absl::FormatCivilTime(absl::CivilDay(2015, 1, 2, 3, 4, 5))); - EXPECT_EQ("2015-01-02", - absl::FormatCivilTime(absl::CivilDay(2015, 1, 2, 3, 4))); - EXPECT_EQ("2015-01-02", - absl::FormatCivilTime(absl::CivilDay(2015, 1, 2, 3))); - EXPECT_EQ("2015-01-02", - absl::FormatCivilTime(absl::CivilDay(2015, 1, 2))); - EXPECT_EQ("2015-01-01", - absl::FormatCivilTime(absl::CivilDay(2015, 1))); - EXPECT_EQ("2015-01-01", - absl::FormatCivilTime(absl::CivilDay(2015))); - - EXPECT_EQ("2015-01", - absl::FormatCivilTime(absl::CivilMonth(2015, 1, 2, 3, 4, 5))); - EXPECT_EQ("2015-01", - absl::FormatCivilTime(absl::CivilMonth(2015, 1, 2, 3, 4))); - EXPECT_EQ("2015-01", - absl::FormatCivilTime(absl::CivilMonth(2015, 1, 2, 3))); - EXPECT_EQ("2015-01", - absl::FormatCivilTime(absl::CivilMonth(2015, 1, 2))); - EXPECT_EQ("2015-01", - absl::FormatCivilTime(absl::CivilMonth(2015, 1))); - EXPECT_EQ("2015-01", - absl::FormatCivilTime(absl::CivilMonth(2015))); - - EXPECT_EQ("2015", - absl::FormatCivilTime(absl::CivilYear(2015, 1, 2, 3, 4, 5))); - EXPECT_EQ("2015", - absl::FormatCivilTime(absl::CivilYear(2015, 1, 2, 3, 4))); - EXPECT_EQ("2015", - absl::FormatCivilTime(absl::CivilYear(2015, 1, 2, 3))); - EXPECT_EQ("2015", - absl::FormatCivilTime(absl::CivilYear(2015, 1, 2))); - EXPECT_EQ("2015", - absl::FormatCivilTime(absl::CivilYear(2015, 1))); - EXPECT_EQ("2015", - absl::FormatCivilTime(absl::CivilYear(2015))); -} - -TEST(CivilTime, FieldsConstructionLimits) { - const int kIntMax = std::numeric_limits<int>::max(); - EXPECT_EQ("2038-01-19T03:14:07", - absl::FormatCivilTime(absl::CivilSecond( - 1970, 1, 1, 0, 0, kIntMax))); - EXPECT_EQ("6121-02-11T05:21:07", - absl::FormatCivilTime(absl::CivilSecond( - 1970, 1, 1, 0, kIntMax, kIntMax))); - EXPECT_EQ("251104-11-20T12:21:07", - absl::FormatCivilTime(absl::CivilSecond( - 1970, 1, 1, kIntMax, kIntMax, kIntMax))); - EXPECT_EQ("6130715-05-30T12:21:07", - absl::FormatCivilTime(absl::CivilSecond( - 1970, 1, kIntMax, kIntMax, kIntMax, kIntMax))); - EXPECT_EQ("185087685-11-26T12:21:07", - absl::FormatCivilTime(absl::CivilSecond( - 1970, kIntMax, kIntMax, kIntMax, kIntMax, kIntMax))); - - const int kIntMin = std::numeric_limits<int>::min(); - EXPECT_EQ("1901-12-13T20:45:52", - absl::FormatCivilTime(absl::CivilSecond( - 1970, 1, 1, 0, 0, kIntMin))); - EXPECT_EQ("-2182-11-20T18:37:52", - absl::FormatCivilTime(absl::CivilSecond( - 1970, 1, 1, 0, kIntMin, kIntMin))); - EXPECT_EQ("-247165-02-11T10:37:52", - absl::FormatCivilTime(absl::CivilSecond( - 1970, 1, 1, kIntMin, kIntMin, kIntMin))); - EXPECT_EQ("-6126776-08-01T10:37:52", - absl::FormatCivilTime(absl::CivilSecond( - 1970, 1, kIntMin, kIntMin, kIntMin, kIntMin))); - EXPECT_EQ("-185083747-10-31T10:37:52", - absl::FormatCivilTime(absl::CivilSecond( - 1970, kIntMin, kIntMin, kIntMin, kIntMin, kIntMin))); -} - -TEST(CivilTime, RangeLimits) { - const absl::civil_year_t kYearMax = - std::numeric_limits<absl::civil_year_t>::max(); - EXPECT_EQ(absl::CivilYear(kYearMax), - absl::CivilYear::max()); - EXPECT_EQ(absl::CivilMonth(kYearMax, 12), - absl::CivilMonth::max()); - EXPECT_EQ(absl::CivilDay(kYearMax, 12, 31), - absl::CivilDay::max()); - EXPECT_EQ(absl::CivilHour(kYearMax, 12, 31, 23), - absl::CivilHour::max()); - EXPECT_EQ(absl::CivilMinute(kYearMax, 12, 31, 23, 59), - absl::CivilMinute::max()); - EXPECT_EQ(absl::CivilSecond(kYearMax, 12, 31, 23, 59, 59), - absl::CivilSecond::max()); - - const absl::civil_year_t kYearMin = - std::numeric_limits<absl::civil_year_t>::min(); - EXPECT_EQ(absl::CivilYear(kYearMin), - absl::CivilYear::min()); - EXPECT_EQ(absl::CivilMonth(kYearMin, 1), - absl::CivilMonth::min()); - EXPECT_EQ(absl::CivilDay(kYearMin, 1, 1), - absl::CivilDay::min()); - EXPECT_EQ(absl::CivilHour(kYearMin, 1, 1, 0), - absl::CivilHour::min()); - EXPECT_EQ(absl::CivilMinute(kYearMin, 1, 1, 0, 0), - absl::CivilMinute::min()); - EXPECT_EQ(absl::CivilSecond(kYearMin, 1, 1, 0, 0, 0), - absl::CivilSecond::min()); -} - -TEST(CivilTime, ImplicitCrossAlignment) { - absl::CivilYear year(2015); - absl::CivilMonth month = year; - absl::CivilDay day = month; - absl::CivilHour hour = day; - absl::CivilMinute minute = hour; - absl::CivilSecond second = minute; - - second = year; - EXPECT_EQ(second, year); - second = month; - EXPECT_EQ(second, month); - second = day; - EXPECT_EQ(second, day); - second = hour; - EXPECT_EQ(second, hour); - second = minute; - EXPECT_EQ(second, minute); - - minute = year; - EXPECT_EQ(minute, year); - minute = month; - EXPECT_EQ(minute, month); - minute = day; - EXPECT_EQ(minute, day); - minute = hour; - EXPECT_EQ(minute, hour); - - hour = year; - EXPECT_EQ(hour, year); - hour = month; - EXPECT_EQ(hour, month); - hour = day; - EXPECT_EQ(hour, day); - - day = year; - EXPECT_EQ(day, year); - day = month; - EXPECT_EQ(day, month); - - month = year; - EXPECT_EQ(month, year); - - // Ensures unsafe conversions are not allowed. - EXPECT_FALSE( - (std::is_convertible<absl::CivilSecond, absl::CivilMinute>::value)); - EXPECT_FALSE( - (std::is_convertible<absl::CivilSecond, absl::CivilHour>::value)); - EXPECT_FALSE( - (std::is_convertible<absl::CivilSecond, absl::CivilDay>::value)); - EXPECT_FALSE( - (std::is_convertible<absl::CivilSecond, absl::CivilMonth>::value)); - EXPECT_FALSE( - (std::is_convertible<absl::CivilSecond, absl::CivilYear>::value)); - - EXPECT_FALSE( - (std::is_convertible<absl::CivilMinute, absl::CivilHour>::value)); - EXPECT_FALSE( - (std::is_convertible<absl::CivilMinute, absl::CivilDay>::value)); - EXPECT_FALSE( - (std::is_convertible<absl::CivilMinute, absl::CivilMonth>::value)); - EXPECT_FALSE( - (std::is_convertible<absl::CivilMinute, absl::CivilYear>::value)); - - EXPECT_FALSE( - (std::is_convertible<absl::CivilHour, absl::CivilDay>::value)); - EXPECT_FALSE( - (std::is_convertible<absl::CivilHour, absl::CivilMonth>::value)); - EXPECT_FALSE( - (std::is_convertible<absl::CivilHour, absl::CivilYear>::value)); - - EXPECT_FALSE( - (std::is_convertible<absl::CivilDay, absl::CivilMonth>::value)); - EXPECT_FALSE( - (std::is_convertible<absl::CivilDay, absl::CivilYear>::value)); - - EXPECT_FALSE( - (std::is_convertible<absl::CivilMonth, absl::CivilYear>::value)); -} - -TEST(CivilTime, ExplicitCrossAlignment) { - // - // Assign from smaller units -> larger units - // - - absl::CivilSecond second(2015, 1, 2, 3, 4, 5); - EXPECT_EQ("2015-01-02T03:04:05", absl::FormatCivilTime(second)); - - absl::CivilMinute minute(second); - EXPECT_EQ("2015-01-02T03:04", absl::FormatCivilTime(minute)); - - absl::CivilHour hour(minute); - EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(hour)); - - absl::CivilDay day(hour); - EXPECT_EQ("2015-01-02", absl::FormatCivilTime(day)); - - absl::CivilMonth month(day); - EXPECT_EQ("2015-01", absl::FormatCivilTime(month)); - - absl::CivilYear year(month); - EXPECT_EQ("2015", absl::FormatCivilTime(year)); - - // - // Now assign from larger units -> smaller units - // - - month = absl::CivilMonth(year); - EXPECT_EQ("2015-01", absl::FormatCivilTime(month)); - - day = absl::CivilDay(month); - EXPECT_EQ("2015-01-01", absl::FormatCivilTime(day)); - - hour = absl::CivilHour(day); - EXPECT_EQ("2015-01-01T00", absl::FormatCivilTime(hour)); - - minute = absl::CivilMinute(hour); - EXPECT_EQ("2015-01-01T00:00", absl::FormatCivilTime(minute)); - - second = absl::CivilSecond(minute); - EXPECT_EQ("2015-01-01T00:00:00", absl::FormatCivilTime(second)); -} - -// Metafunction to test whether difference is allowed between two types. -template <typename T1, typename T2> -struct HasDiff { - template <typename U1, typename U2> - static std::false_type test(...); - template <typename U1, typename U2> - static std::true_type test(decltype(std::declval<U1>() - std::declval<U2>())); - static constexpr bool value = decltype(test<T1, T2>(0))::value; -}; - -TEST(CivilTime, DisallowCrossAlignedDifference) { - // Difference is allowed between types with the same alignment. - static_assert(HasDiff<absl::CivilSecond, absl::CivilSecond>::value, ""); - static_assert(HasDiff<absl::CivilMinute, absl::CivilMinute>::value, ""); - static_assert(HasDiff<absl::CivilHour, absl::CivilHour>::value, ""); - static_assert(HasDiff<absl::CivilDay, absl::CivilDay>::value, ""); - static_assert(HasDiff<absl::CivilMonth, absl::CivilMonth>::value, ""); - static_assert(HasDiff<absl::CivilYear, absl::CivilYear>::value, ""); - - // Difference is disallowed between types with different alignments. - static_assert(!HasDiff<absl::CivilSecond, absl::CivilMinute>::value, ""); - static_assert(!HasDiff<absl::CivilSecond, absl::CivilHour>::value, ""); - static_assert(!HasDiff<absl::CivilSecond, absl::CivilDay>::value, ""); - static_assert(!HasDiff<absl::CivilSecond, absl::CivilMonth>::value, ""); - static_assert(!HasDiff<absl::CivilSecond, absl::CivilYear>::value, ""); - - static_assert(!HasDiff<absl::CivilMinute, absl::CivilHour>::value, ""); - static_assert(!HasDiff<absl::CivilMinute, absl::CivilDay>::value, ""); - static_assert(!HasDiff<absl::CivilMinute, absl::CivilMonth>::value, ""); - static_assert(!HasDiff<absl::CivilMinute, absl::CivilYear>::value, ""); - - static_assert(!HasDiff<absl::CivilHour, absl::CivilDay>::value, ""); - static_assert(!HasDiff<absl::CivilHour, absl::CivilMonth>::value, ""); - static_assert(!HasDiff<absl::CivilHour, absl::CivilYear>::value, ""); - - static_assert(!HasDiff<absl::CivilDay, absl::CivilMonth>::value, ""); - static_assert(!HasDiff<absl::CivilDay, absl::CivilYear>::value, ""); - - static_assert(!HasDiff<absl::CivilMonth, absl::CivilYear>::value, ""); -} - -TEST(CivilTime, ValueSemantics) { - const absl::CivilHour a(2015, 1, 2, 3); - const absl::CivilHour b = a; - const absl::CivilHour c(b); - absl::CivilHour d; - d = c; - EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(d)); -} - -TEST(CivilTime, Relational) { - // Tests that the alignment unit is ignored in comparison. - const absl::CivilYear year(2014); - const absl::CivilMonth month(year); - EXPECT_EQ(year, month); - -#define TEST_RELATIONAL(OLDER, YOUNGER) \ - do { \ - EXPECT_FALSE(OLDER < OLDER); \ - EXPECT_FALSE(OLDER > OLDER); \ - EXPECT_TRUE(OLDER >= OLDER); \ - EXPECT_TRUE(OLDER <= OLDER); \ - EXPECT_FALSE(YOUNGER < YOUNGER); \ - EXPECT_FALSE(YOUNGER > YOUNGER); \ - EXPECT_TRUE(YOUNGER >= YOUNGER); \ - EXPECT_TRUE(YOUNGER <= YOUNGER); \ - EXPECT_EQ(OLDER, OLDER); \ - EXPECT_NE(OLDER, YOUNGER); \ - EXPECT_LT(OLDER, YOUNGER); \ - EXPECT_LE(OLDER, YOUNGER); \ - EXPECT_GT(YOUNGER, OLDER); \ - EXPECT_GE(YOUNGER, OLDER); \ - } while (0) - - // Alignment is ignored in comparison (verified above), so CivilSecond is - // used to test comparison in all field positions. - TEST_RELATIONAL(absl::CivilSecond(2014, 1, 1, 0, 0, 0), - absl::CivilSecond(2015, 1, 1, 0, 0, 0)); - TEST_RELATIONAL(absl::CivilSecond(2014, 1, 1, 0, 0, 0), - absl::CivilSecond(2014, 2, 1, 0, 0, 0)); - TEST_RELATIONAL(absl::CivilSecond(2014, 1, 1, 0, 0, 0), - absl::CivilSecond(2014, 1, 2, 0, 0, 0)); - TEST_RELATIONAL(absl::CivilSecond(2014, 1, 1, 0, 0, 0), - absl::CivilSecond(2014, 1, 1, 1, 0, 0)); - TEST_RELATIONAL(absl::CivilSecond(2014, 1, 1, 1, 0, 0), - absl::CivilSecond(2014, 1, 1, 1, 1, 0)); - TEST_RELATIONAL(absl::CivilSecond(2014, 1, 1, 1, 1, 0), - absl::CivilSecond(2014, 1, 1, 1, 1, 1)); - - // Tests the relational operators of two different civil-time types. - TEST_RELATIONAL(absl::CivilDay(2014, 1, 1), - absl::CivilMinute(2014, 1, 1, 1, 1)); - TEST_RELATIONAL(absl::CivilDay(2014, 1, 1), - absl::CivilMonth(2014, 2)); - -#undef TEST_RELATIONAL -} - -TEST(CivilTime, Arithmetic) { - absl::CivilSecond second(2015, 1, 2, 3, 4, 5); - EXPECT_EQ("2015-01-02T03:04:06", absl::FormatCivilTime(second += 1)); - EXPECT_EQ("2015-01-02T03:04:07", absl::FormatCivilTime(second + 1)); - EXPECT_EQ("2015-01-02T03:04:08", absl::FormatCivilTime(2 + second)); - EXPECT_EQ("2015-01-02T03:04:05", absl::FormatCivilTime(second - 1)); - EXPECT_EQ("2015-01-02T03:04:05", absl::FormatCivilTime(second -= 1)); - EXPECT_EQ("2015-01-02T03:04:05", absl::FormatCivilTime(second++)); - EXPECT_EQ("2015-01-02T03:04:07", absl::FormatCivilTime(++second)); - EXPECT_EQ("2015-01-02T03:04:07", absl::FormatCivilTime(second--)); - EXPECT_EQ("2015-01-02T03:04:05", absl::FormatCivilTime(--second)); - - absl::CivilMinute minute(2015, 1, 2, 3, 4); - EXPECT_EQ("2015-01-02T03:05", absl::FormatCivilTime(minute += 1)); - EXPECT_EQ("2015-01-02T03:06", absl::FormatCivilTime(minute + 1)); - EXPECT_EQ("2015-01-02T03:07", absl::FormatCivilTime(2 + minute)); - EXPECT_EQ("2015-01-02T03:04", absl::FormatCivilTime(minute - 1)); - EXPECT_EQ("2015-01-02T03:04", absl::FormatCivilTime(minute -= 1)); - EXPECT_EQ("2015-01-02T03:04", absl::FormatCivilTime(minute++)); - EXPECT_EQ("2015-01-02T03:06", absl::FormatCivilTime(++minute)); - EXPECT_EQ("2015-01-02T03:06", absl::FormatCivilTime(minute--)); - EXPECT_EQ("2015-01-02T03:04", absl::FormatCivilTime(--minute)); - - absl::CivilHour hour(2015, 1, 2, 3); - EXPECT_EQ("2015-01-02T04", absl::FormatCivilTime(hour += 1)); - EXPECT_EQ("2015-01-02T05", absl::FormatCivilTime(hour + 1)); - EXPECT_EQ("2015-01-02T06", absl::FormatCivilTime(2 + hour)); - EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(hour - 1)); - EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(hour -= 1)); - EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(hour++)); - EXPECT_EQ("2015-01-02T05", absl::FormatCivilTime(++hour)); - EXPECT_EQ("2015-01-02T05", absl::FormatCivilTime(hour--)); - EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(--hour)); - - absl::CivilDay day(2015, 1, 2); - EXPECT_EQ("2015-01-03", absl::FormatCivilTime(day += 1)); - EXPECT_EQ("2015-01-04", absl::FormatCivilTime(day + 1)); - EXPECT_EQ("2015-01-05", absl::FormatCivilTime(2 + day)); - EXPECT_EQ("2015-01-02", absl::FormatCivilTime(day - 1)); - EXPECT_EQ("2015-01-02", absl::FormatCivilTime(day -= 1)); - EXPECT_EQ("2015-01-02", absl::FormatCivilTime(day++)); - EXPECT_EQ("2015-01-04", absl::FormatCivilTime(++day)); - EXPECT_EQ("2015-01-04", absl::FormatCivilTime(day--)); - EXPECT_EQ("2015-01-02", absl::FormatCivilTime(--day)); - - absl::CivilMonth month(2015, 1); - EXPECT_EQ("2015-02", absl::FormatCivilTime(month += 1)); - EXPECT_EQ("2015-03", absl::FormatCivilTime(month + 1)); - EXPECT_EQ("2015-04", absl::FormatCivilTime(2 + month)); - EXPECT_EQ("2015-01", absl::FormatCivilTime(month - 1)); - EXPECT_EQ("2015-01", absl::FormatCivilTime(month -= 1)); - EXPECT_EQ("2015-01", absl::FormatCivilTime(month++)); - EXPECT_EQ("2015-03", absl::FormatCivilTime(++month)); - EXPECT_EQ("2015-03", absl::FormatCivilTime(month--)); - EXPECT_EQ("2015-01", absl::FormatCivilTime(--month)); - - absl::CivilYear year(2015); - EXPECT_EQ("2016", absl::FormatCivilTime(year += 1)); - EXPECT_EQ("2017", absl::FormatCivilTime(year + 1)); - EXPECT_EQ("2018", absl::FormatCivilTime(2 + year)); - EXPECT_EQ("2015", absl::FormatCivilTime(year - 1)); - EXPECT_EQ("2015", absl::FormatCivilTime(year -= 1)); - EXPECT_EQ("2015", absl::FormatCivilTime(year++)); - EXPECT_EQ("2017", absl::FormatCivilTime(++year)); - EXPECT_EQ("2017", absl::FormatCivilTime(year--)); - EXPECT_EQ("2015", absl::FormatCivilTime(--year)); -} - -TEST(CivilTime, ArithmeticLimits) { - const int kIntMax = std::numeric_limits<int>::max(); - const int kIntMin = std::numeric_limits<int>::min(); - - absl::CivilSecond second(1970, 1, 1, 0, 0, 0); - second += kIntMax; - EXPECT_EQ("2038-01-19T03:14:07", absl::FormatCivilTime(second)); - second -= kIntMax; - EXPECT_EQ("1970-01-01T00:00:00", absl::FormatCivilTime(second)); - second += kIntMin; - EXPECT_EQ("1901-12-13T20:45:52", absl::FormatCivilTime(second)); - second -= kIntMin; - EXPECT_EQ("1970-01-01T00:00:00", absl::FormatCivilTime(second)); - - absl::CivilMinute minute(1970, 1, 1, 0, 0); - minute += kIntMax; - EXPECT_EQ("6053-01-23T02:07", absl::FormatCivilTime(minute)); - minute -= kIntMax; - EXPECT_EQ("1970-01-01T00:00", absl::FormatCivilTime(minute)); - minute += kIntMin; - EXPECT_EQ("-2114-12-08T21:52", absl::FormatCivilTime(minute)); - minute -= kIntMin; - EXPECT_EQ("1970-01-01T00:00", absl::FormatCivilTime(minute)); - - absl::CivilHour hour(1970, 1, 1, 0); - hour += kIntMax; - EXPECT_EQ("246953-10-09T07", absl::FormatCivilTime(hour)); - hour -= kIntMax; - EXPECT_EQ("1970-01-01T00", absl::FormatCivilTime(hour)); - hour += kIntMin; - EXPECT_EQ("-243014-03-24T16", absl::FormatCivilTime(hour)); - hour -= kIntMin; - EXPECT_EQ("1970-01-01T00", absl::FormatCivilTime(hour)); - - absl::CivilDay day(1970, 1, 1); - day += kIntMax; - EXPECT_EQ("5881580-07-11", absl::FormatCivilTime(day)); - day -= kIntMax; - EXPECT_EQ("1970-01-01", absl::FormatCivilTime(day)); - day += kIntMin; - EXPECT_EQ("-5877641-06-23", absl::FormatCivilTime(day)); - day -= kIntMin; - EXPECT_EQ("1970-01-01", absl::FormatCivilTime(day)); - - absl::CivilMonth month(1970, 1); - month += kIntMax; - EXPECT_EQ("178958940-08", absl::FormatCivilTime(month)); - month -= kIntMax; - EXPECT_EQ("1970-01", absl::FormatCivilTime(month)); - month += kIntMin; - EXPECT_EQ("-178955001-05", absl::FormatCivilTime(month)); - month -= kIntMin; - EXPECT_EQ("1970-01", absl::FormatCivilTime(month)); - - absl::CivilYear year(0); - year += kIntMax; - EXPECT_EQ("2147483647", absl::FormatCivilTime(year)); - year -= kIntMax; - EXPECT_EQ("0", absl::FormatCivilTime(year)); - year += kIntMin; - EXPECT_EQ("-2147483648", absl::FormatCivilTime(year)); - year -= kIntMin; - EXPECT_EQ("0", absl::FormatCivilTime(year)); -} - -TEST(CivilTime, Difference) { - absl::CivilSecond second(2015, 1, 2, 3, 4, 5); - EXPECT_EQ(0, second - second); - EXPECT_EQ(10, (second + 10) - second); - EXPECT_EQ(-10, (second - 10) - second); - - absl::CivilMinute minute(2015, 1, 2, 3, 4); - EXPECT_EQ(0, minute - minute); - EXPECT_EQ(10, (minute + 10) - minute); - EXPECT_EQ(-10, (minute - 10) - minute); - - absl::CivilHour hour(2015, 1, 2, 3); - EXPECT_EQ(0, hour - hour); - EXPECT_EQ(10, (hour + 10) - hour); - EXPECT_EQ(-10, (hour - 10) - hour); - - absl::CivilDay day(2015, 1, 2); - EXPECT_EQ(0, day - day); - EXPECT_EQ(10, (day + 10) - day); - EXPECT_EQ(-10, (day - 10) - day); - - absl::CivilMonth month(2015, 1); - EXPECT_EQ(0, month - month); - EXPECT_EQ(10, (month + 10) - month); - EXPECT_EQ(-10, (month - 10) - month); - - absl::CivilYear year(2015); - EXPECT_EQ(0, year - year); - EXPECT_EQ(10, (year + 10) - year); - EXPECT_EQ(-10, (year - 10) - year); -} - -TEST(CivilTime, DifferenceLimits) { - const absl::civil_diff_t kDiffMax = - std::numeric_limits<absl::civil_diff_t>::max(); - const absl::civil_diff_t kDiffMin = - std::numeric_limits<absl::civil_diff_t>::min(); - - // Check day arithmetic at the end of the year range. - const absl::CivilDay max_day(kDiffMax, 12, 31); - EXPECT_EQ(1, max_day - (max_day - 1)); - EXPECT_EQ(-1, (max_day - 1) - max_day); - - // Check day arithmetic at the start of the year range. - const absl::CivilDay min_day(kDiffMin, 1, 1); - EXPECT_EQ(1, (min_day + 1) - min_day); - EXPECT_EQ(-1, min_day - (min_day + 1)); - - // Check the limits of the return value. - const absl::CivilDay d1(1970, 1, 1); - const absl::CivilDay d2(25252734927768524, 7, 27); - EXPECT_EQ(kDiffMax, d2 - d1); - EXPECT_EQ(kDiffMin, d1 - (d2 + 1)); -} - -TEST(CivilTime, Properties) { - absl::CivilSecond ss(2015, 2, 3, 4, 5, 6); - EXPECT_EQ(2015, ss.year()); - EXPECT_EQ(2, ss.month()); - EXPECT_EQ(3, ss.day()); - EXPECT_EQ(4, ss.hour()); - EXPECT_EQ(5, ss.minute()); - EXPECT_EQ(6, ss.second()); - EXPECT_EQ(absl::Weekday::tuesday, absl::GetWeekday(ss)); - EXPECT_EQ(34, absl::GetYearDay(ss)); - - absl::CivilMinute mm(2015, 2, 3, 4, 5, 6); - EXPECT_EQ(2015, mm.year()); - EXPECT_EQ(2, mm.month()); - EXPECT_EQ(3, mm.day()); - EXPECT_EQ(4, mm.hour()); - EXPECT_EQ(5, mm.minute()); - EXPECT_EQ(0, mm.second()); - EXPECT_EQ(absl::Weekday::tuesday, absl::GetWeekday(mm)); - EXPECT_EQ(34, absl::GetYearDay(mm)); - - absl::CivilHour hh(2015, 2, 3, 4, 5, 6); - EXPECT_EQ(2015, hh.year()); - EXPECT_EQ(2, hh.month()); - EXPECT_EQ(3, hh.day()); - EXPECT_EQ(4, hh.hour()); - EXPECT_EQ(0, hh.minute()); - EXPECT_EQ(0, hh.second()); - EXPECT_EQ(absl::Weekday::tuesday, absl::GetWeekday(hh)); - EXPECT_EQ(34, absl::GetYearDay(hh)); - - absl::CivilDay d(2015, 2, 3, 4, 5, 6); - EXPECT_EQ(2015, d.year()); - EXPECT_EQ(2, d.month()); - EXPECT_EQ(3, d.day()); - EXPECT_EQ(0, d.hour()); - EXPECT_EQ(0, d.minute()); - EXPECT_EQ(0, d.second()); - EXPECT_EQ(absl::Weekday::tuesday, absl::GetWeekday(d)); - EXPECT_EQ(34, absl::GetYearDay(d)); - - absl::CivilMonth m(2015, 2, 3, 4, 5, 6); - EXPECT_EQ(2015, m.year()); - EXPECT_EQ(2, m.month()); - EXPECT_EQ(1, m.day()); - EXPECT_EQ(0, m.hour()); - EXPECT_EQ(0, m.minute()); - EXPECT_EQ(0, m.second()); - EXPECT_EQ(absl::Weekday::sunday, absl::GetWeekday(m)); - EXPECT_EQ(32, absl::GetYearDay(m)); - - absl::CivilYear y(2015, 2, 3, 4, 5, 6); - EXPECT_EQ(2015, y.year()); - EXPECT_EQ(1, y.month()); - EXPECT_EQ(1, y.day()); - EXPECT_EQ(0, y.hour()); - EXPECT_EQ(0, y.minute()); - EXPECT_EQ(0, y.second()); - EXPECT_EQ(absl::Weekday::thursday, absl::GetWeekday(y)); - EXPECT_EQ(1, absl::GetYearDay(y)); -} - -TEST(CivilTime, Format) { - absl::CivilSecond ss; - EXPECT_EQ("1970-01-01T00:00:00", absl::FormatCivilTime(ss)); - - absl::CivilMinute mm; - EXPECT_EQ("1970-01-01T00:00", absl::FormatCivilTime(mm)); - - absl::CivilHour hh; - EXPECT_EQ("1970-01-01T00", absl::FormatCivilTime(hh)); - - absl::CivilDay d; - EXPECT_EQ("1970-01-01", absl::FormatCivilTime(d)); - - absl::CivilMonth m; - EXPECT_EQ("1970-01", absl::FormatCivilTime(m)); - - absl::CivilYear y; - EXPECT_EQ("1970", absl::FormatCivilTime(y)); -} - -TEST(CivilTime, Parse) { - absl::CivilSecond ss; - absl::CivilMinute mm; - absl::CivilHour hh; - absl::CivilDay d; - absl::CivilMonth m; - absl::CivilYear y; - - // CivilSecond OK; others fail - EXPECT_TRUE(absl::ParseCivilTime("2015-01-02T03:04:05", &ss)); - EXPECT_EQ("2015-01-02T03:04:05", absl::FormatCivilTime(ss)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03:04:05", &mm)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03:04:05", &hh)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03:04:05", &d)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03:04:05", &m)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03:04:05", &y)); - - // CivilMinute OK; others fail - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03:04", &ss)); - EXPECT_TRUE(absl::ParseCivilTime("2015-01-02T03:04", &mm)); - EXPECT_EQ("2015-01-02T03:04", absl::FormatCivilTime(mm)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03:04", &hh)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03:04", &d)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03:04", &m)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03:04", &y)); - - // CivilHour OK; others fail - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03", &ss)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03", &mm)); - EXPECT_TRUE(absl::ParseCivilTime("2015-01-02T03", &hh)); - EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(hh)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03", &d)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03", &m)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02T03", &y)); - - // CivilDay OK; others fail - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02", &ss)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02", &mm)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02", &hh)); - EXPECT_TRUE(absl::ParseCivilTime("2015-01-02", &d)); - EXPECT_EQ("2015-01-02", absl::FormatCivilTime(d)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02", &m)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01-02", &y)); - - // CivilMonth OK; others fail - EXPECT_FALSE(absl::ParseCivilTime("2015-01", &ss)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01", &mm)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01", &hh)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01", &d)); - EXPECT_TRUE(absl::ParseCivilTime("2015-01", &m)); - EXPECT_EQ("2015-01", absl::FormatCivilTime(m)); - EXPECT_FALSE(absl::ParseCivilTime("2015-01", &y)); - - // CivilYear OK; others fail - EXPECT_FALSE(absl::ParseCivilTime("2015", &ss)); - EXPECT_FALSE(absl::ParseCivilTime("2015", &mm)); - EXPECT_FALSE(absl::ParseCivilTime("2015", &hh)); - EXPECT_FALSE(absl::ParseCivilTime("2015", &d)); - EXPECT_FALSE(absl::ParseCivilTime("2015", &m)); - EXPECT_TRUE(absl::ParseCivilTime("2015", &y)); - EXPECT_EQ("2015", absl::FormatCivilTime(y)); -} - -TEST(CivilTime, FormatAndParseLenient) { - absl::CivilSecond ss; - EXPECT_EQ("1970-01-01T00:00:00", absl::FormatCivilTime(ss)); - - absl::CivilMinute mm; - EXPECT_EQ("1970-01-01T00:00", absl::FormatCivilTime(mm)); - - absl::CivilHour hh; - EXPECT_EQ("1970-01-01T00", absl::FormatCivilTime(hh)); - - absl::CivilDay d; - EXPECT_EQ("1970-01-01", absl::FormatCivilTime(d)); - - absl::CivilMonth m; - EXPECT_EQ("1970-01", absl::FormatCivilTime(m)); - - absl::CivilYear y; - EXPECT_EQ("1970", absl::FormatCivilTime(y)); - - EXPECT_TRUE(absl::ParseLenientCivilTime("2015-01-02T03:04:05", &ss)); - EXPECT_EQ("2015-01-02T03:04:05", absl::FormatCivilTime(ss)); - - EXPECT_TRUE(absl::ParseLenientCivilTime("2015-01-02T03:04:05", &mm)); - EXPECT_EQ("2015-01-02T03:04", absl::FormatCivilTime(mm)); - - EXPECT_TRUE(absl::ParseLenientCivilTime("2015-01-02T03:04:05", &hh)); - EXPECT_EQ("2015-01-02T03", absl::FormatCivilTime(hh)); - - EXPECT_TRUE(absl::ParseLenientCivilTime("2015-01-02T03:04:05", &d)); - EXPECT_EQ("2015-01-02", absl::FormatCivilTime(d)); - - EXPECT_TRUE(absl::ParseLenientCivilTime("2015-01-02T03:04:05", &m)); - EXPECT_EQ("2015-01", absl::FormatCivilTime(m)); - - EXPECT_TRUE(absl::ParseLenientCivilTime("2015-01-02T03:04:05", &y)); - EXPECT_EQ("2015", absl::FormatCivilTime(y)); -} - -TEST(CivilTime, ParseEdgeCases) { - absl::CivilSecond ss; - EXPECT_TRUE( - absl::ParseLenientCivilTime("9223372036854775807-12-31T23:59:59", &ss)); - EXPECT_EQ("9223372036854775807-12-31T23:59:59", absl::FormatCivilTime(ss)); - EXPECT_TRUE( - absl::ParseLenientCivilTime("-9223372036854775808-01-01T00:00:00", &ss)); - EXPECT_EQ("-9223372036854775808-01-01T00:00:00", absl::FormatCivilTime(ss)); - - absl::CivilMinute mm; - EXPECT_TRUE( - absl::ParseLenientCivilTime("9223372036854775807-12-31T23:59", &mm)); - EXPECT_EQ("9223372036854775807-12-31T23:59", absl::FormatCivilTime(mm)); - EXPECT_TRUE( - absl::ParseLenientCivilTime("-9223372036854775808-01-01T00:00", &mm)); - EXPECT_EQ("-9223372036854775808-01-01T00:00", absl::FormatCivilTime(mm)); - - absl::CivilHour hh; - EXPECT_TRUE( - absl::ParseLenientCivilTime("9223372036854775807-12-31T23", &hh)); - EXPECT_EQ("9223372036854775807-12-31T23", absl::FormatCivilTime(hh)); - EXPECT_TRUE( - absl::ParseLenientCivilTime("-9223372036854775808-01-01T00", &hh)); - EXPECT_EQ("-9223372036854775808-01-01T00", absl::FormatCivilTime(hh)); - - absl::CivilDay d; - EXPECT_TRUE(absl::ParseLenientCivilTime("9223372036854775807-12-31", &d)); - EXPECT_EQ("9223372036854775807-12-31", absl::FormatCivilTime(d)); - EXPECT_TRUE(absl::ParseLenientCivilTime("-9223372036854775808-01-01", &d)); - EXPECT_EQ("-9223372036854775808-01-01", absl::FormatCivilTime(d)); - - absl::CivilMonth m; - EXPECT_TRUE(absl::ParseLenientCivilTime("9223372036854775807-12", &m)); - EXPECT_EQ("9223372036854775807-12", absl::FormatCivilTime(m)); - EXPECT_TRUE(absl::ParseLenientCivilTime("-9223372036854775808-01", &m)); - EXPECT_EQ("-9223372036854775808-01", absl::FormatCivilTime(m)); - - absl::CivilYear y; - EXPECT_TRUE(absl::ParseLenientCivilTime("9223372036854775807", &y)); - EXPECT_EQ("9223372036854775807", absl::FormatCivilTime(y)); - EXPECT_TRUE(absl::ParseLenientCivilTime("-9223372036854775808", &y)); - EXPECT_EQ("-9223372036854775808", absl::FormatCivilTime(y)); - - // Tests some valid, but interesting, cases - EXPECT_TRUE(absl::ParseLenientCivilTime("0", &ss)) << ss; - EXPECT_EQ(absl::CivilYear(0), ss); - EXPECT_TRUE(absl::ParseLenientCivilTime("0-1", &ss)) << ss; - EXPECT_EQ(absl::CivilMonth(0, 1), ss); - EXPECT_TRUE(absl::ParseLenientCivilTime(" 2015 ", &ss)) << ss; - EXPECT_EQ(absl::CivilYear(2015), ss); - EXPECT_TRUE(absl::ParseLenientCivilTime(" 2015-6 ", &ss)) << ss; - EXPECT_EQ(absl::CivilMonth(2015, 6), ss); - EXPECT_TRUE(absl::ParseLenientCivilTime("2015-6-7", &ss)) << ss; - EXPECT_EQ(absl::CivilDay(2015, 6, 7), ss); - EXPECT_TRUE(absl::ParseLenientCivilTime(" 2015-6-7 ", &ss)) << ss; - EXPECT_EQ(absl::CivilDay(2015, 6, 7), ss); - EXPECT_TRUE(absl::ParseLenientCivilTime("2015-06-07T10:11:12 ", &ss)) << ss; - EXPECT_EQ(absl::CivilSecond(2015, 6, 7, 10, 11, 12), ss); - EXPECT_TRUE(absl::ParseLenientCivilTime(" 2015-06-07T10:11:12 ", &ss)) << ss; - EXPECT_EQ(absl::CivilSecond(2015, 6, 7, 10, 11, 12), ss); - EXPECT_TRUE(absl::ParseLenientCivilTime("-01-01", &ss)) << ss; - EXPECT_EQ(absl::CivilMonth(-1, 1), ss); - - // Tests some invalid cases - EXPECT_FALSE(absl::ParseLenientCivilTime("01-01-2015", &ss)) << ss; - EXPECT_FALSE(absl::ParseLenientCivilTime("2015-", &ss)) << ss; - EXPECT_FALSE(absl::ParseLenientCivilTime("0xff-01", &ss)) << ss; - EXPECT_FALSE(absl::ParseLenientCivilTime("2015-02-30T04:05:06", &ss)) << ss; - EXPECT_FALSE(absl::ParseLenientCivilTime("2015-02-03T04:05:96", &ss)) << ss; - EXPECT_FALSE(absl::ParseLenientCivilTime("X2015-02-03T04:05:06", &ss)) << ss; - EXPECT_FALSE(absl::ParseLenientCivilTime("2015-02-03T04:05:003", &ss)) << ss; - EXPECT_FALSE(absl::ParseLenientCivilTime("2015 -02-03T04:05:06", &ss)) << ss; - EXPECT_FALSE(absl::ParseLenientCivilTime("2015-02-03-04:05:06", &ss)) << ss; - EXPECT_FALSE(absl::ParseLenientCivilTime("2015:02:03T04-05-06", &ss)) << ss; - EXPECT_FALSE(absl::ParseLenientCivilTime("9223372036854775808", &y)) << y; -} - -TEST(CivilTime, OutputStream) { - absl::CivilSecond cs(2016, 2, 3, 4, 5, 6); - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << absl::CivilYear(cs); - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..2016.................X..", ss.str()); - } - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << absl::CivilMonth(cs); - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..2016-02..............X..", ss.str()); - } - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << absl::CivilDay(cs); - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..2016-02-03...........X..", ss.str()); - } - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << absl::CivilHour(cs); - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..2016-02-03T04........X..", ss.str()); - } - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << absl::CivilMinute(cs); - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..2016-02-03T04:05.....X..", ss.str()); - } - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << absl::CivilSecond(cs); - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..2016-02-03T04:05:06..X..", ss.str()); - } - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << absl::Weekday::wednesday; - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..Wednesday............X..", ss.str()); - } -} - -TEST(CivilTime, Weekday) { - absl::CivilDay d(1970, 1, 1); - EXPECT_EQ(absl::Weekday::thursday, absl::GetWeekday(d)) << d; - - // We used to get this wrong for years < -30. - d = absl::CivilDay(-31, 12, 24); - EXPECT_EQ(absl::Weekday::wednesday, absl::GetWeekday(d)) << d; -} - -TEST(CivilTime, NextPrevWeekday) { - // Jan 1, 1970 was a Thursday. - const absl::CivilDay thursday(1970, 1, 1); - - // Thursday -> Thursday - absl::CivilDay d = absl::NextWeekday(thursday, absl::Weekday::thursday); - EXPECT_EQ(7, d - thursday) << d; - EXPECT_EQ(d - 14, absl::PrevWeekday(thursday, absl::Weekday::thursday)); - - // Thursday -> Friday - d = absl::NextWeekday(thursday, absl::Weekday::friday); - EXPECT_EQ(1, d - thursday) << d; - EXPECT_EQ(d - 7, absl::PrevWeekday(thursday, absl::Weekday::friday)); - - // Thursday -> Saturday - d = absl::NextWeekday(thursday, absl::Weekday::saturday); - EXPECT_EQ(2, d - thursday) << d; - EXPECT_EQ(d - 7, absl::PrevWeekday(thursday, absl::Weekday::saturday)); - - // Thursday -> Sunday - d = absl::NextWeekday(thursday, absl::Weekday::sunday); - EXPECT_EQ(3, d - thursday) << d; - EXPECT_EQ(d - 7, absl::PrevWeekday(thursday, absl::Weekday::sunday)); - - // Thursday -> Monday - d = absl::NextWeekday(thursday, absl::Weekday::monday); - EXPECT_EQ(4, d - thursday) << d; - EXPECT_EQ(d - 7, absl::PrevWeekday(thursday, absl::Weekday::monday)); - - // Thursday -> Tuesday - d = absl::NextWeekday(thursday, absl::Weekday::tuesday); - EXPECT_EQ(5, d - thursday) << d; - EXPECT_EQ(d - 7, absl::PrevWeekday(thursday, absl::Weekday::tuesday)); - - // Thursday -> Wednesday - d = absl::NextWeekday(thursday, absl::Weekday::wednesday); - EXPECT_EQ(6, d - thursday) << d; - EXPECT_EQ(d - 7, absl::PrevWeekday(thursday, absl::Weekday::wednesday)); -} - -// NOTE: Run this with --copt=-ftrapv to detect overflow problems. -TEST(CivilTime, DifferenceWithHugeYear) { - absl::CivilDay d1(9223372036854775807, 1, 1); - absl::CivilDay d2(9223372036854775807, 12, 31); - EXPECT_EQ(364, d2 - d1); - - d1 = absl::CivilDay(-9223372036854775807 - 1, 1, 1); - d2 = absl::CivilDay(-9223372036854775807 - 1, 12, 31); - EXPECT_EQ(365, d2 - d1); - - // Check the limits of the return value at the end of the year range. - d1 = absl::CivilDay(9223372036854775807, 1, 1); - d2 = absl::CivilDay(9198119301927009252, 6, 6); - EXPECT_EQ(9223372036854775807, d1 - d2); - d2 = d2 - 1; - EXPECT_EQ(-9223372036854775807 - 1, d2 - d1); - - // Check the limits of the return value at the start of the year range. - d1 = absl::CivilDay(-9223372036854775807 - 1, 1, 1); - d2 = absl::CivilDay(-9198119301927009254, 7, 28); - EXPECT_EQ(9223372036854775807, d2 - d1); - d2 = d2 + 1; - EXPECT_EQ(-9223372036854775807 - 1, d1 - d2); - - // Check the limits of the return value from either side of year 0. - d1 = absl::CivilDay(-12626367463883278, 9, 3); - d2 = absl::CivilDay(12626367463883277, 3, 28); - EXPECT_EQ(9223372036854775807, d2 - d1); - d2 = d2 + 1; - EXPECT_EQ(-9223372036854775807 - 1, d1 - d2); -} - -// NOTE: Run this with --copt=-ftrapv to detect overflow problems. -TEST(CivilTime, DifferenceNoIntermediateOverflow) { - // The difference up to the minute field would be below the minimum - // int64_t, but the 52 extra seconds brings us back to the minimum. - absl::CivilSecond s1(-292277022657, 1, 27, 8, 29 - 1, 52); - absl::CivilSecond s2(1970, 1, 1, 0, 0 - 1, 0); - EXPECT_EQ(-9223372036854775807 - 1, s1 - s2); - - // The difference up to the minute field would be above the maximum - // int64_t, but the -53 extra seconds brings us back to the maximum. - s1 = absl::CivilSecond(292277026596, 12, 4, 15, 30, 7 - 7); - s2 = absl::CivilSecond(1970, 1, 1, 0, 0, 0 - 7); - EXPECT_EQ(9223372036854775807, s1 - s2); -} - -TEST(CivilTime, NormalizeSimpleOverflow) { - absl::CivilSecond cs; - cs = absl::CivilSecond(2013, 11, 15, 16, 32, 59 + 1); - EXPECT_EQ("2013-11-15T16:33:00", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 15, 16, 59 + 1, 14); - EXPECT_EQ("2013-11-15T17:00:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 15, 23 + 1, 32, 14); - EXPECT_EQ("2013-11-16T00:32:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 30 + 1, 16, 32, 14); - EXPECT_EQ("2013-12-01T16:32:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 12 + 1, 15, 16, 32, 14); - EXPECT_EQ("2014-01-15T16:32:14", absl::FormatCivilTime(cs)); -} - -TEST(CivilTime, NormalizeSimpleUnderflow) { - absl::CivilSecond cs; - cs = absl::CivilSecond(2013, 11, 15, 16, 32, 0 - 1); - EXPECT_EQ("2013-11-15T16:31:59", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 15, 16, 0 - 1, 14); - EXPECT_EQ("2013-11-15T15:59:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 15, 0 - 1, 32, 14); - EXPECT_EQ("2013-11-14T23:32:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 1 - 1, 16, 32, 14); - EXPECT_EQ("2013-10-31T16:32:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 1 - 1, 15, 16, 32, 14); - EXPECT_EQ("2012-12-15T16:32:14", absl::FormatCivilTime(cs)); -} - -TEST(CivilTime, NormalizeMultipleOverflow) { - absl::CivilSecond cs(2013, 12, 31, 23, 59, 59 + 1); - EXPECT_EQ("2014-01-01T00:00:00", absl::FormatCivilTime(cs)); -} - -TEST(CivilTime, NormalizeMultipleUnderflow) { - absl::CivilSecond cs(2014, 1, 1, 0, 0, 0 - 1); - EXPECT_EQ("2013-12-31T23:59:59", absl::FormatCivilTime(cs)); -} - -TEST(CivilTime, NormalizeOverflowLimits) { - absl::CivilSecond cs; - - const int kintmax = std::numeric_limits<int>::max(); - cs = absl::CivilSecond(0, kintmax, kintmax, kintmax, kintmax, kintmax); - EXPECT_EQ("185085715-11-27T12:21:07", absl::FormatCivilTime(cs)); - - const int kintmin = std::numeric_limits<int>::min(); - cs = absl::CivilSecond(0, kintmin, kintmin, kintmin, kintmin, kintmin); - EXPECT_EQ("-185085717-10-31T10:37:52", absl::FormatCivilTime(cs)); -} - -TEST(CivilTime, NormalizeComplexOverflow) { - absl::CivilSecond cs; - cs = absl::CivilSecond(2013, 11, 15, 16, 32, 14 + 123456789); - EXPECT_EQ("2017-10-14T14:05:23", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 15, 16, 32 + 1234567, 14); - EXPECT_EQ("2016-03-22T00:39:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 15, 16 + 123456, 32, 14); - EXPECT_EQ("2027-12-16T16:32:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 15 + 1234, 16, 32, 14); - EXPECT_EQ("2017-04-02T16:32:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11 + 123, 15, 16, 32, 14); - EXPECT_EQ("2024-02-15T16:32:14", absl::FormatCivilTime(cs)); -} - -TEST(CivilTime, NormalizeComplexUnderflow) { - absl::CivilSecond cs; - cs = absl::CivilSecond(1999, 3, 0, 0, 0, 0); // year 400 - EXPECT_EQ("1999-02-28T00:00:00", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 15, 16, 32, 14 - 123456789); - EXPECT_EQ("2009-12-17T18:59:05", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 15, 16, 32 - 1234567, 14); - EXPECT_EQ("2011-07-12T08:25:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 15, 16 - 123456, 32, 14); - EXPECT_EQ("1999-10-16T16:32:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11, 15 - 1234, 16, 32, 14); - EXPECT_EQ("2010-06-30T16:32:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11 - 123, 15, 16, 32, 14); - EXPECT_EQ("2003-08-15T16:32:14", absl::FormatCivilTime(cs)); -} - -TEST(CivilTime, NormalizeMishmash) { - absl::CivilSecond cs; - cs = absl::CivilSecond(2013, 11 - 123, 15 + 1234, 16 - 123456, 32 + 1234567, - 14 - 123456789); - EXPECT_EQ("1991-05-09T03:06:05", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11 + 123, 15 - 1234, 16 + 123456, 32 - 1234567, - 14 + 123456789); - EXPECT_EQ("2036-05-24T05:58:23", absl::FormatCivilTime(cs)); - - cs = absl::CivilSecond(2013, 11, -146097 + 1, 16, 32, 14); - EXPECT_EQ("1613-11-01T16:32:14", absl::FormatCivilTime(cs)); - cs = absl::CivilSecond(2013, 11 + 400 * 12, -146097 + 1, 16, 32, 14); - EXPECT_EQ("2013-11-01T16:32:14", absl::FormatCivilTime(cs)); -} - -// Convert all the days from 1970-1-1 to 1970-1-146097 (aka 2369-12-31) -// and check that they normalize to the expected time. 146097 days span -// the 400-year Gregorian cycle used during normalization. -TEST(CivilTime, NormalizeAllTheDays) { - absl::CivilDay expected(1970, 1, 1); - for (int day = 1; day <= 146097; ++day) { - absl::CivilSecond cs(1970, 1, day, 0, 0, 0); - EXPECT_EQ(expected, cs); - ++expected; - } -} - -TEST(CivilTime, NormalizeWithHugeYear) { - absl::CivilMonth c(9223372036854775807, 1); - EXPECT_EQ("9223372036854775807-01", absl::FormatCivilTime(c)); - c = c - 1; // Causes normalization - EXPECT_EQ("9223372036854775806-12", absl::FormatCivilTime(c)); - - c = absl::CivilMonth(-9223372036854775807 - 1, 1); - EXPECT_EQ("-9223372036854775808-01", absl::FormatCivilTime(c)); - c = c + 12; // Causes normalization - EXPECT_EQ("-9223372036854775807-01", absl::FormatCivilTime(c)); -} - -TEST(CivilTime, LeapYears) { - const absl::CivilSecond s1(2013, 2, 28 + 1, 0, 0, 0); - EXPECT_EQ("2013-03-01T00:00:00", absl::FormatCivilTime(s1)); - - const absl::CivilSecond s2(2012, 2, 28 + 1, 0, 0, 0); - EXPECT_EQ("2012-02-29T00:00:00", absl::FormatCivilTime(s2)); - - const absl::CivilSecond s3(1900, 2, 28 + 1, 0, 0, 0); - EXPECT_EQ("1900-03-01T00:00:00", absl::FormatCivilTime(s3)); - - const struct { - int year; - int days; - struct { - int month; - int day; - } leap_day; // The date of the day after Feb 28. - } kLeapYearTable[]{ - {1900, 365, {3, 1}}, - {1999, 365, {3, 1}}, - {2000, 366, {2, 29}}, // leap year - {2001, 365, {3, 1}}, - {2002, 365, {3, 1}}, - {2003, 365, {3, 1}}, - {2004, 366, {2, 29}}, // leap year - {2005, 365, {3, 1}}, - {2006, 365, {3, 1}}, - {2007, 365, {3, 1}}, - {2008, 366, {2, 29}}, // leap year - {2009, 365, {3, 1}}, - {2100, 365, {3, 1}}, - }; - - for (int i = 0; i < ABSL_ARRAYSIZE(kLeapYearTable); ++i) { - const int y = kLeapYearTable[i].year; - const int m = kLeapYearTable[i].leap_day.month; - const int d = kLeapYearTable[i].leap_day.day; - const int n = kLeapYearTable[i].days; - - // Tests incrementing through the leap day. - const absl::CivilDay feb28(y, 2, 28); - const absl::CivilDay next_day = feb28 + 1; - EXPECT_EQ(m, next_day.month()); - EXPECT_EQ(d, next_day.day()); - - // Tests difference in days of leap years. - const absl::CivilYear year(feb28); - const absl::CivilYear next_year = year + 1; - EXPECT_EQ(n, absl::CivilDay(next_year) - absl::CivilDay(year)); - } -} - -TEST(CivilTime, FirstThursdayInMonth) { - const absl::CivilDay nov1(2014, 11, 1); - const absl::CivilDay thursday = - absl::NextWeekday(nov1 - 1, absl::Weekday::thursday); - EXPECT_EQ("2014-11-06", absl::FormatCivilTime(thursday)); - - // Bonus: Date of Thanksgiving in the United States - // Rule: Fourth Thursday of November - const absl::CivilDay thanksgiving = thursday + 7 * 3; - EXPECT_EQ("2014-11-27", absl::FormatCivilTime(thanksgiving)); -} - -TEST(CivilTime, DocumentationExample) { - absl::CivilSecond second(2015, 6, 28, 1, 2, 3); // 2015-06-28 01:02:03 - absl::CivilMinute minute(second); // 2015-06-28 01:02:00 - absl::CivilDay day(minute); // 2015-06-28 00:00:00 - - second -= 1; // 2015-06-28 01:02:02 - --second; // 2015-06-28 01:02:01 - EXPECT_EQ(minute, second - 1); // Comparison between types - EXPECT_LT(minute, second); - - // int diff = second - minute; // ERROR: Mixed types, won't compile - - absl::CivilDay june_1(2015, 6, 1); // Pass fields to c'tor. - int diff = day - june_1; // Num days between 'day' and June 1 - EXPECT_EQ(27, diff); - - // Fields smaller than alignment are floored to their minimum value. - absl::CivilDay day_floor(2015, 1, 2, 9, 9, 9); - EXPECT_EQ(0, day_floor.hour()); // 09:09:09 is floored - EXPECT_EQ(absl::CivilDay(2015, 1, 2), day_floor); - - // Unspecified fields default to their minium value - absl::CivilDay day_default(2015); // Defaults to Jan 1 - EXPECT_EQ(absl::CivilDay(2015, 1, 1), day_default); - - // Iterates all the days of June. - absl::CivilMonth june(day); // CivilDay -> CivilMonth - absl::CivilMonth july = june + 1; - for (absl::CivilDay day = june_1; day < july; ++day) { - // ... - } -} - -} // namespace diff --git a/third_party/abseil_cpp/absl/time/clock.cc b/third_party/abseil_cpp/absl/time/clock.cc deleted file mode 100644 index e5c423c7e4..0000000000 --- a/third_party/abseil_cpp/absl/time/clock.cc +++ /dev/null @@ -1,569 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/clock.h" - -#include "absl/base/attributes.h" - -#ifdef _WIN32 -#include <windows.h> -#endif - -#include <algorithm> -#include <atomic> -#include <cerrno> -#include <cstdint> -#include <ctime> -#include <limits> - -#include "absl/base/internal/spinlock.h" -#include "absl/base/internal/unscaledcycleclock.h" -#include "absl/base/macros.h" -#include "absl/base/port.h" -#include "absl/base/thread_annotations.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -Time Now() { - // TODO(bww): Get a timespec instead so we don't have to divide. - int64_t n = absl::GetCurrentTimeNanos(); - if (n >= 0) { - return time_internal::FromUnixDuration( - time_internal::MakeDuration(n / 1000000000, n % 1000000000 * 4)); - } - return time_internal::FromUnixDuration(absl::Nanoseconds(n)); -} -ABSL_NAMESPACE_END -} // namespace absl - -// Decide if we should use the fast GetCurrentTimeNanos() algorithm -// based on the cyclecounter, otherwise just get the time directly -// from the OS on every call. This can be chosen at compile-time via -// -DABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS=[0|1] -#ifndef ABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS -#if ABSL_USE_UNSCALED_CYCLECLOCK -#define ABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS 1 -#else -#define ABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS 0 -#endif -#endif - -#if defined(__APPLE__) || defined(_WIN32) -#include "absl/time/internal/get_current_time_chrono.inc" -#else -#include "absl/time/internal/get_current_time_posix.inc" -#endif - -// Allows override by test. -#ifndef GET_CURRENT_TIME_NANOS_FROM_SYSTEM -#define GET_CURRENT_TIME_NANOS_FROM_SYSTEM() \ - ::absl::time_internal::GetCurrentTimeNanosFromSystem() -#endif - -#if !ABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS -namespace absl { -ABSL_NAMESPACE_BEGIN -int64_t GetCurrentTimeNanos() { - return GET_CURRENT_TIME_NANOS_FROM_SYSTEM(); -} -ABSL_NAMESPACE_END -} // namespace absl -#else // Use the cyclecounter-based implementation below. - -// Allows override by test. -#ifndef GET_CURRENT_TIME_NANOS_CYCLECLOCK_NOW -#define GET_CURRENT_TIME_NANOS_CYCLECLOCK_NOW() \ - ::absl::time_internal::UnscaledCycleClockWrapperForGetCurrentTime::Now() -#endif - -// The following counters are used only by the test code. -static int64_t stats_initializations; -static int64_t stats_reinitializations; -static int64_t stats_calibrations; -static int64_t stats_slow_paths; -static int64_t stats_fast_slow_paths; - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -// This is a friend wrapper around UnscaledCycleClock::Now() -// (needed to access UnscaledCycleClock). -class UnscaledCycleClockWrapperForGetCurrentTime { - public: - static int64_t Now() { return base_internal::UnscaledCycleClock::Now(); } -}; -} // namespace time_internal - -// uint64_t is used in this module to provide an extra bit in multiplications - -// Return the time in ns as told by the kernel interface. Place in *cycleclock -// the value of the cycleclock at about the time of the syscall. -// This call represents the time base that this module synchronizes to. -// Ensures that *cycleclock does not step back by up to (1 << 16) from -// last_cycleclock, to discard small backward counter steps. (Larger steps are -// assumed to be complete resyncs, which shouldn't happen. If they do, a full -// reinitialization of the outer algorithm should occur.) -static int64_t GetCurrentTimeNanosFromKernel(uint64_t last_cycleclock, - uint64_t *cycleclock) { - // We try to read clock values at about the same time as the kernel clock. - // This value gets adjusted up or down as estimate of how long that should - // take, so we can reject attempts that take unusually long. - static std::atomic<uint64_t> approx_syscall_time_in_cycles{10 * 1000}; - - uint64_t local_approx_syscall_time_in_cycles = // local copy - approx_syscall_time_in_cycles.load(std::memory_order_relaxed); - - int64_t current_time_nanos_from_system; - uint64_t before_cycles; - uint64_t after_cycles; - uint64_t elapsed_cycles; - int loops = 0; - do { - before_cycles = GET_CURRENT_TIME_NANOS_CYCLECLOCK_NOW(); - current_time_nanos_from_system = GET_CURRENT_TIME_NANOS_FROM_SYSTEM(); - after_cycles = GET_CURRENT_TIME_NANOS_CYCLECLOCK_NOW(); - // elapsed_cycles is unsigned, so is large on overflow - elapsed_cycles = after_cycles - before_cycles; - if (elapsed_cycles >= local_approx_syscall_time_in_cycles && - ++loops == 20) { // clock changed frequencies? Back off. - loops = 0; - if (local_approx_syscall_time_in_cycles < 1000 * 1000) { - local_approx_syscall_time_in_cycles = - (local_approx_syscall_time_in_cycles + 1) << 1; - } - approx_syscall_time_in_cycles.store( - local_approx_syscall_time_in_cycles, - std::memory_order_relaxed); - } - } while (elapsed_cycles >= local_approx_syscall_time_in_cycles || - last_cycleclock - after_cycles < (static_cast<uint64_t>(1) << 16)); - - // Number of times in a row we've seen a kernel time call take substantially - // less than approx_syscall_time_in_cycles. - static std::atomic<uint32_t> seen_smaller{ 0 }; - - // Adjust approx_syscall_time_in_cycles to be within a factor of 2 - // of the typical time to execute one iteration of the loop above. - if ((local_approx_syscall_time_in_cycles >> 1) < elapsed_cycles) { - // measured time is no smaller than half current approximation - seen_smaller.store(0, std::memory_order_relaxed); - } else if (seen_smaller.fetch_add(1, std::memory_order_relaxed) >= 3) { - // smaller delays several times in a row; reduce approximation by 12.5% - const uint64_t new_approximation = - local_approx_syscall_time_in_cycles - - (local_approx_syscall_time_in_cycles >> 3); - approx_syscall_time_in_cycles.store(new_approximation, - std::memory_order_relaxed); - seen_smaller.store(0, std::memory_order_relaxed); - } - - *cycleclock = after_cycles; - return current_time_nanos_from_system; -} - - -// --------------------------------------------------------------------- -// An implementation of reader-write locks that use no atomic ops in the read -// case. This is a generalization of Lamport's method for reading a multiword -// clock. Increment a word on each write acquisition, using the low-order bit -// as a spinlock; the word is the high word of the "clock". Readers read the -// high word, then all other data, then the high word again, and repeat the -// read if the reads of the high words yields different answers, or an odd -// value (either case suggests possible interference from a writer). -// Here we use a spinlock to ensure only one writer at a time, rather than -// spinning on the bottom bit of the word to benefit from SpinLock -// spin-delay tuning. - -// Acquire seqlock (*seq) and return the value to be written to unlock. -static inline uint64_t SeqAcquire(std::atomic<uint64_t> *seq) { - uint64_t x = seq->fetch_add(1, std::memory_order_relaxed); - - // We put a release fence between update to *seq and writes to shared data. - // Thus all stores to shared data are effectively release operations and - // update to *seq above cannot be re-ordered past any of them. Note that - // this barrier is not for the fetch_add above. A release barrier for the - // fetch_add would be before it, not after. - std::atomic_thread_fence(std::memory_order_release); - - return x + 2; // original word plus 2 -} - -// Release seqlock (*seq) by writing x to it---a value previously returned by -// SeqAcquire. -static inline void SeqRelease(std::atomic<uint64_t> *seq, uint64_t x) { - // The unlock store to *seq must have release ordering so that all - // updates to shared data must finish before this store. - seq->store(x, std::memory_order_release); // release lock for readers -} - -// --------------------------------------------------------------------- - -// "nsscaled" is unit of time equal to a (2**kScale)th of a nanosecond. -enum { kScale = 30 }; - -// The minimum interval between samples of the time base. -// We pick enough time to amortize the cost of the sample, -// to get a reasonably accurate cycle counter rate reading, -// and not so much that calculations will overflow 64-bits. -static const uint64_t kMinNSBetweenSamples = 2000 << 20; - -// We require that kMinNSBetweenSamples shifted by kScale -// have at least a bit left over for 64-bit calculations. -static_assert(((kMinNSBetweenSamples << (kScale + 1)) >> (kScale + 1)) == - kMinNSBetweenSamples, - "cannot represent kMaxBetweenSamplesNSScaled"); - -// A reader-writer lock protecting the static locations below. -// See SeqAcquire() and SeqRelease() above. -ABSL_CONST_INIT static absl::base_internal::SpinLock lock( - absl::kConstInit, base_internal::SCHEDULE_KERNEL_ONLY); -ABSL_CONST_INIT static std::atomic<uint64_t> seq(0); - -// data from a sample of the kernel's time value -struct TimeSampleAtomic { - std::atomic<uint64_t> raw_ns; // raw kernel time - std::atomic<uint64_t> base_ns; // our estimate of time - std::atomic<uint64_t> base_cycles; // cycle counter reading - std::atomic<uint64_t> nsscaled_per_cycle; // cycle period - // cycles before we'll sample again (a scaled reciprocal of the period, - // to avoid a division on the fast path). - std::atomic<uint64_t> min_cycles_per_sample; -}; -// Same again, but with non-atomic types -struct TimeSample { - uint64_t raw_ns; // raw kernel time - uint64_t base_ns; // our estimate of time - uint64_t base_cycles; // cycle counter reading - uint64_t nsscaled_per_cycle; // cycle period - uint64_t min_cycles_per_sample; // approx cycles before next sample -}; - -static struct TimeSampleAtomic last_sample; // the last sample; under seq - -static int64_t GetCurrentTimeNanosSlowPath() ABSL_ATTRIBUTE_COLD; - -// Read the contents of *atomic into *sample. -// Each field is read atomically, but to maintain atomicity between fields, -// the access must be done under a lock. -static void ReadTimeSampleAtomic(const struct TimeSampleAtomic *atomic, - struct TimeSample *sample) { - sample->base_ns = atomic->base_ns.load(std::memory_order_relaxed); - sample->base_cycles = atomic->base_cycles.load(std::memory_order_relaxed); - sample->nsscaled_per_cycle = - atomic->nsscaled_per_cycle.load(std::memory_order_relaxed); - sample->min_cycles_per_sample = - atomic->min_cycles_per_sample.load(std::memory_order_relaxed); - sample->raw_ns = atomic->raw_ns.load(std::memory_order_relaxed); -} - -// Public routine. -// Algorithm: We wish to compute real time from a cycle counter. In normal -// operation, we construct a piecewise linear approximation to the kernel time -// source, using the cycle counter value. The start of each line segment is at -// the same point as the end of the last, but may have a different slope (that -// is, a different idea of the cycle counter frequency). Every couple of -// seconds, the kernel time source is sampled and compared with the current -// approximation. A new slope is chosen that, if followed for another couple -// of seconds, will correct the error at the current position. The information -// for a sample is in the "last_sample" struct. The linear approximation is -// estimated_time = last_sample.base_ns + -// last_sample.ns_per_cycle * (counter_reading - last_sample.base_cycles) -// (ns_per_cycle is actually stored in different units and scaled, to avoid -// overflow). The base_ns of the next linear approximation is the -// estimated_time using the last approximation; the base_cycles is the cycle -// counter value at that time; the ns_per_cycle is the number of ns per cycle -// measured since the last sample, but adjusted so that most of the difference -// between the estimated_time and the kernel time will be corrected by the -// estimated time to the next sample. In normal operation, this algorithm -// relies on: -// - the cycle counter and kernel time rates not changing a lot in a few -// seconds. -// - the client calling into the code often compared to a couple of seconds, so -// the time to the next correction can be estimated. -// Any time ns_per_cycle is not known, a major error is detected, or the -// assumption about frequent calls is violated, the implementation returns the -// kernel time. It records sufficient data that a linear approximation can -// resume a little later. - -int64_t GetCurrentTimeNanos() { - // read the data from the "last_sample" struct (but don't need raw_ns yet) - // The reads of "seq" and test of the values emulate a reader lock. - uint64_t base_ns; - uint64_t base_cycles; - uint64_t nsscaled_per_cycle; - uint64_t min_cycles_per_sample; - uint64_t seq_read0; - uint64_t seq_read1; - - // If we have enough information to interpolate, the value returned will be - // derived from this cycleclock-derived time estimate. On some platforms - // (POWER) the function to retrieve this value has enough complexity to - // contribute to register pressure - reading it early before initializing - // the other pieces of the calculation minimizes spill/restore instructions, - // minimizing icache cost. - uint64_t now_cycles = GET_CURRENT_TIME_NANOS_CYCLECLOCK_NOW(); - - // Acquire pairs with the barrier in SeqRelease - if this load sees that - // store, the shared-data reads necessarily see that SeqRelease's updates - // to the same shared data. - seq_read0 = seq.load(std::memory_order_acquire); - - base_ns = last_sample.base_ns.load(std::memory_order_relaxed); - base_cycles = last_sample.base_cycles.load(std::memory_order_relaxed); - nsscaled_per_cycle = - last_sample.nsscaled_per_cycle.load(std::memory_order_relaxed); - min_cycles_per_sample = - last_sample.min_cycles_per_sample.load(std::memory_order_relaxed); - - // This acquire fence pairs with the release fence in SeqAcquire. Since it - // is sequenced between reads of shared data and seq_read1, the reads of - // shared data are effectively acquiring. - std::atomic_thread_fence(std::memory_order_acquire); - - // The shared-data reads are effectively acquire ordered, and the - // shared-data writes are effectively release ordered. Therefore if our - // shared-data reads see any of a particular update's shared-data writes, - // seq_read1 is guaranteed to see that update's SeqAcquire. - seq_read1 = seq.load(std::memory_order_relaxed); - - // Fast path. Return if min_cycles_per_sample has not yet elapsed since the - // last sample, and we read a consistent sample. The fast path activates - // only when min_cycles_per_sample is non-zero, which happens when we get an - // estimate for the cycle time. The predicate will fail if now_cycles < - // base_cycles, or if some other thread is in the slow path. - // - // Since we now read now_cycles before base_ns, it is possible for now_cycles - // to be less than base_cycles (if we were interrupted between those loads and - // last_sample was updated). This is harmless, because delta_cycles will wrap - // and report a time much much bigger than min_cycles_per_sample. In that case - // we will take the slow path. - uint64_t delta_cycles = now_cycles - base_cycles; - if (seq_read0 == seq_read1 && (seq_read0 & 1) == 0 && - delta_cycles < min_cycles_per_sample) { - return base_ns + ((delta_cycles * nsscaled_per_cycle) >> kScale); - } - return GetCurrentTimeNanosSlowPath(); -} - -// Return (a << kScale)/b. -// Zero is returned if b==0. Scaling is performed internally to -// preserve precision without overflow. -static uint64_t SafeDivideAndScale(uint64_t a, uint64_t b) { - // Find maximum safe_shift so that - // 0 <= safe_shift <= kScale and (a << safe_shift) does not overflow. - int safe_shift = kScale; - while (((a << safe_shift) >> safe_shift) != a) { - safe_shift--; - } - uint64_t scaled_b = b >> (kScale - safe_shift); - uint64_t quotient = 0; - if (scaled_b != 0) { - quotient = (a << safe_shift) / scaled_b; - } - return quotient; -} - -static uint64_t UpdateLastSample( - uint64_t now_cycles, uint64_t now_ns, uint64_t delta_cycles, - const struct TimeSample *sample) ABSL_ATTRIBUTE_COLD; - -// The slow path of GetCurrentTimeNanos(). This is taken while gathering -// initial samples, when enough time has elapsed since the last sample, and if -// any other thread is writing to last_sample. -// -// Manually mark this 'noinline' to minimize stack frame size of the fast -// path. Without this, sometimes a compiler may inline this big block of code -// into the fast path. That causes lots of register spills and reloads that -// are unnecessary unless the slow path is taken. -// -// TODO(absl-team): Remove this attribute when our compiler is smart enough -// to do the right thing. -ABSL_ATTRIBUTE_NOINLINE -static int64_t GetCurrentTimeNanosSlowPath() ABSL_LOCKS_EXCLUDED(lock) { - // Serialize access to slow-path. Fast-path readers are not blocked yet, and - // code below must not modify last_sample until the seqlock is acquired. - lock.Lock(); - - // Sample the kernel time base. This is the definition of - // "now" if we take the slow path. - static uint64_t last_now_cycles; // protected by lock - uint64_t now_cycles; - uint64_t now_ns = GetCurrentTimeNanosFromKernel(last_now_cycles, &now_cycles); - last_now_cycles = now_cycles; - - uint64_t estimated_base_ns; - - // ---------- - // Read the "last_sample" values again; this time holding the write lock. - struct TimeSample sample; - ReadTimeSampleAtomic(&last_sample, &sample); - - // ---------- - // Try running the fast path again; another thread may have updated the - // sample between our run of the fast path and the sample we just read. - uint64_t delta_cycles = now_cycles - sample.base_cycles; - if (delta_cycles < sample.min_cycles_per_sample) { - // Another thread updated the sample. This path does not take the seqlock - // so that blocked readers can make progress without blocking new readers. - estimated_base_ns = sample.base_ns + - ((delta_cycles * sample.nsscaled_per_cycle) >> kScale); - stats_fast_slow_paths++; - } else { - estimated_base_ns = - UpdateLastSample(now_cycles, now_ns, delta_cycles, &sample); - } - - lock.Unlock(); - - return estimated_base_ns; -} - -// Main part of the algorithm. Locks out readers, updates the approximation -// using the new sample from the kernel, and stores the result in last_sample -// for readers. Returns the new estimated time. -static uint64_t UpdateLastSample(uint64_t now_cycles, uint64_t now_ns, - uint64_t delta_cycles, - const struct TimeSample *sample) - ABSL_EXCLUSIVE_LOCKS_REQUIRED(lock) { - uint64_t estimated_base_ns = now_ns; - uint64_t lock_value = SeqAcquire(&seq); // acquire seqlock to block readers - - // The 5s in the next if-statement limits the time for which we will trust - // the cycle counter and our last sample to give a reasonable result. - // Errors in the rate of the source clock can be multiplied by the ratio - // between this limit and kMinNSBetweenSamples. - if (sample->raw_ns == 0 || // no recent sample, or clock went backwards - sample->raw_ns + static_cast<uint64_t>(5) * 1000 * 1000 * 1000 < now_ns || - now_ns < sample->raw_ns || now_cycles < sample->base_cycles) { - // record this sample, and forget any previously known slope. - last_sample.raw_ns.store(now_ns, std::memory_order_relaxed); - last_sample.base_ns.store(estimated_base_ns, std::memory_order_relaxed); - last_sample.base_cycles.store(now_cycles, std::memory_order_relaxed); - last_sample.nsscaled_per_cycle.store(0, std::memory_order_relaxed); - last_sample.min_cycles_per_sample.store(0, std::memory_order_relaxed); - stats_initializations++; - } else if (sample->raw_ns + 500 * 1000 * 1000 < now_ns && - sample->base_cycles + 50 < now_cycles) { - // Enough time has passed to compute the cycle time. - if (sample->nsscaled_per_cycle != 0) { // Have a cycle time estimate. - // Compute time from counter reading, but avoiding overflow - // delta_cycles may be larger than on the fast path. - uint64_t estimated_scaled_ns; - int s = -1; - do { - s++; - estimated_scaled_ns = (delta_cycles >> s) * sample->nsscaled_per_cycle; - } while (estimated_scaled_ns / sample->nsscaled_per_cycle != - (delta_cycles >> s)); - estimated_base_ns = sample->base_ns + - (estimated_scaled_ns >> (kScale - s)); - } - - // Compute the assumed cycle time kMinNSBetweenSamples ns into the future - // assuming the cycle counter rate stays the same as the last interval. - uint64_t ns = now_ns - sample->raw_ns; - uint64_t measured_nsscaled_per_cycle = SafeDivideAndScale(ns, delta_cycles); - - uint64_t assumed_next_sample_delta_cycles = - SafeDivideAndScale(kMinNSBetweenSamples, measured_nsscaled_per_cycle); - - int64_t diff_ns = now_ns - estimated_base_ns; // estimate low by this much - - // We want to set nsscaled_per_cycle so that our estimate of the ns time - // at the assumed cycle time is the assumed ns time. - // That is, we want to set nsscaled_per_cycle so: - // kMinNSBetweenSamples + diff_ns == - // (assumed_next_sample_delta_cycles * nsscaled_per_cycle) >> kScale - // But we wish to damp oscillations, so instead correct only most - // of our current error, by solving: - // kMinNSBetweenSamples + diff_ns - (diff_ns / 16) == - // (assumed_next_sample_delta_cycles * nsscaled_per_cycle) >> kScale - ns = kMinNSBetweenSamples + diff_ns - (diff_ns / 16); - uint64_t new_nsscaled_per_cycle = - SafeDivideAndScale(ns, assumed_next_sample_delta_cycles); - if (new_nsscaled_per_cycle != 0 && - diff_ns < 100 * 1000 * 1000 && -diff_ns < 100 * 1000 * 1000) { - // record the cycle time measurement - last_sample.nsscaled_per_cycle.store( - new_nsscaled_per_cycle, std::memory_order_relaxed); - uint64_t new_min_cycles_per_sample = - SafeDivideAndScale(kMinNSBetweenSamples, new_nsscaled_per_cycle); - last_sample.min_cycles_per_sample.store( - new_min_cycles_per_sample, std::memory_order_relaxed); - stats_calibrations++; - } else { // something went wrong; forget the slope - last_sample.nsscaled_per_cycle.store(0, std::memory_order_relaxed); - last_sample.min_cycles_per_sample.store(0, std::memory_order_relaxed); - estimated_base_ns = now_ns; - stats_reinitializations++; - } - last_sample.raw_ns.store(now_ns, std::memory_order_relaxed); - last_sample.base_ns.store(estimated_base_ns, std::memory_order_relaxed); - last_sample.base_cycles.store(now_cycles, std::memory_order_relaxed); - } else { - // have a sample, but no slope; waiting for enough time for a calibration - stats_slow_paths++; - } - - SeqRelease(&seq, lock_value); // release the readers - - return estimated_base_ns; -} -ABSL_NAMESPACE_END -} // namespace absl -#endif // ABSL_USE_CYCLECLOCK_FOR_GET_CURRENT_TIME_NANOS - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace { - -// Returns the maximum duration that SleepOnce() can sleep for. -constexpr absl::Duration MaxSleep() { -#ifdef _WIN32 - // Windows Sleep() takes unsigned long argument in milliseconds. - return absl::Milliseconds( - std::numeric_limits<unsigned long>::max()); // NOLINT(runtime/int) -#else - return absl::Seconds(std::numeric_limits<time_t>::max()); -#endif -} - -// Sleeps for the given duration. -// REQUIRES: to_sleep <= MaxSleep(). -void SleepOnce(absl::Duration to_sleep) { -#ifdef _WIN32 - Sleep(to_sleep / absl::Milliseconds(1)); -#else - struct timespec sleep_time = absl::ToTimespec(to_sleep); - while (nanosleep(&sleep_time, &sleep_time) != 0 && errno == EINTR) { - // Ignore signals and wait for the full interval to elapse. - } -#endif -} - -} // namespace -ABSL_NAMESPACE_END -} // namespace absl - -extern "C" { - -ABSL_ATTRIBUTE_WEAK void AbslInternalSleepFor(absl::Duration duration) { - while (duration > absl::ZeroDuration()) { - absl::Duration to_sleep = std::min(duration, absl::MaxSleep()); - absl::SleepOnce(to_sleep); - duration -= to_sleep; - } -} - -} // extern "C" diff --git a/third_party/abseil_cpp/absl/time/clock.h b/third_party/abseil_cpp/absl/time/clock.h deleted file mode 100644 index 27764a922d..0000000000 --- a/third_party/abseil_cpp/absl/time/clock.h +++ /dev/null @@ -1,74 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: clock.h -// ----------------------------------------------------------------------------- -// -// This header file contains utility functions for working with the system-wide -// realtime clock. For descriptions of the main time abstractions used within -// this header file, consult the time.h header file. -#ifndef ABSL_TIME_CLOCK_H_ -#define ABSL_TIME_CLOCK_H_ - -#include "absl/base/macros.h" -#include "absl/time/time.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -// Now() -// -// Returns the current time, expressed as an `absl::Time` absolute time value. -absl::Time Now(); - -// GetCurrentTimeNanos() -// -// Returns the current time, expressed as a count of nanoseconds since the Unix -// Epoch (https://en.wikipedia.org/wiki/Unix_time). Prefer `absl::Now()` instead -// for all but the most performance-sensitive cases (i.e. when you are calling -// this function hundreds of thousands of times per second). -int64_t GetCurrentTimeNanos(); - -// SleepFor() -// -// Sleeps for the specified duration, expressed as an `absl::Duration`. -// -// Notes: -// * Signal interruptions will not reduce the sleep duration. -// * Returns immediately when passed a nonpositive duration. -void SleepFor(absl::Duration duration); - -ABSL_NAMESPACE_END -} // namespace absl - -// ----------------------------------------------------------------------------- -// Implementation Details -// ----------------------------------------------------------------------------- - -// In some build configurations we pass --detect-odr-violations to the -// gold linker. This causes it to flag weak symbol overrides as ODR -// violations. Because ODR only applies to C++ and not C, -// --detect-odr-violations ignores symbols not mangled with C++ names. -// By changing our extension points to be extern "C", we dodge this -// check. -extern "C" { -void AbslInternalSleepFor(absl::Duration duration); -} // extern "C" - -inline void absl::SleepFor(absl::Duration duration) { - AbslInternalSleepFor(duration); -} - -#endif // ABSL_TIME_CLOCK_H_ diff --git a/third_party/abseil_cpp/absl/time/clock_benchmark.cc b/third_party/abseil_cpp/absl/time/clock_benchmark.cc deleted file mode 100644 index c5c795ecbd..0000000000 --- a/third_party/abseil_cpp/absl/time/clock_benchmark.cc +++ /dev/null @@ -1,74 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/clock.h" - -#if !defined(_WIN32) -#include <sys/time.h> -#else -#include <winsock2.h> -#endif // _WIN32 -#include <cstdio> - -#include "absl/base/internal/cycleclock.h" -#include "benchmark/benchmark.h" - -namespace { - -void BM_Clock_Now_AbslTime(benchmark::State& state) { - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Now()); - } -} -BENCHMARK(BM_Clock_Now_AbslTime); - -void BM_Clock_Now_GetCurrentTimeNanos(benchmark::State& state) { - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::GetCurrentTimeNanos()); - } -} -BENCHMARK(BM_Clock_Now_GetCurrentTimeNanos); - -void BM_Clock_Now_AbslTime_ToUnixNanos(benchmark::State& state) { - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::ToUnixNanos(absl::Now())); - } -} -BENCHMARK(BM_Clock_Now_AbslTime_ToUnixNanos); - -void BM_Clock_Now_CycleClock(benchmark::State& state) { - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::base_internal::CycleClock::Now()); - } -} -BENCHMARK(BM_Clock_Now_CycleClock); - -#if !defined(_WIN32) -static void BM_Clock_Now_gettimeofday(benchmark::State& state) { - struct timeval tv; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(gettimeofday(&tv, nullptr)); - } -} -BENCHMARK(BM_Clock_Now_gettimeofday); - -static void BM_Clock_Now_clock_gettime(benchmark::State& state) { - struct timespec ts; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(clock_gettime(CLOCK_REALTIME, &ts)); - } -} -BENCHMARK(BM_Clock_Now_clock_gettime); -#endif // _WIN32 - -} // namespace diff --git a/third_party/abseil_cpp/absl/time/clock_test.cc b/third_party/abseil_cpp/absl/time/clock_test.cc deleted file mode 100644 index 4bcfc6bc72..0000000000 --- a/third_party/abseil_cpp/absl/time/clock_test.cc +++ /dev/null @@ -1,118 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/clock.h" - -#include "absl/base/config.h" -#if defined(ABSL_HAVE_ALARM) -#include <signal.h> -#include <unistd.h> -#elif defined(__linux__) || defined(__APPLE__) -#error all known Linux and Apple targets have alarm -#endif - -#include "gtest/gtest.h" -#include "absl/time/time.h" - -namespace { - -TEST(Time, Now) { - const absl::Time before = absl::FromUnixNanos(absl::GetCurrentTimeNanos()); - const absl::Time now = absl::Now(); - const absl::Time after = absl::FromUnixNanos(absl::GetCurrentTimeNanos()); - EXPECT_GE(now, before); - EXPECT_GE(after, now); -} - -enum class AlarmPolicy { kWithoutAlarm, kWithAlarm }; - -#if defined(ABSL_HAVE_ALARM) -bool alarm_handler_invoked = false; - -void AlarmHandler(int signo) { - ASSERT_EQ(signo, SIGALRM); - alarm_handler_invoked = true; -} -#endif - -// Does SleepFor(d) take between lower_bound and upper_bound at least -// once between now and (now + timeout)? If requested (and supported), -// add an alarm for the middle of the sleep period and expect it to fire. -bool SleepForBounded(absl::Duration d, absl::Duration lower_bound, - absl::Duration upper_bound, absl::Duration timeout, - AlarmPolicy alarm_policy, int* attempts) { - const absl::Time deadline = absl::Now() + timeout; - while (absl::Now() < deadline) { -#if defined(ABSL_HAVE_ALARM) - sig_t old_alarm = SIG_DFL; - if (alarm_policy == AlarmPolicy::kWithAlarm) { - alarm_handler_invoked = false; - old_alarm = signal(SIGALRM, AlarmHandler); - alarm(absl::ToInt64Seconds(d / 2)); - } -#else - EXPECT_EQ(alarm_policy, AlarmPolicy::kWithoutAlarm); -#endif - ++*attempts; - absl::Time start = absl::Now(); - absl::SleepFor(d); - absl::Duration actual = absl::Now() - start; -#if defined(ABSL_HAVE_ALARM) - if (alarm_policy == AlarmPolicy::kWithAlarm) { - signal(SIGALRM, old_alarm); - if (!alarm_handler_invoked) continue; - } -#endif - if (lower_bound <= actual && actual <= upper_bound) { - return true; // yes, the SleepFor() was correctly bounded - } - } - return false; -} - -testing::AssertionResult AssertSleepForBounded(absl::Duration d, - absl::Duration early, - absl::Duration late, - absl::Duration timeout, - AlarmPolicy alarm_policy) { - const absl::Duration lower_bound = d - early; - const absl::Duration upper_bound = d + late; - int attempts = 0; - if (SleepForBounded(d, lower_bound, upper_bound, timeout, alarm_policy, - &attempts)) { - return testing::AssertionSuccess(); - } - return testing::AssertionFailure() - << "SleepFor(" << d << ") did not return within [" << lower_bound - << ":" << upper_bound << "] in " << attempts << " attempt" - << (attempts == 1 ? "" : "s") << " over " << timeout - << (alarm_policy == AlarmPolicy::kWithAlarm ? " with" : " without") - << " an alarm"; -} - -// Tests that SleepFor() returns neither too early nor too late. -TEST(SleepFor, Bounded) { - const absl::Duration d = absl::Milliseconds(2500); - const absl::Duration early = absl::Milliseconds(100); - const absl::Duration late = absl::Milliseconds(300); - const absl::Duration timeout = 48 * d; - EXPECT_TRUE(AssertSleepForBounded(d, early, late, timeout, - AlarmPolicy::kWithoutAlarm)); -#if defined(ABSL_HAVE_ALARM) - EXPECT_TRUE(AssertSleepForBounded(d, early, late, timeout, - AlarmPolicy::kWithAlarm)); -#endif -} - -} // namespace diff --git a/third_party/abseil_cpp/absl/time/duration.cc b/third_party/abseil_cpp/absl/time/duration.cc deleted file mode 100644 index d0f1aadbf2..0000000000 --- a/third_party/abseil_cpp/absl/time/duration.cc +++ /dev/null @@ -1,951 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// The implementation of the absl::Duration class, which is declared in -// //absl/time.h. This class behaves like a numeric type; it has no public -// methods and is used only through the operators defined here. -// -// Implementation notes: -// -// An absl::Duration is represented as -// -// rep_hi_ : (int64_t) Whole seconds -// rep_lo_ : (uint32_t) Fractions of a second -// -// The seconds value (rep_hi_) may be positive or negative as appropriate. -// The fractional seconds (rep_lo_) is always a positive offset from rep_hi_. -// The API for Duration guarantees at least nanosecond resolution, which -// means rep_lo_ could have a max value of 1B - 1 if it stored nanoseconds. -// However, to utilize more of the available 32 bits of space in rep_lo_, -// we instead store quarters of a nanosecond in rep_lo_ resulting in a max -// value of 4B - 1. This allows us to correctly handle calculations like -// 0.5 nanos + 0.5 nanos = 1 nano. The following example shows the actual -// Duration rep using quarters of a nanosecond. -// -// 2.5 sec = {rep_hi_=2, rep_lo_=2000000000} // lo = 4 * 500000000 -// -2.5 sec = {rep_hi_=-3, rep_lo_=2000000000} -// -// Infinite durations are represented as Durations with the rep_lo_ field set -// to all 1s. -// -// +InfiniteDuration: -// rep_hi_ : kint64max -// rep_lo_ : ~0U -// -// -InfiniteDuration: -// rep_hi_ : kint64min -// rep_lo_ : ~0U -// -// Arithmetic overflows/underflows to +/- infinity and saturates. - -#if defined(_MSC_VER) -#include <winsock2.h> // for timeval -#endif - -#include <algorithm> -#include <cassert> -#include <cctype> -#include <cerrno> -#include <cmath> -#include <cstdint> -#include <cstdlib> -#include <cstring> -#include <ctime> -#include <functional> -#include <limits> -#include <string> - -#include "absl/base/casts.h" -#include "absl/base/macros.h" -#include "absl/numeric/int128.h" -#include "absl/strings/strip.h" -#include "absl/time/time.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -namespace { - -using time_internal::kTicksPerNanosecond; -using time_internal::kTicksPerSecond; - -constexpr int64_t kint64max = std::numeric_limits<int64_t>::max(); -constexpr int64_t kint64min = std::numeric_limits<int64_t>::min(); - -// Can't use std::isinfinite() because it doesn't exist on windows. -inline bool IsFinite(double d) { - if (std::isnan(d)) return false; - return d != std::numeric_limits<double>::infinity() && - d != -std::numeric_limits<double>::infinity(); -} - -inline bool IsValidDivisor(double d) { - if (std::isnan(d)) return false; - return d != 0.0; -} - -// Can't use std::round() because it is only available in C++11. -// Note that we ignore the possibility of floating-point over/underflow. -template <typename Double> -inline double Round(Double d) { - return d < 0 ? std::ceil(d - 0.5) : std::floor(d + 0.5); -} - -// *sec may be positive or negative. *ticks must be in the range -// -kTicksPerSecond < *ticks < kTicksPerSecond. If *ticks is negative it -// will be normalized to a positive value by adjusting *sec accordingly. -inline void NormalizeTicks(int64_t* sec, int64_t* ticks) { - if (*ticks < 0) { - --*sec; - *ticks += kTicksPerSecond; - } -} - -// Makes a uint128 from the absolute value of the given scalar. -inline uint128 MakeU128(int64_t a) { - uint128 u128 = 0; - if (a < 0) { - ++u128; - ++a; // Makes it safe to negate 'a' - a = -a; - } - u128 += static_cast<uint64_t>(a); - return u128; -} - -// Makes a uint128 count of ticks out of the absolute value of the Duration. -inline uint128 MakeU128Ticks(Duration d) { - int64_t rep_hi = time_internal::GetRepHi(d); - uint32_t rep_lo = time_internal::GetRepLo(d); - if (rep_hi < 0) { - ++rep_hi; - rep_hi = -rep_hi; - rep_lo = kTicksPerSecond - rep_lo; - } - uint128 u128 = static_cast<uint64_t>(rep_hi); - u128 *= static_cast<uint64_t>(kTicksPerSecond); - u128 += rep_lo; - return u128; -} - -// Breaks a uint128 of ticks into a Duration. -inline Duration MakeDurationFromU128(uint128 u128, bool is_neg) { - int64_t rep_hi; - uint32_t rep_lo; - const uint64_t h64 = Uint128High64(u128); - const uint64_t l64 = Uint128Low64(u128); - if (h64 == 0) { // fastpath - const uint64_t hi = l64 / kTicksPerSecond; - rep_hi = static_cast<int64_t>(hi); - rep_lo = static_cast<uint32_t>(l64 - hi * kTicksPerSecond); - } else { - // kMaxRepHi64 is the high 64 bits of (2^63 * kTicksPerSecond). - // Any positive tick count whose high 64 bits are >= kMaxRepHi64 - // is not representable as a Duration. A negative tick count can - // have its high 64 bits == kMaxRepHi64 but only when the low 64 - // bits are all zero, otherwise it is not representable either. - const uint64_t kMaxRepHi64 = 0x77359400UL; - if (h64 >= kMaxRepHi64) { - if (is_neg && h64 == kMaxRepHi64 && l64 == 0) { - // Avoid trying to represent -kint64min below. - return time_internal::MakeDuration(kint64min); - } - return is_neg ? -InfiniteDuration() : InfiniteDuration(); - } - const uint128 kTicksPerSecond128 = static_cast<uint64_t>(kTicksPerSecond); - const uint128 hi = u128 / kTicksPerSecond128; - rep_hi = static_cast<int64_t>(Uint128Low64(hi)); - rep_lo = - static_cast<uint32_t>(Uint128Low64(u128 - hi * kTicksPerSecond128)); - } - if (is_neg) { - rep_hi = -rep_hi; - if (rep_lo != 0) { - --rep_hi; - rep_lo = kTicksPerSecond - rep_lo; - } - } - return time_internal::MakeDuration(rep_hi, rep_lo); -} - -// Convert between int64_t and uint64_t, preserving representation. This -// allows us to do arithmetic in the unsigned domain, where overflow has -// well-defined behavior. See operator+=() and operator-=(). -// -// C99 7.20.1.1.1, as referenced by C++11 18.4.1.2, says, "The typedef -// name intN_t designates a signed integer type with width N, no padding -// bits, and a two's complement representation." So, we can convert to -// and from the corresponding uint64_t value using a bit cast. -inline uint64_t EncodeTwosComp(int64_t v) { - return absl::bit_cast<uint64_t>(v); -} -inline int64_t DecodeTwosComp(uint64_t v) { return absl::bit_cast<int64_t>(v); } - -// Note: The overflow detection in this function is done using greater/less *or -// equal* because kint64max/min is too large to be represented exactly in a -// double (which only has 53 bits of precision). In order to avoid assigning to -// rep->hi a double value that is too large for an int64_t (and therefore is -// undefined), we must consider computations that equal kint64max/min as a -// double as overflow cases. -inline bool SafeAddRepHi(double a_hi, double b_hi, Duration* d) { - double c = a_hi + b_hi; - if (c >= static_cast<double>(kint64max)) { - *d = InfiniteDuration(); - return false; - } - if (c <= static_cast<double>(kint64min)) { - *d = -InfiniteDuration(); - return false; - } - *d = time_internal::MakeDuration(c, time_internal::GetRepLo(*d)); - return true; -} - -// A functor that's similar to std::multiplies<T>, except this returns the max -// T value instead of overflowing. This is only defined for uint128. -template <typename Ignored> -struct SafeMultiply { - uint128 operator()(uint128 a, uint128 b) const { - // b hi is always zero because it originated as an int64_t. - assert(Uint128High64(b) == 0); - // Fastpath to avoid the expensive overflow check with division. - if (Uint128High64(a) == 0) { - return (((Uint128Low64(a) | Uint128Low64(b)) >> 32) == 0) - ? static_cast<uint128>(Uint128Low64(a) * Uint128Low64(b)) - : a * b; - } - return b == 0 ? b : (a > kuint128max / b) ? kuint128max : a * b; - } -}; - -// Scales (i.e., multiplies or divides, depending on the Operation template) -// the Duration d by the int64_t r. -template <template <typename> class Operation> -inline Duration ScaleFixed(Duration d, int64_t r) { - const uint128 a = MakeU128Ticks(d); - const uint128 b = MakeU128(r); - const uint128 q = Operation<uint128>()(a, b); - const bool is_neg = (time_internal::GetRepHi(d) < 0) != (r < 0); - return MakeDurationFromU128(q, is_neg); -} - -// Scales (i.e., multiplies or divides, depending on the Operation template) -// the Duration d by the double r. -template <template <typename> class Operation> -inline Duration ScaleDouble(Duration d, double r) { - Operation<double> op; - double hi_doub = op(time_internal::GetRepHi(d), r); - double lo_doub = op(time_internal::GetRepLo(d), r); - - double hi_int = 0; - double hi_frac = std::modf(hi_doub, &hi_int); - - // Moves hi's fractional bits to lo. - lo_doub /= kTicksPerSecond; - lo_doub += hi_frac; - - double lo_int = 0; - double lo_frac = std::modf(lo_doub, &lo_int); - - // Rolls lo into hi if necessary. - int64_t lo64 = Round(lo_frac * kTicksPerSecond); - - Duration ans; - if (!SafeAddRepHi(hi_int, lo_int, &ans)) return ans; - int64_t hi64 = time_internal::GetRepHi(ans); - if (!SafeAddRepHi(hi64, lo64 / kTicksPerSecond, &ans)) return ans; - hi64 = time_internal::GetRepHi(ans); - lo64 %= kTicksPerSecond; - NormalizeTicks(&hi64, &lo64); - return time_internal::MakeDuration(hi64, lo64); -} - -// Tries to divide num by den as fast as possible by looking for common, easy -// cases. If the division was done, the quotient is in *q and the remainder is -// in *rem and true will be returned. -inline bool IDivFastPath(const Duration num, const Duration den, int64_t* q, - Duration* rem) { - // Bail if num or den is an infinity. - if (time_internal::IsInfiniteDuration(num) || - time_internal::IsInfiniteDuration(den)) - return false; - - int64_t num_hi = time_internal::GetRepHi(num); - uint32_t num_lo = time_internal::GetRepLo(num); - int64_t den_hi = time_internal::GetRepHi(den); - uint32_t den_lo = time_internal::GetRepLo(den); - - if (den_hi == 0 && den_lo == kTicksPerNanosecond) { - // Dividing by 1ns - if (num_hi >= 0 && num_hi < (kint64max - kTicksPerSecond) / 1000000000) { - *q = num_hi * 1000000000 + num_lo / kTicksPerNanosecond; - *rem = time_internal::MakeDuration(0, num_lo % den_lo); - return true; - } - } else if (den_hi == 0 && den_lo == 100 * kTicksPerNanosecond) { - // Dividing by 100ns (common when converting to Universal time) - if (num_hi >= 0 && num_hi < (kint64max - kTicksPerSecond) / 10000000) { - *q = num_hi * 10000000 + num_lo / (100 * kTicksPerNanosecond); - *rem = time_internal::MakeDuration(0, num_lo % den_lo); - return true; - } - } else if (den_hi == 0 && den_lo == 1000 * kTicksPerNanosecond) { - // Dividing by 1us - if (num_hi >= 0 && num_hi < (kint64max - kTicksPerSecond) / 1000000) { - *q = num_hi * 1000000 + num_lo / (1000 * kTicksPerNanosecond); - *rem = time_internal::MakeDuration(0, num_lo % den_lo); - return true; - } - } else if (den_hi == 0 && den_lo == 1000000 * kTicksPerNanosecond) { - // Dividing by 1ms - if (num_hi >= 0 && num_hi < (kint64max - kTicksPerSecond) / 1000) { - *q = num_hi * 1000 + num_lo / (1000000 * kTicksPerNanosecond); - *rem = time_internal::MakeDuration(0, num_lo % den_lo); - return true; - } - } else if (den_hi > 0 && den_lo == 0) { - // Dividing by positive multiple of 1s - if (num_hi >= 0) { - if (den_hi == 1) { - *q = num_hi; - *rem = time_internal::MakeDuration(0, num_lo); - return true; - } - *q = num_hi / den_hi; - *rem = time_internal::MakeDuration(num_hi % den_hi, num_lo); - return true; - } - if (num_lo != 0) { - num_hi += 1; - } - int64_t quotient = num_hi / den_hi; - int64_t rem_sec = num_hi % den_hi; - if (rem_sec > 0) { - rem_sec -= den_hi; - quotient += 1; - } - if (num_lo != 0) { - rem_sec -= 1; - } - *q = quotient; - *rem = time_internal::MakeDuration(rem_sec, num_lo); - return true; - } - - return false; -} - -} // namespace - -namespace time_internal { - -// The 'satq' argument indicates whether the quotient should saturate at the -// bounds of int64_t. If it does saturate, the difference will spill over to -// the remainder. If it does not saturate, the remainder remain accurate, -// but the returned quotient will over/underflow int64_t and should not be used. -int64_t IDivDuration(bool satq, const Duration num, const Duration den, - Duration* rem) { - int64_t q = 0; - if (IDivFastPath(num, den, &q, rem)) { - return q; - } - - const bool num_neg = num < ZeroDuration(); - const bool den_neg = den < ZeroDuration(); - const bool quotient_neg = num_neg != den_neg; - - if (time_internal::IsInfiniteDuration(num) || den == ZeroDuration()) { - *rem = num_neg ? -InfiniteDuration() : InfiniteDuration(); - return quotient_neg ? kint64min : kint64max; - } - if (time_internal::IsInfiniteDuration(den)) { - *rem = num; - return 0; - } - - const uint128 a = MakeU128Ticks(num); - const uint128 b = MakeU128Ticks(den); - uint128 quotient128 = a / b; - - if (satq) { - // Limits the quotient to the range of int64_t. - if (quotient128 > uint128(static_cast<uint64_t>(kint64max))) { - quotient128 = quotient_neg ? uint128(static_cast<uint64_t>(kint64min)) - : uint128(static_cast<uint64_t>(kint64max)); - } - } - - const uint128 remainder128 = a - quotient128 * b; - *rem = MakeDurationFromU128(remainder128, num_neg); - - if (!quotient_neg || quotient128 == 0) { - return Uint128Low64(quotient128) & kint64max; - } - // The quotient needs to be negated, but we need to carefully handle - // quotient128s with the top bit on. - return -static_cast<int64_t>(Uint128Low64(quotient128 - 1) & kint64max) - 1; -} - -} // namespace time_internal - -// -// Additive operators. -// - -Duration& Duration::operator+=(Duration rhs) { - if (time_internal::IsInfiniteDuration(*this)) return *this; - if (time_internal::IsInfiniteDuration(rhs)) return *this = rhs; - const int64_t orig_rep_hi = rep_hi_; - rep_hi_ = - DecodeTwosComp(EncodeTwosComp(rep_hi_) + EncodeTwosComp(rhs.rep_hi_)); - if (rep_lo_ >= kTicksPerSecond - rhs.rep_lo_) { - rep_hi_ = DecodeTwosComp(EncodeTwosComp(rep_hi_) + 1); - rep_lo_ -= kTicksPerSecond; - } - rep_lo_ += rhs.rep_lo_; - if (rhs.rep_hi_ < 0 ? rep_hi_ > orig_rep_hi : rep_hi_ < orig_rep_hi) { - return *this = rhs.rep_hi_ < 0 ? -InfiniteDuration() : InfiniteDuration(); - } - return *this; -} - -Duration& Duration::operator-=(Duration rhs) { - if (time_internal::IsInfiniteDuration(*this)) return *this; - if (time_internal::IsInfiniteDuration(rhs)) { - return *this = rhs.rep_hi_ >= 0 ? -InfiniteDuration() : InfiniteDuration(); - } - const int64_t orig_rep_hi = rep_hi_; - rep_hi_ = - DecodeTwosComp(EncodeTwosComp(rep_hi_) - EncodeTwosComp(rhs.rep_hi_)); - if (rep_lo_ < rhs.rep_lo_) { - rep_hi_ = DecodeTwosComp(EncodeTwosComp(rep_hi_) - 1); - rep_lo_ += kTicksPerSecond; - } - rep_lo_ -= rhs.rep_lo_; - if (rhs.rep_hi_ < 0 ? rep_hi_ < orig_rep_hi : rep_hi_ > orig_rep_hi) { - return *this = rhs.rep_hi_ >= 0 ? -InfiniteDuration() : InfiniteDuration(); - } - return *this; -} - -// -// Multiplicative operators. -// - -Duration& Duration::operator*=(int64_t r) { - if (time_internal::IsInfiniteDuration(*this)) { - const bool is_neg = (r < 0) != (rep_hi_ < 0); - return *this = is_neg ? -InfiniteDuration() : InfiniteDuration(); - } - return *this = ScaleFixed<SafeMultiply>(*this, r); -} - -Duration& Duration::operator*=(double r) { - if (time_internal::IsInfiniteDuration(*this) || !IsFinite(r)) { - const bool is_neg = (std::signbit(r) != 0) != (rep_hi_ < 0); - return *this = is_neg ? -InfiniteDuration() : InfiniteDuration(); - } - return *this = ScaleDouble<std::multiplies>(*this, r); -} - -Duration& Duration::operator/=(int64_t r) { - if (time_internal::IsInfiniteDuration(*this) || r == 0) { - const bool is_neg = (r < 0) != (rep_hi_ < 0); - return *this = is_neg ? -InfiniteDuration() : InfiniteDuration(); - } - return *this = ScaleFixed<std::divides>(*this, r); -} - -Duration& Duration::operator/=(double r) { - if (time_internal::IsInfiniteDuration(*this) || !IsValidDivisor(r)) { - const bool is_neg = (std::signbit(r) != 0) != (rep_hi_ < 0); - return *this = is_neg ? -InfiniteDuration() : InfiniteDuration(); - } - return *this = ScaleDouble<std::divides>(*this, r); -} - -Duration& Duration::operator%=(Duration rhs) { - time_internal::IDivDuration(false, *this, rhs, this); - return *this; -} - -double FDivDuration(Duration num, Duration den) { - // Arithmetic with infinity is sticky. - if (time_internal::IsInfiniteDuration(num) || den == ZeroDuration()) { - return (num < ZeroDuration()) == (den < ZeroDuration()) - ? std::numeric_limits<double>::infinity() - : -std::numeric_limits<double>::infinity(); - } - if (time_internal::IsInfiniteDuration(den)) return 0.0; - - double a = - static_cast<double>(time_internal::GetRepHi(num)) * kTicksPerSecond + - time_internal::GetRepLo(num); - double b = - static_cast<double>(time_internal::GetRepHi(den)) * kTicksPerSecond + - time_internal::GetRepLo(den); - return a / b; -} - -// -// Trunc/Floor/Ceil. -// - -Duration Trunc(Duration d, Duration unit) { - return d - (d % unit); -} - -Duration Floor(const Duration d, const Duration unit) { - const absl::Duration td = Trunc(d, unit); - return td <= d ? td : td - AbsDuration(unit); -} - -Duration Ceil(const Duration d, const Duration unit) { - const absl::Duration td = Trunc(d, unit); - return td >= d ? td : td + AbsDuration(unit); -} - -// -// Factory functions. -// - -Duration DurationFromTimespec(timespec ts) { - if (static_cast<uint64_t>(ts.tv_nsec) < 1000 * 1000 * 1000) { - int64_t ticks = ts.tv_nsec * kTicksPerNanosecond; - return time_internal::MakeDuration(ts.tv_sec, ticks); - } - return Seconds(ts.tv_sec) + Nanoseconds(ts.tv_nsec); -} - -Duration DurationFromTimeval(timeval tv) { - if (static_cast<uint64_t>(tv.tv_usec) < 1000 * 1000) { - int64_t ticks = tv.tv_usec * 1000 * kTicksPerNanosecond; - return time_internal::MakeDuration(tv.tv_sec, ticks); - } - return Seconds(tv.tv_sec) + Microseconds(tv.tv_usec); -} - -// -// Conversion to other duration types. -// - -int64_t ToInt64Nanoseconds(Duration d) { - if (time_internal::GetRepHi(d) >= 0 && - time_internal::GetRepHi(d) >> 33 == 0) { - return (time_internal::GetRepHi(d) * 1000 * 1000 * 1000) + - (time_internal::GetRepLo(d) / kTicksPerNanosecond); - } - return d / Nanoseconds(1); -} -int64_t ToInt64Microseconds(Duration d) { - if (time_internal::GetRepHi(d) >= 0 && - time_internal::GetRepHi(d) >> 43 == 0) { - return (time_internal::GetRepHi(d) * 1000 * 1000) + - (time_internal::GetRepLo(d) / (kTicksPerNanosecond * 1000)); - } - return d / Microseconds(1); -} -int64_t ToInt64Milliseconds(Duration d) { - if (time_internal::GetRepHi(d) >= 0 && - time_internal::GetRepHi(d) >> 53 == 0) { - return (time_internal::GetRepHi(d) * 1000) + - (time_internal::GetRepLo(d) / (kTicksPerNanosecond * 1000 * 1000)); - } - return d / Milliseconds(1); -} -int64_t ToInt64Seconds(Duration d) { - int64_t hi = time_internal::GetRepHi(d); - if (time_internal::IsInfiniteDuration(d)) return hi; - if (hi < 0 && time_internal::GetRepLo(d) != 0) ++hi; - return hi; -} -int64_t ToInt64Minutes(Duration d) { - int64_t hi = time_internal::GetRepHi(d); - if (time_internal::IsInfiniteDuration(d)) return hi; - if (hi < 0 && time_internal::GetRepLo(d) != 0) ++hi; - return hi / 60; -} -int64_t ToInt64Hours(Duration d) { - int64_t hi = time_internal::GetRepHi(d); - if (time_internal::IsInfiniteDuration(d)) return hi; - if (hi < 0 && time_internal::GetRepLo(d) != 0) ++hi; - return hi / (60 * 60); -} - -double ToDoubleNanoseconds(Duration d) { - return FDivDuration(d, Nanoseconds(1)); -} -double ToDoubleMicroseconds(Duration d) { - return FDivDuration(d, Microseconds(1)); -} -double ToDoubleMilliseconds(Duration d) { - return FDivDuration(d, Milliseconds(1)); -} -double ToDoubleSeconds(Duration d) { - return FDivDuration(d, Seconds(1)); -} -double ToDoubleMinutes(Duration d) { - return FDivDuration(d, Minutes(1)); -} -double ToDoubleHours(Duration d) { - return FDivDuration(d, Hours(1)); -} - -timespec ToTimespec(Duration d) { - timespec ts; - if (!time_internal::IsInfiniteDuration(d)) { - int64_t rep_hi = time_internal::GetRepHi(d); - uint32_t rep_lo = time_internal::GetRepLo(d); - if (rep_hi < 0) { - // Tweak the fields so that unsigned division of rep_lo - // maps to truncation (towards zero) for the timespec. - rep_lo += kTicksPerNanosecond - 1; - if (rep_lo >= kTicksPerSecond) { - rep_hi += 1; - rep_lo -= kTicksPerSecond; - } - } - ts.tv_sec = rep_hi; - if (ts.tv_sec == rep_hi) { // no time_t narrowing - ts.tv_nsec = rep_lo / kTicksPerNanosecond; - return ts; - } - } - if (d >= ZeroDuration()) { - ts.tv_sec = std::numeric_limits<time_t>::max(); - ts.tv_nsec = 1000 * 1000 * 1000 - 1; - } else { - ts.tv_sec = std::numeric_limits<time_t>::min(); - ts.tv_nsec = 0; - } - return ts; -} - -timeval ToTimeval(Duration d) { - timeval tv; - timespec ts = ToTimespec(d); - if (ts.tv_sec < 0) { - // Tweak the fields so that positive division of tv_nsec - // maps to truncation (towards zero) for the timeval. - ts.tv_nsec += 1000 - 1; - if (ts.tv_nsec >= 1000 * 1000 * 1000) { - ts.tv_sec += 1; - ts.tv_nsec -= 1000 * 1000 * 1000; - } - } - tv.tv_sec = ts.tv_sec; - if (tv.tv_sec != ts.tv_sec) { // narrowing - if (ts.tv_sec < 0) { - tv.tv_sec = std::numeric_limits<decltype(tv.tv_sec)>::min(); - tv.tv_usec = 0; - } else { - tv.tv_sec = std::numeric_limits<decltype(tv.tv_sec)>::max(); - tv.tv_usec = 1000 * 1000 - 1; - } - return tv; - } - tv.tv_usec = static_cast<int>(ts.tv_nsec / 1000); // suseconds_t - return tv; -} - -std::chrono::nanoseconds ToChronoNanoseconds(Duration d) { - return time_internal::ToChronoDuration<std::chrono::nanoseconds>(d); -} -std::chrono::microseconds ToChronoMicroseconds(Duration d) { - return time_internal::ToChronoDuration<std::chrono::microseconds>(d); -} -std::chrono::milliseconds ToChronoMilliseconds(Duration d) { - return time_internal::ToChronoDuration<std::chrono::milliseconds>(d); -} -std::chrono::seconds ToChronoSeconds(Duration d) { - return time_internal::ToChronoDuration<std::chrono::seconds>(d); -} -std::chrono::minutes ToChronoMinutes(Duration d) { - return time_internal::ToChronoDuration<std::chrono::minutes>(d); -} -std::chrono::hours ToChronoHours(Duration d) { - return time_internal::ToChronoDuration<std::chrono::hours>(d); -} - -// -// To/From string formatting. -// - -namespace { - -// Formats a positive 64-bit integer in the given field width. Note that -// it is up to the caller of Format64() to ensure that there is sufficient -// space before ep to hold the conversion. -char* Format64(char* ep, int width, int64_t v) { - do { - --width; - *--ep = '0' + (v % 10); // contiguous digits - } while (v /= 10); - while (--width >= 0) *--ep = '0'; // zero pad - return ep; -} - -// Helpers for FormatDuration() that format 'n' and append it to 'out' -// followed by the given 'unit'. If 'n' formats to "0", nothing is -// appended (not even the unit). - -// A type that encapsulates how to display a value of a particular unit. For -// values that are displayed with fractional parts, the precision indicates -// where to round the value. The precision varies with the display unit because -// a Duration can hold only quarters of a nanosecond, so displaying information -// beyond that is just noise. -// -// For example, a microsecond value of 42.00025xxxxx should not display beyond 5 -// fractional digits, because it is in the noise of what a Duration can -// represent. -struct DisplayUnit { - const char* abbr; - int prec; - double pow10; -}; -const DisplayUnit kDisplayNano = {"ns", 2, 1e2}; -const DisplayUnit kDisplayMicro = {"us", 5, 1e5}; -const DisplayUnit kDisplayMilli = {"ms", 8, 1e8}; -const DisplayUnit kDisplaySec = {"s", 11, 1e11}; -const DisplayUnit kDisplayMin = {"m", -1, 0.0}; // prec ignored -const DisplayUnit kDisplayHour = {"h", -1, 0.0}; // prec ignored - -void AppendNumberUnit(std::string* out, int64_t n, DisplayUnit unit) { - char buf[sizeof("2562047788015216")]; // hours in max duration - char* const ep = buf + sizeof(buf); - char* bp = Format64(ep, 0, n); - if (*bp != '0' || bp + 1 != ep) { - out->append(bp, ep - bp); - out->append(unit.abbr); - } -} - -// Note: unit.prec is limited to double's digits10 value (typically 15) so it -// always fits in buf[]. -void AppendNumberUnit(std::string* out, double n, DisplayUnit unit) { - constexpr int kBufferSize = std::numeric_limits<double>::digits10; - const int prec = std::min(kBufferSize, unit.prec); - char buf[kBufferSize]; // also large enough to hold integer part - char* ep = buf + sizeof(buf); - double d = 0; - int64_t frac_part = Round(std::modf(n, &d) * unit.pow10); - int64_t int_part = d; - if (int_part != 0 || frac_part != 0) { - char* bp = Format64(ep, 0, int_part); // always < 1000 - out->append(bp, ep - bp); - if (frac_part != 0) { - out->push_back('.'); - bp = Format64(ep, prec, frac_part); - while (ep[-1] == '0') --ep; - out->append(bp, ep - bp); - } - out->append(unit.abbr); - } -} - -} // namespace - -// From Go's doc at https://golang.org/pkg/time/#Duration.String -// [FormatDuration] returns a string representing the duration in the -// form "72h3m0.5s". Leading zero units are omitted. As a special -// case, durations less than one second format use a smaller unit -// (milli-, micro-, or nanoseconds) to ensure that the leading digit -// is non-zero. The zero duration formats as 0, with no unit. -std::string FormatDuration(Duration d) { - const Duration min_duration = Seconds(kint64min); - if (d == min_duration) { - // Avoid needing to negate kint64min by directly returning what the - // following code should produce in that case. - return "-2562047788015215h30m8s"; - } - std::string s; - if (d < ZeroDuration()) { - s.append("-"); - d = -d; - } - if (d == InfiniteDuration()) { - s.append("inf"); - } else if (d < Seconds(1)) { - // Special case for durations with a magnitude < 1 second. The duration - // is printed as a fraction of a single unit, e.g., "1.2ms". - if (d < Microseconds(1)) { - AppendNumberUnit(&s, FDivDuration(d, Nanoseconds(1)), kDisplayNano); - } else if (d < Milliseconds(1)) { - AppendNumberUnit(&s, FDivDuration(d, Microseconds(1)), kDisplayMicro); - } else { - AppendNumberUnit(&s, FDivDuration(d, Milliseconds(1)), kDisplayMilli); - } - } else { - AppendNumberUnit(&s, IDivDuration(d, Hours(1), &d), kDisplayHour); - AppendNumberUnit(&s, IDivDuration(d, Minutes(1), &d), kDisplayMin); - AppendNumberUnit(&s, FDivDuration(d, Seconds(1)), kDisplaySec); - } - if (s.empty() || s == "-") { - s = "0"; - } - return s; -} - -namespace { - -// A helper for ParseDuration() that parses a leading number from the given -// string and stores the result in *int_part/*frac_part/*frac_scale. The -// given string pointer is modified to point to the first unconsumed char. -bool ConsumeDurationNumber(const char** dpp, const char* ep, int64_t* int_part, - int64_t* frac_part, int64_t* frac_scale) { - *int_part = 0; - *frac_part = 0; - *frac_scale = 1; // invariant: *frac_part < *frac_scale - const char* start = *dpp; - for (; *dpp != ep; *dpp += 1) { - const int d = **dpp - '0'; // contiguous digits - if (d < 0 || 10 <= d) break; - - if (*int_part > kint64max / 10) return false; - *int_part *= 10; - if (*int_part > kint64max - d) return false; - *int_part += d; - } - const bool int_part_empty = (*dpp == start); - if (*dpp == ep || **dpp != '.') return !int_part_empty; - - for (*dpp += 1; *dpp != ep; *dpp += 1) { - const int d = **dpp - '0'; // contiguous digits - if (d < 0 || 10 <= d) break; - if (*frac_scale <= kint64max / 10) { - *frac_part *= 10; - *frac_part += d; - *frac_scale *= 10; - } - } - return !int_part_empty || *frac_scale != 1; -} - -// A helper for ParseDuration() that parses a leading unit designator (e.g., -// ns, us, ms, s, m, h) from the given string and stores the resulting unit -// in "*unit". The given string pointer is modified to point to the first -// unconsumed char. -bool ConsumeDurationUnit(const char** start, const char* end, Duration* unit) { - size_t size = end - *start; - switch (size) { - case 0: - return false; - default: - switch (**start) { - case 'n': - if (*(*start + 1) == 's') { - *start += 2; - *unit = Nanoseconds(1); - return true; - } - break; - case 'u': - if (*(*start + 1) == 's') { - *start += 2; - *unit = Microseconds(1); - return true; - } - break; - case 'm': - if (*(*start + 1) == 's') { - *start += 2; - *unit = Milliseconds(1); - return true; - } - break; - default: - break; - } - ABSL_FALLTHROUGH_INTENDED; - case 1: - switch (**start) { - case 's': - *unit = Seconds(1); - *start += 1; - return true; - case 'm': - *unit = Minutes(1); - *start += 1; - return true; - case 'h': - *unit = Hours(1); - *start += 1; - return true; - default: - return false; - } - } -} - -} // namespace - -// From Go's doc at https://golang.org/pkg/time/#ParseDuration -// [ParseDuration] parses a duration string. A duration string is -// a possibly signed sequence of decimal numbers, each with optional -// fraction and a unit suffix, such as "300ms", "-1.5h" or "2h45m". -// Valid time units are "ns", "us" "ms", "s", "m", "h". -bool ParseDuration(absl::string_view dur_sv, Duration* d) { - int sign = 1; - if (absl::ConsumePrefix(&dur_sv, "-")) { - sign = -1; - } else { - absl::ConsumePrefix(&dur_sv, "+"); - } - if (dur_sv.empty()) return false; - - // Special case for a string of "0". - if (dur_sv == "0") { - *d = ZeroDuration(); - return true; - } - - if (dur_sv == "inf") { - *d = sign * InfiniteDuration(); - return true; - } - - const char* start = dur_sv.data(); - const char* end = start + dur_sv.size(); - - Duration dur; - while (start != end) { - int64_t int_part; - int64_t frac_part; - int64_t frac_scale; - Duration unit; - if (!ConsumeDurationNumber(&start, end, &int_part, &frac_part, - &frac_scale) || - !ConsumeDurationUnit(&start, end, &unit)) { - return false; - } - if (int_part != 0) dur += sign * int_part * unit; - if (frac_part != 0) dur += sign * frac_part * unit / frac_scale; - } - *d = dur; - return true; -} - -bool AbslParseFlag(absl::string_view text, Duration* dst, std::string*) { - return ParseDuration(text, dst); -} - -std::string AbslUnparseFlag(Duration d) { return FormatDuration(d); } -bool ParseFlag(const std::string& text, Duration* dst, std::string* ) { - return ParseDuration(text, dst); -} - -std::string UnparseFlag(Duration d) { return FormatDuration(d); } - -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/duration_benchmark.cc b/third_party/abseil_cpp/absl/time/duration_benchmark.cc deleted file mode 100644 index 83a836c8c8..0000000000 --- a/third_party/abseil_cpp/absl/time/duration_benchmark.cc +++ /dev/null @@ -1,428 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include <cmath> -#include <cstddef> -#include <cstdint> -#include <ctime> -#include <string> - -#include "absl/base/attributes.h" -#include "absl/time/time.h" -#include "benchmark/benchmark.h" - -namespace { - -// -// Factory functions -// - -void BM_Duration_Factory_Nanoseconds(benchmark::State& state) { - int64_t i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Nanoseconds(i)); - i += 314159; - } -} -BENCHMARK(BM_Duration_Factory_Nanoseconds); - -void BM_Duration_Factory_Microseconds(benchmark::State& state) { - int64_t i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Microseconds(i)); - i += 314; - } -} -BENCHMARK(BM_Duration_Factory_Microseconds); - -void BM_Duration_Factory_Milliseconds(benchmark::State& state) { - int64_t i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Milliseconds(i)); - i += 1; - } -} -BENCHMARK(BM_Duration_Factory_Milliseconds); - -void BM_Duration_Factory_Seconds(benchmark::State& state) { - int64_t i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Seconds(i)); - i += 1; - } -} -BENCHMARK(BM_Duration_Factory_Seconds); - -void BM_Duration_Factory_Minutes(benchmark::State& state) { - int64_t i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Minutes(i)); - i += 1; - } -} -BENCHMARK(BM_Duration_Factory_Minutes); - -void BM_Duration_Factory_Hours(benchmark::State& state) { - int64_t i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Hours(i)); - i += 1; - } -} -BENCHMARK(BM_Duration_Factory_Hours); - -void BM_Duration_Factory_DoubleNanoseconds(benchmark::State& state) { - double d = 1; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Nanoseconds(d)); - d = d * 1.00000001 + 1; - } -} -BENCHMARK(BM_Duration_Factory_DoubleNanoseconds); - -void BM_Duration_Factory_DoubleMicroseconds(benchmark::State& state) { - double d = 1e-3; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Microseconds(d)); - d = d * 1.00000001 + 1e-3; - } -} -BENCHMARK(BM_Duration_Factory_DoubleMicroseconds); - -void BM_Duration_Factory_DoubleMilliseconds(benchmark::State& state) { - double d = 1e-6; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Milliseconds(d)); - d = d * 1.00000001 + 1e-6; - } -} -BENCHMARK(BM_Duration_Factory_DoubleMilliseconds); - -void BM_Duration_Factory_DoubleSeconds(benchmark::State& state) { - double d = 1e-9; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Seconds(d)); - d = d * 1.00000001 + 1e-9; - } -} -BENCHMARK(BM_Duration_Factory_DoubleSeconds); - -void BM_Duration_Factory_DoubleMinutes(benchmark::State& state) { - double d = 1e-9; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Minutes(d)); - d = d * 1.00000001 + 1e-9; - } -} -BENCHMARK(BM_Duration_Factory_DoubleMinutes); - -void BM_Duration_Factory_DoubleHours(benchmark::State& state) { - double d = 1e-9; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::Hours(d)); - d = d * 1.00000001 + 1e-9; - } -} -BENCHMARK(BM_Duration_Factory_DoubleHours); - -// -// Arithmetic -// - -void BM_Duration_Addition(benchmark::State& state) { - absl::Duration d = absl::Nanoseconds(1); - absl::Duration step = absl::Milliseconds(1); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(d += step); - } -} -BENCHMARK(BM_Duration_Addition); - -void BM_Duration_Subtraction(benchmark::State& state) { - absl::Duration d = absl::Seconds(std::numeric_limits<int64_t>::max()); - absl::Duration step = absl::Milliseconds(1); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(d -= step); - } -} -BENCHMARK(BM_Duration_Subtraction); - -void BM_Duration_Multiplication_Fixed(benchmark::State& state) { - absl::Duration d = absl::Milliseconds(1); - absl::Duration s; - int i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(s += d * (i + 1)); - ++i; - } -} -BENCHMARK(BM_Duration_Multiplication_Fixed); - -void BM_Duration_Multiplication_Double(benchmark::State& state) { - absl::Duration d = absl::Milliseconds(1); - absl::Duration s; - int i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(s += d * (i + 1.0)); - ++i; - } -} -BENCHMARK(BM_Duration_Multiplication_Double); - -void BM_Duration_Division_Fixed(benchmark::State& state) { - absl::Duration d = absl::Seconds(1); - int i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(d /= i + 1); - ++i; - } -} -BENCHMARK(BM_Duration_Division_Fixed); - -void BM_Duration_Division_Double(benchmark::State& state) { - absl::Duration d = absl::Seconds(1); - int i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(d /= i + 1.0); - ++i; - } -} -BENCHMARK(BM_Duration_Division_Double); - -void BM_Duration_FDivDuration_Nanoseconds(benchmark::State& state) { - double d = 1; - int i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize( - d += absl::FDivDuration(absl::Milliseconds(i), absl::Nanoseconds(1))); - ++i; - } -} -BENCHMARK(BM_Duration_FDivDuration_Nanoseconds); - -void BM_Duration_IDivDuration_Nanoseconds(benchmark::State& state) { - int64_t a = 1; - absl::Duration ignore; - int i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(a += - absl::IDivDuration(absl::Nanoseconds(i), - absl::Nanoseconds(1), &ignore)); - ++i; - } -} -BENCHMARK(BM_Duration_IDivDuration_Nanoseconds); - -void BM_Duration_IDivDuration_Microseconds(benchmark::State& state) { - int64_t a = 1; - absl::Duration ignore; - int i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(a += absl::IDivDuration(absl::Microseconds(i), - absl::Microseconds(1), - &ignore)); - ++i; - } -} -BENCHMARK(BM_Duration_IDivDuration_Microseconds); - -void BM_Duration_IDivDuration_Milliseconds(benchmark::State& state) { - int64_t a = 1; - absl::Duration ignore; - int i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(a += absl::IDivDuration(absl::Milliseconds(i), - absl::Milliseconds(1), - &ignore)); - ++i; - } -} -BENCHMARK(BM_Duration_IDivDuration_Milliseconds); - -void BM_Duration_IDivDuration_Seconds(benchmark::State& state) { - int64_t a = 1; - absl::Duration ignore; - int i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize( - a += absl::IDivDuration(absl::Seconds(i), absl::Seconds(1), &ignore)); - ++i; - } -} -BENCHMARK(BM_Duration_IDivDuration_Seconds); - -void BM_Duration_IDivDuration_Minutes(benchmark::State& state) { - int64_t a = 1; - absl::Duration ignore; - int i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize( - a += absl::IDivDuration(absl::Minutes(i), absl::Minutes(1), &ignore)); - ++i; - } -} -BENCHMARK(BM_Duration_IDivDuration_Minutes); - -void BM_Duration_IDivDuration_Hours(benchmark::State& state) { - int64_t a = 1; - absl::Duration ignore; - int i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize( - a += absl::IDivDuration(absl::Hours(i), absl::Hours(1), &ignore)); - ++i; - } -} -BENCHMARK(BM_Duration_IDivDuration_Hours); - -void BM_Duration_ToInt64Nanoseconds(benchmark::State& state) { - absl::Duration d = absl::Seconds(100000); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::ToInt64Nanoseconds(d)); - } -} -BENCHMARK(BM_Duration_ToInt64Nanoseconds); - -void BM_Duration_ToInt64Microseconds(benchmark::State& state) { - absl::Duration d = absl::Seconds(100000); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::ToInt64Microseconds(d)); - } -} -BENCHMARK(BM_Duration_ToInt64Microseconds); - -void BM_Duration_ToInt64Milliseconds(benchmark::State& state) { - absl::Duration d = absl::Seconds(100000); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::ToInt64Milliseconds(d)); - } -} -BENCHMARK(BM_Duration_ToInt64Milliseconds); - -void BM_Duration_ToInt64Seconds(benchmark::State& state) { - absl::Duration d = absl::Seconds(100000); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::ToInt64Seconds(d)); - } -} -BENCHMARK(BM_Duration_ToInt64Seconds); - -void BM_Duration_ToInt64Minutes(benchmark::State& state) { - absl::Duration d = absl::Seconds(100000); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::ToInt64Minutes(d)); - } -} -BENCHMARK(BM_Duration_ToInt64Minutes); - -void BM_Duration_ToInt64Hours(benchmark::State& state) { - absl::Duration d = absl::Seconds(100000); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::ToInt64Hours(d)); - } -} -BENCHMARK(BM_Duration_ToInt64Hours); - -// -// To/FromTimespec -// - -void BM_Duration_ToTimespec_AbslTime(benchmark::State& state) { - absl::Duration d = absl::Seconds(1); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::ToTimespec(d)); - } -} -BENCHMARK(BM_Duration_ToTimespec_AbslTime); - -ABSL_ATTRIBUTE_NOINLINE timespec DoubleToTimespec(double seconds) { - timespec ts; - ts.tv_sec = seconds; - ts.tv_nsec = (seconds - ts.tv_sec) * (1000 * 1000 * 1000); - return ts; -} - -void BM_Duration_ToTimespec_Double(benchmark::State& state) { - while (state.KeepRunning()) { - benchmark::DoNotOptimize(DoubleToTimespec(1.0)); - } -} -BENCHMARK(BM_Duration_ToTimespec_Double); - -void BM_Duration_FromTimespec_AbslTime(benchmark::State& state) { - timespec ts; - ts.tv_sec = 0; - ts.tv_nsec = 0; - while (state.KeepRunning()) { - if (++ts.tv_nsec == 1000 * 1000 * 1000) { - ++ts.tv_sec; - ts.tv_nsec = 0; - } - benchmark::DoNotOptimize(absl::DurationFromTimespec(ts)); - } -} -BENCHMARK(BM_Duration_FromTimespec_AbslTime); - -ABSL_ATTRIBUTE_NOINLINE double TimespecToDouble(timespec ts) { - return ts.tv_sec + (ts.tv_nsec / (1000 * 1000 * 1000)); -} - -void BM_Duration_FromTimespec_Double(benchmark::State& state) { - timespec ts; - ts.tv_sec = 0; - ts.tv_nsec = 0; - while (state.KeepRunning()) { - if (++ts.tv_nsec == 1000 * 1000 * 1000) { - ++ts.tv_sec; - ts.tv_nsec = 0; - } - benchmark::DoNotOptimize(TimespecToDouble(ts)); - } -} -BENCHMARK(BM_Duration_FromTimespec_Double); - -// -// String conversions -// - -const char* const kDurations[] = { - "0", // 0 - "123ns", // 1 - "1h2m3s", // 2 - "-2h3m4.005006007s", // 3 - "2562047788015215h30m7.99999999975s", // 4 -}; -const int kNumDurations = sizeof(kDurations) / sizeof(kDurations[0]); - -void BM_Duration_FormatDuration(benchmark::State& state) { - const std::string s = kDurations[state.range(0)]; - state.SetLabel(s); - absl::Duration d; - absl::ParseDuration(kDurations[state.range(0)], &d); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::FormatDuration(d)); - } -} -BENCHMARK(BM_Duration_FormatDuration)->DenseRange(0, kNumDurations - 1); - -void BM_Duration_ParseDuration(benchmark::State& state) { - const std::string s = kDurations[state.range(0)]; - state.SetLabel(s); - absl::Duration d; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::ParseDuration(s, &d)); - } -} -BENCHMARK(BM_Duration_ParseDuration)->DenseRange(0, kNumDurations - 1); - -} // namespace diff --git a/third_party/abseil_cpp/absl/time/duration_test.cc b/third_party/abseil_cpp/absl/time/duration_test.cc deleted file mode 100644 index 4d85a2c4f4..0000000000 --- a/third_party/abseil_cpp/absl/time/duration_test.cc +++ /dev/null @@ -1,1808 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#if defined(_MSC_VER) -#include <winsock2.h> // for timeval -#endif - -#include <chrono> // NOLINT(build/c++11) -#include <cmath> -#include <cstdint> -#include <ctime> -#include <iomanip> -#include <limits> -#include <random> -#include <string> - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/time/time.h" - -namespace { - -constexpr int64_t kint64max = std::numeric_limits<int64_t>::max(); -constexpr int64_t kint64min = std::numeric_limits<int64_t>::min(); - -// Approximates the given number of years. This is only used to make some test -// code more readable. -absl::Duration ApproxYears(int64_t n) { return absl::Hours(n) * 365 * 24; } - -// A gMock matcher to match timespec values. Use this matcher like: -// timespec ts1, ts2; -// EXPECT_THAT(ts1, TimespecMatcher(ts2)); -MATCHER_P(TimespecMatcher, ts, "") { - if (ts.tv_sec == arg.tv_sec && ts.tv_nsec == arg.tv_nsec) - return true; - *result_listener << "expected: {" << ts.tv_sec << ", " << ts.tv_nsec << "} "; - *result_listener << "actual: {" << arg.tv_sec << ", " << arg.tv_nsec << "}"; - return false; -} - -// A gMock matcher to match timeval values. Use this matcher like: -// timeval tv1, tv2; -// EXPECT_THAT(tv1, TimevalMatcher(tv2)); -MATCHER_P(TimevalMatcher, tv, "") { - if (tv.tv_sec == arg.tv_sec && tv.tv_usec == arg.tv_usec) - return true; - *result_listener << "expected: {" << tv.tv_sec << ", " << tv.tv_usec << "} "; - *result_listener << "actual: {" << arg.tv_sec << ", " << arg.tv_usec << "}"; - return false; -} - -TEST(Duration, ConstExpr) { - constexpr absl::Duration d0 = absl::ZeroDuration(); - static_assert(d0 == absl::ZeroDuration(), "ZeroDuration()"); - constexpr absl::Duration d1 = absl::Seconds(1); - static_assert(d1 == absl::Seconds(1), "Seconds(1)"); - static_assert(d1 != absl::ZeroDuration(), "Seconds(1)"); - constexpr absl::Duration d2 = absl::InfiniteDuration(); - static_assert(d2 == absl::InfiniteDuration(), "InfiniteDuration()"); - static_assert(d2 != absl::ZeroDuration(), "InfiniteDuration()"); -} - -TEST(Duration, ValueSemantics) { - // If this compiles, the test passes. - constexpr absl::Duration a; // Default construction - constexpr absl::Duration b = a; // Copy construction - constexpr absl::Duration c(b); // Copy construction (again) - - absl::Duration d; - d = c; // Assignment -} - -TEST(Duration, Factories) { - constexpr absl::Duration zero = absl::ZeroDuration(); - constexpr absl::Duration nano = absl::Nanoseconds(1); - constexpr absl::Duration micro = absl::Microseconds(1); - constexpr absl::Duration milli = absl::Milliseconds(1); - constexpr absl::Duration sec = absl::Seconds(1); - constexpr absl::Duration min = absl::Minutes(1); - constexpr absl::Duration hour = absl::Hours(1); - - EXPECT_EQ(zero, absl::Duration()); - EXPECT_EQ(zero, absl::Seconds(0)); - EXPECT_EQ(nano, absl::Nanoseconds(1)); - EXPECT_EQ(micro, absl::Nanoseconds(1000)); - EXPECT_EQ(milli, absl::Microseconds(1000)); - EXPECT_EQ(sec, absl::Milliseconds(1000)); - EXPECT_EQ(min, absl::Seconds(60)); - EXPECT_EQ(hour, absl::Minutes(60)); - - // Tests factory limits - const absl::Duration inf = absl::InfiniteDuration(); - - EXPECT_GT(inf, absl::Seconds(kint64max)); - EXPECT_LT(-inf, absl::Seconds(kint64min)); - EXPECT_LT(-inf, absl::Seconds(-kint64max)); - - EXPECT_EQ(inf, absl::Minutes(kint64max)); - EXPECT_EQ(-inf, absl::Minutes(kint64min)); - EXPECT_EQ(-inf, absl::Minutes(-kint64max)); - EXPECT_GT(inf, absl::Minutes(kint64max / 60)); - EXPECT_LT(-inf, absl::Minutes(kint64min / 60)); - EXPECT_LT(-inf, absl::Minutes(-kint64max / 60)); - - EXPECT_EQ(inf, absl::Hours(kint64max)); - EXPECT_EQ(-inf, absl::Hours(kint64min)); - EXPECT_EQ(-inf, absl::Hours(-kint64max)); - EXPECT_GT(inf, absl::Hours(kint64max / 3600)); - EXPECT_LT(-inf, absl::Hours(kint64min / 3600)); - EXPECT_LT(-inf, absl::Hours(-kint64max / 3600)); -} - -TEST(Duration, ToConversion) { -#define TEST_DURATION_CONVERSION(UNIT) \ - do { \ - const absl::Duration d = absl::UNIT(1.5); \ - constexpr absl::Duration z = absl::ZeroDuration(); \ - constexpr absl::Duration inf = absl::InfiniteDuration(); \ - constexpr double dbl_inf = std::numeric_limits<double>::infinity(); \ - EXPECT_EQ(kint64min, absl::ToInt64##UNIT(-inf)); \ - EXPECT_EQ(-1, absl::ToInt64##UNIT(-d)); \ - EXPECT_EQ(0, absl::ToInt64##UNIT(z)); \ - EXPECT_EQ(1, absl::ToInt64##UNIT(d)); \ - EXPECT_EQ(kint64max, absl::ToInt64##UNIT(inf)); \ - EXPECT_EQ(-dbl_inf, absl::ToDouble##UNIT(-inf)); \ - EXPECT_EQ(-1.5, absl::ToDouble##UNIT(-d)); \ - EXPECT_EQ(0, absl::ToDouble##UNIT(z)); \ - EXPECT_EQ(1.5, absl::ToDouble##UNIT(d)); \ - EXPECT_EQ(dbl_inf, absl::ToDouble##UNIT(inf)); \ - } while (0) - - TEST_DURATION_CONVERSION(Nanoseconds); - TEST_DURATION_CONVERSION(Microseconds); - TEST_DURATION_CONVERSION(Milliseconds); - TEST_DURATION_CONVERSION(Seconds); - TEST_DURATION_CONVERSION(Minutes); - TEST_DURATION_CONVERSION(Hours); - -#undef TEST_DURATION_CONVERSION -} - -template <int64_t N> -void TestToConversion() { - constexpr absl::Duration nano = absl::Nanoseconds(N); - EXPECT_EQ(N, absl::ToInt64Nanoseconds(nano)); - EXPECT_EQ(0, absl::ToInt64Microseconds(nano)); - EXPECT_EQ(0, absl::ToInt64Milliseconds(nano)); - EXPECT_EQ(0, absl::ToInt64Seconds(nano)); - EXPECT_EQ(0, absl::ToInt64Minutes(nano)); - EXPECT_EQ(0, absl::ToInt64Hours(nano)); - const absl::Duration micro = absl::Microseconds(N); - EXPECT_EQ(N * 1000, absl::ToInt64Nanoseconds(micro)); - EXPECT_EQ(N, absl::ToInt64Microseconds(micro)); - EXPECT_EQ(0, absl::ToInt64Milliseconds(micro)); - EXPECT_EQ(0, absl::ToInt64Seconds(micro)); - EXPECT_EQ(0, absl::ToInt64Minutes(micro)); - EXPECT_EQ(0, absl::ToInt64Hours(micro)); - const absl::Duration milli = absl::Milliseconds(N); - EXPECT_EQ(N * 1000 * 1000, absl::ToInt64Nanoseconds(milli)); - EXPECT_EQ(N * 1000, absl::ToInt64Microseconds(milli)); - EXPECT_EQ(N, absl::ToInt64Milliseconds(milli)); - EXPECT_EQ(0, absl::ToInt64Seconds(milli)); - EXPECT_EQ(0, absl::ToInt64Minutes(milli)); - EXPECT_EQ(0, absl::ToInt64Hours(milli)); - const absl::Duration sec = absl::Seconds(N); - EXPECT_EQ(N * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(sec)); - EXPECT_EQ(N * 1000 * 1000, absl::ToInt64Microseconds(sec)); - EXPECT_EQ(N * 1000, absl::ToInt64Milliseconds(sec)); - EXPECT_EQ(N, absl::ToInt64Seconds(sec)); - EXPECT_EQ(0, absl::ToInt64Minutes(sec)); - EXPECT_EQ(0, absl::ToInt64Hours(sec)); - const absl::Duration min = absl::Minutes(N); - EXPECT_EQ(N * 60 * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(min)); - EXPECT_EQ(N * 60 * 1000 * 1000, absl::ToInt64Microseconds(min)); - EXPECT_EQ(N * 60 * 1000, absl::ToInt64Milliseconds(min)); - EXPECT_EQ(N * 60, absl::ToInt64Seconds(min)); - EXPECT_EQ(N, absl::ToInt64Minutes(min)); - EXPECT_EQ(0, absl::ToInt64Hours(min)); - const absl::Duration hour = absl::Hours(N); - EXPECT_EQ(N * 60 * 60 * 1000 * 1000 * 1000, absl::ToInt64Nanoseconds(hour)); - EXPECT_EQ(N * 60 * 60 * 1000 * 1000, absl::ToInt64Microseconds(hour)); - EXPECT_EQ(N * 60 * 60 * 1000, absl::ToInt64Milliseconds(hour)); - EXPECT_EQ(N * 60 * 60, absl::ToInt64Seconds(hour)); - EXPECT_EQ(N * 60, absl::ToInt64Minutes(hour)); - EXPECT_EQ(N, absl::ToInt64Hours(hour)); -} - -TEST(Duration, ToConversionDeprecated) { - TestToConversion<43>(); - TestToConversion<1>(); - TestToConversion<0>(); - TestToConversion<-1>(); - TestToConversion<-43>(); -} - -template <int64_t N> -void TestFromChronoBasicEquality() { - using std::chrono::nanoseconds; - using std::chrono::microseconds; - using std::chrono::milliseconds; - using std::chrono::seconds; - using std::chrono::minutes; - using std::chrono::hours; - - static_assert(absl::Nanoseconds(N) == absl::FromChrono(nanoseconds(N)), ""); - static_assert(absl::Microseconds(N) == absl::FromChrono(microseconds(N)), ""); - static_assert(absl::Milliseconds(N) == absl::FromChrono(milliseconds(N)), ""); - static_assert(absl::Seconds(N) == absl::FromChrono(seconds(N)), ""); - static_assert(absl::Minutes(N) == absl::FromChrono(minutes(N)), ""); - static_assert(absl::Hours(N) == absl::FromChrono(hours(N)), ""); -} - -TEST(Duration, FromChrono) { - TestFromChronoBasicEquality<-123>(); - TestFromChronoBasicEquality<-1>(); - TestFromChronoBasicEquality<0>(); - TestFromChronoBasicEquality<1>(); - TestFromChronoBasicEquality<123>(); - - // Minutes (might, depending on the platform) saturate at +inf. - const auto chrono_minutes_max = std::chrono::minutes::max(); - const auto minutes_max = absl::FromChrono(chrono_minutes_max); - const int64_t minutes_max_count = chrono_minutes_max.count(); - if (minutes_max_count > kint64max / 60) { - EXPECT_EQ(absl::InfiniteDuration(), minutes_max); - } else { - EXPECT_EQ(absl::Minutes(minutes_max_count), minutes_max); - } - - // Minutes (might, depending on the platform) saturate at -inf. - const auto chrono_minutes_min = std::chrono::minutes::min(); - const auto minutes_min = absl::FromChrono(chrono_minutes_min); - const int64_t minutes_min_count = chrono_minutes_min.count(); - if (minutes_min_count < kint64min / 60) { - EXPECT_EQ(-absl::InfiniteDuration(), minutes_min); - } else { - EXPECT_EQ(absl::Minutes(minutes_min_count), minutes_min); - } - - // Hours (might, depending on the platform) saturate at +inf. - const auto chrono_hours_max = std::chrono::hours::max(); - const auto hours_max = absl::FromChrono(chrono_hours_max); - const int64_t hours_max_count = chrono_hours_max.count(); - if (hours_max_count > kint64max / 3600) { - EXPECT_EQ(absl::InfiniteDuration(), hours_max); - } else { - EXPECT_EQ(absl::Hours(hours_max_count), hours_max); - } - - // Hours (might, depending on the platform) saturate at -inf. - const auto chrono_hours_min = std::chrono::hours::min(); - const auto hours_min = absl::FromChrono(chrono_hours_min); - const int64_t hours_min_count = chrono_hours_min.count(); - if (hours_min_count < kint64min / 3600) { - EXPECT_EQ(-absl::InfiniteDuration(), hours_min); - } else { - EXPECT_EQ(absl::Hours(hours_min_count), hours_min); - } -} - -template <int64_t N> -void TestToChrono() { - using std::chrono::nanoseconds; - using std::chrono::microseconds; - using std::chrono::milliseconds; - using std::chrono::seconds; - using std::chrono::minutes; - using std::chrono::hours; - - EXPECT_EQ(nanoseconds(N), absl::ToChronoNanoseconds(absl::Nanoseconds(N))); - EXPECT_EQ(microseconds(N), absl::ToChronoMicroseconds(absl::Microseconds(N))); - EXPECT_EQ(milliseconds(N), absl::ToChronoMilliseconds(absl::Milliseconds(N))); - EXPECT_EQ(seconds(N), absl::ToChronoSeconds(absl::Seconds(N))); - - constexpr auto absl_minutes = absl::Minutes(N); - auto chrono_minutes = minutes(N); - if (absl_minutes == -absl::InfiniteDuration()) { - chrono_minutes = minutes::min(); - } else if (absl_minutes == absl::InfiniteDuration()) { - chrono_minutes = minutes::max(); - } - EXPECT_EQ(chrono_minutes, absl::ToChronoMinutes(absl_minutes)); - - constexpr auto absl_hours = absl::Hours(N); - auto chrono_hours = hours(N); - if (absl_hours == -absl::InfiniteDuration()) { - chrono_hours = hours::min(); - } else if (absl_hours == absl::InfiniteDuration()) { - chrono_hours = hours::max(); - } - EXPECT_EQ(chrono_hours, absl::ToChronoHours(absl_hours)); -} - -TEST(Duration, ToChrono) { - using std::chrono::nanoseconds; - using std::chrono::microseconds; - using std::chrono::milliseconds; - using std::chrono::seconds; - using std::chrono::minutes; - using std::chrono::hours; - - TestToChrono<kint64min>(); - TestToChrono<-1>(); - TestToChrono<0>(); - TestToChrono<1>(); - TestToChrono<kint64max>(); - - // Verify truncation toward zero. - const auto tick = absl::Nanoseconds(1) / 4; - EXPECT_EQ(nanoseconds(0), absl::ToChronoNanoseconds(tick)); - EXPECT_EQ(nanoseconds(0), absl::ToChronoNanoseconds(-tick)); - EXPECT_EQ(microseconds(0), absl::ToChronoMicroseconds(tick)); - EXPECT_EQ(microseconds(0), absl::ToChronoMicroseconds(-tick)); - EXPECT_EQ(milliseconds(0), absl::ToChronoMilliseconds(tick)); - EXPECT_EQ(milliseconds(0), absl::ToChronoMilliseconds(-tick)); - EXPECT_EQ(seconds(0), absl::ToChronoSeconds(tick)); - EXPECT_EQ(seconds(0), absl::ToChronoSeconds(-tick)); - EXPECT_EQ(minutes(0), absl::ToChronoMinutes(tick)); - EXPECT_EQ(minutes(0), absl::ToChronoMinutes(-tick)); - EXPECT_EQ(hours(0), absl::ToChronoHours(tick)); - EXPECT_EQ(hours(0), absl::ToChronoHours(-tick)); - - // Verifies +/- infinity saturation at max/min. - constexpr auto inf = absl::InfiniteDuration(); - EXPECT_EQ(nanoseconds::min(), absl::ToChronoNanoseconds(-inf)); - EXPECT_EQ(nanoseconds::max(), absl::ToChronoNanoseconds(inf)); - EXPECT_EQ(microseconds::min(), absl::ToChronoMicroseconds(-inf)); - EXPECT_EQ(microseconds::max(), absl::ToChronoMicroseconds(inf)); - EXPECT_EQ(milliseconds::min(), absl::ToChronoMilliseconds(-inf)); - EXPECT_EQ(milliseconds::max(), absl::ToChronoMilliseconds(inf)); - EXPECT_EQ(seconds::min(), absl::ToChronoSeconds(-inf)); - EXPECT_EQ(seconds::max(), absl::ToChronoSeconds(inf)); - EXPECT_EQ(minutes::min(), absl::ToChronoMinutes(-inf)); - EXPECT_EQ(minutes::max(), absl::ToChronoMinutes(inf)); - EXPECT_EQ(hours::min(), absl::ToChronoHours(-inf)); - EXPECT_EQ(hours::max(), absl::ToChronoHours(inf)); -} - -TEST(Duration, FactoryOverloads) { - enum E { kOne = 1 }; -#define TEST_FACTORY_OVERLOADS(NAME) \ - EXPECT_EQ(1, NAME(kOne) / NAME(kOne)); \ - EXPECT_EQ(1, NAME(static_cast<int8_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<int16_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<int32_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<int64_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<uint8_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<uint16_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<uint32_t>(1)) / NAME(1)); \ - EXPECT_EQ(1, NAME(static_cast<uint64_t>(1)) / NAME(1)); \ - EXPECT_EQ(NAME(1) / 2, NAME(static_cast<float>(0.5))); \ - EXPECT_EQ(NAME(1) / 2, NAME(static_cast<double>(0.5))); \ - EXPECT_EQ(1.5, absl::FDivDuration(NAME(static_cast<float>(1.5)), NAME(1))); \ - EXPECT_EQ(1.5, absl::FDivDuration(NAME(static_cast<double>(1.5)), NAME(1))); - - TEST_FACTORY_OVERLOADS(absl::Nanoseconds); - TEST_FACTORY_OVERLOADS(absl::Microseconds); - TEST_FACTORY_OVERLOADS(absl::Milliseconds); - TEST_FACTORY_OVERLOADS(absl::Seconds); - TEST_FACTORY_OVERLOADS(absl::Minutes); - TEST_FACTORY_OVERLOADS(absl::Hours); - -#undef TEST_FACTORY_OVERLOADS - - EXPECT_EQ(absl::Milliseconds(1500), absl::Seconds(1.5)); - EXPECT_LT(absl::Nanoseconds(1), absl::Nanoseconds(1.5)); - EXPECT_GT(absl::Nanoseconds(2), absl::Nanoseconds(1.5)); - - const double dbl_inf = std::numeric_limits<double>::infinity(); - EXPECT_EQ(absl::InfiniteDuration(), absl::Nanoseconds(dbl_inf)); - EXPECT_EQ(absl::InfiniteDuration(), absl::Microseconds(dbl_inf)); - EXPECT_EQ(absl::InfiniteDuration(), absl::Milliseconds(dbl_inf)); - EXPECT_EQ(absl::InfiniteDuration(), absl::Seconds(dbl_inf)); - EXPECT_EQ(absl::InfiniteDuration(), absl::Minutes(dbl_inf)); - EXPECT_EQ(absl::InfiniteDuration(), absl::Hours(dbl_inf)); - EXPECT_EQ(-absl::InfiniteDuration(), absl::Nanoseconds(-dbl_inf)); - EXPECT_EQ(-absl::InfiniteDuration(), absl::Microseconds(-dbl_inf)); - EXPECT_EQ(-absl::InfiniteDuration(), absl::Milliseconds(-dbl_inf)); - EXPECT_EQ(-absl::InfiniteDuration(), absl::Seconds(-dbl_inf)); - EXPECT_EQ(-absl::InfiniteDuration(), absl::Minutes(-dbl_inf)); - EXPECT_EQ(-absl::InfiniteDuration(), absl::Hours(-dbl_inf)); -} - -TEST(Duration, InfinityExamples) { - // These examples are used in the documentation in time.h. They are - // written so that they can be copy-n-pasted easily. - - constexpr absl::Duration inf = absl::InfiniteDuration(); - constexpr absl::Duration d = absl::Seconds(1); // Any finite duration - - EXPECT_TRUE(inf == inf + inf); - EXPECT_TRUE(inf == inf + d); - EXPECT_TRUE(inf == inf - inf); - EXPECT_TRUE(-inf == d - inf); - - EXPECT_TRUE(inf == d * 1e100); - EXPECT_TRUE(0 == d / inf); // NOLINT(readability/check) - - // Division by zero returns infinity, or kint64min/MAX where necessary. - EXPECT_TRUE(inf == d / 0); - EXPECT_TRUE(kint64max == d / absl::ZeroDuration()); -} - -TEST(Duration, InfinityComparison) { - const absl::Duration inf = absl::InfiniteDuration(); - const absl::Duration any_dur = absl::Seconds(1); - - // Equality - EXPECT_EQ(inf, inf); - EXPECT_EQ(-inf, -inf); - EXPECT_NE(inf, -inf); - EXPECT_NE(any_dur, inf); - EXPECT_NE(any_dur, -inf); - - // Relational - EXPECT_GT(inf, any_dur); - EXPECT_LT(-inf, any_dur); - EXPECT_LT(-inf, inf); - EXPECT_GT(inf, -inf); -} - -TEST(Duration, InfinityAddition) { - const absl::Duration sec_max = absl::Seconds(kint64max); - const absl::Duration sec_min = absl::Seconds(kint64min); - const absl::Duration any_dur = absl::Seconds(1); - const absl::Duration inf = absl::InfiniteDuration(); - - // Addition - EXPECT_EQ(inf, inf + inf); - EXPECT_EQ(inf, inf + -inf); - EXPECT_EQ(-inf, -inf + inf); - EXPECT_EQ(-inf, -inf + -inf); - - EXPECT_EQ(inf, inf + any_dur); - EXPECT_EQ(inf, any_dur + inf); - EXPECT_EQ(-inf, -inf + any_dur); - EXPECT_EQ(-inf, any_dur + -inf); - - // Interesting case - absl::Duration almost_inf = sec_max + absl::Nanoseconds(999999999); - EXPECT_GT(inf, almost_inf); - almost_inf += -absl::Nanoseconds(999999999); - EXPECT_GT(inf, almost_inf); - - // Addition overflow/underflow - EXPECT_EQ(inf, sec_max + absl::Seconds(1)); - EXPECT_EQ(inf, sec_max + sec_max); - EXPECT_EQ(-inf, sec_min + -absl::Seconds(1)); - EXPECT_EQ(-inf, sec_min + -sec_max); - - // For reference: IEEE 754 behavior - const double dbl_inf = std::numeric_limits<double>::infinity(); - EXPECT_TRUE(std::isinf(dbl_inf + dbl_inf)); - EXPECT_TRUE(std::isnan(dbl_inf + -dbl_inf)); // We return inf - EXPECT_TRUE(std::isnan(-dbl_inf + dbl_inf)); // We return inf - EXPECT_TRUE(std::isinf(-dbl_inf + -dbl_inf)); -} - -TEST(Duration, InfinitySubtraction) { - const absl::Duration sec_max = absl::Seconds(kint64max); - const absl::Duration sec_min = absl::Seconds(kint64min); - const absl::Duration any_dur = absl::Seconds(1); - const absl::Duration inf = absl::InfiniteDuration(); - - // Subtraction - EXPECT_EQ(inf, inf - inf); - EXPECT_EQ(inf, inf - -inf); - EXPECT_EQ(-inf, -inf - inf); - EXPECT_EQ(-inf, -inf - -inf); - - EXPECT_EQ(inf, inf - any_dur); - EXPECT_EQ(-inf, any_dur - inf); - EXPECT_EQ(-inf, -inf - any_dur); - EXPECT_EQ(inf, any_dur - -inf); - - // Subtraction overflow/underflow - EXPECT_EQ(inf, sec_max - -absl::Seconds(1)); - EXPECT_EQ(inf, sec_max - -sec_max); - EXPECT_EQ(-inf, sec_min - absl::Seconds(1)); - EXPECT_EQ(-inf, sec_min - sec_max); - - // Interesting case - absl::Duration almost_neg_inf = sec_min; - EXPECT_LT(-inf, almost_neg_inf); - almost_neg_inf -= -absl::Nanoseconds(1); - EXPECT_LT(-inf, almost_neg_inf); - - // For reference: IEEE 754 behavior - const double dbl_inf = std::numeric_limits<double>::infinity(); - EXPECT_TRUE(std::isnan(dbl_inf - dbl_inf)); // We return inf - EXPECT_TRUE(std::isinf(dbl_inf - -dbl_inf)); - EXPECT_TRUE(std::isinf(-dbl_inf - dbl_inf)); - EXPECT_TRUE(std::isnan(-dbl_inf - -dbl_inf)); // We return inf -} - -TEST(Duration, InfinityMultiplication) { - const absl::Duration sec_max = absl::Seconds(kint64max); - const absl::Duration sec_min = absl::Seconds(kint64min); - const absl::Duration inf = absl::InfiniteDuration(); - -#define TEST_INF_MUL_WITH_TYPE(T) \ - EXPECT_EQ(inf, inf * static_cast<T>(2)); \ - EXPECT_EQ(-inf, inf * static_cast<T>(-2)); \ - EXPECT_EQ(-inf, -inf * static_cast<T>(2)); \ - EXPECT_EQ(inf, -inf * static_cast<T>(-2)); \ - EXPECT_EQ(inf, inf * static_cast<T>(0)); \ - EXPECT_EQ(-inf, -inf * static_cast<T>(0)); \ - EXPECT_EQ(inf, sec_max * static_cast<T>(2)); \ - EXPECT_EQ(inf, sec_min * static_cast<T>(-2)); \ - EXPECT_EQ(inf, (sec_max / static_cast<T>(2)) * static_cast<T>(3)); \ - EXPECT_EQ(-inf, sec_max * static_cast<T>(-2)); \ - EXPECT_EQ(-inf, sec_min * static_cast<T>(2)); \ - EXPECT_EQ(-inf, (sec_min / static_cast<T>(2)) * static_cast<T>(3)); - - TEST_INF_MUL_WITH_TYPE(int64_t); // NOLINT(readability/function) - TEST_INF_MUL_WITH_TYPE(double); // NOLINT(readability/function) - -#undef TEST_INF_MUL_WITH_TYPE - - const double dbl_inf = std::numeric_limits<double>::infinity(); - EXPECT_EQ(inf, inf * dbl_inf); - EXPECT_EQ(-inf, -inf * dbl_inf); - EXPECT_EQ(-inf, inf * -dbl_inf); - EXPECT_EQ(inf, -inf * -dbl_inf); - - const absl::Duration any_dur = absl::Seconds(1); - EXPECT_EQ(inf, any_dur * dbl_inf); - EXPECT_EQ(-inf, -any_dur * dbl_inf); - EXPECT_EQ(-inf, any_dur * -dbl_inf); - EXPECT_EQ(inf, -any_dur * -dbl_inf); - - // Fixed-point multiplication will produce a finite value, whereas floating - // point fuzziness will overflow to inf. - EXPECT_NE(absl::InfiniteDuration(), absl::Seconds(1) * kint64max); - EXPECT_EQ(inf, absl::Seconds(1) * static_cast<double>(kint64max)); - EXPECT_NE(-absl::InfiniteDuration(), absl::Seconds(1) * kint64min); - EXPECT_EQ(-inf, absl::Seconds(1) * static_cast<double>(kint64min)); - - // Note that sec_max * or / by 1.0 overflows to inf due to the 53-bit - // limitations of double. - EXPECT_NE(inf, sec_max); - EXPECT_NE(inf, sec_max / 1); - EXPECT_EQ(inf, sec_max / 1.0); - EXPECT_NE(inf, sec_max * 1); - EXPECT_EQ(inf, sec_max * 1.0); -} - -TEST(Duration, InfinityDivision) { - const absl::Duration sec_max = absl::Seconds(kint64max); - const absl::Duration sec_min = absl::Seconds(kint64min); - const absl::Duration inf = absl::InfiniteDuration(); - - // Division of Duration by a double -#define TEST_INF_DIV_WITH_TYPE(T) \ - EXPECT_EQ(inf, inf / static_cast<T>(2)); \ - EXPECT_EQ(-inf, inf / static_cast<T>(-2)); \ - EXPECT_EQ(-inf, -inf / static_cast<T>(2)); \ - EXPECT_EQ(inf, -inf / static_cast<T>(-2)); - - TEST_INF_DIV_WITH_TYPE(int64_t); // NOLINT(readability/function) - TEST_INF_DIV_WITH_TYPE(double); // NOLINT(readability/function) - -#undef TEST_INF_DIV_WITH_TYPE - - // Division of Duration by a double overflow/underflow - EXPECT_EQ(inf, sec_max / 0.5); - EXPECT_EQ(inf, sec_min / -0.5); - EXPECT_EQ(inf, ((sec_max / 0.5) + absl::Seconds(1)) / 0.5); - EXPECT_EQ(-inf, sec_max / -0.5); - EXPECT_EQ(-inf, sec_min / 0.5); - EXPECT_EQ(-inf, ((sec_min / 0.5) - absl::Seconds(1)) / 0.5); - - const double dbl_inf = std::numeric_limits<double>::infinity(); - EXPECT_EQ(inf, inf / dbl_inf); - EXPECT_EQ(-inf, inf / -dbl_inf); - EXPECT_EQ(-inf, -inf / dbl_inf); - EXPECT_EQ(inf, -inf / -dbl_inf); - - const absl::Duration any_dur = absl::Seconds(1); - EXPECT_EQ(absl::ZeroDuration(), any_dur / dbl_inf); - EXPECT_EQ(absl::ZeroDuration(), any_dur / -dbl_inf); - EXPECT_EQ(absl::ZeroDuration(), -any_dur / dbl_inf); - EXPECT_EQ(absl::ZeroDuration(), -any_dur / -dbl_inf); -} - -TEST(Duration, InfinityModulus) { - const absl::Duration sec_max = absl::Seconds(kint64max); - const absl::Duration any_dur = absl::Seconds(1); - const absl::Duration inf = absl::InfiniteDuration(); - - EXPECT_EQ(inf, inf % inf); - EXPECT_EQ(inf, inf % -inf); - EXPECT_EQ(-inf, -inf % -inf); - EXPECT_EQ(-inf, -inf % inf); - - EXPECT_EQ(any_dur, any_dur % inf); - EXPECT_EQ(any_dur, any_dur % -inf); - EXPECT_EQ(-any_dur, -any_dur % inf); - EXPECT_EQ(-any_dur, -any_dur % -inf); - - EXPECT_EQ(inf, inf % -any_dur); - EXPECT_EQ(inf, inf % any_dur); - EXPECT_EQ(-inf, -inf % -any_dur); - EXPECT_EQ(-inf, -inf % any_dur); - - // Remainder isn't affected by overflow. - EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Seconds(1)); - EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Milliseconds(1)); - EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Microseconds(1)); - EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Nanoseconds(1)); - EXPECT_EQ(absl::ZeroDuration(), sec_max % absl::Nanoseconds(1) / 4); -} - -TEST(Duration, InfinityIDiv) { - const absl::Duration sec_max = absl::Seconds(kint64max); - const absl::Duration any_dur = absl::Seconds(1); - const absl::Duration inf = absl::InfiniteDuration(); - const double dbl_inf = std::numeric_limits<double>::infinity(); - - // IDivDuration (int64_t return value + a remainer) - absl::Duration rem = absl::ZeroDuration(); - EXPECT_EQ(kint64max, absl::IDivDuration(inf, inf, &rem)); - EXPECT_EQ(inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64max, absl::IDivDuration(-inf, -inf, &rem)); - EXPECT_EQ(-inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64max, absl::IDivDuration(inf, any_dur, &rem)); - EXPECT_EQ(inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(0, absl::IDivDuration(any_dur, inf, &rem)); - EXPECT_EQ(any_dur, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64max, absl::IDivDuration(-inf, -any_dur, &rem)); - EXPECT_EQ(-inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(0, absl::IDivDuration(-any_dur, -inf, &rem)); - EXPECT_EQ(-any_dur, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64min, absl::IDivDuration(-inf, inf, &rem)); - EXPECT_EQ(-inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64min, absl::IDivDuration(inf, -inf, &rem)); - EXPECT_EQ(inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64min, absl::IDivDuration(-inf, any_dur, &rem)); - EXPECT_EQ(-inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(0, absl::IDivDuration(-any_dur, inf, &rem)); - EXPECT_EQ(-any_dur, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(kint64min, absl::IDivDuration(inf, -any_dur, &rem)); - EXPECT_EQ(inf, rem); - - rem = absl::ZeroDuration(); - EXPECT_EQ(0, absl::IDivDuration(any_dur, -inf, &rem)); - EXPECT_EQ(any_dur, rem); - - // IDivDuration overflow/underflow - rem = any_dur; - EXPECT_EQ(kint64max, - absl::IDivDuration(sec_max, absl::Nanoseconds(1) / 4, &rem)); - EXPECT_EQ(sec_max - absl::Nanoseconds(kint64max) / 4, rem); - - rem = any_dur; - EXPECT_EQ(kint64max, - absl::IDivDuration(sec_max, absl::Milliseconds(1), &rem)); - EXPECT_EQ(sec_max - absl::Milliseconds(kint64max), rem); - - rem = any_dur; - EXPECT_EQ(kint64max, - absl::IDivDuration(-sec_max, -absl::Milliseconds(1), &rem)); - EXPECT_EQ(-sec_max + absl::Milliseconds(kint64max), rem); - - rem = any_dur; - EXPECT_EQ(kint64min, - absl::IDivDuration(-sec_max, absl::Milliseconds(1), &rem)); - EXPECT_EQ(-sec_max - absl::Milliseconds(kint64min), rem); - - rem = any_dur; - EXPECT_EQ(kint64min, - absl::IDivDuration(sec_max, -absl::Milliseconds(1), &rem)); - EXPECT_EQ(sec_max + absl::Milliseconds(kint64min), rem); - - // - // operator/(Duration, Duration) is a wrapper for IDivDuration(). - // - - // IEEE 754 says inf / inf should be nan, but int64_t doesn't have - // nan so we'll return kint64max/kint64min instead. - EXPECT_TRUE(std::isnan(dbl_inf / dbl_inf)); - EXPECT_EQ(kint64max, inf / inf); - EXPECT_EQ(kint64max, -inf / -inf); - EXPECT_EQ(kint64min, -inf / inf); - EXPECT_EQ(kint64min, inf / -inf); - - EXPECT_TRUE(std::isinf(dbl_inf / 2.0)); - EXPECT_EQ(kint64max, inf / any_dur); - EXPECT_EQ(kint64max, -inf / -any_dur); - EXPECT_EQ(kint64min, -inf / any_dur); - EXPECT_EQ(kint64min, inf / -any_dur); - - EXPECT_EQ(0.0, 2.0 / dbl_inf); - EXPECT_EQ(0, any_dur / inf); - EXPECT_EQ(0, any_dur / -inf); - EXPECT_EQ(0, -any_dur / inf); - EXPECT_EQ(0, -any_dur / -inf); - EXPECT_EQ(0, absl::ZeroDuration() / inf); - - // Division of Duration by a Duration overflow/underflow - EXPECT_EQ(kint64max, sec_max / absl::Milliseconds(1)); - EXPECT_EQ(kint64max, -sec_max / -absl::Milliseconds(1)); - EXPECT_EQ(kint64min, -sec_max / absl::Milliseconds(1)); - EXPECT_EQ(kint64min, sec_max / -absl::Milliseconds(1)); -} - -TEST(Duration, InfinityFDiv) { - const absl::Duration any_dur = absl::Seconds(1); - const absl::Duration inf = absl::InfiniteDuration(); - const double dbl_inf = std::numeric_limits<double>::infinity(); - - EXPECT_EQ(dbl_inf, absl::FDivDuration(inf, inf)); - EXPECT_EQ(dbl_inf, absl::FDivDuration(-inf, -inf)); - EXPECT_EQ(dbl_inf, absl::FDivDuration(inf, any_dur)); - EXPECT_EQ(0.0, absl::FDivDuration(any_dur, inf)); - EXPECT_EQ(dbl_inf, absl::FDivDuration(-inf, -any_dur)); - EXPECT_EQ(0.0, absl::FDivDuration(-any_dur, -inf)); - - EXPECT_EQ(-dbl_inf, absl::FDivDuration(-inf, inf)); - EXPECT_EQ(-dbl_inf, absl::FDivDuration(inf, -inf)); - EXPECT_EQ(-dbl_inf, absl::FDivDuration(-inf, any_dur)); - EXPECT_EQ(0.0, absl::FDivDuration(-any_dur, inf)); - EXPECT_EQ(-dbl_inf, absl::FDivDuration(inf, -any_dur)); - EXPECT_EQ(0.0, absl::FDivDuration(any_dur, -inf)); -} - -TEST(Duration, DivisionByZero) { - const absl::Duration zero = absl::ZeroDuration(); - const absl::Duration inf = absl::InfiniteDuration(); - const absl::Duration any_dur = absl::Seconds(1); - const double dbl_inf = std::numeric_limits<double>::infinity(); - const double dbl_denorm = std::numeric_limits<double>::denorm_min(); - - // Operator/(Duration, double) - EXPECT_EQ(inf, zero / 0.0); - EXPECT_EQ(-inf, zero / -0.0); - EXPECT_EQ(inf, any_dur / 0.0); - EXPECT_EQ(-inf, any_dur / -0.0); - EXPECT_EQ(-inf, -any_dur / 0.0); - EXPECT_EQ(inf, -any_dur / -0.0); - - // Tests dividing by a number very close to, but not quite zero. - EXPECT_EQ(zero, zero / dbl_denorm); - EXPECT_EQ(zero, zero / -dbl_denorm); - EXPECT_EQ(inf, any_dur / dbl_denorm); - EXPECT_EQ(-inf, any_dur / -dbl_denorm); - EXPECT_EQ(-inf, -any_dur / dbl_denorm); - EXPECT_EQ(inf, -any_dur / -dbl_denorm); - - // IDiv - absl::Duration rem = zero; - EXPECT_EQ(kint64max, absl::IDivDuration(zero, zero, &rem)); - EXPECT_EQ(inf, rem); - - rem = zero; - EXPECT_EQ(kint64max, absl::IDivDuration(any_dur, zero, &rem)); - EXPECT_EQ(inf, rem); - - rem = zero; - EXPECT_EQ(kint64min, absl::IDivDuration(-any_dur, zero, &rem)); - EXPECT_EQ(-inf, rem); - - // Operator/(Duration, Duration) - EXPECT_EQ(kint64max, zero / zero); - EXPECT_EQ(kint64max, any_dur / zero); - EXPECT_EQ(kint64min, -any_dur / zero); - - // FDiv - EXPECT_EQ(dbl_inf, absl::FDivDuration(zero, zero)); - EXPECT_EQ(dbl_inf, absl::FDivDuration(any_dur, zero)); - EXPECT_EQ(-dbl_inf, absl::FDivDuration(-any_dur, zero)); -} - -TEST(Duration, NaN) { - // Note that IEEE 754 does not define the behavior of a nan's sign when it is - // copied, so the code below allows for either + or - InfiniteDuration. -#define TEST_NAN_HANDLING(NAME, NAN) \ - do { \ - const auto inf = absl::InfiniteDuration(); \ - auto x = NAME(NAN); \ - EXPECT_TRUE(x == inf || x == -inf); \ - auto y = NAME(42); \ - y *= NAN; \ - EXPECT_TRUE(y == inf || y == -inf); \ - auto z = NAME(42); \ - z /= NAN; \ - EXPECT_TRUE(z == inf || z == -inf); \ - } while (0) - - const double nan = std::numeric_limits<double>::quiet_NaN(); - TEST_NAN_HANDLING(absl::Nanoseconds, nan); - TEST_NAN_HANDLING(absl::Microseconds, nan); - TEST_NAN_HANDLING(absl::Milliseconds, nan); - TEST_NAN_HANDLING(absl::Seconds, nan); - TEST_NAN_HANDLING(absl::Minutes, nan); - TEST_NAN_HANDLING(absl::Hours, nan); - - TEST_NAN_HANDLING(absl::Nanoseconds, -nan); - TEST_NAN_HANDLING(absl::Microseconds, -nan); - TEST_NAN_HANDLING(absl::Milliseconds, -nan); - TEST_NAN_HANDLING(absl::Seconds, -nan); - TEST_NAN_HANDLING(absl::Minutes, -nan); - TEST_NAN_HANDLING(absl::Hours, -nan); - -#undef TEST_NAN_HANDLING -} - -TEST(Duration, Range) { - const absl::Duration range = ApproxYears(100 * 1e9); - const absl::Duration range_future = range; - const absl::Duration range_past = -range; - - EXPECT_LT(range_future, absl::InfiniteDuration()); - EXPECT_GT(range_past, -absl::InfiniteDuration()); - - const absl::Duration full_range = range_future - range_past; - EXPECT_GT(full_range, absl::ZeroDuration()); - EXPECT_LT(full_range, absl::InfiniteDuration()); - - const absl::Duration neg_full_range = range_past - range_future; - EXPECT_LT(neg_full_range, absl::ZeroDuration()); - EXPECT_GT(neg_full_range, -absl::InfiniteDuration()); - - EXPECT_LT(neg_full_range, full_range); - EXPECT_EQ(neg_full_range, -full_range); -} - -TEST(Duration, RelationalOperators) { -#define TEST_REL_OPS(UNIT) \ - static_assert(UNIT(2) == UNIT(2), ""); \ - static_assert(UNIT(1) != UNIT(2), ""); \ - static_assert(UNIT(1) < UNIT(2), ""); \ - static_assert(UNIT(3) > UNIT(2), ""); \ - static_assert(UNIT(1) <= UNIT(2), ""); \ - static_assert(UNIT(2) <= UNIT(2), ""); \ - static_assert(UNIT(3) >= UNIT(2), ""); \ - static_assert(UNIT(2) >= UNIT(2), ""); - - TEST_REL_OPS(absl::Nanoseconds); - TEST_REL_OPS(absl::Microseconds); - TEST_REL_OPS(absl::Milliseconds); - TEST_REL_OPS(absl::Seconds); - TEST_REL_OPS(absl::Minutes); - TEST_REL_OPS(absl::Hours); - -#undef TEST_REL_OPS -} - -TEST(Duration, Addition) { -#define TEST_ADD_OPS(UNIT) \ - do { \ - EXPECT_EQ(UNIT(2), UNIT(1) + UNIT(1)); \ - EXPECT_EQ(UNIT(1), UNIT(2) - UNIT(1)); \ - EXPECT_EQ(UNIT(0), UNIT(2) - UNIT(2)); \ - EXPECT_EQ(UNIT(-1), UNIT(1) - UNIT(2)); \ - EXPECT_EQ(UNIT(-2), UNIT(0) - UNIT(2)); \ - EXPECT_EQ(UNIT(-2), UNIT(1) - UNIT(3)); \ - absl::Duration a = UNIT(1); \ - a += UNIT(1); \ - EXPECT_EQ(UNIT(2), a); \ - a -= UNIT(1); \ - EXPECT_EQ(UNIT(1), a); \ - } while (0) - - TEST_ADD_OPS(absl::Nanoseconds); - TEST_ADD_OPS(absl::Microseconds); - TEST_ADD_OPS(absl::Milliseconds); - TEST_ADD_OPS(absl::Seconds); - TEST_ADD_OPS(absl::Minutes); - TEST_ADD_OPS(absl::Hours); - -#undef TEST_ADD_OPS - - EXPECT_EQ(absl::Seconds(2), absl::Seconds(3) - 2 * absl::Milliseconds(500)); - EXPECT_EQ(absl::Seconds(2) + absl::Milliseconds(500), - absl::Seconds(3) - absl::Milliseconds(500)); - - EXPECT_EQ(absl::Seconds(1) + absl::Milliseconds(998), - absl::Milliseconds(999) + absl::Milliseconds(999)); - - EXPECT_EQ(absl::Milliseconds(-1), - absl::Milliseconds(998) - absl::Milliseconds(999)); - - // Tests fractions of a nanoseconds. These are implementation details only. - EXPECT_GT(absl::Nanoseconds(1), absl::Nanoseconds(1) / 2); - EXPECT_EQ(absl::Nanoseconds(1), - absl::Nanoseconds(1) / 2 + absl::Nanoseconds(1) / 2); - EXPECT_GT(absl::Nanoseconds(1) / 4, absl::Nanoseconds(0)); - EXPECT_EQ(absl::Nanoseconds(1) / 8, absl::Nanoseconds(0)); - - // Tests subtraction that will cause wrap around of the rep_lo_ bits. - absl::Duration d_7_5 = absl::Seconds(7) + absl::Milliseconds(500); - absl::Duration d_3_7 = absl::Seconds(3) + absl::Milliseconds(700); - absl::Duration ans_3_8 = absl::Seconds(3) + absl::Milliseconds(800); - EXPECT_EQ(ans_3_8, d_7_5 - d_3_7); - - // Subtracting min_duration - absl::Duration min_dur = absl::Seconds(kint64min); - EXPECT_EQ(absl::Seconds(0), min_dur - min_dur); - EXPECT_EQ(absl::Seconds(kint64max), absl::Seconds(-1) - min_dur); -} - -TEST(Duration, Negation) { - // By storing negations of various values in constexpr variables we - // verify that the initializers are constant expressions. - constexpr absl::Duration negated_zero_duration = -absl::ZeroDuration(); - EXPECT_EQ(negated_zero_duration, absl::ZeroDuration()); - - constexpr absl::Duration negated_infinite_duration = - -absl::InfiniteDuration(); - EXPECT_NE(negated_infinite_duration, absl::InfiniteDuration()); - EXPECT_EQ(-negated_infinite_duration, absl::InfiniteDuration()); - - // The public APIs to check if a duration is infinite depend on using - // -InfiniteDuration(), but we're trying to test operator- here, so we - // need to use the lower-level internal query IsInfiniteDuration. - EXPECT_TRUE( - absl::time_internal::IsInfiniteDuration(negated_infinite_duration)); - - // The largest Duration is kint64max seconds and kTicksPerSecond - 1 ticks. - // Using the absl::time_internal::MakeDuration API is the cleanest way to - // construct that Duration. - constexpr absl::Duration max_duration = absl::time_internal::MakeDuration( - kint64max, absl::time_internal::kTicksPerSecond - 1); - constexpr absl::Duration negated_max_duration = -max_duration; - // The largest negatable value is one tick above the minimum representable; - // it's the negation of max_duration. - constexpr absl::Duration nearly_min_duration = - absl::time_internal::MakeDuration(kint64min, int64_t{1}); - constexpr absl::Duration negated_nearly_min_duration = -nearly_min_duration; - - EXPECT_EQ(negated_max_duration, nearly_min_duration); - EXPECT_EQ(negated_nearly_min_duration, max_duration); - EXPECT_EQ(-(-max_duration), max_duration); - - constexpr absl::Duration min_duration = - absl::time_internal::MakeDuration(kint64min); - constexpr absl::Duration negated_min_duration = -min_duration; - EXPECT_EQ(negated_min_duration, absl::InfiniteDuration()); -} - -TEST(Duration, AbsoluteValue) { - EXPECT_EQ(absl::ZeroDuration(), AbsDuration(absl::ZeroDuration())); - EXPECT_EQ(absl::Seconds(1), AbsDuration(absl::Seconds(1))); - EXPECT_EQ(absl::Seconds(1), AbsDuration(absl::Seconds(-1))); - - EXPECT_EQ(absl::InfiniteDuration(), AbsDuration(absl::InfiniteDuration())); - EXPECT_EQ(absl::InfiniteDuration(), AbsDuration(-absl::InfiniteDuration())); - - absl::Duration max_dur = - absl::Seconds(kint64max) + (absl::Seconds(1) - absl::Nanoseconds(1) / 4); - EXPECT_EQ(max_dur, AbsDuration(max_dur)); - - absl::Duration min_dur = absl::Seconds(kint64min); - EXPECT_EQ(absl::InfiniteDuration(), AbsDuration(min_dur)); - EXPECT_EQ(max_dur, AbsDuration(min_dur + absl::Nanoseconds(1) / 4)); -} - -TEST(Duration, Multiplication) { -#define TEST_MUL_OPS(UNIT) \ - do { \ - EXPECT_EQ(UNIT(5), UNIT(2) * 2.5); \ - EXPECT_EQ(UNIT(2), UNIT(5) / 2.5); \ - EXPECT_EQ(UNIT(-5), UNIT(-2) * 2.5); \ - EXPECT_EQ(UNIT(-5), -UNIT(2) * 2.5); \ - EXPECT_EQ(UNIT(-5), UNIT(2) * -2.5); \ - EXPECT_EQ(UNIT(-2), UNIT(-5) / 2.5); \ - EXPECT_EQ(UNIT(-2), -UNIT(5) / 2.5); \ - EXPECT_EQ(UNIT(-2), UNIT(5) / -2.5); \ - EXPECT_EQ(UNIT(2), UNIT(11) % UNIT(3)); \ - absl::Duration a = UNIT(2); \ - a *= 2.5; \ - EXPECT_EQ(UNIT(5), a); \ - a /= 2.5; \ - EXPECT_EQ(UNIT(2), a); \ - a %= UNIT(1); \ - EXPECT_EQ(UNIT(0), a); \ - absl::Duration big = UNIT(1000000000); \ - big *= 3; \ - big /= 3; \ - EXPECT_EQ(UNIT(1000000000), big); \ - EXPECT_EQ(-UNIT(2), -UNIT(2)); \ - EXPECT_EQ(-UNIT(2), UNIT(2) * -1); \ - EXPECT_EQ(-UNIT(2), -1 * UNIT(2)); \ - EXPECT_EQ(-UNIT(-2), UNIT(2)); \ - EXPECT_EQ(2, UNIT(2) / UNIT(1)); \ - absl::Duration rem; \ - EXPECT_EQ(2, absl::IDivDuration(UNIT(2), UNIT(1), &rem)); \ - EXPECT_EQ(2.0, absl::FDivDuration(UNIT(2), UNIT(1))); \ - } while (0) - - TEST_MUL_OPS(absl::Nanoseconds); - TEST_MUL_OPS(absl::Microseconds); - TEST_MUL_OPS(absl::Milliseconds); - TEST_MUL_OPS(absl::Seconds); - TEST_MUL_OPS(absl::Minutes); - TEST_MUL_OPS(absl::Hours); - -#undef TEST_MUL_OPS - - // Ensures that multiplication and division by 1 with a maxed-out durations - // doesn't lose precision. - absl::Duration max_dur = - absl::Seconds(kint64max) + (absl::Seconds(1) - absl::Nanoseconds(1) / 4); - absl::Duration min_dur = absl::Seconds(kint64min); - EXPECT_EQ(max_dur, max_dur * 1); - EXPECT_EQ(max_dur, max_dur / 1); - EXPECT_EQ(min_dur, min_dur * 1); - EXPECT_EQ(min_dur, min_dur / 1); - - // Tests division on a Duration with a large number of significant digits. - // Tests when the digits span hi and lo as well as only in hi. - absl::Duration sigfigs = absl::Seconds(2000000000) + absl::Nanoseconds(3); - EXPECT_EQ(absl::Seconds(666666666) + absl::Nanoseconds(666666667) + - absl::Nanoseconds(1) / 2, - sigfigs / 3); - sigfigs = absl::Seconds(int64_t{7000000000}); - EXPECT_EQ(absl::Seconds(2333333333) + absl::Nanoseconds(333333333) + - absl::Nanoseconds(1) / 4, - sigfigs / 3); - - EXPECT_EQ(absl::Seconds(7) + absl::Milliseconds(500), absl::Seconds(3) * 2.5); - EXPECT_EQ(absl::Seconds(8) * -1 + absl::Milliseconds(300), - (absl::Seconds(2) + absl::Milliseconds(200)) * -3.5); - EXPECT_EQ(-absl::Seconds(8) + absl::Milliseconds(300), - (absl::Seconds(2) + absl::Milliseconds(200)) * -3.5); - EXPECT_EQ(absl::Seconds(1) + absl::Milliseconds(875), - (absl::Seconds(7) + absl::Milliseconds(500)) / 4); - EXPECT_EQ(absl::Seconds(30), - (absl::Seconds(7) + absl::Milliseconds(500)) / 0.25); - EXPECT_EQ(absl::Seconds(3), - (absl::Seconds(7) + absl::Milliseconds(500)) / 2.5); - - // Tests division remainder. - EXPECT_EQ(absl::Nanoseconds(0), absl::Nanoseconds(7) % absl::Nanoseconds(1)); - EXPECT_EQ(absl::Nanoseconds(0), absl::Nanoseconds(0) % absl::Nanoseconds(10)); - EXPECT_EQ(absl::Nanoseconds(2), absl::Nanoseconds(7) % absl::Nanoseconds(5)); - EXPECT_EQ(absl::Nanoseconds(2), absl::Nanoseconds(2) % absl::Nanoseconds(5)); - - EXPECT_EQ(absl::Nanoseconds(1), absl::Nanoseconds(10) % absl::Nanoseconds(3)); - EXPECT_EQ(absl::Nanoseconds(1), - absl::Nanoseconds(10) % absl::Nanoseconds(-3)); - EXPECT_EQ(absl::Nanoseconds(-1), - absl::Nanoseconds(-10) % absl::Nanoseconds(3)); - EXPECT_EQ(absl::Nanoseconds(-1), - absl::Nanoseconds(-10) % absl::Nanoseconds(-3)); - - EXPECT_EQ(absl::Milliseconds(100), - absl::Seconds(1) % absl::Milliseconds(300)); - EXPECT_EQ( - absl::Milliseconds(300), - (absl::Seconds(3) + absl::Milliseconds(800)) % absl::Milliseconds(500)); - - EXPECT_EQ(absl::Nanoseconds(1), absl::Nanoseconds(1) % absl::Seconds(1)); - EXPECT_EQ(absl::Nanoseconds(-1), absl::Nanoseconds(-1) % absl::Seconds(1)); - EXPECT_EQ(0, absl::Nanoseconds(-1) / absl::Seconds(1)); // Actual -1e-9 - - // Tests identity a = (a/b)*b + a%b -#define TEST_MOD_IDENTITY(a, b) \ - EXPECT_EQ((a), ((a) / (b))*(b) + ((a)%(b))) - - TEST_MOD_IDENTITY(absl::Seconds(0), absl::Seconds(2)); - TEST_MOD_IDENTITY(absl::Seconds(1), absl::Seconds(1)); - TEST_MOD_IDENTITY(absl::Seconds(1), absl::Seconds(2)); - TEST_MOD_IDENTITY(absl::Seconds(2), absl::Seconds(1)); - - TEST_MOD_IDENTITY(absl::Seconds(-2), absl::Seconds(1)); - TEST_MOD_IDENTITY(absl::Seconds(2), absl::Seconds(-1)); - TEST_MOD_IDENTITY(absl::Seconds(-2), absl::Seconds(-1)); - - TEST_MOD_IDENTITY(absl::Nanoseconds(0), absl::Nanoseconds(2)); - TEST_MOD_IDENTITY(absl::Nanoseconds(1), absl::Nanoseconds(1)); - TEST_MOD_IDENTITY(absl::Nanoseconds(1), absl::Nanoseconds(2)); - TEST_MOD_IDENTITY(absl::Nanoseconds(2), absl::Nanoseconds(1)); - - TEST_MOD_IDENTITY(absl::Nanoseconds(-2), absl::Nanoseconds(1)); - TEST_MOD_IDENTITY(absl::Nanoseconds(2), absl::Nanoseconds(-1)); - TEST_MOD_IDENTITY(absl::Nanoseconds(-2), absl::Nanoseconds(-1)); - - // Mixed seconds + subseconds - absl::Duration mixed_a = absl::Seconds(1) + absl::Nanoseconds(2); - absl::Duration mixed_b = absl::Seconds(1) + absl::Nanoseconds(3); - - TEST_MOD_IDENTITY(absl::Seconds(0), mixed_a); - TEST_MOD_IDENTITY(mixed_a, mixed_a); - TEST_MOD_IDENTITY(mixed_a, mixed_b); - TEST_MOD_IDENTITY(mixed_b, mixed_a); - - TEST_MOD_IDENTITY(-mixed_a, mixed_b); - TEST_MOD_IDENTITY(mixed_a, -mixed_b); - TEST_MOD_IDENTITY(-mixed_a, -mixed_b); - -#undef TEST_MOD_IDENTITY -} - -TEST(Duration, Truncation) { - const absl::Duration d = absl::Nanoseconds(1234567890); - const absl::Duration inf = absl::InfiniteDuration(); - for (int unit_sign : {1, -1}) { // sign shouldn't matter - EXPECT_EQ(absl::Nanoseconds(1234567890), - Trunc(d, unit_sign * absl::Nanoseconds(1))); - EXPECT_EQ(absl::Microseconds(1234567), - Trunc(d, unit_sign * absl::Microseconds(1))); - EXPECT_EQ(absl::Milliseconds(1234), - Trunc(d, unit_sign * absl::Milliseconds(1))); - EXPECT_EQ(absl::Seconds(1), Trunc(d, unit_sign * absl::Seconds(1))); - EXPECT_EQ(inf, Trunc(inf, unit_sign * absl::Seconds(1))); - - EXPECT_EQ(absl::Nanoseconds(-1234567890), - Trunc(-d, unit_sign * absl::Nanoseconds(1))); - EXPECT_EQ(absl::Microseconds(-1234567), - Trunc(-d, unit_sign * absl::Microseconds(1))); - EXPECT_EQ(absl::Milliseconds(-1234), - Trunc(-d, unit_sign * absl::Milliseconds(1))); - EXPECT_EQ(absl::Seconds(-1), Trunc(-d, unit_sign * absl::Seconds(1))); - EXPECT_EQ(-inf, Trunc(-inf, unit_sign * absl::Seconds(1))); - } -} - -TEST(Duration, Flooring) { - const absl::Duration d = absl::Nanoseconds(1234567890); - const absl::Duration inf = absl::InfiniteDuration(); - for (int unit_sign : {1, -1}) { // sign shouldn't matter - EXPECT_EQ(absl::Nanoseconds(1234567890), - absl::Floor(d, unit_sign * absl::Nanoseconds(1))); - EXPECT_EQ(absl::Microseconds(1234567), - absl::Floor(d, unit_sign * absl::Microseconds(1))); - EXPECT_EQ(absl::Milliseconds(1234), - absl::Floor(d, unit_sign * absl::Milliseconds(1))); - EXPECT_EQ(absl::Seconds(1), absl::Floor(d, unit_sign * absl::Seconds(1))); - EXPECT_EQ(inf, absl::Floor(inf, unit_sign * absl::Seconds(1))); - - EXPECT_EQ(absl::Nanoseconds(-1234567890), - absl::Floor(-d, unit_sign * absl::Nanoseconds(1))); - EXPECT_EQ(absl::Microseconds(-1234568), - absl::Floor(-d, unit_sign * absl::Microseconds(1))); - EXPECT_EQ(absl::Milliseconds(-1235), - absl::Floor(-d, unit_sign * absl::Milliseconds(1))); - EXPECT_EQ(absl::Seconds(-2), absl::Floor(-d, unit_sign * absl::Seconds(1))); - EXPECT_EQ(-inf, absl::Floor(-inf, unit_sign * absl::Seconds(1))); - } -} - -TEST(Duration, Ceiling) { - const absl::Duration d = absl::Nanoseconds(1234567890); - const absl::Duration inf = absl::InfiniteDuration(); - for (int unit_sign : {1, -1}) { // // sign shouldn't matter - EXPECT_EQ(absl::Nanoseconds(1234567890), - absl::Ceil(d, unit_sign * absl::Nanoseconds(1))); - EXPECT_EQ(absl::Microseconds(1234568), - absl::Ceil(d, unit_sign * absl::Microseconds(1))); - EXPECT_EQ(absl::Milliseconds(1235), - absl::Ceil(d, unit_sign * absl::Milliseconds(1))); - EXPECT_EQ(absl::Seconds(2), absl::Ceil(d, unit_sign * absl::Seconds(1))); - EXPECT_EQ(inf, absl::Ceil(inf, unit_sign * absl::Seconds(1))); - - EXPECT_EQ(absl::Nanoseconds(-1234567890), - absl::Ceil(-d, unit_sign * absl::Nanoseconds(1))); - EXPECT_EQ(absl::Microseconds(-1234567), - absl::Ceil(-d, unit_sign * absl::Microseconds(1))); - EXPECT_EQ(absl::Milliseconds(-1234), - absl::Ceil(-d, unit_sign * absl::Milliseconds(1))); - EXPECT_EQ(absl::Seconds(-1), absl::Ceil(-d, unit_sign * absl::Seconds(1))); - EXPECT_EQ(-inf, absl::Ceil(-inf, unit_sign * absl::Seconds(1))); - } -} - -TEST(Duration, RoundTripUnits) { - const int kRange = 100000; - -#define ROUND_TRIP_UNIT(U, LOW, HIGH) \ - do { \ - for (int64_t i = LOW; i < HIGH; ++i) { \ - absl::Duration d = absl::U(i); \ - if (d == absl::InfiniteDuration()) \ - EXPECT_EQ(kint64max, d / absl::U(1)); \ - else if (d == -absl::InfiniteDuration()) \ - EXPECT_EQ(kint64min, d / absl::U(1)); \ - else \ - EXPECT_EQ(i, absl::U(i) / absl::U(1)); \ - } \ - } while (0) - - ROUND_TRIP_UNIT(Nanoseconds, kint64min, kint64min + kRange); - ROUND_TRIP_UNIT(Nanoseconds, -kRange, kRange); - ROUND_TRIP_UNIT(Nanoseconds, kint64max - kRange, kint64max); - - ROUND_TRIP_UNIT(Microseconds, kint64min, kint64min + kRange); - ROUND_TRIP_UNIT(Microseconds, -kRange, kRange); - ROUND_TRIP_UNIT(Microseconds, kint64max - kRange, kint64max); - - ROUND_TRIP_UNIT(Milliseconds, kint64min, kint64min + kRange); - ROUND_TRIP_UNIT(Milliseconds, -kRange, kRange); - ROUND_TRIP_UNIT(Milliseconds, kint64max - kRange, kint64max); - - ROUND_TRIP_UNIT(Seconds, kint64min, kint64min + kRange); - ROUND_TRIP_UNIT(Seconds, -kRange, kRange); - ROUND_TRIP_UNIT(Seconds, kint64max - kRange, kint64max); - - ROUND_TRIP_UNIT(Minutes, kint64min / 60, kint64min / 60 + kRange); - ROUND_TRIP_UNIT(Minutes, -kRange, kRange); - ROUND_TRIP_UNIT(Minutes, kint64max / 60 - kRange, kint64max / 60); - - ROUND_TRIP_UNIT(Hours, kint64min / 3600, kint64min / 3600 + kRange); - ROUND_TRIP_UNIT(Hours, -kRange, kRange); - ROUND_TRIP_UNIT(Hours, kint64max / 3600 - kRange, kint64max / 3600); - -#undef ROUND_TRIP_UNIT -} - -TEST(Duration, TruncConversions) { - // Tests ToTimespec()/DurationFromTimespec() - const struct { - absl::Duration d; - timespec ts; - } to_ts[] = { - {absl::Seconds(1) + absl::Nanoseconds(1), {1, 1}}, - {absl::Seconds(1) + absl::Nanoseconds(1) / 2, {1, 0}}, - {absl::Seconds(1) + absl::Nanoseconds(0), {1, 0}}, - {absl::Seconds(0) + absl::Nanoseconds(0), {0, 0}}, - {absl::Seconds(0) - absl::Nanoseconds(1) / 2, {0, 0}}, - {absl::Seconds(0) - absl::Nanoseconds(1), {-1, 999999999}}, - {absl::Seconds(-1) + absl::Nanoseconds(1), {-1, 1}}, - {absl::Seconds(-1) + absl::Nanoseconds(1) / 2, {-1, 1}}, - {absl::Seconds(-1) + absl::Nanoseconds(0), {-1, 0}}, - {absl::Seconds(-1) - absl::Nanoseconds(1) / 2, {-1, 0}}, - }; - for (const auto& test : to_ts) { - EXPECT_THAT(absl::ToTimespec(test.d), TimespecMatcher(test.ts)); - } - const struct { - timespec ts; - absl::Duration d; - } from_ts[] = { - {{1, 1}, absl::Seconds(1) + absl::Nanoseconds(1)}, - {{1, 0}, absl::Seconds(1) + absl::Nanoseconds(0)}, - {{0, 0}, absl::Seconds(0) + absl::Nanoseconds(0)}, - {{0, -1}, absl::Seconds(0) - absl::Nanoseconds(1)}, - {{-1, 999999999}, absl::Seconds(0) - absl::Nanoseconds(1)}, - {{-1, 1}, absl::Seconds(-1) + absl::Nanoseconds(1)}, - {{-1, 0}, absl::Seconds(-1) + absl::Nanoseconds(0)}, - {{-1, -1}, absl::Seconds(-1) - absl::Nanoseconds(1)}, - {{-2, 999999999}, absl::Seconds(-1) - absl::Nanoseconds(1)}, - }; - for (const auto& test : from_ts) { - EXPECT_EQ(test.d, absl::DurationFromTimespec(test.ts)); - } - - // Tests ToTimeval()/DurationFromTimeval() (same as timespec above) - const struct { - absl::Duration d; - timeval tv; - } to_tv[] = { - {absl::Seconds(1) + absl::Microseconds(1), {1, 1}}, - {absl::Seconds(1) + absl::Microseconds(1) / 2, {1, 0}}, - {absl::Seconds(1) + absl::Microseconds(0), {1, 0}}, - {absl::Seconds(0) + absl::Microseconds(0), {0, 0}}, - {absl::Seconds(0) - absl::Microseconds(1) / 2, {0, 0}}, - {absl::Seconds(0) - absl::Microseconds(1), {-1, 999999}}, - {absl::Seconds(-1) + absl::Microseconds(1), {-1, 1}}, - {absl::Seconds(-1) + absl::Microseconds(1) / 2, {-1, 1}}, - {absl::Seconds(-1) + absl::Microseconds(0), {-1, 0}}, - {absl::Seconds(-1) - absl::Microseconds(1) / 2, {-1, 0}}, - }; - for (const auto& test : to_tv) { - EXPECT_THAT(absl::ToTimeval(test.d), TimevalMatcher(test.tv)); - } - const struct { - timeval tv; - absl::Duration d; - } from_tv[] = { - {{1, 1}, absl::Seconds(1) + absl::Microseconds(1)}, - {{1, 0}, absl::Seconds(1) + absl::Microseconds(0)}, - {{0, 0}, absl::Seconds(0) + absl::Microseconds(0)}, - {{0, -1}, absl::Seconds(0) - absl::Microseconds(1)}, - {{-1, 999999}, absl::Seconds(0) - absl::Microseconds(1)}, - {{-1, 1}, absl::Seconds(-1) + absl::Microseconds(1)}, - {{-1, 0}, absl::Seconds(-1) + absl::Microseconds(0)}, - {{-1, -1}, absl::Seconds(-1) - absl::Microseconds(1)}, - {{-2, 999999}, absl::Seconds(-1) - absl::Microseconds(1)}, - }; - for (const auto& test : from_tv) { - EXPECT_EQ(test.d, absl::DurationFromTimeval(test.tv)); - } -} - -TEST(Duration, SmallConversions) { - // Special tests for conversions of small durations. - - EXPECT_EQ(absl::ZeroDuration(), absl::Seconds(0)); - // TODO(bww): Is the next one OK? - EXPECT_EQ(absl::ZeroDuration(), absl::Seconds(0.124999999e-9)); - EXPECT_EQ(absl::Nanoseconds(1) / 4, absl::Seconds(0.125e-9)); - EXPECT_EQ(absl::Nanoseconds(1) / 4, absl::Seconds(0.250e-9)); - EXPECT_EQ(absl::Nanoseconds(1) / 2, absl::Seconds(0.375e-9)); - EXPECT_EQ(absl::Nanoseconds(1) / 2, absl::Seconds(0.500e-9)); - EXPECT_EQ(absl::Nanoseconds(3) / 4, absl::Seconds(0.625e-9)); - EXPECT_EQ(absl::Nanoseconds(3) / 4, absl::Seconds(0.750e-9)); - EXPECT_EQ(absl::Nanoseconds(1), absl::Seconds(0.875e-9)); - EXPECT_EQ(absl::Nanoseconds(1), absl::Seconds(1.000e-9)); - - EXPECT_EQ(absl::ZeroDuration(), absl::Seconds(-0.124999999e-9)); - EXPECT_EQ(-absl::Nanoseconds(1) / 4, absl::Seconds(-0.125e-9)); - EXPECT_EQ(-absl::Nanoseconds(1) / 4, absl::Seconds(-0.250e-9)); - EXPECT_EQ(-absl::Nanoseconds(1) / 2, absl::Seconds(-0.375e-9)); - EXPECT_EQ(-absl::Nanoseconds(1) / 2, absl::Seconds(-0.500e-9)); - EXPECT_EQ(-absl::Nanoseconds(3) / 4, absl::Seconds(-0.625e-9)); - EXPECT_EQ(-absl::Nanoseconds(3) / 4, absl::Seconds(-0.750e-9)); - EXPECT_EQ(-absl::Nanoseconds(1), absl::Seconds(-0.875e-9)); - EXPECT_EQ(-absl::Nanoseconds(1), absl::Seconds(-1.000e-9)); - - timespec ts; - ts.tv_sec = 0; - ts.tv_nsec = 0; - EXPECT_THAT(ToTimespec(absl::Nanoseconds(0)), TimespecMatcher(ts)); - // TODO(bww): Are the next three OK? - EXPECT_THAT(ToTimespec(absl::Nanoseconds(1) / 4), TimespecMatcher(ts)); - EXPECT_THAT(ToTimespec(absl::Nanoseconds(2) / 4), TimespecMatcher(ts)); - EXPECT_THAT(ToTimespec(absl::Nanoseconds(3) / 4), TimespecMatcher(ts)); - ts.tv_nsec = 1; - EXPECT_THAT(ToTimespec(absl::Nanoseconds(4) / 4), TimespecMatcher(ts)); - EXPECT_THAT(ToTimespec(absl::Nanoseconds(5) / 4), TimespecMatcher(ts)); - EXPECT_THAT(ToTimespec(absl::Nanoseconds(6) / 4), TimespecMatcher(ts)); - EXPECT_THAT(ToTimespec(absl::Nanoseconds(7) / 4), TimespecMatcher(ts)); - ts.tv_nsec = 2; - EXPECT_THAT(ToTimespec(absl::Nanoseconds(8) / 4), TimespecMatcher(ts)); - - timeval tv; - tv.tv_sec = 0; - tv.tv_usec = 0; - EXPECT_THAT(ToTimeval(absl::Nanoseconds(0)), TimevalMatcher(tv)); - // TODO(bww): Is the next one OK? - EXPECT_THAT(ToTimeval(absl::Nanoseconds(999)), TimevalMatcher(tv)); - tv.tv_usec = 1; - EXPECT_THAT(ToTimeval(absl::Nanoseconds(1000)), TimevalMatcher(tv)); - EXPECT_THAT(ToTimeval(absl::Nanoseconds(1999)), TimevalMatcher(tv)); - tv.tv_usec = 2; - EXPECT_THAT(ToTimeval(absl::Nanoseconds(2000)), TimevalMatcher(tv)); -} - -void VerifySameAsMul(double time_as_seconds, int* const misses) { - auto direct_seconds = absl::Seconds(time_as_seconds); - auto mul_by_one_second = time_as_seconds * absl::Seconds(1); - if (direct_seconds != mul_by_one_second) { - if (*misses > 10) return; - ASSERT_LE(++(*misses), 10) << "Too many errors, not reporting more."; - EXPECT_EQ(direct_seconds, mul_by_one_second) - << "given double time_as_seconds = " << std::setprecision(17) - << time_as_seconds; - } -} - -// For a variety of interesting durations, we find the exact point -// where one double converts to that duration, and the very next double -// converts to the next duration. For both of those points, verify that -// Seconds(point) returns the same duration as point * Seconds(1.0) -TEST(Duration, ToDoubleSecondsCheckEdgeCases) { - constexpr uint32_t kTicksPerSecond = absl::time_internal::kTicksPerSecond; - constexpr auto duration_tick = absl::time_internal::MakeDuration(0, 1u); - int misses = 0; - for (int64_t seconds = 0; seconds < 99; ++seconds) { - uint32_t tick_vals[] = {0, +999, +999999, +999999999, kTicksPerSecond - 1, - 0, 1000, 1000000, 1000000000, kTicksPerSecond, - 1, 1001, 1000001, 1000000001, kTicksPerSecond + 1, - 2, 1002, 1000002, 1000000002, kTicksPerSecond + 2, - 3, 1003, 1000003, 1000000003, kTicksPerSecond + 3, - 4, 1004, 1000004, 1000000004, kTicksPerSecond + 4, - 5, 6, 7, 8, 9}; - for (uint32_t ticks : tick_vals) { - absl::Duration s_plus_t = absl::Seconds(seconds) + ticks * duration_tick; - for (absl::Duration d : {s_plus_t, -s_plus_t}) { - absl::Duration after_d = d + duration_tick; - EXPECT_NE(d, after_d); - EXPECT_EQ(after_d - d, duration_tick); - - double low_edge = ToDoubleSeconds(d); - EXPECT_EQ(d, absl::Seconds(low_edge)); - - double high_edge = ToDoubleSeconds(after_d); - EXPECT_EQ(after_d, absl::Seconds(high_edge)); - - for (;;) { - double midpoint = low_edge + (high_edge - low_edge) / 2; - if (midpoint == low_edge || midpoint == high_edge) break; - absl::Duration mid_duration = absl::Seconds(midpoint); - if (mid_duration == d) { - low_edge = midpoint; - } else { - EXPECT_EQ(mid_duration, after_d); - high_edge = midpoint; - } - } - // Now low_edge is the highest double that converts to Duration d, - // and high_edge is the lowest double that converts to Duration after_d. - VerifySameAsMul(low_edge, &misses); - VerifySameAsMul(high_edge, &misses); - } - } - } -} - -TEST(Duration, ToDoubleSecondsCheckRandom) { - std::random_device rd; - std::seed_seq seed({rd(), rd(), rd(), rd(), rd(), rd(), rd(), rd()}); - std::mt19937_64 gen(seed); - // We want doubles distributed from 1/8ns up to 2^63, where - // as many values are tested from 1ns to 2ns as from 1sec to 2sec, - // so even distribute along a log-scale of those values, and - // exponentiate before using them. (9.223377e+18 is just slightly - // out of bounds for absl::Duration.) - std::uniform_real_distribution<double> uniform(std::log(0.125e-9), - std::log(9.223377e+18)); - int misses = 0; - for (int i = 0; i < 1000000; ++i) { - double d = std::exp(uniform(gen)); - VerifySameAsMul(d, &misses); - VerifySameAsMul(-d, &misses); - } -} - -TEST(Duration, ConversionSaturation) { - absl::Duration d; - - const auto max_timeval_sec = - std::numeric_limits<decltype(timeval::tv_sec)>::max(); - const auto min_timeval_sec = - std::numeric_limits<decltype(timeval::tv_sec)>::min(); - timeval tv; - tv.tv_sec = max_timeval_sec; - tv.tv_usec = 999998; - d = absl::DurationFromTimeval(tv); - tv = ToTimeval(d); - EXPECT_EQ(max_timeval_sec, tv.tv_sec); - EXPECT_EQ(999998, tv.tv_usec); - d += absl::Microseconds(1); - tv = ToTimeval(d); - EXPECT_EQ(max_timeval_sec, tv.tv_sec); - EXPECT_EQ(999999, tv.tv_usec); - d += absl::Microseconds(1); // no effect - tv = ToTimeval(d); - EXPECT_EQ(max_timeval_sec, tv.tv_sec); - EXPECT_EQ(999999, tv.tv_usec); - - tv.tv_sec = min_timeval_sec; - tv.tv_usec = 1; - d = absl::DurationFromTimeval(tv); - tv = ToTimeval(d); - EXPECT_EQ(min_timeval_sec, tv.tv_sec); - EXPECT_EQ(1, tv.tv_usec); - d -= absl::Microseconds(1); - tv = ToTimeval(d); - EXPECT_EQ(min_timeval_sec, tv.tv_sec); - EXPECT_EQ(0, tv.tv_usec); - d -= absl::Microseconds(1); // no effect - tv = ToTimeval(d); - EXPECT_EQ(min_timeval_sec, tv.tv_sec); - EXPECT_EQ(0, tv.tv_usec); - - const auto max_timespec_sec = - std::numeric_limits<decltype(timespec::tv_sec)>::max(); - const auto min_timespec_sec = - std::numeric_limits<decltype(timespec::tv_sec)>::min(); - timespec ts; - ts.tv_sec = max_timespec_sec; - ts.tv_nsec = 999999998; - d = absl::DurationFromTimespec(ts); - ts = absl::ToTimespec(d); - EXPECT_EQ(max_timespec_sec, ts.tv_sec); - EXPECT_EQ(999999998, ts.tv_nsec); - d += absl::Nanoseconds(1); - ts = absl::ToTimespec(d); - EXPECT_EQ(max_timespec_sec, ts.tv_sec); - EXPECT_EQ(999999999, ts.tv_nsec); - d += absl::Nanoseconds(1); // no effect - ts = absl::ToTimespec(d); - EXPECT_EQ(max_timespec_sec, ts.tv_sec); - EXPECT_EQ(999999999, ts.tv_nsec); - - ts.tv_sec = min_timespec_sec; - ts.tv_nsec = 1; - d = absl::DurationFromTimespec(ts); - ts = absl::ToTimespec(d); - EXPECT_EQ(min_timespec_sec, ts.tv_sec); - EXPECT_EQ(1, ts.tv_nsec); - d -= absl::Nanoseconds(1); - ts = absl::ToTimespec(d); - EXPECT_EQ(min_timespec_sec, ts.tv_sec); - EXPECT_EQ(0, ts.tv_nsec); - d -= absl::Nanoseconds(1); // no effect - ts = absl::ToTimespec(d); - EXPECT_EQ(min_timespec_sec, ts.tv_sec); - EXPECT_EQ(0, ts.tv_nsec); -} - -TEST(Duration, FormatDuration) { - // Example from Go's docs. - EXPECT_EQ("72h3m0.5s", - absl::FormatDuration(absl::Hours(72) + absl::Minutes(3) + - absl::Milliseconds(500))); - // Go's largest time: 2540400h10m10.000000000s - EXPECT_EQ("2540400h10m10s", - absl::FormatDuration(absl::Hours(2540400) + absl::Minutes(10) + - absl::Seconds(10))); - - EXPECT_EQ("0", absl::FormatDuration(absl::ZeroDuration())); - EXPECT_EQ("0", absl::FormatDuration(absl::Seconds(0))); - EXPECT_EQ("0", absl::FormatDuration(absl::Nanoseconds(0))); - - EXPECT_EQ("1ns", absl::FormatDuration(absl::Nanoseconds(1))); - EXPECT_EQ("1us", absl::FormatDuration(absl::Microseconds(1))); - EXPECT_EQ("1ms", absl::FormatDuration(absl::Milliseconds(1))); - EXPECT_EQ("1s", absl::FormatDuration(absl::Seconds(1))); - EXPECT_EQ("1m", absl::FormatDuration(absl::Minutes(1))); - EXPECT_EQ("1h", absl::FormatDuration(absl::Hours(1))); - - EXPECT_EQ("1h1m", absl::FormatDuration(absl::Hours(1) + absl::Minutes(1))); - EXPECT_EQ("1h1s", absl::FormatDuration(absl::Hours(1) + absl::Seconds(1))); - EXPECT_EQ("1m1s", absl::FormatDuration(absl::Minutes(1) + absl::Seconds(1))); - - EXPECT_EQ("1h0.25s", - absl::FormatDuration(absl::Hours(1) + absl::Milliseconds(250))); - EXPECT_EQ("1m0.25s", - absl::FormatDuration(absl::Minutes(1) + absl::Milliseconds(250))); - EXPECT_EQ("1h1m0.25s", - absl::FormatDuration(absl::Hours(1) + absl::Minutes(1) + - absl::Milliseconds(250))); - EXPECT_EQ("1h0.0005s", - absl::FormatDuration(absl::Hours(1) + absl::Microseconds(500))); - EXPECT_EQ("1h0.0000005s", - absl::FormatDuration(absl::Hours(1) + absl::Nanoseconds(500))); - - // Subsecond special case. - EXPECT_EQ("1.5ns", absl::FormatDuration(absl::Nanoseconds(1) + - absl::Nanoseconds(1) / 2)); - EXPECT_EQ("1.25ns", absl::FormatDuration(absl::Nanoseconds(1) + - absl::Nanoseconds(1) / 4)); - EXPECT_EQ("1ns", absl::FormatDuration(absl::Nanoseconds(1) + - absl::Nanoseconds(1) / 9)); - EXPECT_EQ("1.2us", absl::FormatDuration(absl::Microseconds(1) + - absl::Nanoseconds(200))); - EXPECT_EQ("1.2ms", absl::FormatDuration(absl::Milliseconds(1) + - absl::Microseconds(200))); - EXPECT_EQ("1.0002ms", absl::FormatDuration(absl::Milliseconds(1) + - absl::Nanoseconds(200))); - EXPECT_EQ("1.00001ms", absl::FormatDuration(absl::Milliseconds(1) + - absl::Nanoseconds(10))); - EXPECT_EQ("1.000001ms", - absl::FormatDuration(absl::Milliseconds(1) + absl::Nanoseconds(1))); - - // Negative durations. - EXPECT_EQ("-1ns", absl::FormatDuration(absl::Nanoseconds(-1))); - EXPECT_EQ("-1us", absl::FormatDuration(absl::Microseconds(-1))); - EXPECT_EQ("-1ms", absl::FormatDuration(absl::Milliseconds(-1))); - EXPECT_EQ("-1s", absl::FormatDuration(absl::Seconds(-1))); - EXPECT_EQ("-1m", absl::FormatDuration(absl::Minutes(-1))); - EXPECT_EQ("-1h", absl::FormatDuration(absl::Hours(-1))); - - EXPECT_EQ("-1h1m", - absl::FormatDuration(-(absl::Hours(1) + absl::Minutes(1)))); - EXPECT_EQ("-1h1s", - absl::FormatDuration(-(absl::Hours(1) + absl::Seconds(1)))); - EXPECT_EQ("-1m1s", - absl::FormatDuration(-(absl::Minutes(1) + absl::Seconds(1)))); - - EXPECT_EQ("-1ns", absl::FormatDuration(absl::Nanoseconds(-1))); - EXPECT_EQ("-1.2us", absl::FormatDuration( - -(absl::Microseconds(1) + absl::Nanoseconds(200)))); - EXPECT_EQ("-1.2ms", absl::FormatDuration( - -(absl::Milliseconds(1) + absl::Microseconds(200)))); - EXPECT_EQ("-1.0002ms", absl::FormatDuration(-(absl::Milliseconds(1) + - absl::Nanoseconds(200)))); - EXPECT_EQ("-1.00001ms", absl::FormatDuration(-(absl::Milliseconds(1) + - absl::Nanoseconds(10)))); - EXPECT_EQ("-1.000001ms", absl::FormatDuration(-(absl::Milliseconds(1) + - absl::Nanoseconds(1)))); - - // - // Interesting corner cases. - // - - const absl::Duration qns = absl::Nanoseconds(1) / 4; - const absl::Duration max_dur = - absl::Seconds(kint64max) + (absl::Seconds(1) - qns); - const absl::Duration min_dur = absl::Seconds(kint64min); - - EXPECT_EQ("0.25ns", absl::FormatDuration(qns)); - EXPECT_EQ("-0.25ns", absl::FormatDuration(-qns)); - EXPECT_EQ("2562047788015215h30m7.99999999975s", - absl::FormatDuration(max_dur)); - EXPECT_EQ("-2562047788015215h30m8s", absl::FormatDuration(min_dur)); - - // Tests printing full precision from units that print using FDivDuration - EXPECT_EQ("55.00000000025s", absl::FormatDuration(absl::Seconds(55) + qns)); - EXPECT_EQ("55.00000025ms", - absl::FormatDuration(absl::Milliseconds(55) + qns)); - EXPECT_EQ("55.00025us", absl::FormatDuration(absl::Microseconds(55) + qns)); - EXPECT_EQ("55.25ns", absl::FormatDuration(absl::Nanoseconds(55) + qns)); - - // Formatting infinity - EXPECT_EQ("inf", absl::FormatDuration(absl::InfiniteDuration())); - EXPECT_EQ("-inf", absl::FormatDuration(-absl::InfiniteDuration())); - - // Formatting approximately +/- 100 billion years - const absl::Duration huge_range = ApproxYears(100000000000); - EXPECT_EQ("876000000000000h", absl::FormatDuration(huge_range)); - EXPECT_EQ("-876000000000000h", absl::FormatDuration(-huge_range)); - - EXPECT_EQ("876000000000000h0.999999999s", - absl::FormatDuration(huge_range + - (absl::Seconds(1) - absl::Nanoseconds(1)))); - EXPECT_EQ("876000000000000h0.9999999995s", - absl::FormatDuration( - huge_range + (absl::Seconds(1) - absl::Nanoseconds(1) / 2))); - EXPECT_EQ("876000000000000h0.99999999975s", - absl::FormatDuration( - huge_range + (absl::Seconds(1) - absl::Nanoseconds(1) / 4))); - - EXPECT_EQ("-876000000000000h0.999999999s", - absl::FormatDuration(-huge_range - - (absl::Seconds(1) - absl::Nanoseconds(1)))); - EXPECT_EQ("-876000000000000h0.9999999995s", - absl::FormatDuration( - -huge_range - (absl::Seconds(1) - absl::Nanoseconds(1) / 2))); - EXPECT_EQ("-876000000000000h0.99999999975s", - absl::FormatDuration( - -huge_range - (absl::Seconds(1) - absl::Nanoseconds(1) / 4))); -} - -TEST(Duration, ParseDuration) { - absl::Duration d; - - // No specified unit. Should only work for zero and infinity. - EXPECT_TRUE(absl::ParseDuration("0", &d)); - EXPECT_EQ(absl::ZeroDuration(), d); - EXPECT_TRUE(absl::ParseDuration("+0", &d)); - EXPECT_EQ(absl::ZeroDuration(), d); - EXPECT_TRUE(absl::ParseDuration("-0", &d)); - EXPECT_EQ(absl::ZeroDuration(), d); - - EXPECT_TRUE(absl::ParseDuration("inf", &d)); - EXPECT_EQ(absl::InfiniteDuration(), d); - EXPECT_TRUE(absl::ParseDuration("+inf", &d)); - EXPECT_EQ(absl::InfiniteDuration(), d); - EXPECT_TRUE(absl::ParseDuration("-inf", &d)); - EXPECT_EQ(-absl::InfiniteDuration(), d); - EXPECT_FALSE(absl::ParseDuration("infBlah", &d)); - - // Illegal input forms. - EXPECT_FALSE(absl::ParseDuration("", &d)); - EXPECT_FALSE(absl::ParseDuration("0.0", &d)); - EXPECT_FALSE(absl::ParseDuration(".0", &d)); - EXPECT_FALSE(absl::ParseDuration(".", &d)); - EXPECT_FALSE(absl::ParseDuration("01", &d)); - EXPECT_FALSE(absl::ParseDuration("1", &d)); - EXPECT_FALSE(absl::ParseDuration("-1", &d)); - EXPECT_FALSE(absl::ParseDuration("2", &d)); - EXPECT_FALSE(absl::ParseDuration("2 s", &d)); - EXPECT_FALSE(absl::ParseDuration(".s", &d)); - EXPECT_FALSE(absl::ParseDuration("-.s", &d)); - EXPECT_FALSE(absl::ParseDuration("s", &d)); - EXPECT_FALSE(absl::ParseDuration(" 2s", &d)); - EXPECT_FALSE(absl::ParseDuration("2s ", &d)); - EXPECT_FALSE(absl::ParseDuration(" 2s ", &d)); - EXPECT_FALSE(absl::ParseDuration("2mt", &d)); - EXPECT_FALSE(absl::ParseDuration("1e3s", &d)); - - // One unit type. - EXPECT_TRUE(absl::ParseDuration("1ns", &d)); - EXPECT_EQ(absl::Nanoseconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1us", &d)); - EXPECT_EQ(absl::Microseconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1ms", &d)); - EXPECT_EQ(absl::Milliseconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1s", &d)); - EXPECT_EQ(absl::Seconds(1), d); - EXPECT_TRUE(absl::ParseDuration("2m", &d)); - EXPECT_EQ(absl::Minutes(2), d); - EXPECT_TRUE(absl::ParseDuration("2h", &d)); - EXPECT_EQ(absl::Hours(2), d); - - // Huge counts of a unit. - EXPECT_TRUE(absl::ParseDuration("9223372036854775807us", &d)); - EXPECT_EQ(absl::Microseconds(9223372036854775807), d); - EXPECT_TRUE(absl::ParseDuration("-9223372036854775807us", &d)); - EXPECT_EQ(absl::Microseconds(-9223372036854775807), d); - - // Multiple units. - EXPECT_TRUE(absl::ParseDuration("2h3m4s", &d)); - EXPECT_EQ(absl::Hours(2) + absl::Minutes(3) + absl::Seconds(4), d); - EXPECT_TRUE(absl::ParseDuration("3m4s5us", &d)); - EXPECT_EQ(absl::Minutes(3) + absl::Seconds(4) + absl::Microseconds(5), d); - EXPECT_TRUE(absl::ParseDuration("2h3m4s5ms6us7ns", &d)); - EXPECT_EQ(absl::Hours(2) + absl::Minutes(3) + absl::Seconds(4) + - absl::Milliseconds(5) + absl::Microseconds(6) + - absl::Nanoseconds(7), - d); - - // Multiple units out of order. - EXPECT_TRUE(absl::ParseDuration("2us3m4s5h", &d)); - EXPECT_EQ(absl::Hours(5) + absl::Minutes(3) + absl::Seconds(4) + - absl::Microseconds(2), - d); - - // Fractional values of units. - EXPECT_TRUE(absl::ParseDuration("1.5ns", &d)); - EXPECT_EQ(1.5 * absl::Nanoseconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1.5us", &d)); - EXPECT_EQ(1.5 * absl::Microseconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1.5ms", &d)); - EXPECT_EQ(1.5 * absl::Milliseconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1.5s", &d)); - EXPECT_EQ(1.5 * absl::Seconds(1), d); - EXPECT_TRUE(absl::ParseDuration("1.5m", &d)); - EXPECT_EQ(1.5 * absl::Minutes(1), d); - EXPECT_TRUE(absl::ParseDuration("1.5h", &d)); - EXPECT_EQ(1.5 * absl::Hours(1), d); - - // Huge fractional counts of a unit. - EXPECT_TRUE(absl::ParseDuration("0.4294967295s", &d)); - EXPECT_EQ(absl::Nanoseconds(429496729) + absl::Nanoseconds(1) / 2, d); - EXPECT_TRUE(absl::ParseDuration("0.429496729501234567890123456789s", &d)); - EXPECT_EQ(absl::Nanoseconds(429496729) + absl::Nanoseconds(1) / 2, d); - - // Negative durations. - EXPECT_TRUE(absl::ParseDuration("-1s", &d)); - EXPECT_EQ(absl::Seconds(-1), d); - EXPECT_TRUE(absl::ParseDuration("-1m", &d)); - EXPECT_EQ(absl::Minutes(-1), d); - EXPECT_TRUE(absl::ParseDuration("-1h", &d)); - EXPECT_EQ(absl::Hours(-1), d); - - EXPECT_TRUE(absl::ParseDuration("-1h2s", &d)); - EXPECT_EQ(-(absl::Hours(1) + absl::Seconds(2)), d); - EXPECT_FALSE(absl::ParseDuration("1h-2s", &d)); - EXPECT_FALSE(absl::ParseDuration("-1h-2s", &d)); - EXPECT_FALSE(absl::ParseDuration("-1h -2s", &d)); -} - -TEST(Duration, FormatParseRoundTrip) { -#define TEST_PARSE_ROUNDTRIP(d) \ - do { \ - std::string s = absl::FormatDuration(d); \ - absl::Duration dur; \ - EXPECT_TRUE(absl::ParseDuration(s, &dur)); \ - EXPECT_EQ(d, dur); \ - } while (0) - - TEST_PARSE_ROUNDTRIP(absl::Nanoseconds(1)); - TEST_PARSE_ROUNDTRIP(absl::Microseconds(1)); - TEST_PARSE_ROUNDTRIP(absl::Milliseconds(1)); - TEST_PARSE_ROUNDTRIP(absl::Seconds(1)); - TEST_PARSE_ROUNDTRIP(absl::Minutes(1)); - TEST_PARSE_ROUNDTRIP(absl::Hours(1)); - TEST_PARSE_ROUNDTRIP(absl::Hours(1) + absl::Nanoseconds(2)); - - TEST_PARSE_ROUNDTRIP(absl::Nanoseconds(-1)); - TEST_PARSE_ROUNDTRIP(absl::Microseconds(-1)); - TEST_PARSE_ROUNDTRIP(absl::Milliseconds(-1)); - TEST_PARSE_ROUNDTRIP(absl::Seconds(-1)); - TEST_PARSE_ROUNDTRIP(absl::Minutes(-1)); - TEST_PARSE_ROUNDTRIP(absl::Hours(-1)); - - TEST_PARSE_ROUNDTRIP(absl::Hours(-1) + absl::Nanoseconds(2)); - TEST_PARSE_ROUNDTRIP(absl::Hours(1) + absl::Nanoseconds(-2)); - TEST_PARSE_ROUNDTRIP(absl::Hours(-1) + absl::Nanoseconds(-2)); - - TEST_PARSE_ROUNDTRIP(absl::Nanoseconds(1) + - absl::Nanoseconds(1) / 4); // 1.25ns - - const absl::Duration huge_range = ApproxYears(100000000000); - TEST_PARSE_ROUNDTRIP(huge_range); - TEST_PARSE_ROUNDTRIP(huge_range + (absl::Seconds(1) - absl::Nanoseconds(1))); - -#undef TEST_PARSE_ROUNDTRIP -} - -} // namespace diff --git a/third_party/abseil_cpp/absl/time/format.cc b/third_party/abseil_cpp/absl/time/format.cc deleted file mode 100644 index 4005fb704c..0000000000 --- a/third_party/abseil_cpp/absl/time/format.cc +++ /dev/null @@ -1,160 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include <string.h> - -#include <cctype> -#include <cstdint> - -#include "absl/strings/match.h" -#include "absl/strings/string_view.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" -#include "absl/time/time.h" - -namespace cctz = absl::time_internal::cctz; - -namespace absl { -ABSL_NAMESPACE_BEGIN - -ABSL_DLL extern const char RFC3339_full[] = "%Y-%m-%d%ET%H:%M:%E*S%Ez"; -ABSL_DLL extern const char RFC3339_sec[] = "%Y-%m-%d%ET%H:%M:%S%Ez"; - -ABSL_DLL extern const char RFC1123_full[] = "%a, %d %b %E4Y %H:%M:%S %z"; -ABSL_DLL extern const char RFC1123_no_wday[] = "%d %b %E4Y %H:%M:%S %z"; - -namespace { - -const char kInfiniteFutureStr[] = "infinite-future"; -const char kInfinitePastStr[] = "infinite-past"; - -struct cctz_parts { - cctz::time_point<cctz::seconds> sec; - cctz::detail::femtoseconds fem; -}; - -inline cctz::time_point<cctz::seconds> unix_epoch() { - return std::chrono::time_point_cast<cctz::seconds>( - std::chrono::system_clock::from_time_t(0)); -} - -// Splits a Time into seconds and femtoseconds, which can be used with CCTZ. -// Requires that 't' is finite. See duration.cc for details about rep_hi and -// rep_lo. -cctz_parts Split(absl::Time t) { - const auto d = time_internal::ToUnixDuration(t); - const int64_t rep_hi = time_internal::GetRepHi(d); - const int64_t rep_lo = time_internal::GetRepLo(d); - const auto sec = unix_epoch() + cctz::seconds(rep_hi); - const auto fem = cctz::detail::femtoseconds(rep_lo * (1000 * 1000 / 4)); - return {sec, fem}; -} - -// Joins the given seconds and femtoseconds into a Time. See duration.cc for -// details about rep_hi and rep_lo. -absl::Time Join(const cctz_parts& parts) { - const int64_t rep_hi = (parts.sec - unix_epoch()).count(); - const uint32_t rep_lo = parts.fem.count() / (1000 * 1000 / 4); - const auto d = time_internal::MakeDuration(rep_hi, rep_lo); - return time_internal::FromUnixDuration(d); -} - -} // namespace - -std::string FormatTime(absl::string_view format, absl::Time t, - absl::TimeZone tz) { - if (t == absl::InfiniteFuture()) return std::string(kInfiniteFutureStr); - if (t == absl::InfinitePast()) return std::string(kInfinitePastStr); - const auto parts = Split(t); - return cctz::detail::format(std::string(format), parts.sec, parts.fem, - cctz::time_zone(tz)); -} - -std::string FormatTime(absl::Time t, absl::TimeZone tz) { - return FormatTime(RFC3339_full, t, tz); -} - -std::string FormatTime(absl::Time t) { - return absl::FormatTime(RFC3339_full, t, absl::LocalTimeZone()); -} - -bool ParseTime(absl::string_view format, absl::string_view input, - absl::Time* time, std::string* err) { - return absl::ParseTime(format, input, absl::UTCTimeZone(), time, err); -} - -// If the input string does not contain an explicit UTC offset, interpret -// the fields with respect to the given TimeZone. -bool ParseTime(absl::string_view format, absl::string_view input, - absl::TimeZone tz, absl::Time* time, std::string* err) { - auto strip_leading_space = [](absl::string_view* sv) { - while (!sv->empty()) { - if (!std::isspace(sv->front())) return; - sv->remove_prefix(1); - } - }; - - // Portable toolchains means we don't get nice constexpr here. - struct Literal { - const char* name; - size_t size; - absl::Time value; - }; - static Literal literals[] = { - {kInfiniteFutureStr, strlen(kInfiniteFutureStr), InfiniteFuture()}, - {kInfinitePastStr, strlen(kInfinitePastStr), InfinitePast()}, - }; - strip_leading_space(&input); - for (const auto& lit : literals) { - if (absl::StartsWith(input, absl::string_view(lit.name, lit.size))) { - absl::string_view tail = input; - tail.remove_prefix(lit.size); - strip_leading_space(&tail); - if (tail.empty()) { - *time = lit.value; - return true; - } - } - } - - std::string error; - cctz_parts parts; - const bool b = - cctz::detail::parse(std::string(format), std::string(input), - cctz::time_zone(tz), &parts.sec, &parts.fem, &error); - if (b) { - *time = Join(parts); - } else if (err != nullptr) { - *err = error; - } - return b; -} - -// Functions required to support absl::Time flags. -bool AbslParseFlag(absl::string_view text, absl::Time* t, std::string* error) { - return absl::ParseTime(RFC3339_full, text, absl::UTCTimeZone(), t, error); -} - -std::string AbslUnparseFlag(absl::Time t) { - return absl::FormatTime(RFC3339_full, t, absl::UTCTimeZone()); -} -bool ParseFlag(const std::string& text, absl::Time* t, std::string* error) { - return absl::ParseTime(RFC3339_full, text, absl::UTCTimeZone(), t, error); -} - -std::string UnparseFlag(absl::Time t) { - return absl::FormatTime(RFC3339_full, t, absl::UTCTimeZone()); -} - -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/format_benchmark.cc b/third_party/abseil_cpp/absl/time/format_benchmark.cc deleted file mode 100644 index 19e481dbd1..0000000000 --- a/third_party/abseil_cpp/absl/time/format_benchmark.cc +++ /dev/null @@ -1,64 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include <cstddef> -#include <string> - -#include "absl/time/internal/test_util.h" -#include "absl/time/time.h" -#include "benchmark/benchmark.h" - -namespace { - -namespace { -const char* const kFormats[] = { - absl::RFC1123_full, // 0 - absl::RFC1123_no_wday, // 1 - absl::RFC3339_full, // 2 - absl::RFC3339_sec, // 3 - "%Y-%m-%d%ET%H:%M:%S", // 4 - "%Y-%m-%d", // 5 -}; -const int kNumFormats = sizeof(kFormats) / sizeof(kFormats[0]); -} // namespace - -void BM_Format_FormatTime(benchmark::State& state) { - const std::string fmt = kFormats[state.range(0)]; - state.SetLabel(fmt); - const absl::TimeZone lax = - absl::time_internal::LoadTimeZone("America/Los_Angeles"); - const absl::Time t = - absl::FromCivil(absl::CivilSecond(1977, 6, 28, 9, 8, 7), lax) + - absl::Nanoseconds(1); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::FormatTime(fmt, t, lax).length()); - } -} -BENCHMARK(BM_Format_FormatTime)->DenseRange(0, kNumFormats - 1); - -void BM_Format_ParseTime(benchmark::State& state) { - const std::string fmt = kFormats[state.range(0)]; - state.SetLabel(fmt); - const absl::TimeZone lax = - absl::time_internal::LoadTimeZone("America/Los_Angeles"); - absl::Time t = absl::FromCivil(absl::CivilSecond(1977, 6, 28, 9, 8, 7), lax) + - absl::Nanoseconds(1); - const std::string when = absl::FormatTime(fmt, t, lax); - std::string err; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::ParseTime(fmt, when, lax, &t, &err)); - } -} -BENCHMARK(BM_Format_ParseTime)->DenseRange(0, kNumFormats - 1); - -} // namespace diff --git a/third_party/abseil_cpp/absl/time/format_test.cc b/third_party/abseil_cpp/absl/time/format_test.cc deleted file mode 100644 index a9a1eb8ee1..0000000000 --- a/third_party/abseil_cpp/absl/time/format_test.cc +++ /dev/null @@ -1,441 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include <cstdint> -#include <limits> -#include <string> - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/time/internal/test_util.h" -#include "absl/time/time.h" - -using testing::HasSubstr; - -namespace { - -// A helper that tests the given format specifier by itself, and with leading -// and trailing characters. For example: TestFormatSpecifier(t, "%a", "Thu"). -void TestFormatSpecifier(absl::Time t, absl::TimeZone tz, - const std::string& fmt, const std::string& ans) { - EXPECT_EQ(ans, absl::FormatTime(fmt, t, tz)); - EXPECT_EQ("xxx " + ans, absl::FormatTime("xxx " + fmt, t, tz)); - EXPECT_EQ(ans + " yyy", absl::FormatTime(fmt + " yyy", t, tz)); - EXPECT_EQ("xxx " + ans + " yyy", - absl::FormatTime("xxx " + fmt + " yyy", t, tz)); -} - -// -// Testing FormatTime() -// - -TEST(FormatTime, Basics) { - absl::TimeZone tz = absl::UTCTimeZone(); - absl::Time t = absl::FromTimeT(0); - - // Starts with a couple basic edge cases. - EXPECT_EQ("", absl::FormatTime("", t, tz)); - EXPECT_EQ(" ", absl::FormatTime(" ", t, tz)); - EXPECT_EQ(" ", absl::FormatTime(" ", t, tz)); - EXPECT_EQ("xxx", absl::FormatTime("xxx", t, tz)); - std::string big(128, 'x'); - EXPECT_EQ(big, absl::FormatTime(big, t, tz)); - // Cause the 1024-byte buffer to grow. - std::string bigger(100000, 'x'); - EXPECT_EQ(bigger, absl::FormatTime(bigger, t, tz)); - - t += absl::Hours(13) + absl::Minutes(4) + absl::Seconds(5); - t += absl::Milliseconds(6) + absl::Microseconds(7) + absl::Nanoseconds(8); - EXPECT_EQ("1970-01-01", absl::FormatTime("%Y-%m-%d", t, tz)); - EXPECT_EQ("13:04:05", absl::FormatTime("%H:%M:%S", t, tz)); - EXPECT_EQ("13:04:05.006", absl::FormatTime("%H:%M:%E3S", t, tz)); - EXPECT_EQ("13:04:05.006007", absl::FormatTime("%H:%M:%E6S", t, tz)); - EXPECT_EQ("13:04:05.006007008", absl::FormatTime("%H:%M:%E9S", t, tz)); -} - -TEST(FormatTime, LocaleSpecific) { - const absl::TimeZone tz = absl::UTCTimeZone(); - absl::Time t = absl::FromTimeT(0); - - TestFormatSpecifier(t, tz, "%a", "Thu"); - TestFormatSpecifier(t, tz, "%A", "Thursday"); - TestFormatSpecifier(t, tz, "%b", "Jan"); - TestFormatSpecifier(t, tz, "%B", "January"); - - // %c should at least produce the numeric year and time-of-day. - const std::string s = - absl::FormatTime("%c", absl::FromTimeT(0), absl::UTCTimeZone()); - EXPECT_THAT(s, HasSubstr("1970")); - EXPECT_THAT(s, HasSubstr("00:00:00")); - - TestFormatSpecifier(t, tz, "%p", "AM"); - TestFormatSpecifier(t, tz, "%x", "01/01/70"); - TestFormatSpecifier(t, tz, "%X", "00:00:00"); -} - -TEST(FormatTime, ExtendedSeconds) { - const absl::TimeZone tz = absl::UTCTimeZone(); - - // No subseconds. - absl::Time t = absl::FromTimeT(0) + absl::Seconds(5); - EXPECT_EQ("05", absl::FormatTime("%E*S", t, tz)); - EXPECT_EQ("05.000000000000000", absl::FormatTime("%E15S", t, tz)); - - // With subseconds. - t += absl::Milliseconds(6) + absl::Microseconds(7) + absl::Nanoseconds(8); - EXPECT_EQ("05.006007008", absl::FormatTime("%E*S", t, tz)); - EXPECT_EQ("05", absl::FormatTime("%E0S", t, tz)); - EXPECT_EQ("05.006007008000000", absl::FormatTime("%E15S", t, tz)); - - // Times before the Unix epoch. - t = absl::FromUnixMicros(-1); - EXPECT_EQ("1969-12-31 23:59:59.999999", - absl::FormatTime("%Y-%m-%d %H:%M:%E*S", t, tz)); - - // Here is a "%E*S" case we got wrong for a while. While the first - // instant below is correctly rendered as "...:07.333304", the second - // one used to appear as "...:07.33330499999999999". - t = absl::FromUnixMicros(1395024427333304); - EXPECT_EQ("2014-03-17 02:47:07.333304", - absl::FormatTime("%Y-%m-%d %H:%M:%E*S", t, tz)); - t += absl::Microseconds(1); - EXPECT_EQ("2014-03-17 02:47:07.333305", - absl::FormatTime("%Y-%m-%d %H:%M:%E*S", t, tz)); -} - -TEST(FormatTime, RFC1123FormatPadsYear) { // locale specific - absl::TimeZone tz = absl::UTCTimeZone(); - - // A year of 77 should be padded to 0077. - absl::Time t = absl::FromCivil(absl::CivilSecond(77, 6, 28, 9, 8, 7), tz); - EXPECT_EQ("Mon, 28 Jun 0077 09:08:07 +0000", - absl::FormatTime(absl::RFC1123_full, t, tz)); - EXPECT_EQ("28 Jun 0077 09:08:07 +0000", - absl::FormatTime(absl::RFC1123_no_wday, t, tz)); -} - -TEST(FormatTime, InfiniteTime) { - absl::TimeZone tz = absl::time_internal::LoadTimeZone("America/Los_Angeles"); - - // The format and timezone are ignored. - EXPECT_EQ("infinite-future", - absl::FormatTime("%H:%M blah", absl::InfiniteFuture(), tz)); - EXPECT_EQ("infinite-past", - absl::FormatTime("%H:%M blah", absl::InfinitePast(), tz)); -} - -// -// Testing ParseTime() -// - -TEST(ParseTime, Basics) { - absl::Time t = absl::FromTimeT(1234567890); - std::string err; - - // Simple edge cases. - EXPECT_TRUE(absl::ParseTime("", "", &t, &err)) << err; - EXPECT_EQ(absl::UnixEpoch(), t); // everything defaulted - EXPECT_TRUE(absl::ParseTime(" ", " ", &t, &err)) << err; - EXPECT_TRUE(absl::ParseTime(" ", " ", &t, &err)) << err; - EXPECT_TRUE(absl::ParseTime("x", "x", &t, &err)) << err; - EXPECT_TRUE(absl::ParseTime("xxx", "xxx", &t, &err)) << err; - - EXPECT_TRUE(absl::ParseTime("%Y-%m-%d %H:%M:%S %z", - "2013-06-28 19:08:09 -0800", &t, &err)) - << err; - const auto ci = absl::FixedTimeZone(-8 * 60 * 60).At(t); - EXPECT_EQ(absl::CivilSecond(2013, 6, 28, 19, 8, 9), ci.cs); - EXPECT_EQ(absl::ZeroDuration(), ci.subsecond); -} - -TEST(ParseTime, NullErrorString) { - absl::Time t; - EXPECT_FALSE(absl::ParseTime("%Q", "invalid format", &t, nullptr)); - EXPECT_FALSE(absl::ParseTime("%H", "12 trailing data", &t, nullptr)); - EXPECT_FALSE( - absl::ParseTime("%H out of range", "42 out of range", &t, nullptr)); -} - -TEST(ParseTime, WithTimeZone) { - const absl::TimeZone tz = - absl::time_internal::LoadTimeZone("America/Los_Angeles"); - absl::Time t; - std::string e; - - // We can parse a string without a UTC offset if we supply a timezone. - EXPECT_TRUE( - absl::ParseTime("%Y-%m-%d %H:%M:%S", "2013-06-28 19:08:09", tz, &t, &e)) - << e; - auto ci = tz.At(t); - EXPECT_EQ(absl::CivilSecond(2013, 6, 28, 19, 8, 9), ci.cs); - EXPECT_EQ(absl::ZeroDuration(), ci.subsecond); - - // But the timezone is ignored when a UTC offset is present. - EXPECT_TRUE(absl::ParseTime("%Y-%m-%d %H:%M:%S %z", - "2013-06-28 19:08:09 +0800", tz, &t, &e)) - << e; - ci = absl::FixedTimeZone(8 * 60 * 60).At(t); - EXPECT_EQ(absl::CivilSecond(2013, 6, 28, 19, 8, 9), ci.cs); - EXPECT_EQ(absl::ZeroDuration(), ci.subsecond); -} - -TEST(ParseTime, ErrorCases) { - absl::Time t = absl::FromTimeT(0); - std::string err; - - EXPECT_FALSE(absl::ParseTime("%S", "123", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Illegal trailing data")); - - // Can't parse an illegal format specifier. - err.clear(); - EXPECT_FALSE(absl::ParseTime("%Q", "x", &t, &err)) << err; - // Exact contents of "err" are platform-dependent because of - // differences in the strptime implementation between macOS and Linux. - EXPECT_FALSE(err.empty()); - - // Fails because of trailing, unparsed data "blah". - EXPECT_FALSE(absl::ParseTime("%m-%d", "2-3 blah", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Illegal trailing data")); - - // Feb 31 requires normalization. - EXPECT_FALSE(absl::ParseTime("%m-%d", "2-31", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Out-of-range")); - - // Check that we cannot have spaces in UTC offsets. - EXPECT_TRUE(absl::ParseTime("%z", "-0203", &t, &err)) << err; - EXPECT_FALSE(absl::ParseTime("%z", "- 2 3", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); - EXPECT_TRUE(absl::ParseTime("%Ez", "-02:03", &t, &err)) << err; - EXPECT_FALSE(absl::ParseTime("%Ez", "- 2: 3", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); - - // Check that we reject other malformed UTC offsets. - EXPECT_FALSE(absl::ParseTime("%Ez", "+-08:00", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); - EXPECT_FALSE(absl::ParseTime("%Ez", "-+08:00", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); - - // Check that we do not accept "-0" in fields that allow zero. - EXPECT_FALSE(absl::ParseTime("%Y", "-0", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); - EXPECT_FALSE(absl::ParseTime("%E4Y", "-0", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); - EXPECT_FALSE(absl::ParseTime("%H", "-0", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); - EXPECT_FALSE(absl::ParseTime("%M", "-0", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); - EXPECT_FALSE(absl::ParseTime("%S", "-0", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); - EXPECT_FALSE(absl::ParseTime("%z", "+-000", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); - EXPECT_FALSE(absl::ParseTime("%Ez", "+-0:00", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); - EXPECT_FALSE(absl::ParseTime("%z", "-00-0", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Illegal trailing data")); - EXPECT_FALSE(absl::ParseTime("%Ez", "-00:-0", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Illegal trailing data")); -} - -TEST(ParseTime, ExtendedSeconds) { - std::string err; - absl::Time t; - - // Here is a "%E*S" case we got wrong for a while. The fractional - // part of the first instant is less than 2^31 and was correctly - // parsed, while the second (and any subsecond field >=2^31) failed. - t = absl::UnixEpoch(); - EXPECT_TRUE(absl::ParseTime("%E*S", "0.2147483647", &t, &err)) << err; - EXPECT_EQ(absl::UnixEpoch() + absl::Nanoseconds(214748364) + - absl::Nanoseconds(1) / 2, - t); - t = absl::UnixEpoch(); - EXPECT_TRUE(absl::ParseTime("%E*S", "0.2147483648", &t, &err)) << err; - EXPECT_EQ(absl::UnixEpoch() + absl::Nanoseconds(214748364) + - absl::Nanoseconds(3) / 4, - t); - - // We should also be able to specify long strings of digits far - // beyond the current resolution and have them convert the same way. - t = absl::UnixEpoch(); - EXPECT_TRUE(absl::ParseTime( - "%E*S", "0.214748364801234567890123456789012345678901234567890123456789", - &t, &err)) - << err; - EXPECT_EQ(absl::UnixEpoch() + absl::Nanoseconds(214748364) + - absl::Nanoseconds(3) / 4, - t); -} - -TEST(ParseTime, ExtendedOffsetErrors) { - std::string err; - absl::Time t; - - // %z against +-HHMM. - EXPECT_FALSE(absl::ParseTime("%z", "-123", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Illegal trailing data")); - - // %z against +-HH. - EXPECT_FALSE(absl::ParseTime("%z", "-1", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); - - // %Ez against +-HH:MM. - EXPECT_FALSE(absl::ParseTime("%Ez", "-12:3", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Illegal trailing data")); - - // %Ez against +-HHMM. - EXPECT_FALSE(absl::ParseTime("%Ez", "-123", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Illegal trailing data")); - - // %Ez against +-HH. - EXPECT_FALSE(absl::ParseTime("%Ez", "-1", &t, &err)) << err; - EXPECT_THAT(err, HasSubstr("Failed to parse")); -} - -TEST(ParseTime, InfiniteTime) { - absl::Time t; - std::string err; - EXPECT_TRUE(absl::ParseTime("%H:%M blah", "infinite-future", &t, &err)); - EXPECT_EQ(absl::InfiniteFuture(), t); - - // Surrounding whitespace. - EXPECT_TRUE(absl::ParseTime("%H:%M blah", " infinite-future", &t, &err)); - EXPECT_EQ(absl::InfiniteFuture(), t); - EXPECT_TRUE(absl::ParseTime("%H:%M blah", "infinite-future ", &t, &err)); - EXPECT_EQ(absl::InfiniteFuture(), t); - EXPECT_TRUE(absl::ParseTime("%H:%M blah", " infinite-future ", &t, &err)); - EXPECT_EQ(absl::InfiniteFuture(), t); - - EXPECT_TRUE(absl::ParseTime("%H:%M blah", "infinite-past", &t, &err)); - EXPECT_EQ(absl::InfinitePast(), t); - - // Surrounding whitespace. - EXPECT_TRUE(absl::ParseTime("%H:%M blah", " infinite-past", &t, &err)); - EXPECT_EQ(absl::InfinitePast(), t); - EXPECT_TRUE(absl::ParseTime("%H:%M blah", "infinite-past ", &t, &err)); - EXPECT_EQ(absl::InfinitePast(), t); - EXPECT_TRUE(absl::ParseTime("%H:%M blah", " infinite-past ", &t, &err)); - EXPECT_EQ(absl::InfinitePast(), t); - - // "infinite-future" as literal string - absl::TimeZone tz = absl::UTCTimeZone(); - EXPECT_TRUE(absl::ParseTime("infinite-future %H:%M", "infinite-future 03:04", - &t, &err)); - EXPECT_NE(absl::InfiniteFuture(), t); - EXPECT_EQ(3, tz.At(t).cs.hour()); - EXPECT_EQ(4, tz.At(t).cs.minute()); - - // "infinite-past" as literal string - EXPECT_TRUE( - absl::ParseTime("infinite-past %H:%M", "infinite-past 03:04", &t, &err)); - EXPECT_NE(absl::InfinitePast(), t); - EXPECT_EQ(3, tz.At(t).cs.hour()); - EXPECT_EQ(4, tz.At(t).cs.minute()); - - // The input doesn't match the format. - EXPECT_FALSE(absl::ParseTime("infinite-future %H:%M", "03:04", &t, &err)); - EXPECT_FALSE(absl::ParseTime("infinite-past %H:%M", "03:04", &t, &err)); -} - -TEST(ParseTime, FailsOnUnrepresentableTime) { - const absl::TimeZone utc = absl::UTCTimeZone(); - absl::Time t; - EXPECT_FALSE( - absl::ParseTime("%Y-%m-%d", "-292277022657-01-27", utc, &t, nullptr)); - EXPECT_TRUE( - absl::ParseTime("%Y-%m-%d", "-292277022657-01-28", utc, &t, nullptr)); - EXPECT_TRUE( - absl::ParseTime("%Y-%m-%d", "292277026596-12-04", utc, &t, nullptr)); - EXPECT_FALSE( - absl::ParseTime("%Y-%m-%d", "292277026596-12-05", utc, &t, nullptr)); -} - -// -// Roundtrip test for FormatTime()/ParseTime(). -// - -TEST(FormatParse, RoundTrip) { - const absl::TimeZone lax = - absl::time_internal::LoadTimeZone("America/Los_Angeles"); - const absl::Time in = - absl::FromCivil(absl::CivilSecond(1977, 6, 28, 9, 8, 7), lax); - const absl::Duration subseconds = absl::Nanoseconds(654321); - std::string err; - - // RFC3339, which renders subseconds. - { - absl::Time out; - const std::string s = - absl::FormatTime(absl::RFC3339_full, in + subseconds, lax); - EXPECT_TRUE(absl::ParseTime(absl::RFC3339_full, s, &out, &err)) - << s << ": " << err; - EXPECT_EQ(in + subseconds, out); // RFC3339_full includes %Ez - } - - // RFC1123, which only does whole seconds. - { - absl::Time out; - const std::string s = absl::FormatTime(absl::RFC1123_full, in, lax); - EXPECT_TRUE(absl::ParseTime(absl::RFC1123_full, s, &out, &err)) - << s << ": " << err; - EXPECT_EQ(in, out); // RFC1123_full includes %z - } - - // `absl::FormatTime()` falls back to strftime() for "%c", which appears to - // work. On Windows, `absl::ParseTime()` falls back to std::get_time() which - // appears to fail on "%c" (or at least on the "%c" text produced by - // `strftime()`). This makes it fail the round-trip test. - // - // Under the emscripten compiler `absl::ParseTime() falls back to - // `strptime()`, but that ends up using a different definition for "%c" - // compared to `strftime()`, also causing the round-trip test to fail - // (see https://github.com/kripken/emscripten/pull/7491). -#if !defined(_MSC_VER) && !defined(__EMSCRIPTEN__) - // Even though we don't know what %c will produce, it should roundtrip, - // but only in the 0-offset timezone. - { - absl::Time out; - const std::string s = absl::FormatTime("%c", in, absl::UTCTimeZone()); - EXPECT_TRUE(absl::ParseTime("%c", s, &out, &err)) << s << ": " << err; - EXPECT_EQ(in, out); - } -#endif // !_MSC_VER && !__EMSCRIPTEN__ -} - -TEST(FormatParse, RoundTripDistantFuture) { - const absl::TimeZone tz = absl::UTCTimeZone(); - const absl::Time in = - absl::FromUnixSeconds(std::numeric_limits<int64_t>::max()); - std::string err; - - absl::Time out; - const std::string s = absl::FormatTime(absl::RFC3339_full, in, tz); - EXPECT_TRUE(absl::ParseTime(absl::RFC3339_full, s, &out, &err)) - << s << ": " << err; - EXPECT_EQ(in, out); -} - -TEST(FormatParse, RoundTripDistantPast) { - const absl::TimeZone tz = absl::UTCTimeZone(); - const absl::Time in = - absl::FromUnixSeconds(std::numeric_limits<int64_t>::min()); - std::string err; - - absl::Time out; - const std::string s = absl::FormatTime(absl::RFC3339_full, in, tz); - EXPECT_TRUE(absl::ParseTime(absl::RFC3339_full, s, &out, &err)) - << s << ": " << err; - EXPECT_EQ(in, out); -} - -} // namespace diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/BUILD.bazel b/third_party/abseil_cpp/absl/time/internal/cctz/BUILD.bazel deleted file mode 100644 index 7a53c815b9..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/BUILD.bazel +++ /dev/null @@ -1,166 +0,0 @@ -# Copyright 2016 Google Inc. All Rights Reserved. -# -# Licensed under the Apache License, Version 2.0 (the "License"); -# you may not use this file except in compliance with the License. -# You may obtain a copy of the License at -# -# https://www.apache.org/licenses/LICENSE-2.0 -# -# Unless required by applicable law or agreed to in writing, software -# distributed under the License is distributed on an "AS IS" BASIS, -# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -# See the License for the specific language governing permissions and -# limitations under the License. - -load("@rules_cc//cc:defs.bzl", "cc_library", "cc_test") - -package(features = ["-parse_headers"]) - -licenses(["notice"]) # Apache License - -filegroup( - name = "zoneinfo", - srcs = glob(["testdata/zoneinfo/**"]), -) - -config_setting( - name = "osx", - constraint_values = [ - "@bazel_tools//platforms:osx", - ], -) - -config_setting( - name = "ios", - constraint_values = [ - "@bazel_tools//platforms:ios", - ], -) - -### libraries - -cc_library( - name = "civil_time", - srcs = ["src/civil_time_detail.cc"], - hdrs = [ - "include/cctz/civil_time.h", - ], - textual_hdrs = ["include/cctz/civil_time_detail.h"], - visibility = ["//visibility:public"], - deps = ["//absl/base:config"], -) - -cc_library( - name = "time_zone", - srcs = [ - "src/time_zone_fixed.cc", - "src/time_zone_fixed.h", - "src/time_zone_format.cc", - "src/time_zone_if.cc", - "src/time_zone_if.h", - "src/time_zone_impl.cc", - "src/time_zone_impl.h", - "src/time_zone_info.cc", - "src/time_zone_info.h", - "src/time_zone_libc.cc", - "src/time_zone_libc.h", - "src/time_zone_lookup.cc", - "src/time_zone_posix.cc", - "src/time_zone_posix.h", - "src/tzfile.h", - "src/zone_info_source.cc", - ], - hdrs = [ - "include/cctz/time_zone.h", - "include/cctz/zone_info_source.h", - ], - linkopts = select({ - ":osx": [ - "-framework Foundation", - ], - ":ios": [ - "-framework Foundation", - ], - "//conditions:default": [], - }), - visibility = ["//visibility:public"], - deps = [ - ":civil_time", - "//absl/base:config", - ], -) - -### tests - -cc_test( - name = "civil_time_test", - size = "small", - srcs = ["src/civil_time_test.cc"], - deps = [ - ":civil_time", - "//absl/base:config", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "time_zone_format_test", - size = "small", - srcs = ["src/time_zone_format_test.cc"], - data = [":zoneinfo"], - tags = [ - "no_test_android_arm", - "no_test_android_arm64", - "no_test_android_x86", - ], - deps = [ - ":civil_time", - ":time_zone", - "//absl/base:config", - "@com_google_googletest//:gtest_main", - ], -) - -cc_test( - name = "time_zone_lookup_test", - size = "small", - timeout = "moderate", - srcs = ["src/time_zone_lookup_test.cc"], - data = [":zoneinfo"], - tags = [ - "no_test_android_arm", - "no_test_android_arm64", - "no_test_android_x86", - ], - deps = [ - ":civil_time", - ":time_zone", - "//absl/base:config", - "@com_google_googletest//:gtest_main", - ], -) - -### benchmarks - -cc_test( - name = "cctz_benchmark", - srcs = [ - "src/cctz_benchmark.cc", - "src/time_zone_if.h", - "src/time_zone_impl.h", - "src/time_zone_info.h", - "src/tzfile.h", - ], - linkstatic = 1, - tags = ["benchmark"], - deps = [ - ":civil_time", - ":time_zone", - "//absl/base:config", - "@com_github_google_benchmark//:benchmark_main", - ], -) - -### examples - -### binaries diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/include/cctz/civil_time.h b/third_party/abseil_cpp/absl/time/internal/cctz/include/cctz/civil_time.h deleted file mode 100644 index d47ff86fe4..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/include/cctz/civil_time.h +++ /dev/null @@ -1,332 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_H_ -#define ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_H_ - -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/civil_time_detail.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -// The term "civil time" refers to the legally recognized human-scale time -// that is represented by the six fields YYYY-MM-DD hh:mm:ss. Modern-day civil -// time follows the Gregorian Calendar and is a time-zone-independent concept. -// A "date" is perhaps the most common example of a civil time (represented in -// this library as cctz::civil_day). This library provides six classes and a -// handful of functions that help with rounding, iterating, and arithmetic on -// civil times while avoiding complications like daylight-saving time (DST). -// -// The following six classes form the core of this civil-time library: -// -// * civil_second -// * civil_minute -// * civil_hour -// * civil_day -// * civil_month -// * civil_year -// -// Each class is a simple value type with the same interface for construction -// and the same six accessors for each of the civil fields (year, month, day, -// hour, minute, and second, aka YMDHMS). These classes differ only in their -// alignment, which is indicated by the type name and specifies the field on -// which arithmetic operates. -// -// Each class can be constructed by passing up to six optional integer -// arguments representing the YMDHMS fields (in that order) to the -// constructor. Omitted fields are assigned their minimum valid value. Hours, -// minutes, and seconds will be set to 0, month and day will be set to 1, and -// since there is no minimum valid year, it will be set to 1970. So, a -// default-constructed civil-time object will have YMDHMS fields representing -// "1970-01-01 00:00:00". Fields that are out-of-range are normalized (e.g., -// October 32 -> November 1) so that all civil-time objects represent valid -// values. -// -// Each civil-time class is aligned to the civil-time field indicated in the -// class's name after normalization. Alignment is performed by setting all the -// inferior fields to their minimum valid value (as described above). The -// following are examples of how each of the six types would align the fields -// representing November 22, 2015 at 12:34:56 in the afternoon. (Note: the -// string format used here is not important; it's just a shorthand way of -// showing the six YMDHMS fields.) -// -// civil_second 2015-11-22 12:34:56 -// civil_minute 2015-11-22 12:34:00 -// civil_hour 2015-11-22 12:00:00 -// civil_day 2015-11-22 00:00:00 -// civil_month 2015-11-01 00:00:00 -// civil_year 2015-01-01 00:00:00 -// -// Each civil-time type performs arithmetic on the field to which it is -// aligned. This means that adding 1 to a civil_day increments the day field -// (normalizing as necessary), and subtracting 7 from a civil_month operates -// on the month field (normalizing as necessary). All arithmetic produces a -// valid civil time. Difference requires two similarly aligned civil-time -// objects and returns the scalar answer in units of the objects' alignment. -// For example, the difference between two civil_hour objects will give an -// answer in units of civil hours. -// -// In addition to the six civil-time types just described, there are -// a handful of helper functions and algorithms for performing common -// calculations. These are described below. -// -// Note: In C++14 and later, this library is usable in a constexpr context. -// -// CONSTRUCTION: -// -// Each of the civil-time types can be constructed in two ways: by directly -// passing to the constructor up to six (optional) integers representing the -// YMDHMS fields, or by copying the YMDHMS fields from a differently aligned -// civil-time type. -// -// civil_day default_value; // 1970-01-01 00:00:00 -// -// civil_day a(2015, 2, 3); // 2015-02-03 00:00:00 -// civil_day b(2015, 2, 3, 4, 5, 6); // 2015-02-03 00:00:00 -// civil_day c(2015); // 2015-01-01 00:00:00 -// -// civil_second ss(2015, 2, 3, 4, 5, 6); // 2015-02-03 04:05:06 -// civil_minute mm(ss); // 2015-02-03 04:05:00 -// civil_hour hh(mm); // 2015-02-03 04:00:00 -// civil_day d(hh); // 2015-02-03 00:00:00 -// civil_month m(d); // 2015-02-01 00:00:00 -// civil_year y(m); // 2015-01-01 00:00:00 -// -// m = civil_month(y); // 2015-01-01 00:00:00 -// d = civil_day(m); // 2015-01-01 00:00:00 -// hh = civil_hour(d); // 2015-01-01 00:00:00 -// mm = civil_minute(hh); // 2015-01-01 00:00:00 -// ss = civil_second(mm); // 2015-01-01 00:00:00 -// -// ALIGNMENT CONVERSION: -// -// The alignment of a civil-time object cannot change, but the object may be -// used to construct a new object with a different alignment. This is referred -// to as "realigning". When realigning to a type with the same or more -// precision (e.g., civil_day -> civil_second), the conversion may be -// performed implicitly since no information is lost. However, if information -// could be discarded (e.g., civil_second -> civil_day), the conversion must -// be explicit at the call site. -// -// void fun(const civil_day& day); -// -// civil_second cs; -// fun(cs); // Won't compile because data may be discarded -// fun(civil_day(cs)); // OK: explicit conversion -// -// civil_day cd; -// fun(cd); // OK: no conversion needed -// -// civil_month cm; -// fun(cm); // OK: implicit conversion to civil_day -// -// NORMALIZATION: -// -// Integer arguments passed to the constructor may be out-of-range, in which -// case they are normalized to produce a valid civil-time object. This enables -// natural arithmetic on constructor arguments without worrying about the -// field's range. Normalization guarantees that there are no invalid -// civil-time objects. -// -// civil_day d(2016, 10, 32); // Out-of-range day; normalized to 2016-11-01 -// -// Note: If normalization is undesired, you can signal an error by comparing -// the constructor arguments to the normalized values returned by the YMDHMS -// properties. -// -// PROPERTIES: -// -// All civil-time types have accessors for all six of the civil-time fields: -// year, month, day, hour, minute, and second. Recall that fields inferior to -// the type's alignment will be set to their minimum valid value. -// -// civil_day d(2015, 6, 28); -// // d.year() == 2015 -// // d.month() == 6 -// // d.day() == 28 -// // d.hour() == 0 -// // d.minute() == 0 -// // d.second() == 0 -// -// COMPARISON: -// -// Comparison always considers all six YMDHMS fields, regardless of the type's -// alignment. Comparison between differently aligned civil-time types is -// allowed. -// -// civil_day feb_3(2015, 2, 3); // 2015-02-03 00:00:00 -// civil_day mar_4(2015, 3, 4); // 2015-03-04 00:00:00 -// // feb_3 < mar_4 -// // civil_year(feb_3) == civil_year(mar_4) -// -// civil_second feb_3_noon(2015, 2, 3, 12, 0, 0); // 2015-02-03 12:00:00 -// // feb_3 < feb_3_noon -// // feb_3 == civil_day(feb_3_noon) -// -// // Iterates all the days of February 2015. -// for (civil_day d(2015, 2, 1); d < civil_month(2015, 3); ++d) { -// // ... -// } -// -// STREAMING: -// -// Each civil-time type may be sent to an output stream using operator<<(). -// The output format follows the pattern "YYYY-MM-DDThh:mm:ss" where fields -// inferior to the type's alignment are omitted. -// -// civil_second cs(2015, 2, 3, 4, 5, 6); -// std::cout << cs << "\n"; // Outputs: 2015-02-03T04:05:06 -// -// civil_day cd(cs); -// std::cout << cd << "\n"; // Outputs: 2015-02-03 -// -// civil_year cy(cs); -// std::cout << cy << "\n"; // Outputs: 2015 -// -// ARITHMETIC: -// -// Civil-time types support natural arithmetic operators such as addition, -// subtraction, and difference. Arithmetic operates on the civil-time field -// indicated in the type's name. Difference requires arguments with the same -// alignment and returns the answer in units of the alignment. -// -// civil_day a(2015, 2, 3); -// ++a; // 2015-02-04 00:00:00 -// --a; // 2015-02-03 00:00:00 -// civil_day b = a + 1; // 2015-02-04 00:00:00 -// civil_day c = 1 + b; // 2015-02-05 00:00:00 -// int n = c - a; // n = 2 (civil days) -// int m = c - civil_month(c); // Won't compile: different types. -// -// EXAMPLE: Adding a month to January 31. -// -// One of the classic questions that arises when considering a civil-time -// library (or a date library or a date/time library) is this: "What happens -// when you add a month to January 31?" This is an interesting question -// because there could be a number of possible answers: -// -// 1. March 3 (or 2 if a leap year). This may make sense if the operation -// wants the equivalent of February 31. -// 2. February 28 (or 29 if a leap year). This may make sense if the operation -// wants the last day of January to go to the last day of February. -// 3. Error. The caller may get some error, an exception, an invalid date -// object, or maybe false is returned. This may make sense because there is -// no single unambiguously correct answer to the question. -// -// Practically speaking, any answer that is not what the programmer intended -// is the wrong answer. -// -// This civil-time library avoids the problem by making it impossible to ask -// ambiguous questions. All civil-time objects are aligned to a particular -// civil-field boundary (such as aligned to a year, month, day, hour, minute, -// or second), and arithmetic operates on the field to which the object is -// aligned. This means that in order to "add a month" the object must first be -// aligned to a month boundary, which is equivalent to the first day of that -// month. -// -// Of course, there are ways to compute an answer the question at hand using -// this civil-time library, but they require the programmer to be explicit -// about the answer they expect. To illustrate, let's see how to compute all -// three of the above possible answers to the question of "Jan 31 plus 1 -// month": -// -// const civil_day d(2015, 1, 31); -// -// // Answer 1: -// // Add 1 to the month field in the constructor, and rely on normalization. -// const auto ans_normalized = civil_day(d.year(), d.month() + 1, d.day()); -// // ans_normalized == 2015-03-03 (aka Feb 31) -// -// // Answer 2: -// // Add 1 to month field, capping to the end of next month. -// const auto next_month = civil_month(d) + 1; -// const auto last_day_of_next_month = civil_day(next_month + 1) - 1; -// const auto ans_capped = std::min(ans_normalized, last_day_of_next_month); -// // ans_capped == 2015-02-28 -// -// // Answer 3: -// // Signal an error if the normalized answer is not in next month. -// if (civil_month(ans_normalized) != next_month) { -// // error, month overflow -// } -// -using civil_year = detail::civil_year; -using civil_month = detail::civil_month; -using civil_day = detail::civil_day; -using civil_hour = detail::civil_hour; -using civil_minute = detail::civil_minute; -using civil_second = detail::civil_second; - -// An enum class with members monday, tuesday, wednesday, thursday, friday, -// saturday, and sunday. These enum values may be sent to an output stream -// using operator<<(). The result is the full weekday name in English with a -// leading capital letter. -// -// weekday wd = weekday::thursday; -// std::cout << wd << "\n"; // Outputs: Thursday -// -using detail::weekday; - -// Returns the weekday for the given civil-time value. -// -// civil_day a(2015, 8, 13); -// weekday wd = get_weekday(a); // wd == weekday::thursday -// -using detail::get_weekday; - -// Returns the civil_day that strictly follows or precedes the given -// civil_day, and that falls on the given weekday. -// -// For example, given: -// -// August 2015 -// Su Mo Tu We Th Fr Sa -// 1 -// 2 3 4 5 6 7 8 -// 9 10 11 12 13 14 15 -// 16 17 18 19 20 21 22 -// 23 24 25 26 27 28 29 -// 30 31 -// -// civil_day a(2015, 8, 13); // get_weekday(a) == weekday::thursday -// civil_day b = next_weekday(a, weekday::thursday); // b = 2015-08-20 -// civil_day c = prev_weekday(a, weekday::thursday); // c = 2015-08-06 -// -// civil_day d = ... -// // Gets the following Thursday if d is not already Thursday -// civil_day thurs1 = next_weekday(d - 1, weekday::thursday); -// // Gets the previous Thursday if d is not already Thursday -// civil_day thurs2 = prev_weekday(d + 1, weekday::thursday); -// -using detail::next_weekday; -using detail::prev_weekday; - -// Returns the day-of-year for the given civil-time value. -// -// civil_day a(2015, 1, 1); -// int yd_jan_1 = get_yearday(a); // yd_jan_1 = 1 -// civil_day b(2015, 12, 31); -// int yd_dec_31 = get_yearday(b); // yd_dec_31 = 365 -// -using detail::get_yearday; - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_H_ diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/include/cctz/civil_time_detail.h b/third_party/abseil_cpp/absl/time/internal/cctz/include/cctz/civil_time_detail.h deleted file mode 100644 index d1b4222b1f..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/include/cctz/civil_time_detail.h +++ /dev/null @@ -1,632 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_DETAIL_H_ -#define ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_DETAIL_H_ - -#include <cstdint> -#include <limits> -#include <ostream> -#include <type_traits> - -#include "absl/base/config.h" - -// Disable constexpr support unless we are in C++14 mode. -#if __cpp_constexpr >= 201304 || (defined(_MSC_VER) && _MSC_VER >= 1910) -#define CONSTEXPR_D constexpr // data -#define CONSTEXPR_F constexpr // function -#define CONSTEXPR_M constexpr // member -#else -#define CONSTEXPR_D const -#define CONSTEXPR_F inline -#define CONSTEXPR_M -#endif - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -// Support years that at least span the range of 64-bit time_t values. -using year_t = std::int_fast64_t; - -// Type alias that indicates an argument is not normalized (e.g., the -// constructor parameters and operands/results of addition/subtraction). -using diff_t = std::int_fast64_t; - -namespace detail { - -// Type aliases that indicate normalized argument values. -using month_t = std::int_fast8_t; // [1:12] -using day_t = std::int_fast8_t; // [1:31] -using hour_t = std::int_fast8_t; // [0:23] -using minute_t = std::int_fast8_t; // [0:59] -using second_t = std::int_fast8_t; // [0:59] - -// Normalized civil-time fields: Y-M-D HH:MM:SS. -struct fields { - CONSTEXPR_M fields(year_t year, month_t month, day_t day, hour_t hour, - minute_t minute, second_t second) - : y(year), m(month), d(day), hh(hour), mm(minute), ss(second) {} - std::int_least64_t y; - std::int_least8_t m; - std::int_least8_t d; - std::int_least8_t hh; - std::int_least8_t mm; - std::int_least8_t ss; -}; - -struct second_tag {}; -struct minute_tag : second_tag {}; -struct hour_tag : minute_tag {}; -struct day_tag : hour_tag {}; -struct month_tag : day_tag {}; -struct year_tag : month_tag {}; - -//////////////////////////////////////////////////////////////////////// - -// Field normalization (without avoidable overflow). - -namespace impl { - -CONSTEXPR_F bool is_leap_year(year_t y) noexcept { - return y % 4 == 0 && (y % 100 != 0 || y % 400 == 0); -} -CONSTEXPR_F int year_index(year_t y, month_t m) noexcept { - return (static_cast<int>((y + (m > 2)) % 400) + 400) % 400; -} -CONSTEXPR_F int days_per_century(year_t y, month_t m) noexcept { - const int yi = year_index(y, m); - return 36524 + (yi == 0 || yi > 300); -} -CONSTEXPR_F int days_per_4years(year_t y, month_t m) noexcept { - const int yi = year_index(y, m); - return 1460 + (yi == 0 || yi > 300 || (yi - 1) % 100 < 96); -} -CONSTEXPR_F int days_per_year(year_t y, month_t m) noexcept { - return is_leap_year(y + (m > 2)) ? 366 : 365; -} -CONSTEXPR_F int days_per_month(year_t y, month_t m) noexcept { - CONSTEXPR_D int k_days_per_month[1 + 12] = { - -1, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 // non leap year - }; - return k_days_per_month[m] + (m == 2 && is_leap_year(y)); -} - -CONSTEXPR_F fields n_day(year_t y, month_t m, diff_t d, diff_t cd, hour_t hh, - minute_t mm, second_t ss) noexcept { - year_t ey = y % 400; - const year_t oey = ey; - ey += (cd / 146097) * 400; - cd %= 146097; - if (cd < 0) { - ey -= 400; - cd += 146097; - } - ey += (d / 146097) * 400; - d = d % 146097 + cd; - if (d > 0) { - if (d > 146097) { - ey += 400; - d -= 146097; - } - } else { - if (d > -365) { - // We often hit the previous year when stepping a civil time backwards, - // so special case it to avoid counting up by 100/4/1-year chunks. - ey -= 1; - d += days_per_year(ey, m); - } else { - ey -= 400; - d += 146097; - } - } - if (d > 365) { - for (;;) { - int n = days_per_century(ey, m); - if (d <= n) break; - d -= n; - ey += 100; - } - for (;;) { - int n = days_per_4years(ey, m); - if (d <= n) break; - d -= n; - ey += 4; - } - for (;;) { - int n = days_per_year(ey, m); - if (d <= n) break; - d -= n; - ++ey; - } - } - if (d > 28) { - for (;;) { - int n = days_per_month(ey, m); - if (d <= n) break; - d -= n; - if (++m > 12) { - ++ey; - m = 1; - } - } - } - return fields(y + (ey - oey), m, static_cast<day_t>(d), hh, mm, ss); -} -CONSTEXPR_F fields n_mon(year_t y, diff_t m, diff_t d, diff_t cd, hour_t hh, - minute_t mm, second_t ss) noexcept { - if (m != 12) { - y += m / 12; - m %= 12; - if (m <= 0) { - y -= 1; - m += 12; - } - } - return n_day(y, static_cast<month_t>(m), d, cd, hh, mm, ss); -} -CONSTEXPR_F fields n_hour(year_t y, diff_t m, diff_t d, diff_t cd, diff_t hh, - minute_t mm, second_t ss) noexcept { - cd += hh / 24; - hh %= 24; - if (hh < 0) { - cd -= 1; - hh += 24; - } - return n_mon(y, m, d, cd, static_cast<hour_t>(hh), mm, ss); -} -CONSTEXPR_F fields n_min(year_t y, diff_t m, diff_t d, diff_t hh, diff_t ch, - diff_t mm, second_t ss) noexcept { - ch += mm / 60; - mm %= 60; - if (mm < 0) { - ch -= 1; - mm += 60; - } - return n_hour(y, m, d, hh / 24 + ch / 24, hh % 24 + ch % 24, - static_cast<minute_t>(mm), ss); -} -CONSTEXPR_F fields n_sec(year_t y, diff_t m, diff_t d, diff_t hh, diff_t mm, - diff_t ss) noexcept { - // Optimization for when (non-constexpr) fields are already normalized. - if (0 <= ss && ss < 60) { - const second_t nss = static_cast<second_t>(ss); - if (0 <= mm && mm < 60) { - const minute_t nmm = static_cast<minute_t>(mm); - if (0 <= hh && hh < 24) { - const hour_t nhh = static_cast<hour_t>(hh); - if (1 <= d && d <= 28 && 1 <= m && m <= 12) { - const day_t nd = static_cast<day_t>(d); - const month_t nm = static_cast<month_t>(m); - return fields(y, nm, nd, nhh, nmm, nss); - } - return n_mon(y, m, d, 0, nhh, nmm, nss); - } - return n_hour(y, m, d, hh / 24, hh % 24, nmm, nss); - } - return n_min(y, m, d, hh, mm / 60, mm % 60, nss); - } - diff_t cm = ss / 60; - ss %= 60; - if (ss < 0) { - cm -= 1; - ss += 60; - } - return n_min(y, m, d, hh, mm / 60 + cm / 60, mm % 60 + cm % 60, - static_cast<second_t>(ss)); -} - -} // namespace impl - -//////////////////////////////////////////////////////////////////////// - -// Increments the indicated (normalized) field by "n". -CONSTEXPR_F fields step(second_tag, fields f, diff_t n) noexcept { - return impl::n_sec(f.y, f.m, f.d, f.hh, f.mm + n / 60, f.ss + n % 60); -} -CONSTEXPR_F fields step(minute_tag, fields f, diff_t n) noexcept { - return impl::n_min(f.y, f.m, f.d, f.hh + n / 60, 0, f.mm + n % 60, f.ss); -} -CONSTEXPR_F fields step(hour_tag, fields f, diff_t n) noexcept { - return impl::n_hour(f.y, f.m, f.d + n / 24, 0, f.hh + n % 24, f.mm, f.ss); -} -CONSTEXPR_F fields step(day_tag, fields f, diff_t n) noexcept { - return impl::n_day(f.y, f.m, f.d, n, f.hh, f.mm, f.ss); -} -CONSTEXPR_F fields step(month_tag, fields f, diff_t n) noexcept { - return impl::n_mon(f.y + n / 12, f.m + n % 12, f.d, 0, f.hh, f.mm, f.ss); -} -CONSTEXPR_F fields step(year_tag, fields f, diff_t n) noexcept { - return fields(f.y + n, f.m, f.d, f.hh, f.mm, f.ss); -} - -//////////////////////////////////////////////////////////////////////// - -namespace impl { - -// Returns (v * f + a) but avoiding intermediate overflow when possible. -CONSTEXPR_F diff_t scale_add(diff_t v, diff_t f, diff_t a) noexcept { - return (v < 0) ? ((v + 1) * f + a) - f : ((v - 1) * f + a) + f; -} - -// Map a (normalized) Y/M/D to the number of days before/after 1970-01-01. -// Probably overflows for years outside [-292277022656:292277026595]. -CONSTEXPR_F diff_t ymd_ord(year_t y, month_t m, day_t d) noexcept { - const diff_t eyear = (m <= 2) ? y - 1 : y; - const diff_t era = (eyear >= 0 ? eyear : eyear - 399) / 400; - const diff_t yoe = eyear - era * 400; - const diff_t doy = (153 * (m + (m > 2 ? -3 : 9)) + 2) / 5 + d - 1; - const diff_t doe = yoe * 365 + yoe / 4 - yoe / 100 + doy; - return era * 146097 + doe - 719468; -} - -// Returns the difference in days between two normalized Y-M-D tuples. -// ymd_ord() will encounter integer overflow given extreme year values, -// yet the difference between two such extreme values may actually be -// small, so we take a little care to avoid overflow when possible by -// exploiting the 146097-day cycle. -CONSTEXPR_F diff_t day_difference(year_t y1, month_t m1, day_t d1, year_t y2, - month_t m2, day_t d2) noexcept { - const diff_t a_c4_off = y1 % 400; - const diff_t b_c4_off = y2 % 400; - diff_t c4_diff = (y1 - a_c4_off) - (y2 - b_c4_off); - diff_t delta = ymd_ord(a_c4_off, m1, d1) - ymd_ord(b_c4_off, m2, d2); - if (c4_diff > 0 && delta < 0) { - delta += 2 * 146097; - c4_diff -= 2 * 400; - } else if (c4_diff < 0 && delta > 0) { - delta -= 2 * 146097; - c4_diff += 2 * 400; - } - return (c4_diff / 400 * 146097) + delta; -} - -} // namespace impl - -// Returns the difference between fields structs using the indicated unit. -CONSTEXPR_F diff_t difference(year_tag, fields f1, fields f2) noexcept { - return f1.y - f2.y; -} -CONSTEXPR_F diff_t difference(month_tag, fields f1, fields f2) noexcept { - return impl::scale_add(difference(year_tag{}, f1, f2), 12, (f1.m - f2.m)); -} -CONSTEXPR_F diff_t difference(day_tag, fields f1, fields f2) noexcept { - return impl::day_difference(f1.y, f1.m, f1.d, f2.y, f2.m, f2.d); -} -CONSTEXPR_F diff_t difference(hour_tag, fields f1, fields f2) noexcept { - return impl::scale_add(difference(day_tag{}, f1, f2), 24, (f1.hh - f2.hh)); -} -CONSTEXPR_F diff_t difference(minute_tag, fields f1, fields f2) noexcept { - return impl::scale_add(difference(hour_tag{}, f1, f2), 60, (f1.mm - f2.mm)); -} -CONSTEXPR_F diff_t difference(second_tag, fields f1, fields f2) noexcept { - return impl::scale_add(difference(minute_tag{}, f1, f2), 60, f1.ss - f2.ss); -} - -//////////////////////////////////////////////////////////////////////// - -// Aligns the (normalized) fields struct to the indicated field. -CONSTEXPR_F fields align(second_tag, fields f) noexcept { return f; } -CONSTEXPR_F fields align(minute_tag, fields f) noexcept { - return fields{f.y, f.m, f.d, f.hh, f.mm, 0}; -} -CONSTEXPR_F fields align(hour_tag, fields f) noexcept { - return fields{f.y, f.m, f.d, f.hh, 0, 0}; -} -CONSTEXPR_F fields align(day_tag, fields f) noexcept { - return fields{f.y, f.m, f.d, 0, 0, 0}; -} -CONSTEXPR_F fields align(month_tag, fields f) noexcept { - return fields{f.y, f.m, 1, 0, 0, 0}; -} -CONSTEXPR_F fields align(year_tag, fields f) noexcept { - return fields{f.y, 1, 1, 0, 0, 0}; -} - -//////////////////////////////////////////////////////////////////////// - -namespace impl { - -template <typename H> -H AbslHashValueImpl(second_tag, H h, fields f) { - return H::combine(std::move(h), f.y, f.m, f.d, f.hh, f.mm, f.ss); -} -template <typename H> -H AbslHashValueImpl(minute_tag, H h, fields f) { - return H::combine(std::move(h), f.y, f.m, f.d, f.hh, f.mm); -} -template <typename H> -H AbslHashValueImpl(hour_tag, H h, fields f) { - return H::combine(std::move(h), f.y, f.m, f.d, f.hh); -} -template <typename H> -H AbslHashValueImpl(day_tag, H h, fields f) { - return H::combine(std::move(h), f.y, f.m, f.d); -} -template <typename H> -H AbslHashValueImpl(month_tag, H h, fields f) { - return H::combine(std::move(h), f.y, f.m); -} -template <typename H> -H AbslHashValueImpl(year_tag, H h, fields f) { - return H::combine(std::move(h), f.y); -} - -} // namespace impl - -//////////////////////////////////////////////////////////////////////// - -template <typename T> -class civil_time { - public: - explicit CONSTEXPR_M civil_time(year_t y, diff_t m = 1, diff_t d = 1, - diff_t hh = 0, diff_t mm = 0, - diff_t ss = 0) noexcept - : civil_time(impl::n_sec(y, m, d, hh, mm, ss)) {} - - CONSTEXPR_M civil_time() noexcept : f_{1970, 1, 1, 0, 0, 0} {} - civil_time(const civil_time&) = default; - civil_time& operator=(const civil_time&) = default; - - // Conversion between civil times of different alignment. Conversion to - // a more precise alignment is allowed implicitly (e.g., day -> hour), - // but conversion where information is discarded must be explicit - // (e.g., second -> minute). - template <typename U, typename S> - using preserves_data = - typename std::enable_if<std::is_base_of<U, S>::value>::type; - template <typename U> - CONSTEXPR_M civil_time(const civil_time<U>& ct, - preserves_data<T, U>* = nullptr) noexcept - : civil_time(ct.f_) {} - template <typename U> - explicit CONSTEXPR_M civil_time(const civil_time<U>& ct, - preserves_data<U, T>* = nullptr) noexcept - : civil_time(ct.f_) {} - - // Factories for the maximum/minimum representable civil_time. - static CONSTEXPR_F civil_time(max)() { - const auto max_year = (std::numeric_limits<std::int_least64_t>::max)(); - return civil_time(max_year, 12, 31, 23, 59, 59); - } - static CONSTEXPR_F civil_time(min)() { - const auto min_year = (std::numeric_limits<std::int_least64_t>::min)(); - return civil_time(min_year, 1, 1, 0, 0, 0); - } - - // Field accessors. Note: All but year() return an int. - CONSTEXPR_M year_t year() const noexcept { return f_.y; } - CONSTEXPR_M int month() const noexcept { return f_.m; } - CONSTEXPR_M int day() const noexcept { return f_.d; } - CONSTEXPR_M int hour() const noexcept { return f_.hh; } - CONSTEXPR_M int minute() const noexcept { return f_.mm; } - CONSTEXPR_M int second() const noexcept { return f_.ss; } - - // Assigning arithmetic. - CONSTEXPR_M civil_time& operator+=(diff_t n) noexcept { - f_ = step(T{}, f_, n); - return *this; - } - CONSTEXPR_M civil_time& operator-=(diff_t n) noexcept { - if (n != (std::numeric_limits<diff_t>::min)()) { - f_ = step(T{}, f_, -n); - } else { - f_ = step(T{}, step(T{}, f_, -(n + 1)), 1); - } - return *this; - } - CONSTEXPR_M civil_time& operator++() noexcept { return *this += 1; } - CONSTEXPR_M civil_time operator++(int) noexcept { - const civil_time a = *this; - ++*this; - return a; - } - CONSTEXPR_M civil_time& operator--() noexcept { return *this -= 1; } - CONSTEXPR_M civil_time operator--(int) noexcept { - const civil_time a = *this; - --*this; - return a; - } - - // Binary arithmetic operators. - friend CONSTEXPR_F civil_time operator+(civil_time a, diff_t n) noexcept { - return a += n; - } - friend CONSTEXPR_F civil_time operator+(diff_t n, civil_time a) noexcept { - return a += n; - } - friend CONSTEXPR_F civil_time operator-(civil_time a, diff_t n) noexcept { - return a -= n; - } - friend CONSTEXPR_F diff_t operator-(civil_time lhs, civil_time rhs) noexcept { - return difference(T{}, lhs.f_, rhs.f_); - } - - template <typename H> - friend H AbslHashValue(H h, civil_time a) { - return impl::AbslHashValueImpl(T{}, std::move(h), a.f_); - } - - private: - // All instantiations of this template are allowed to call the following - // private constructor and access the private fields member. - template <typename U> - friend class civil_time; - - // The designated constructor that all others eventually call. - explicit CONSTEXPR_M civil_time(fields f) noexcept : f_(align(T{}, f)) {} - - fields f_; -}; - -// Disallows difference between differently aligned types. -// auto n = civil_day(...) - civil_hour(...); // would be confusing. -template <typename T, typename U> -CONSTEXPR_F diff_t operator-(civil_time<T>, civil_time<U>) = delete; - -using civil_year = civil_time<year_tag>; -using civil_month = civil_time<month_tag>; -using civil_day = civil_time<day_tag>; -using civil_hour = civil_time<hour_tag>; -using civil_minute = civil_time<minute_tag>; -using civil_second = civil_time<second_tag>; - -//////////////////////////////////////////////////////////////////////// - -// Relational operators that work with differently aligned objects. -// Always compares all six fields. -template <typename T1, typename T2> -CONSTEXPR_F bool operator<(const civil_time<T1>& lhs, - const civil_time<T2>& rhs) noexcept { - return ( - lhs.year() < rhs.year() || - (lhs.year() == rhs.year() && - (lhs.month() < rhs.month() || - (lhs.month() == rhs.month() && - (lhs.day() < rhs.day() || (lhs.day() == rhs.day() && - (lhs.hour() < rhs.hour() || - (lhs.hour() == rhs.hour() && - (lhs.minute() < rhs.minute() || - (lhs.minute() == rhs.minute() && - (lhs.second() < rhs.second()))))))))))); -} -template <typename T1, typename T2> -CONSTEXPR_F bool operator<=(const civil_time<T1>& lhs, - const civil_time<T2>& rhs) noexcept { - return !(rhs < lhs); -} -template <typename T1, typename T2> -CONSTEXPR_F bool operator>=(const civil_time<T1>& lhs, - const civil_time<T2>& rhs) noexcept { - return !(lhs < rhs); -} -template <typename T1, typename T2> -CONSTEXPR_F bool operator>(const civil_time<T1>& lhs, - const civil_time<T2>& rhs) noexcept { - return rhs < lhs; -} -template <typename T1, typename T2> -CONSTEXPR_F bool operator==(const civil_time<T1>& lhs, - const civil_time<T2>& rhs) noexcept { - return lhs.year() == rhs.year() && lhs.month() == rhs.month() && - lhs.day() == rhs.day() && lhs.hour() == rhs.hour() && - lhs.minute() == rhs.minute() && lhs.second() == rhs.second(); -} -template <typename T1, typename T2> -CONSTEXPR_F bool operator!=(const civil_time<T1>& lhs, - const civil_time<T2>& rhs) noexcept { - return !(lhs == rhs); -} - -//////////////////////////////////////////////////////////////////////// - -enum class weekday { - monday, - tuesday, - wednesday, - thursday, - friday, - saturday, - sunday, -}; - -CONSTEXPR_F weekday get_weekday(const civil_second& cs) noexcept { - CONSTEXPR_D weekday k_weekday_by_mon_off[13] = { - weekday::monday, weekday::tuesday, weekday::wednesday, - weekday::thursday, weekday::friday, weekday::saturday, - weekday::sunday, weekday::monday, weekday::tuesday, - weekday::wednesday, weekday::thursday, weekday::friday, - weekday::saturday, - }; - CONSTEXPR_D int k_weekday_offsets[1 + 12] = { - -1, 0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4, - }; - year_t wd = 2400 + (cs.year() % 400) - (cs.month() < 3); - wd += wd / 4 - wd / 100 + wd / 400; - wd += k_weekday_offsets[cs.month()] + cs.day(); - return k_weekday_by_mon_off[wd % 7 + 6]; -} - -//////////////////////////////////////////////////////////////////////// - -CONSTEXPR_F civil_day next_weekday(civil_day cd, weekday wd) noexcept { - CONSTEXPR_D weekday k_weekdays_forw[14] = { - weekday::monday, weekday::tuesday, weekday::wednesday, - weekday::thursday, weekday::friday, weekday::saturday, - weekday::sunday, weekday::monday, weekday::tuesday, - weekday::wednesday, weekday::thursday, weekday::friday, - weekday::saturday, weekday::sunday, - }; - weekday base = get_weekday(cd); - for (int i = 0;; ++i) { - if (base == k_weekdays_forw[i]) { - for (int j = i + 1;; ++j) { - if (wd == k_weekdays_forw[j]) { - return cd + (j - i); - } - } - } - } -} - -CONSTEXPR_F civil_day prev_weekday(civil_day cd, weekday wd) noexcept { - CONSTEXPR_D weekday k_weekdays_back[14] = { - weekday::sunday, weekday::saturday, weekday::friday, - weekday::thursday, weekday::wednesday, weekday::tuesday, - weekday::monday, weekday::sunday, weekday::saturday, - weekday::friday, weekday::thursday, weekday::wednesday, - weekday::tuesday, weekday::monday, - }; - weekday base = get_weekday(cd); - for (int i = 0;; ++i) { - if (base == k_weekdays_back[i]) { - for (int j = i + 1;; ++j) { - if (wd == k_weekdays_back[j]) { - return cd - (j - i); - } - } - } - } -} - -CONSTEXPR_F int get_yearday(const civil_second& cs) noexcept { - CONSTEXPR_D int k_month_offsets[1 + 12] = { - -1, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, - }; - const int feb29 = (cs.month() > 2 && impl::is_leap_year(cs.year())); - return k_month_offsets[cs.month()] + feb29 + cs.day(); -} - -//////////////////////////////////////////////////////////////////////// - -std::ostream& operator<<(std::ostream& os, const civil_year& y); -std::ostream& operator<<(std::ostream& os, const civil_month& m); -std::ostream& operator<<(std::ostream& os, const civil_day& d); -std::ostream& operator<<(std::ostream& os, const civil_hour& h); -std::ostream& operator<<(std::ostream& os, const civil_minute& m); -std::ostream& operator<<(std::ostream& os, const civil_second& s); -std::ostream& operator<<(std::ostream& os, weekday wd); - -} // namespace detail -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -#undef CONSTEXPR_M -#undef CONSTEXPR_F -#undef CONSTEXPR_D - -#endif // ABSL_TIME_INTERNAL_CCTZ_CIVIL_TIME_DETAIL_H_ diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/include/cctz/time_zone.h b/third_party/abseil_cpp/absl/time/internal/cctz/include/cctz/time_zone.h deleted file mode 100644 index 5562a37bc8..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/include/cctz/time_zone.h +++ /dev/null @@ -1,386 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// A library for translating between absolute times (represented by -// std::chrono::time_points of the std::chrono::system_clock) and civil -// times (represented by cctz::civil_second) using the rules defined by -// a time zone (cctz::time_zone). - -#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_H_ -#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_H_ - -#include <chrono> -#include <cstdint> -#include <string> -#include <utility> - -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/civil_time.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -// Convenience aliases. Not intended as public API points. -template <typename D> -using time_point = std::chrono::time_point<std::chrono::system_clock, D>; -using seconds = std::chrono::duration<std::int_fast64_t>; -using sys_seconds = seconds; // Deprecated. Use cctz::seconds instead. - -namespace detail { -template <typename D> -inline std::pair<time_point<seconds>, D> split_seconds( - const time_point<D>& tp) { - auto sec = std::chrono::time_point_cast<seconds>(tp); - auto sub = tp - sec; - if (sub.count() < 0) { - sec -= seconds(1); - sub += seconds(1); - } - return {sec, std::chrono::duration_cast<D>(sub)}; -} -inline std::pair<time_point<seconds>, seconds> split_seconds( - const time_point<seconds>& tp) { - return {tp, seconds::zero()}; -} -} // namespace detail - -// cctz::time_zone is an opaque, small, value-type class representing a -// geo-political region within which particular rules are used for mapping -// between absolute and civil times. Time zones are named using the TZ -// identifiers from the IANA Time Zone Database, such as "America/Los_Angeles" -// or "Australia/Sydney". Time zones are created from factory functions such -// as load_time_zone(). Note: strings like "PST" and "EDT" are not valid TZ -// identifiers. -// -// Example: -// cctz::time_zone utc = cctz::utc_time_zone(); -// cctz::time_zone pst = cctz::fixed_time_zone(std::chrono::hours(-8)); -// cctz::time_zone loc = cctz::local_time_zone(); -// cctz::time_zone lax; -// if (!cctz::load_time_zone("America/Los_Angeles", &lax)) { ... } -// -// See also: -// - http://www.iana.org/time-zones -// - https://en.wikipedia.org/wiki/Zoneinfo -class time_zone { - public: - time_zone() : time_zone(nullptr) {} // Equivalent to UTC - time_zone(const time_zone&) = default; - time_zone& operator=(const time_zone&) = default; - - std::string name() const; - - // An absolute_lookup represents the civil time (cctz::civil_second) within - // this time_zone at the given absolute time (time_point). There are - // additionally a few other fields that may be useful when working with - // older APIs, such as std::tm. - // - // Example: - // const cctz::time_zone tz = ... - // const auto tp = std::chrono::system_clock::now(); - // const cctz::time_zone::absolute_lookup al = tz.lookup(tp); - struct absolute_lookup { - civil_second cs; - // Note: The following fields exist for backward compatibility with older - // APIs. Accessing these fields directly is a sign of imprudent logic in - // the calling code. Modern time-related code should only access this data - // indirectly by way of cctz::format(). - int offset; // civil seconds east of UTC - bool is_dst; // is offset non-standard? - const char* abbr; // time-zone abbreviation (e.g., "PST") - }; - absolute_lookup lookup(const time_point<seconds>& tp) const; - template <typename D> - absolute_lookup lookup(const time_point<D>& tp) const { - return lookup(detail::split_seconds(tp).first); - } - - // A civil_lookup represents the absolute time(s) (time_point) that - // correspond to the given civil time (cctz::civil_second) within this - // time_zone. Usually the given civil time represents a unique instant - // in time, in which case the conversion is unambiguous. However, - // within this time zone, the given civil time may be skipped (e.g., - // during a positive UTC offset shift), or repeated (e.g., during a - // negative UTC offset shift). To account for these possibilities, - // civil_lookup is richer than just a single time_point. - // - // In all cases the civil_lookup::kind enum will indicate the nature - // of the given civil-time argument, and the pre, trans, and post - // members will give the absolute time answers using the pre-transition - // offset, the transition point itself, and the post-transition offset, - // respectively (all three times are equal if kind == UNIQUE). If any - // of these three absolute times is outside the representable range of a - // time_point<seconds> the field is set to its maximum/minimum value. - // - // Example: - // cctz::time_zone lax; - // if (!cctz::load_time_zone("America/Los_Angeles", &lax)) { ... } - // - // // A unique civil time. - // auto jan01 = lax.lookup(cctz::civil_second(2011, 1, 1, 0, 0, 0)); - // // jan01.kind == cctz::time_zone::civil_lookup::UNIQUE - // // jan01.pre is 2011/01/01 00:00:00 -0800 - // // jan01.trans is 2011/01/01 00:00:00 -0800 - // // jan01.post is 2011/01/01 00:00:00 -0800 - // - // // A Spring DST transition, when there is a gap in civil time. - // auto mar13 = lax.lookup(cctz::civil_second(2011, 3, 13, 2, 15, 0)); - // // mar13.kind == cctz::time_zone::civil_lookup::SKIPPED - // // mar13.pre is 2011/03/13 03:15:00 -0700 - // // mar13.trans is 2011/03/13 03:00:00 -0700 - // // mar13.post is 2011/03/13 01:15:00 -0800 - // - // // A Fall DST transition, when civil times are repeated. - // auto nov06 = lax.lookup(cctz::civil_second(2011, 11, 6, 1, 15, 0)); - // // nov06.kind == cctz::time_zone::civil_lookup::REPEATED - // // nov06.pre is 2011/11/06 01:15:00 -0700 - // // nov06.trans is 2011/11/06 01:00:00 -0800 - // // nov06.post is 2011/11/06 01:15:00 -0800 - struct civil_lookup { - enum civil_kind { - UNIQUE, // the civil time was singular (pre == trans == post) - SKIPPED, // the civil time did not exist (pre >= trans > post) - REPEATED, // the civil time was ambiguous (pre < trans <= post) - } kind; - time_point<seconds> pre; // uses the pre-transition offset - time_point<seconds> trans; // instant of civil-offset change - time_point<seconds> post; // uses the post-transition offset - }; - civil_lookup lookup(const civil_second& cs) const; - - // Finds the time of the next/previous offset change in this time zone. - // - // By definition, next_transition(tp, &trans) returns false when tp has - // its maximum value, and prev_transition(tp, &trans) returns false - // when tp has its minimum value. If the zone has no transitions, the - // result will also be false no matter what the argument. - // - // Otherwise, when tp has its minimum value, next_transition(tp, &trans) - // returns true and sets trans to the first recorded transition. Chains - // of calls to next_transition()/prev_transition() will eventually return - // false, but it is unspecified exactly when next_transition(tp, &trans) - // jumps to false, or what time is set by prev_transition(tp, &trans) for - // a very distant tp. - // - // Note: Enumeration of time-zone transitions is for informational purposes - // only. Modern time-related code should not care about when offset changes - // occur. - // - // Example: - // cctz::time_zone nyc; - // if (!cctz::load_time_zone("America/New_York", &nyc)) { ... } - // const auto now = std::chrono::system_clock::now(); - // auto tp = cctz::time_point<cctz::seconds>::min(); - // cctz::time_zone::civil_transition trans; - // while (tp <= now && nyc.next_transition(tp, &trans)) { - // // transition: trans.from -> trans.to - // tp = nyc.lookup(trans.to).trans; - // } - struct civil_transition { - civil_second from; // the civil time we jump from - civil_second to; // the civil time we jump to - }; - bool next_transition(const time_point<seconds>& tp, - civil_transition* trans) const; - template <typename D> - bool next_transition(const time_point<D>& tp, civil_transition* trans) const { - return next_transition(detail::split_seconds(tp).first, trans); - } - bool prev_transition(const time_point<seconds>& tp, - civil_transition* trans) const; - template <typename D> - bool prev_transition(const time_point<D>& tp, civil_transition* trans) const { - return prev_transition(detail::split_seconds(tp).first, trans); - } - - // version() and description() provide additional information about the - // time zone. The content of each of the returned strings is unspecified, - // however, when the IANA Time Zone Database is the underlying data source - // the version() string will be in the familar form (e.g, "2018e") or - // empty when unavailable. - // - // Note: These functions are for informational or testing purposes only. - std::string version() const; // empty when unknown - std::string description() const; - - // Relational operators. - friend bool operator==(time_zone lhs, time_zone rhs) { - return &lhs.effective_impl() == &rhs.effective_impl(); - } - friend bool operator!=(time_zone lhs, time_zone rhs) { return !(lhs == rhs); } - - template <typename H> - friend H AbslHashValue(H h, time_zone tz) { - return H::combine(std::move(h), &tz.effective_impl()); - } - - class Impl; - - private: - explicit time_zone(const Impl* impl) : impl_(impl) {} - const Impl& effective_impl() const; // handles implicit UTC - const Impl* impl_; -}; - -// Loads the named time zone. May perform I/O on the initial load. -// If the name is invalid, or some other kind of error occurs, returns -// false and "*tz" is set to the UTC time zone. -bool load_time_zone(const std::string& name, time_zone* tz); - -// Returns a time_zone representing UTC. Cannot fail. -time_zone utc_time_zone(); - -// Returns a time zone that is a fixed offset (seconds east) from UTC. -// Note: If the absolute value of the offset is greater than 24 hours -// you'll get UTC (i.e., zero offset) instead. -time_zone fixed_time_zone(const seconds& offset); - -// Returns a time zone representing the local time zone. Falls back to UTC. -// Note: local_time_zone.name() may only be something like "localtime". -time_zone local_time_zone(); - -// Returns the civil time (cctz::civil_second) within the given time zone at -// the given absolute time (time_point). Since the additional fields provided -// by the time_zone::absolute_lookup struct should rarely be needed in modern -// code, this convert() function is simpler and should be preferred. -template <typename D> -inline civil_second convert(const time_point<D>& tp, const time_zone& tz) { - return tz.lookup(tp).cs; -} - -// Returns the absolute time (time_point) that corresponds to the given civil -// time within the given time zone. If the civil time is not unique (i.e., if -// it was either repeated or non-existent), then the returned time_point is -// the best estimate that preserves relative order. That is, this function -// guarantees that if cs1 < cs2, then convert(cs1, tz) <= convert(cs2, tz). -inline time_point<seconds> convert(const civil_second& cs, - const time_zone& tz) { - const time_zone::civil_lookup cl = tz.lookup(cs); - if (cl.kind == time_zone::civil_lookup::SKIPPED) return cl.trans; - return cl.pre; -} - -namespace detail { -using femtoseconds = std::chrono::duration<std::int_fast64_t, std::femto>; -std::string format(const std::string&, const time_point<seconds>&, - const femtoseconds&, const time_zone&); -bool parse(const std::string&, const std::string&, const time_zone&, - time_point<seconds>*, femtoseconds*, std::string* err = nullptr); -} // namespace detail - -// Formats the given time_point in the given cctz::time_zone according to -// the provided format string. Uses strftime()-like formatting options, -// with the following extensions: -// -// - %Ez - RFC3339-compatible numeric UTC offset (+hh:mm or -hh:mm) -// - %E*z - Full-resolution numeric UTC offset (+hh:mm:ss or -hh:mm:ss) -// - %E#S - Seconds with # digits of fractional precision -// - %E*S - Seconds with full fractional precision (a literal '*') -// - %E#f - Fractional seconds with # digits of precision -// - %E*f - Fractional seconds with full precision (a literal '*') -// - %E4Y - Four-character years (-999 ... -001, 0000, 0001 ... 9999) -// - %ET - The RFC3339 "date-time" separator "T" -// -// Note that %E0S behaves like %S, and %E0f produces no characters. In -// contrast %E*f always produces at least one digit, which may be '0'. -// -// Note that %Y produces as many characters as it takes to fully render the -// year. A year outside of [-999:9999] when formatted with %E4Y will produce -// more than four characters, just like %Y. -// -// Tip: Format strings should include the UTC offset (e.g., %z, %Ez, or %E*z) -// so that the resulting string uniquely identifies an absolute time. -// -// Example: -// cctz::time_zone lax; -// if (!cctz::load_time_zone("America/Los_Angeles", &lax)) { ... } -// auto tp = cctz::convert(cctz::civil_second(2013, 1, 2, 3, 4, 5), lax); -// std::string f = cctz::format("%H:%M:%S", tp, lax); // "03:04:05" -// f = cctz::format("%H:%M:%E3S", tp, lax); // "03:04:05.000" -template <typename D> -inline std::string format(const std::string& fmt, const time_point<D>& tp, - const time_zone& tz) { - const auto p = detail::split_seconds(tp); - const auto n = std::chrono::duration_cast<detail::femtoseconds>(p.second); - return detail::format(fmt, p.first, n, tz); -} - -// Parses an input string according to the provided format string and -// returns the corresponding time_point. Uses strftime()-like formatting -// options, with the same extensions as cctz::format(), but with the -// exceptions that %E#S is interpreted as %E*S, and %E#f as %E*f. %Ez -// and %E*z also accept the same inputs, which (along with %z) includes -// 'z' and 'Z' as synonyms for +00:00. %ET accepts either 'T' or 't'. -// -// %Y consumes as many numeric characters as it can, so the matching data -// should always be terminated with a non-numeric. %E4Y always consumes -// exactly four characters, including any sign. -// -// Unspecified fields are taken from the default date and time of ... -// -// "1970-01-01 00:00:00.0 +0000" -// -// For example, parsing a string of "15:45" (%H:%M) will return a time_point -// that represents "1970-01-01 15:45:00.0 +0000". -// -// Note that parse() returns time instants, so it makes most sense to parse -// fully-specified date/time strings that include a UTC offset (%z, %Ez, or -// %E*z). -// -// Note also that parse() only heeds the fields year, month, day, hour, -// minute, (fractional) second, and UTC offset. Other fields, like weekday (%a -// or %A), while parsed for syntactic validity, are ignored in the conversion. -// -// Date and time fields that are out-of-range will be treated as errors rather -// than normalizing them like cctz::civil_second() would do. For example, it -// is an error to parse the date "Oct 32, 2013" because 32 is out of range. -// -// A second of ":60" is normalized to ":00" of the following minute with -// fractional seconds discarded. The following table shows how the given -// seconds and subseconds will be parsed: -// -// "59.x" -> 59.x // exact -// "60.x" -> 00.0 // normalized -// "00.x" -> 00.x // exact -// -// Errors are indicated by returning false. -// -// Example: -// const cctz::time_zone tz = ... -// std::chrono::system_clock::time_point tp; -// if (cctz::parse("%Y-%m-%d", "2015-10-09", tz, &tp)) { -// ... -// } -template <typename D> -inline bool parse(const std::string& fmt, const std::string& input, - const time_zone& tz, time_point<D>* tpp) { - time_point<seconds> sec; - detail::femtoseconds fs; - const bool b = detail::parse(fmt, input, tz, &sec, &fs); - if (b) { - // TODO: Return false if unrepresentable as a time_point<D>. - *tpp = std::chrono::time_point_cast<D>(sec); - *tpp += std::chrono::duration_cast<D>(fs); - } - return b; -} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_H_ diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/include/cctz/zone_info_source.h b/third_party/abseil_cpp/absl/time/internal/cctz/include/cctz/zone_info_source.h deleted file mode 100644 index 012eb4ec30..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/include/cctz/zone_info_source.h +++ /dev/null @@ -1,102 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_TIME_INTERNAL_CCTZ_ZONE_INFO_SOURCE_H_ -#define ABSL_TIME_INTERNAL_CCTZ_ZONE_INFO_SOURCE_H_ - -#include <cstddef> -#include <functional> -#include <memory> -#include <string> - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -// A stdio-like interface for providing zoneinfo data for a particular zone. -class ZoneInfoSource { - public: - virtual ~ZoneInfoSource(); - - virtual std::size_t Read(void* ptr, std::size_t size) = 0; // like fread() - virtual int Skip(std::size_t offset) = 0; // like fseek() - - // Until the zoneinfo data supports versioning information, we provide - // a way for a ZoneInfoSource to indicate it out-of-band. The default - // implementation returns an empty string. - virtual std::string Version() const; -}; - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz_extension { - -// A function-pointer type for a factory that returns a ZoneInfoSource -// given the name of a time zone and a fallback factory. Returns null -// when the data for the named zone cannot be found. -using ZoneInfoSourceFactory = - std::unique_ptr<absl::time_internal::cctz::ZoneInfoSource> (*)( - const std::string&, - const std::function<std::unique_ptr< - absl::time_internal::cctz::ZoneInfoSource>(const std::string&)>&); - -// The user can control the mapping of zone names to zoneinfo data by -// providing a definition for cctz_extension::zone_info_source_factory. -// For example, given functions my_factory() and my_other_factory() that -// can return a ZoneInfoSource for a named zone, we could inject them into -// cctz::load_time_zone() with: -// -// namespace cctz_extension { -// namespace { -// std::unique_ptr<cctz::ZoneInfoSource> CustomFactory( -// const std::string& name, -// const std::function<std::unique_ptr<cctz::ZoneInfoSource>( -// const std::string& name)>& fallback_factory) { -// if (auto zip = my_factory(name)) return zip; -// if (auto zip = fallback_factory(name)) return zip; -// if (auto zip = my_other_factory(name)) return zip; -// return nullptr; -// } -// } // namespace -// ZoneInfoSourceFactory zone_info_source_factory = CustomFactory; -// } // namespace cctz_extension -// -// This might be used, say, to use zoneinfo data embedded in the program, -// or read from a (possibly compressed) file archive, or both. -// -// cctz_extension::zone_info_source_factory() will be called: -// (1) from the same thread as the cctz::load_time_zone() call, -// (2) only once for any zone name, and -// (3) serially (i.e., no concurrent execution). -// -// The fallback factory obtains zoneinfo data by reading files in ${TZDIR}, -// and it is used automatically when no zone_info_source_factory definition -// is linked into the program. -extern ZoneInfoSourceFactory zone_info_source_factory; - -} // namespace cctz_extension -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_TIME_INTERNAL_CCTZ_ZONE_INFO_SOURCE_H_ diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/cctz_benchmark.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/cctz_benchmark.cc deleted file mode 100644 index 4e39188ff3..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/cctz_benchmark.cc +++ /dev/null @@ -1,1030 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include <algorithm> -#include <cassert> -#include <chrono> -#include <ctime> -#include <random> -#include <string> -#include <vector> - -#include "benchmark/benchmark.h" -#include "absl/time/internal/cctz/include/cctz/civil_time.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" -#include "time_zone_impl.h" - -namespace { - -namespace cctz = absl::time_internal::cctz; - -void BM_Difference_Days(benchmark::State& state) { - const cctz::civil_day c(2014, 8, 22); - const cctz::civil_day epoch(1970, 1, 1); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(c - epoch); - } -} -BENCHMARK(BM_Difference_Days); - -void BM_Step_Days(benchmark::State& state) { - const cctz::civil_day kStart(2014, 8, 22); - cctz::civil_day c = kStart; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(++c); - } -} -BENCHMARK(BM_Step_Days); - -void BM_GetWeekday(benchmark::State& state) { - const cctz::civil_day c(2014, 8, 22); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::get_weekday(c)); - } -} -BENCHMARK(BM_GetWeekday); - -void BM_NextWeekday(benchmark::State& state) { - const cctz::civil_day kStart(2014, 8, 22); - const cctz::civil_day kDays[7] = { - kStart + 0, kStart + 1, kStart + 2, kStart + 3, - kStart + 4, kStart + 5, kStart + 6, - }; - const cctz::weekday kWeekdays[7] = { - cctz::weekday::monday, cctz::weekday::tuesday, cctz::weekday::wednesday, - cctz::weekday::thursday, cctz::weekday::friday, cctz::weekday::saturday, - cctz::weekday::sunday, - }; - while (state.KeepRunningBatch(7 * 7)) { - for (const auto from : kDays) { - for (const auto to : kWeekdays) { - benchmark::DoNotOptimize(cctz::next_weekday(from, to)); - } - } - } -} -BENCHMARK(BM_NextWeekday); - -void BM_PrevWeekday(benchmark::State& state) { - const cctz::civil_day kStart(2014, 8, 22); - const cctz::civil_day kDays[7] = { - kStart + 0, kStart + 1, kStart + 2, kStart + 3, - kStart + 4, kStart + 5, kStart + 6, - }; - const cctz::weekday kWeekdays[7] = { - cctz::weekday::monday, cctz::weekday::tuesday, cctz::weekday::wednesday, - cctz::weekday::thursday, cctz::weekday::friday, cctz::weekday::saturday, - cctz::weekday::sunday, - }; - while (state.KeepRunningBatch(7 * 7)) { - for (const auto from : kDays) { - for (const auto to : kWeekdays) { - benchmark::DoNotOptimize(cctz::prev_weekday(from, to)); - } - } - } -} -BENCHMARK(BM_PrevWeekday); - -const char RFC3339_full[] = "%Y-%m-%d%ET%H:%M:%E*S%Ez"; -const char RFC3339_sec[] = "%Y-%m-%d%ET%H:%M:%S%Ez"; - -const char RFC1123_full[] = "%a, %d %b %Y %H:%M:%S %z"; -const char RFC1123_no_wday[] = "%d %b %Y %H:%M:%S %z"; - -// A list of known time-zone names. -// TODO: Refactor with src/time_zone_lookup_test.cc. -const char* const kTimeZoneNames[] = {"Africa/Abidjan", - "Africa/Accra", - "Africa/Addis_Ababa", - "Africa/Algiers", - "Africa/Asmara", - "Africa/Asmera", - "Africa/Bamako", - "Africa/Bangui", - "Africa/Banjul", - "Africa/Bissau", - "Africa/Blantyre", - "Africa/Brazzaville", - "Africa/Bujumbura", - "Africa/Cairo", - "Africa/Casablanca", - "Africa/Ceuta", - "Africa/Conakry", - "Africa/Dakar", - "Africa/Dar_es_Salaam", - "Africa/Djibouti", - "Africa/Douala", - "Africa/El_Aaiun", - "Africa/Freetown", - "Africa/Gaborone", - "Africa/Harare", - "Africa/Johannesburg", - "Africa/Juba", - "Africa/Kampala", - "Africa/Khartoum", - "Africa/Kigali", - "Africa/Kinshasa", - "Africa/Lagos", - "Africa/Libreville", - "Africa/Lome", - "Africa/Luanda", - "Africa/Lubumbashi", - "Africa/Lusaka", - "Africa/Malabo", - "Africa/Maputo", - "Africa/Maseru", - "Africa/Mbabane", - "Africa/Mogadishu", - "Africa/Monrovia", - "Africa/Nairobi", - "Africa/Ndjamena", - "Africa/Niamey", - "Africa/Nouakchott", - "Africa/Ouagadougou", - "Africa/Porto-Novo", - "Africa/Sao_Tome", - "Africa/Timbuktu", - "Africa/Tripoli", - "Africa/Tunis", - "Africa/Windhoek", - "America/Adak", - "America/Anchorage", - "America/Anguilla", - "America/Antigua", - "America/Araguaina", - "America/Argentina/Buenos_Aires", - "America/Argentina/Catamarca", - "America/Argentina/ComodRivadavia", - "America/Argentina/Cordoba", - "America/Argentina/Jujuy", - "America/Argentina/La_Rioja", - "America/Argentina/Mendoza", - "America/Argentina/Rio_Gallegos", - "America/Argentina/Salta", - "America/Argentina/San_Juan", - "America/Argentina/San_Luis", - "America/Argentina/Tucuman", - "America/Argentina/Ushuaia", - "America/Aruba", - "America/Asuncion", - "America/Atikokan", - "America/Atka", - "America/Bahia", - "America/Bahia_Banderas", - "America/Barbados", - "America/Belem", - "America/Belize", - "America/Blanc-Sablon", - "America/Boa_Vista", - "America/Bogota", - "America/Boise", - "America/Buenos_Aires", - "America/Cambridge_Bay", - "America/Campo_Grande", - "America/Cancun", - "America/Caracas", - "America/Catamarca", - "America/Cayenne", - "America/Cayman", - "America/Chicago", - "America/Chihuahua", - "America/Coral_Harbour", - "America/Cordoba", - "America/Costa_Rica", - "America/Creston", - "America/Cuiaba", - "America/Curacao", - "America/Danmarkshavn", - "America/Dawson", - "America/Dawson_Creek", - "America/Denver", - "America/Detroit", - "America/Dominica", - "America/Edmonton", - "America/Eirunepe", - "America/El_Salvador", - "America/Ensenada", - "America/Fort_Nelson", - "America/Fort_Wayne", - "America/Fortaleza", - "America/Glace_Bay", - "America/Godthab", - "America/Goose_Bay", - "America/Grand_Turk", - "America/Grenada", - "America/Guadeloupe", - "America/Guatemala", - "America/Guayaquil", - "America/Guyana", - "America/Halifax", - "America/Havana", - "America/Hermosillo", - "America/Indiana/Indianapolis", - "America/Indiana/Knox", - "America/Indiana/Marengo", - "America/Indiana/Petersburg", - "America/Indiana/Tell_City", - "America/Indiana/Vevay", - "America/Indiana/Vincennes", - "America/Indiana/Winamac", - "America/Indianapolis", - "America/Inuvik", - "America/Iqaluit", - "America/Jamaica", - "America/Jujuy", - "America/Juneau", - "America/Kentucky/Louisville", - "America/Kentucky/Monticello", - "America/Knox_IN", - "America/Kralendijk", - "America/La_Paz", - "America/Lima", - "America/Los_Angeles", - "America/Louisville", - "America/Lower_Princes", - "America/Maceio", - "America/Managua", - "America/Manaus", - "America/Marigot", - "America/Martinique", - "America/Matamoros", - "America/Mazatlan", - "America/Mendoza", - "America/Menominee", - "America/Merida", - "America/Metlakatla", - "America/Mexico_City", - "America/Miquelon", - "America/Moncton", - "America/Monterrey", - "America/Montevideo", - "America/Montreal", - "America/Montserrat", - "America/Nassau", - "America/New_York", - "America/Nipigon", - "America/Nome", - "America/Noronha", - "America/North_Dakota/Beulah", - "America/North_Dakota/Center", - "America/North_Dakota/New_Salem", - "America/Nuuk", - "America/Ojinaga", - "America/Panama", - "America/Pangnirtung", - "America/Paramaribo", - "America/Phoenix", - "America/Port-au-Prince", - "America/Port_of_Spain", - "America/Porto_Acre", - "America/Porto_Velho", - "America/Puerto_Rico", - "America/Punta_Arenas", - "America/Rainy_River", - "America/Rankin_Inlet", - "America/Recife", - "America/Regina", - "America/Resolute", - "America/Rio_Branco", - "America/Rosario", - "America/Santa_Isabel", - "America/Santarem", - "America/Santiago", - "America/Santo_Domingo", - "America/Sao_Paulo", - "America/Scoresbysund", - "America/Shiprock", - "America/Sitka", - "America/St_Barthelemy", - "America/St_Johns", - "America/St_Kitts", - "America/St_Lucia", - "America/St_Thomas", - "America/St_Vincent", - "America/Swift_Current", - "America/Tegucigalpa", - "America/Thule", - "America/Thunder_Bay", - "America/Tijuana", - "America/Toronto", - "America/Tortola", - "America/Vancouver", - "America/Virgin", - "America/Whitehorse", - "America/Winnipeg", - "America/Yakutat", - "America/Yellowknife", - "Antarctica/Casey", - "Antarctica/Davis", - "Antarctica/DumontDUrville", - "Antarctica/Macquarie", - "Antarctica/Mawson", - "Antarctica/McMurdo", - "Antarctica/Palmer", - "Antarctica/Rothera", - "Antarctica/South_Pole", - "Antarctica/Syowa", - "Antarctica/Troll", - "Antarctica/Vostok", - "Arctic/Longyearbyen", - "Asia/Aden", - "Asia/Almaty", - "Asia/Amman", - "Asia/Anadyr", - "Asia/Aqtau", - "Asia/Aqtobe", - "Asia/Ashgabat", - "Asia/Ashkhabad", - "Asia/Atyrau", - "Asia/Baghdad", - "Asia/Bahrain", - "Asia/Baku", - "Asia/Bangkok", - "Asia/Barnaul", - "Asia/Beirut", - "Asia/Bishkek", - "Asia/Brunei", - "Asia/Calcutta", - "Asia/Chita", - "Asia/Choibalsan", - "Asia/Chongqing", - "Asia/Chungking", - "Asia/Colombo", - "Asia/Dacca", - "Asia/Damascus", - "Asia/Dhaka", - "Asia/Dili", - "Asia/Dubai", - "Asia/Dushanbe", - "Asia/Famagusta", - "Asia/Gaza", - "Asia/Harbin", - "Asia/Hebron", - "Asia/Ho_Chi_Minh", - "Asia/Hong_Kong", - "Asia/Hovd", - "Asia/Irkutsk", - "Asia/Istanbul", - "Asia/Jakarta", - "Asia/Jayapura", - "Asia/Jerusalem", - "Asia/Kabul", - "Asia/Kamchatka", - "Asia/Karachi", - "Asia/Kashgar", - "Asia/Kathmandu", - "Asia/Katmandu", - "Asia/Khandyga", - "Asia/Kolkata", - "Asia/Krasnoyarsk", - "Asia/Kuala_Lumpur", - "Asia/Kuching", - "Asia/Kuwait", - "Asia/Macao", - "Asia/Macau", - "Asia/Magadan", - "Asia/Makassar", - "Asia/Manila", - "Asia/Muscat", - "Asia/Nicosia", - "Asia/Novokuznetsk", - "Asia/Novosibirsk", - "Asia/Omsk", - "Asia/Oral", - "Asia/Phnom_Penh", - "Asia/Pontianak", - "Asia/Pyongyang", - "Asia/Qatar", - "Asia/Qostanay", - "Asia/Qyzylorda", - "Asia/Rangoon", - "Asia/Riyadh", - "Asia/Saigon", - "Asia/Sakhalin", - "Asia/Samarkand", - "Asia/Seoul", - "Asia/Shanghai", - "Asia/Singapore", - "Asia/Srednekolymsk", - "Asia/Taipei", - "Asia/Tashkent", - "Asia/Tbilisi", - "Asia/Tehran", - "Asia/Tel_Aviv", - "Asia/Thimbu", - "Asia/Thimphu", - "Asia/Tokyo", - "Asia/Tomsk", - "Asia/Ujung_Pandang", - "Asia/Ulaanbaatar", - "Asia/Ulan_Bator", - "Asia/Urumqi", - "Asia/Ust-Nera", - "Asia/Vientiane", - "Asia/Vladivostok", - "Asia/Yakutsk", - "Asia/Yangon", - "Asia/Yekaterinburg", - "Asia/Yerevan", - "Atlantic/Azores", - "Atlantic/Bermuda", - "Atlantic/Canary", - "Atlantic/Cape_Verde", - "Atlantic/Faeroe", - "Atlantic/Faroe", - "Atlantic/Jan_Mayen", - "Atlantic/Madeira", - "Atlantic/Reykjavik", - "Atlantic/South_Georgia", - "Atlantic/St_Helena", - "Atlantic/Stanley", - "Australia/ACT", - "Australia/Adelaide", - "Australia/Brisbane", - "Australia/Broken_Hill", - "Australia/Canberra", - "Australia/Currie", - "Australia/Darwin", - "Australia/Eucla", - "Australia/Hobart", - "Australia/LHI", - "Australia/Lindeman", - "Australia/Lord_Howe", - "Australia/Melbourne", - "Australia/NSW", - "Australia/North", - "Australia/Perth", - "Australia/Queensland", - "Australia/South", - "Australia/Sydney", - "Australia/Tasmania", - "Australia/Victoria", - "Australia/West", - "Australia/Yancowinna", - "Brazil/Acre", - "Brazil/DeNoronha", - "Brazil/East", - "Brazil/West", - "CET", - "CST6CDT", - "Canada/Atlantic", - "Canada/Central", - "Canada/Eastern", - "Canada/Mountain", - "Canada/Newfoundland", - "Canada/Pacific", - "Canada/Saskatchewan", - "Canada/Yukon", - "Chile/Continental", - "Chile/EasterIsland", - "Cuba", - "EET", - "EST", - "EST5EDT", - "Egypt", - "Eire", - "Etc/GMT", - "Etc/GMT+0", - "Etc/GMT+1", - "Etc/GMT+10", - "Etc/GMT+11", - "Etc/GMT+12", - "Etc/GMT+2", - "Etc/GMT+3", - "Etc/GMT+4", - "Etc/GMT+5", - "Etc/GMT+6", - "Etc/GMT+7", - "Etc/GMT+8", - "Etc/GMT+9", - "Etc/GMT-0", - "Etc/GMT-1", - "Etc/GMT-10", - "Etc/GMT-11", - "Etc/GMT-12", - "Etc/GMT-13", - "Etc/GMT-14", - "Etc/GMT-2", - "Etc/GMT-3", - "Etc/GMT-4", - "Etc/GMT-5", - "Etc/GMT-6", - "Etc/GMT-7", - "Etc/GMT-8", - "Etc/GMT-9", - "Etc/GMT0", - "Etc/Greenwich", - "Etc/UCT", - "Etc/UTC", - "Etc/Universal", - "Etc/Zulu", - "Europe/Amsterdam", - "Europe/Andorra", - "Europe/Astrakhan", - "Europe/Athens", - "Europe/Belfast", - "Europe/Belgrade", - "Europe/Berlin", - "Europe/Bratislava", - "Europe/Brussels", - "Europe/Bucharest", - "Europe/Budapest", - "Europe/Busingen", - "Europe/Chisinau", - "Europe/Copenhagen", - "Europe/Dublin", - "Europe/Gibraltar", - "Europe/Guernsey", - "Europe/Helsinki", - "Europe/Isle_of_Man", - "Europe/Istanbul", - "Europe/Jersey", - "Europe/Kaliningrad", - "Europe/Kiev", - "Europe/Kirov", - "Europe/Lisbon", - "Europe/Ljubljana", - "Europe/London", - "Europe/Luxembourg", - "Europe/Madrid", - "Europe/Malta", - "Europe/Mariehamn", - "Europe/Minsk", - "Europe/Monaco", - "Europe/Moscow", - "Europe/Nicosia", - "Europe/Oslo", - "Europe/Paris", - "Europe/Podgorica", - "Europe/Prague", - "Europe/Riga", - "Europe/Rome", - "Europe/Samara", - "Europe/San_Marino", - "Europe/Sarajevo", - "Europe/Saratov", - "Europe/Simferopol", - "Europe/Skopje", - "Europe/Sofia", - "Europe/Stockholm", - "Europe/Tallinn", - "Europe/Tirane", - "Europe/Tiraspol", - "Europe/Ulyanovsk", - "Europe/Uzhgorod", - "Europe/Vaduz", - "Europe/Vatican", - "Europe/Vienna", - "Europe/Vilnius", - "Europe/Volgograd", - "Europe/Warsaw", - "Europe/Zagreb", - "Europe/Zaporozhye", - "Europe/Zurich", - "GB", - "GB-Eire", - "GMT", - "GMT+0", - "GMT-0", - "GMT0", - "Greenwich", - "HST", - "Hongkong", - "Iceland", - "Indian/Antananarivo", - "Indian/Chagos", - "Indian/Christmas", - "Indian/Cocos", - "Indian/Comoro", - "Indian/Kerguelen", - "Indian/Mahe", - "Indian/Maldives", - "Indian/Mauritius", - "Indian/Mayotte", - "Indian/Reunion", - "Iran", - "Israel", - "Jamaica", - "Japan", - "Kwajalein", - "Libya", - "MET", - "MST", - "MST7MDT", - "Mexico/BajaNorte", - "Mexico/BajaSur", - "Mexico/General", - "NZ", - "NZ-CHAT", - "Navajo", - "PRC", - "PST8PDT", - "Pacific/Apia", - "Pacific/Auckland", - "Pacific/Bougainville", - "Pacific/Chatham", - "Pacific/Chuuk", - "Pacific/Easter", - "Pacific/Efate", - "Pacific/Enderbury", - "Pacific/Fakaofo", - "Pacific/Fiji", - "Pacific/Funafuti", - "Pacific/Galapagos", - "Pacific/Gambier", - "Pacific/Guadalcanal", - "Pacific/Guam", - "Pacific/Honolulu", - "Pacific/Johnston", - "Pacific/Kiritimati", - "Pacific/Kosrae", - "Pacific/Kwajalein", - "Pacific/Majuro", - "Pacific/Marquesas", - "Pacific/Midway", - "Pacific/Nauru", - "Pacific/Niue", - "Pacific/Norfolk", - "Pacific/Noumea", - "Pacific/Pago_Pago", - "Pacific/Palau", - "Pacific/Pitcairn", - "Pacific/Pohnpei", - "Pacific/Ponape", - "Pacific/Port_Moresby", - "Pacific/Rarotonga", - "Pacific/Saipan", - "Pacific/Samoa", - "Pacific/Tahiti", - "Pacific/Tarawa", - "Pacific/Tongatapu", - "Pacific/Truk", - "Pacific/Wake", - "Pacific/Wallis", - "Pacific/Yap", - "Poland", - "Portugal", - "ROC", - "ROK", - "Singapore", - "Turkey", - "UCT", - "US/Alaska", - "US/Aleutian", - "US/Arizona", - "US/Central", - "US/East-Indiana", - "US/Eastern", - "US/Hawaii", - "US/Indiana-Starke", - "US/Michigan", - "US/Mountain", - "US/Pacific", - "US/Samoa", - "UTC", - "Universal", - "W-SU", - "WET", - "Zulu", - nullptr}; - -std::vector<std::string> AllTimeZoneNames() { - std::vector<std::string> names; - for (const char* const* namep = kTimeZoneNames; *namep != nullptr; ++namep) { - names.push_back(std::string("file:") + *namep); - } - assert(!names.empty()); - - std::mt19937 urbg(42); // a UniformRandomBitGenerator with fixed seed - std::shuffle(names.begin(), names.end(), urbg); - return names; -} - -cctz::time_zone TestTimeZone() { - cctz::time_zone tz; - cctz::load_time_zone("America/Los_Angeles", &tz); - return tz; -} - -void BM_Zone_LoadUTCTimeZoneFirst(benchmark::State& state) { - cctz::time_zone tz; - cctz::load_time_zone("UTC", &tz); // in case we're first - cctz::time_zone::Impl::ClearTimeZoneMapTestOnly(); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::load_time_zone("UTC", &tz)); - } -} -BENCHMARK(BM_Zone_LoadUTCTimeZoneFirst); - -void BM_Zone_LoadUTCTimeZoneLast(benchmark::State& state) { - cctz::time_zone tz; - for (const auto& name : AllTimeZoneNames()) { - cctz::load_time_zone(name, &tz); // prime cache - } - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::load_time_zone("UTC", &tz)); - } -} -BENCHMARK(BM_Zone_LoadUTCTimeZoneLast); - -void BM_Zone_LoadTimeZoneFirst(benchmark::State& state) { - cctz::time_zone tz = cctz::utc_time_zone(); // in case we're first - const std::string name = "file:America/Los_Angeles"; - while (state.KeepRunning()) { - state.PauseTiming(); - cctz::time_zone::Impl::ClearTimeZoneMapTestOnly(); - state.ResumeTiming(); - benchmark::DoNotOptimize(cctz::load_time_zone(name, &tz)); - } -} -BENCHMARK(BM_Zone_LoadTimeZoneFirst); - -void BM_Zone_LoadTimeZoneCached(benchmark::State& state) { - cctz::time_zone tz = cctz::utc_time_zone(); // in case we're first - cctz::time_zone::Impl::ClearTimeZoneMapTestOnly(); - const std::string name = "file:America/Los_Angeles"; - cctz::load_time_zone(name, &tz); // prime cache - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::load_time_zone(name, &tz)); - } -} -BENCHMARK(BM_Zone_LoadTimeZoneCached); - -void BM_Zone_LoadLocalTimeZoneCached(benchmark::State& state) { - cctz::utc_time_zone(); // in case we're first - cctz::time_zone::Impl::ClearTimeZoneMapTestOnly(); - cctz::local_time_zone(); // prime cache - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::local_time_zone()); - } -} -BENCHMARK(BM_Zone_LoadLocalTimeZoneCached); - -void BM_Zone_LoadAllTimeZonesFirst(benchmark::State& state) { - cctz::time_zone tz; - const std::vector<std::string> names = AllTimeZoneNames(); - for (auto index = names.size(); state.KeepRunning(); ++index) { - if (index == names.size()) { - index = 0; - } - if (index == 0) { - state.PauseTiming(); - cctz::time_zone::Impl::ClearTimeZoneMapTestOnly(); - state.ResumeTiming(); - } - benchmark::DoNotOptimize(cctz::load_time_zone(names[index], &tz)); - } -} -BENCHMARK(BM_Zone_LoadAllTimeZonesFirst); - -void BM_Zone_LoadAllTimeZonesCached(benchmark::State& state) { - cctz::time_zone tz; - const std::vector<std::string> names = AllTimeZoneNames(); - for (const auto& name : names) { - cctz::load_time_zone(name, &tz); // prime cache - } - for (auto index = names.size(); state.KeepRunning(); ++index) { - if (index == names.size()) { - index = 0; - } - benchmark::DoNotOptimize(cctz::load_time_zone(names[index], &tz)); - } -} -BENCHMARK(BM_Zone_LoadAllTimeZonesCached); - -void BM_Zone_TimeZoneEqualityImplicit(benchmark::State& state) { - cctz::time_zone tz; // implicit UTC - while (state.KeepRunning()) { - benchmark::DoNotOptimize(tz == tz); - } -} -BENCHMARK(BM_Zone_TimeZoneEqualityImplicit); - -void BM_Zone_TimeZoneEqualityExplicit(benchmark::State& state) { - cctz::time_zone tz = cctz::utc_time_zone(); // explicit UTC - while (state.KeepRunning()) { - benchmark::DoNotOptimize(tz == tz); - } -} -BENCHMARK(BM_Zone_TimeZoneEqualityExplicit); - -void BM_Zone_UTCTimeZone(benchmark::State& state) { - cctz::time_zone tz; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::utc_time_zone()); - } -} -BENCHMARK(BM_Zone_UTCTimeZone); - -// In each "ToCivil" benchmark we switch between two instants separated -// by at least one transition in order to defeat any internal caching of -// previous results (e.g., see local_time_hint_). -// -// The "UTC" variants use UTC instead of the Google/local time zone. - -void BM_Time_ToCivil_CCTZ(benchmark::State& state) { - const cctz::time_zone tz = TestTimeZone(); - std::chrono::system_clock::time_point tp = - std::chrono::system_clock::from_time_t(1384569027); - std::chrono::system_clock::time_point tp2 = - std::chrono::system_clock::from_time_t(1418962578); - while (state.KeepRunning()) { - std::swap(tp, tp2); - tp += std::chrono::seconds(1); - benchmark::DoNotOptimize(cctz::convert(tp, tz)); - } -} -BENCHMARK(BM_Time_ToCivil_CCTZ); - -void BM_Time_ToCivil_Libc(benchmark::State& state) { - // No timezone support, so just use localtime. - time_t t = 1384569027; - time_t t2 = 1418962578; - struct tm tm; - while (state.KeepRunning()) { - std::swap(t, t2); - t += 1; -#if defined(_WIN32) || defined(_WIN64) - benchmark::DoNotOptimize(localtime_s(&tm, &t)); -#else - benchmark::DoNotOptimize(localtime_r(&t, &tm)); -#endif - } -} -BENCHMARK(BM_Time_ToCivil_Libc); - -void BM_Time_ToCivilUTC_CCTZ(benchmark::State& state) { - const cctz::time_zone tz = cctz::utc_time_zone(); - std::chrono::system_clock::time_point tp = - std::chrono::system_clock::from_time_t(1384569027); - while (state.KeepRunning()) { - tp += std::chrono::seconds(1); - benchmark::DoNotOptimize(cctz::convert(tp, tz)); - } -} -BENCHMARK(BM_Time_ToCivilUTC_CCTZ); - -void BM_Time_ToCivilUTC_Libc(benchmark::State& state) { - time_t t = 1384569027; - struct tm tm; - while (state.KeepRunning()) { - t += 1; -#if defined(_WIN32) || defined(_WIN64) - benchmark::DoNotOptimize(gmtime_s(&tm, &t)); -#else - benchmark::DoNotOptimize(gmtime_r(&t, &tm)); -#endif - } -} -BENCHMARK(BM_Time_ToCivilUTC_Libc); - -// In each "FromCivil" benchmark we switch between two YMDhms values -// separated by at least one transition in order to defeat any internal -// caching of previous results (e.g., see time_local_hint_). -// -// The "UTC" variants use UTC instead of the Google/local time zone. -// The "Day0" variants require normalization of the day of month. - -void BM_Time_FromCivil_CCTZ(benchmark::State& state) { - const cctz::time_zone tz = TestTimeZone(); - int i = 0; - while (state.KeepRunning()) { - if ((i++ & 1) == 0) { - benchmark::DoNotOptimize( - cctz::convert(cctz::civil_second(2014, 12, 18, 20, 16, 18), tz)); - } else { - benchmark::DoNotOptimize( - cctz::convert(cctz::civil_second(2013, 11, 15, 18, 30, 27), tz)); - } - } -} -BENCHMARK(BM_Time_FromCivil_CCTZ); - -void BM_Time_FromCivil_Libc(benchmark::State& state) { - // No timezone support, so just use localtime. - int i = 0; - while (state.KeepRunning()) { - struct tm tm; - if ((i++ & 1) == 0) { - tm.tm_year = 2014 - 1900; - tm.tm_mon = 12 - 1; - tm.tm_mday = 18; - tm.tm_hour = 20; - tm.tm_min = 16; - tm.tm_sec = 18; - } else { - tm.tm_year = 2013 - 1900; - tm.tm_mon = 11 - 1; - tm.tm_mday = 15; - tm.tm_hour = 18; - tm.tm_min = 30; - tm.tm_sec = 27; - } - tm.tm_isdst = -1; - benchmark::DoNotOptimize(mktime(&tm)); - } -} -BENCHMARK(BM_Time_FromCivil_Libc); - -void BM_Time_FromCivilUTC_CCTZ(benchmark::State& state) { - const cctz::time_zone tz = cctz::utc_time_zone(); - while (state.KeepRunning()) { - benchmark::DoNotOptimize( - cctz::convert(cctz::civil_second(2014, 12, 18, 20, 16, 18), tz)); - } -} -BENCHMARK(BM_Time_FromCivilUTC_CCTZ); - -// There is no BM_Time_FromCivilUTC_Libc. - -void BM_Time_FromCivilDay0_CCTZ(benchmark::State& state) { - const cctz::time_zone tz = TestTimeZone(); - int i = 0; - while (state.KeepRunning()) { - if ((i++ & 1) == 0) { - benchmark::DoNotOptimize( - cctz::convert(cctz::civil_second(2014, 12, 0, 20, 16, 18), tz)); - } else { - benchmark::DoNotOptimize( - cctz::convert(cctz::civil_second(2013, 11, 0, 18, 30, 27), tz)); - } - } -} -BENCHMARK(BM_Time_FromCivilDay0_CCTZ); - -void BM_Time_FromCivilDay0_Libc(benchmark::State& state) { - // No timezone support, so just use localtime. - int i = 0; - while (state.KeepRunning()) { - struct tm tm; - if ((i++ & 1) == 0) { - tm.tm_year = 2014 - 1900; - tm.tm_mon = 12 - 1; - tm.tm_mday = 0; - tm.tm_hour = 20; - tm.tm_min = 16; - tm.tm_sec = 18; - } else { - tm.tm_year = 2013 - 1900; - tm.tm_mon = 11 - 1; - tm.tm_mday = 0; - tm.tm_hour = 18; - tm.tm_min = 30; - tm.tm_sec = 27; - } - tm.tm_isdst = -1; - benchmark::DoNotOptimize(mktime(&tm)); - } -} -BENCHMARK(BM_Time_FromCivilDay0_Libc); - -const char* const kFormats[] = { - RFC1123_full, // 0 - RFC1123_no_wday, // 1 - RFC3339_full, // 2 - RFC3339_sec, // 3 - "%Y-%m-%d%ET%H:%M:%S", // 4 - "%Y-%m-%d", // 5 -}; -const int kNumFormats = sizeof(kFormats) / sizeof(kFormats[0]); - -void BM_Format_FormatTime(benchmark::State& state) { - const std::string fmt = kFormats[state.range(0)]; - state.SetLabel(fmt); - const cctz::time_zone tz = TestTimeZone(); - const std::chrono::system_clock::time_point tp = - cctz::convert(cctz::civil_second(1977, 6, 28, 9, 8, 7), tz) + - std::chrono::microseconds(1); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::format(fmt, tp, tz)); - } -} -BENCHMARK(BM_Format_FormatTime)->DenseRange(0, kNumFormats - 1); - -void BM_Format_ParseTime(benchmark::State& state) { - const std::string fmt = kFormats[state.range(0)]; - state.SetLabel(fmt); - const cctz::time_zone tz = TestTimeZone(); - std::chrono::system_clock::time_point tp = - cctz::convert(cctz::civil_second(1977, 6, 28, 9, 8, 7), tz) + - std::chrono::microseconds(1); - const std::string when = cctz::format(fmt, tp, tz); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(cctz::parse(fmt, when, tz, &tp)); - } -} -BENCHMARK(BM_Format_ParseTime)->DenseRange(0, kNumFormats - 1); - -} // namespace diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/civil_time_detail.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/civil_time_detail.cc deleted file mode 100644 index 0b07e397e5..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/civil_time_detail.cc +++ /dev/null @@ -1,94 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/internal/cctz/include/cctz/civil_time_detail.h" - -#include <iomanip> -#include <ostream> -#include <sstream> - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { -namespace detail { - -// Output stream operators output a format matching YYYY-MM-DDThh:mm:ss, -// while omitting fields inferior to the type's alignment. For example, -// civil_day is formatted only as YYYY-MM-DD. -std::ostream& operator<<(std::ostream& os, const civil_year& y) { - std::stringstream ss; - ss << y.year(); // No padding. - return os << ss.str(); -} -std::ostream& operator<<(std::ostream& os, const civil_month& m) { - std::stringstream ss; - ss << civil_year(m) << '-'; - ss << std::setfill('0') << std::setw(2) << m.month(); - return os << ss.str(); -} -std::ostream& operator<<(std::ostream& os, const civil_day& d) { - std::stringstream ss; - ss << civil_month(d) << '-'; - ss << std::setfill('0') << std::setw(2) << d.day(); - return os << ss.str(); -} -std::ostream& operator<<(std::ostream& os, const civil_hour& h) { - std::stringstream ss; - ss << civil_day(h) << 'T'; - ss << std::setfill('0') << std::setw(2) << h.hour(); - return os << ss.str(); -} -std::ostream& operator<<(std::ostream& os, const civil_minute& m) { - std::stringstream ss; - ss << civil_hour(m) << ':'; - ss << std::setfill('0') << std::setw(2) << m.minute(); - return os << ss.str(); -} -std::ostream& operator<<(std::ostream& os, const civil_second& s) { - std::stringstream ss; - ss << civil_minute(s) << ':'; - ss << std::setfill('0') << std::setw(2) << s.second(); - return os << ss.str(); -} - -//////////////////////////////////////////////////////////////////////// - -std::ostream& operator<<(std::ostream& os, weekday wd) { - switch (wd) { - case weekday::monday: - return os << "Monday"; - case weekday::tuesday: - return os << "Tuesday"; - case weekday::wednesday: - return os << "Wednesday"; - case weekday::thursday: - return os << "Thursday"; - case weekday::friday: - return os << "Friday"; - case weekday::saturday: - return os << "Saturday"; - case weekday::sunday: - return os << "Sunday"; - } - return os; // Should never get here, but -Wreturn-type may warn without this. -} - -} // namespace detail -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/civil_time_test.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/civil_time_test.cc deleted file mode 100644 index a5a7123041..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/civil_time_test.cc +++ /dev/null @@ -1,1066 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/internal/cctz/include/cctz/civil_time.h" - -#include <iomanip> -#include <limits> -#include <sstream> -#include <string> -#include <type_traits> - -#include "gtest/gtest.h" -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -namespace { - -template <typename T> -std::string Format(const T& t) { - std::stringstream ss; - ss << t; - return ss.str(); -} - -} // namespace - -#if __cpp_constexpr >= 201304 || (defined(_MSC_VER) && _MSC_VER >= 1910) -// Construction constexpr tests - -TEST(CivilTime, Normal) { - constexpr civil_second css(2016, 1, 28, 17, 14, 12); - static_assert(css.second() == 12, "Normal.second"); - constexpr civil_minute cmm(2016, 1, 28, 17, 14); - static_assert(cmm.minute() == 14, "Normal.minute"); - constexpr civil_hour chh(2016, 1, 28, 17); - static_assert(chh.hour() == 17, "Normal.hour"); - constexpr civil_day cd(2016, 1, 28); - static_assert(cd.day() == 28, "Normal.day"); - constexpr civil_month cm(2016, 1); - static_assert(cm.month() == 1, "Normal.month"); - constexpr civil_year cy(2016); - static_assert(cy.year() == 2016, "Normal.year"); -} - -TEST(CivilTime, Conversion) { - constexpr civil_year cy(2016); - static_assert(cy.year() == 2016, "Conversion.year"); - constexpr civil_month cm(cy); - static_assert(cm.month() == 1, "Conversion.month"); - constexpr civil_day cd(cm); - static_assert(cd.day() == 1, "Conversion.day"); - constexpr civil_hour chh(cd); - static_assert(chh.hour() == 0, "Conversion.hour"); - constexpr civil_minute cmm(chh); - static_assert(cmm.minute() == 0, "Conversion.minute"); - constexpr civil_second css(cmm); - static_assert(css.second() == 0, "Conversion.second"); -} - -// Normalization constexpr tests - -TEST(CivilTime, Normalized) { - constexpr civil_second cs(2016, 1, 28, 17, 14, 12); - static_assert(cs.year() == 2016, "Normalized.year"); - static_assert(cs.month() == 1, "Normalized.month"); - static_assert(cs.day() == 28, "Normalized.day"); - static_assert(cs.hour() == 17, "Normalized.hour"); - static_assert(cs.minute() == 14, "Normalized.minute"); - static_assert(cs.second() == 12, "Normalized.second"); -} - -TEST(CivilTime, SecondOverflow) { - constexpr civil_second cs(2016, 1, 28, 17, 14, 121); - static_assert(cs.year() == 2016, "SecondOverflow.year"); - static_assert(cs.month() == 1, "SecondOverflow.month"); - static_assert(cs.day() == 28, "SecondOverflow.day"); - static_assert(cs.hour() == 17, "SecondOverflow.hour"); - static_assert(cs.minute() == 16, "SecondOverflow.minute"); - static_assert(cs.second() == 1, "SecondOverflow.second"); -} - -TEST(CivilTime, SecondUnderflow) { - constexpr civil_second cs(2016, 1, 28, 17, 14, -121); - static_assert(cs.year() == 2016, "SecondUnderflow.year"); - static_assert(cs.month() == 1, "SecondUnderflow.month"); - static_assert(cs.day() == 28, "SecondUnderflow.day"); - static_assert(cs.hour() == 17, "SecondUnderflow.hour"); - static_assert(cs.minute() == 11, "SecondUnderflow.minute"); - static_assert(cs.second() == 59, "SecondUnderflow.second"); -} - -TEST(CivilTime, MinuteOverflow) { - constexpr civil_second cs(2016, 1, 28, 17, 121, 12); - static_assert(cs.year() == 2016, "MinuteOverflow.year"); - static_assert(cs.month() == 1, "MinuteOverflow.month"); - static_assert(cs.day() == 28, "MinuteOverflow.day"); - static_assert(cs.hour() == 19, "MinuteOverflow.hour"); - static_assert(cs.minute() == 1, "MinuteOverflow.minute"); - static_assert(cs.second() == 12, "MinuteOverflow.second"); -} - -TEST(CivilTime, MinuteUnderflow) { - constexpr civil_second cs(2016, 1, 28, 17, -121, 12); - static_assert(cs.year() == 2016, "MinuteUnderflow.year"); - static_assert(cs.month() == 1, "MinuteUnderflow.month"); - static_assert(cs.day() == 28, "MinuteUnderflow.day"); - static_assert(cs.hour() == 14, "MinuteUnderflow.hour"); - static_assert(cs.minute() == 59, "MinuteUnderflow.minute"); - static_assert(cs.second() == 12, "MinuteUnderflow.second"); -} - -TEST(CivilTime, HourOverflow) { - constexpr civil_second cs(2016, 1, 28, 49, 14, 12); - static_assert(cs.year() == 2016, "HourOverflow.year"); - static_assert(cs.month() == 1, "HourOverflow.month"); - static_assert(cs.day() == 30, "HourOverflow.day"); - static_assert(cs.hour() == 1, "HourOverflow.hour"); - static_assert(cs.minute() == 14, "HourOverflow.minute"); - static_assert(cs.second() == 12, "HourOverflow.second"); -} - -TEST(CivilTime, HourUnderflow) { - constexpr civil_second cs(2016, 1, 28, -49, 14, 12); - static_assert(cs.year() == 2016, "HourUnderflow.year"); - static_assert(cs.month() == 1, "HourUnderflow.month"); - static_assert(cs.day() == 25, "HourUnderflow.day"); - static_assert(cs.hour() == 23, "HourUnderflow.hour"); - static_assert(cs.minute() == 14, "HourUnderflow.minute"); - static_assert(cs.second() == 12, "HourUnderflow.second"); -} - -TEST(CivilTime, MonthOverflow) { - constexpr civil_second cs(2016, 25, 28, 17, 14, 12); - static_assert(cs.year() == 2018, "MonthOverflow.year"); - static_assert(cs.month() == 1, "MonthOverflow.month"); - static_assert(cs.day() == 28, "MonthOverflow.day"); - static_assert(cs.hour() == 17, "MonthOverflow.hour"); - static_assert(cs.minute() == 14, "MonthOverflow.minute"); - static_assert(cs.second() == 12, "MonthOverflow.second"); -} - -TEST(CivilTime, MonthUnderflow) { - constexpr civil_second cs(2016, -25, 28, 17, 14, 12); - static_assert(cs.year() == 2013, "MonthUnderflow.year"); - static_assert(cs.month() == 11, "MonthUnderflow.month"); - static_assert(cs.day() == 28, "MonthUnderflow.day"); - static_assert(cs.hour() == 17, "MonthUnderflow.hour"); - static_assert(cs.minute() == 14, "MonthUnderflow.minute"); - static_assert(cs.second() == 12, "MonthUnderflow.second"); -} - -TEST(CivilTime, C4Overflow) { - constexpr civil_second cs(2016, 1, 292195, 17, 14, 12); - static_assert(cs.year() == 2816, "C4Overflow.year"); - static_assert(cs.month() == 1, "C4Overflow.month"); - static_assert(cs.day() == 1, "C4Overflow.day"); - static_assert(cs.hour() == 17, "C4Overflow.hour"); - static_assert(cs.minute() == 14, "C4Overflow.minute"); - static_assert(cs.second() == 12, "C4Overflow.second"); -} - -TEST(CivilTime, C4Underflow) { - constexpr civil_second cs(2016, 1, -292195, 17, 14, 12); - static_assert(cs.year() == 1215, "C4Underflow.year"); - static_assert(cs.month() == 12, "C4Underflow.month"); - static_assert(cs.day() == 30, "C4Underflow.day"); - static_assert(cs.hour() == 17, "C4Underflow.hour"); - static_assert(cs.minute() == 14, "C4Underflow.minute"); - static_assert(cs.second() == 12, "C4Underflow.second"); -} - -TEST(CivilTime, MixedNormalization) { - constexpr civil_second cs(2016, -42, 122, 99, -147, 4949); - static_assert(cs.year() == 2012, "MixedNormalization.year"); - static_assert(cs.month() == 10, "MixedNormalization.month"); - static_assert(cs.day() == 4, "MixedNormalization.day"); - static_assert(cs.hour() == 1, "MixedNormalization.hour"); - static_assert(cs.minute() == 55, "MixedNormalization.minute"); - static_assert(cs.second() == 29, "MixedNormalization.second"); -} - -// Relational constexpr tests - -TEST(CivilTime, Less) { - constexpr civil_second cs1(2016, 1, 28, 17, 14, 12); - constexpr civil_second cs2(2016, 1, 28, 17, 14, 13); - constexpr bool less = cs1 < cs2; - static_assert(less, "Less"); -} - -// Arithmetic constexpr tests - -TEST(CivilTime, Addition) { - constexpr civil_second cs1(2016, 1, 28, 17, 14, 12); - constexpr civil_second cs2 = cs1 + 50; - static_assert(cs2.year() == 2016, "Addition.year"); - static_assert(cs2.month() == 1, "Addition.month"); - static_assert(cs2.day() == 28, "Addition.day"); - static_assert(cs2.hour() == 17, "Addition.hour"); - static_assert(cs2.minute() == 15, "Addition.minute"); - static_assert(cs2.second() == 2, "Addition.second"); -} - -TEST(CivilTime, Subtraction) { - constexpr civil_second cs1(2016, 1, 28, 17, 14, 12); - constexpr civil_second cs2 = cs1 - 50; - static_assert(cs2.year() == 2016, "Subtraction.year"); - static_assert(cs2.month() == 1, "Subtraction.month"); - static_assert(cs2.day() == 28, "Subtraction.day"); - static_assert(cs2.hour() == 17, "Subtraction.hour"); - static_assert(cs2.minute() == 13, "Subtraction.minute"); - static_assert(cs2.second() == 22, "Subtraction.second"); -} - -TEST(CivilTime, Difference) { - constexpr civil_day cd1(2016, 1, 28); - constexpr civil_day cd2(2015, 1, 28); - constexpr int diff = cd1 - cd2; - static_assert(diff == 365, "Difference"); -} - -// NOTE: Run this with --copt=-ftrapv to detect overflow problems. -TEST(CivilTime, ConstructionWithHugeYear) { - constexpr civil_hour h(-9223372036854775807, 1, 1, -1); - static_assert(h.year() == -9223372036854775807 - 1, - "ConstructionWithHugeYear"); - static_assert(h.month() == 12, "ConstructionWithHugeYear"); - static_assert(h.day() == 31, "ConstructionWithHugeYear"); - static_assert(h.hour() == 23, "ConstructionWithHugeYear"); -} - -// NOTE: Run this with --copt=-ftrapv to detect overflow problems. -TEST(CivilTime, DifferenceWithHugeYear) { - { - constexpr civil_day d1(9223372036854775807, 1, 1); - constexpr civil_day d2(9223372036854775807, 12, 31); - static_assert(d2 - d1 == 364, "DifferenceWithHugeYear"); - } - { - constexpr civil_day d1(-9223372036854775807 - 1, 1, 1); - constexpr civil_day d2(-9223372036854775807 - 1, 12, 31); - static_assert(d2 - d1 == 365, "DifferenceWithHugeYear"); - } - { - // Check the limits of the return value at the end of the year range. - constexpr civil_day d1(9223372036854775807, 1, 1); - constexpr civil_day d2(9198119301927009252, 6, 6); - static_assert(d1 - d2 == 9223372036854775807, "DifferenceWithHugeYear"); - static_assert((d2 - 1) - d1 == -9223372036854775807 - 1, - "DifferenceWithHugeYear"); - } - { - // Check the limits of the return value at the start of the year range. - constexpr civil_day d1(-9223372036854775807 - 1, 1, 1); - constexpr civil_day d2(-9198119301927009254, 7, 28); - static_assert(d2 - d1 == 9223372036854775807, "DifferenceWithHugeYear"); - static_assert(d1 - (d2 + 1) == -9223372036854775807 - 1, - "DifferenceWithHugeYear"); - } - { - // Check the limits of the return value from either side of year 0. - constexpr civil_day d1(-12626367463883278, 9, 3); - constexpr civil_day d2(12626367463883277, 3, 28); - static_assert(d2 - d1 == 9223372036854775807, "DifferenceWithHugeYear"); - static_assert(d1 - (d2 + 1) == -9223372036854775807 - 1, - "DifferenceWithHugeYear"); - } -} - -// NOTE: Run this with --copt=-ftrapv to detect overflow problems. -TEST(CivilTime, DifferenceNoIntermediateOverflow) { - { - // The difference up to the minute field would be below the minimum - // diff_t, but the 52 extra seconds brings us back to the minimum. - constexpr civil_second s1(-292277022657, 1, 27, 8, 29 - 1, 52); - constexpr civil_second s2(1970, 1, 1, 0, 0 - 1, 0); - static_assert(s1 - s2 == -9223372036854775807 - 1, - "DifferenceNoIntermediateOverflow"); - } - { - // The difference up to the minute field would be above the maximum - // diff_t, but the -53 extra seconds brings us back to the maximum. - constexpr civil_second s1(292277026596, 12, 4, 15, 30, 7 - 7); - constexpr civil_second s2(1970, 1, 1, 0, 0, 0 - 7); - static_assert(s1 - s2 == 9223372036854775807, - "DifferenceNoIntermediateOverflow"); - } -} - -// Helper constexpr tests - -TEST(CivilTime, WeekDay) { - constexpr civil_day cd(2016, 1, 28); - constexpr weekday wd = get_weekday(cd); - static_assert(wd == weekday::thursday, "Weekday"); -} - -TEST(CivilTime, NextWeekDay) { - constexpr civil_day cd(2016, 1, 28); - constexpr civil_day next = next_weekday(cd, weekday::thursday); - static_assert(next.year() == 2016, "NextWeekDay.year"); - static_assert(next.month() == 2, "NextWeekDay.month"); - static_assert(next.day() == 4, "NextWeekDay.day"); -} - -TEST(CivilTime, PrevWeekDay) { - constexpr civil_day cd(2016, 1, 28); - constexpr civil_day prev = prev_weekday(cd, weekday::thursday); - static_assert(prev.year() == 2016, "PrevWeekDay.year"); - static_assert(prev.month() == 1, "PrevWeekDay.month"); - static_assert(prev.day() == 21, "PrevWeekDay.day"); -} - -TEST(CivilTime, YearDay) { - constexpr civil_day cd(2016, 1, 28); - constexpr int yd = get_yearday(cd); - static_assert(yd == 28, "YearDay"); -} -#endif // __cpp_constexpr >= 201304 || (defined(_MSC_VER) && _MSC_VER >= 1910) - -// The remaining tests do not use constexpr. - -TEST(CivilTime, DefaultConstruction) { - civil_second ss; - EXPECT_EQ("1970-01-01T00:00:00", Format(ss)); - - civil_minute mm; - EXPECT_EQ("1970-01-01T00:00", Format(mm)); - - civil_hour hh; - EXPECT_EQ("1970-01-01T00", Format(hh)); - - civil_day d; - EXPECT_EQ("1970-01-01", Format(d)); - - civil_month m; - EXPECT_EQ("1970-01", Format(m)); - - civil_year y; - EXPECT_EQ("1970", Format(y)); -} - -TEST(CivilTime, StructMember) { - struct S { - civil_day day; - }; - S s = {}; - EXPECT_EQ(civil_day{}, s.day); -} - -TEST(CivilTime, FieldsConstruction) { - EXPECT_EQ("2015-01-02T03:04:05", Format(civil_second(2015, 1, 2, 3, 4, 5))); - EXPECT_EQ("2015-01-02T03:04:00", Format(civil_second(2015, 1, 2, 3, 4))); - EXPECT_EQ("2015-01-02T03:00:00", Format(civil_second(2015, 1, 2, 3))); - EXPECT_EQ("2015-01-02T00:00:00", Format(civil_second(2015, 1, 2))); - EXPECT_EQ("2015-01-01T00:00:00", Format(civil_second(2015, 1))); - EXPECT_EQ("2015-01-01T00:00:00", Format(civil_second(2015))); - - EXPECT_EQ("2015-01-02T03:04", Format(civil_minute(2015, 1, 2, 3, 4, 5))); - EXPECT_EQ("2015-01-02T03:04", Format(civil_minute(2015, 1, 2, 3, 4))); - EXPECT_EQ("2015-01-02T03:00", Format(civil_minute(2015, 1, 2, 3))); - EXPECT_EQ("2015-01-02T00:00", Format(civil_minute(2015, 1, 2))); - EXPECT_EQ("2015-01-01T00:00", Format(civil_minute(2015, 1))); - EXPECT_EQ("2015-01-01T00:00", Format(civil_minute(2015))); - - EXPECT_EQ("2015-01-02T03", Format(civil_hour(2015, 1, 2, 3, 4, 5))); - EXPECT_EQ("2015-01-02T03", Format(civil_hour(2015, 1, 2, 3, 4))); - EXPECT_EQ("2015-01-02T03", Format(civil_hour(2015, 1, 2, 3))); - EXPECT_EQ("2015-01-02T00", Format(civil_hour(2015, 1, 2))); - EXPECT_EQ("2015-01-01T00", Format(civil_hour(2015, 1))); - EXPECT_EQ("2015-01-01T00", Format(civil_hour(2015))); - - EXPECT_EQ("2015-01-02", Format(civil_day(2015, 1, 2, 3, 4, 5))); - EXPECT_EQ("2015-01-02", Format(civil_day(2015, 1, 2, 3, 4))); - EXPECT_EQ("2015-01-02", Format(civil_day(2015, 1, 2, 3))); - EXPECT_EQ("2015-01-02", Format(civil_day(2015, 1, 2))); - EXPECT_EQ("2015-01-01", Format(civil_day(2015, 1))); - EXPECT_EQ("2015-01-01", Format(civil_day(2015))); - - EXPECT_EQ("2015-01", Format(civil_month(2015, 1, 2, 3, 4, 5))); - EXPECT_EQ("2015-01", Format(civil_month(2015, 1, 2, 3, 4))); - EXPECT_EQ("2015-01", Format(civil_month(2015, 1, 2, 3))); - EXPECT_EQ("2015-01", Format(civil_month(2015, 1, 2))); - EXPECT_EQ("2015-01", Format(civil_month(2015, 1))); - EXPECT_EQ("2015-01", Format(civil_month(2015))); - - EXPECT_EQ("2015", Format(civil_year(2015, 1, 2, 3, 4, 5))); - EXPECT_EQ("2015", Format(civil_year(2015, 1, 2, 3, 4))); - EXPECT_EQ("2015", Format(civil_year(2015, 1, 2, 3))); - EXPECT_EQ("2015", Format(civil_year(2015, 1, 2))); - EXPECT_EQ("2015", Format(civil_year(2015, 1))); - EXPECT_EQ("2015", Format(civil_year(2015))); -} - -TEST(CivilTime, FieldsConstructionLimits) { - const int kIntMax = std::numeric_limits<int>::max(); - EXPECT_EQ("2038-01-19T03:14:07", - Format(civil_second(1970, 1, 1, 0, 0, kIntMax))); - EXPECT_EQ("6121-02-11T05:21:07", - Format(civil_second(1970, 1, 1, 0, kIntMax, kIntMax))); - EXPECT_EQ("251104-11-20T12:21:07", - Format(civil_second(1970, 1, 1, kIntMax, kIntMax, kIntMax))); - EXPECT_EQ("6130715-05-30T12:21:07", - Format(civil_second(1970, 1, kIntMax, kIntMax, kIntMax, kIntMax))); - EXPECT_EQ( - "185087685-11-26T12:21:07", - Format(civil_second(1970, kIntMax, kIntMax, kIntMax, kIntMax, kIntMax))); - - const int kIntMin = std::numeric_limits<int>::min(); - EXPECT_EQ("1901-12-13T20:45:52", - Format(civil_second(1970, 1, 1, 0, 0, kIntMin))); - EXPECT_EQ("-2182-11-20T18:37:52", - Format(civil_second(1970, 1, 1, 0, kIntMin, kIntMin))); - EXPECT_EQ("-247165-02-11T10:37:52", - Format(civil_second(1970, 1, 1, kIntMin, kIntMin, kIntMin))); - EXPECT_EQ("-6126776-08-01T10:37:52", - Format(civil_second(1970, 1, kIntMin, kIntMin, kIntMin, kIntMin))); - EXPECT_EQ( - "-185083747-10-31T10:37:52", - Format(civil_second(1970, kIntMin, kIntMin, kIntMin, kIntMin, kIntMin))); -} - -TEST(CivilTime, ImplicitCrossAlignment) { - civil_year year(2015); - civil_month month = year; - civil_day day = month; - civil_hour hour = day; - civil_minute minute = hour; - civil_second second = minute; - - second = year; - EXPECT_EQ(second, year); - second = month; - EXPECT_EQ(second, month); - second = day; - EXPECT_EQ(second, day); - second = hour; - EXPECT_EQ(second, hour); - second = minute; - EXPECT_EQ(second, minute); - - minute = year; - EXPECT_EQ(minute, year); - minute = month; - EXPECT_EQ(minute, month); - minute = day; - EXPECT_EQ(minute, day); - minute = hour; - EXPECT_EQ(minute, hour); - - hour = year; - EXPECT_EQ(hour, year); - hour = month; - EXPECT_EQ(hour, month); - hour = day; - EXPECT_EQ(hour, day); - - day = year; - EXPECT_EQ(day, year); - day = month; - EXPECT_EQ(day, month); - - month = year; - EXPECT_EQ(month, year); - - // Ensures unsafe conversions are not allowed. - EXPECT_FALSE((std::is_convertible<civil_second, civil_minute>::value)); - EXPECT_FALSE((std::is_convertible<civil_second, civil_hour>::value)); - EXPECT_FALSE((std::is_convertible<civil_second, civil_day>::value)); - EXPECT_FALSE((std::is_convertible<civil_second, civil_month>::value)); - EXPECT_FALSE((std::is_convertible<civil_second, civil_year>::value)); - - EXPECT_FALSE((std::is_convertible<civil_minute, civil_hour>::value)); - EXPECT_FALSE((std::is_convertible<civil_minute, civil_day>::value)); - EXPECT_FALSE((std::is_convertible<civil_minute, civil_month>::value)); - EXPECT_FALSE((std::is_convertible<civil_minute, civil_year>::value)); - - EXPECT_FALSE((std::is_convertible<civil_hour, civil_day>::value)); - EXPECT_FALSE((std::is_convertible<civil_hour, civil_month>::value)); - EXPECT_FALSE((std::is_convertible<civil_hour, civil_year>::value)); - - EXPECT_FALSE((std::is_convertible<civil_day, civil_month>::value)); - EXPECT_FALSE((std::is_convertible<civil_day, civil_year>::value)); - - EXPECT_FALSE((std::is_convertible<civil_month, civil_year>::value)); -} - -TEST(CivilTime, ExplicitCrossAlignment) { - // - // Assign from smaller units -> larger units - // - - civil_second second(2015, 1, 2, 3, 4, 5); - EXPECT_EQ("2015-01-02T03:04:05", Format(second)); - - civil_minute minute(second); - EXPECT_EQ("2015-01-02T03:04", Format(minute)); - - civil_hour hour(minute); - EXPECT_EQ("2015-01-02T03", Format(hour)); - - civil_day day(hour); - EXPECT_EQ("2015-01-02", Format(day)); - - civil_month month(day); - EXPECT_EQ("2015-01", Format(month)); - - civil_year year(month); - EXPECT_EQ("2015", Format(year)); - - // - // Now assign from larger units -> smaller units - // - - month = civil_month(year); - EXPECT_EQ("2015-01", Format(month)); - - day = civil_day(month); - EXPECT_EQ("2015-01-01", Format(day)); - - hour = civil_hour(day); - EXPECT_EQ("2015-01-01T00", Format(hour)); - - minute = civil_minute(hour); - EXPECT_EQ("2015-01-01T00:00", Format(minute)); - - second = civil_second(minute); - EXPECT_EQ("2015-01-01T00:00:00", Format(second)); -} - -// Metafunction to test whether difference is allowed between two types. -template <typename T1, typename T2> -struct HasDifference { - template <typename U1, typename U2> - static std::false_type test(...); - template <typename U1, typename U2> - static std::true_type test(decltype(std::declval<U1>() - std::declval<U2>())); - static constexpr bool value = decltype(test<T1, T2>(0))::value; -}; - -TEST(CivilTime, DisallowCrossAlignedDifference) { - // Difference is allowed between types with the same alignment. - static_assert(HasDifference<civil_second, civil_second>::value, ""); - static_assert(HasDifference<civil_minute, civil_minute>::value, ""); - static_assert(HasDifference<civil_hour, civil_hour>::value, ""); - static_assert(HasDifference<civil_day, civil_day>::value, ""); - static_assert(HasDifference<civil_month, civil_month>::value, ""); - static_assert(HasDifference<civil_year, civil_year>::value, ""); - - // Difference is disallowed between types with different alignments. - static_assert(!HasDifference<civil_second, civil_minute>::value, ""); - static_assert(!HasDifference<civil_second, civil_hour>::value, ""); - static_assert(!HasDifference<civil_second, civil_day>::value, ""); - static_assert(!HasDifference<civil_second, civil_month>::value, ""); - static_assert(!HasDifference<civil_second, civil_year>::value, ""); - - static_assert(!HasDifference<civil_minute, civil_hour>::value, ""); - static_assert(!HasDifference<civil_minute, civil_day>::value, ""); - static_assert(!HasDifference<civil_minute, civil_month>::value, ""); - static_assert(!HasDifference<civil_minute, civil_year>::value, ""); - - static_assert(!HasDifference<civil_hour, civil_day>::value, ""); - static_assert(!HasDifference<civil_hour, civil_month>::value, ""); - static_assert(!HasDifference<civil_hour, civil_year>::value, ""); - - static_assert(!HasDifference<civil_day, civil_month>::value, ""); - static_assert(!HasDifference<civil_day, civil_year>::value, ""); - - static_assert(!HasDifference<civil_month, civil_year>::value, ""); -} - -TEST(CivilTime, ValueSemantics) { - const civil_hour a(2015, 1, 2, 3); - const civil_hour b = a; - const civil_hour c(b); - civil_hour d; - d = c; - EXPECT_EQ("2015-01-02T03", Format(d)); -} - -TEST(CivilTime, Relational) { - // Tests that the alignment unit is ignored in comparison. - const civil_year year(2014); - const civil_month month(year); - EXPECT_EQ(year, month); - -#define TEST_RELATIONAL(OLDER, YOUNGER) \ - do { \ - EXPECT_FALSE(OLDER < OLDER); \ - EXPECT_FALSE(OLDER > OLDER); \ - EXPECT_TRUE(OLDER >= OLDER); \ - EXPECT_TRUE(OLDER <= OLDER); \ - EXPECT_FALSE(YOUNGER < YOUNGER); \ - EXPECT_FALSE(YOUNGER > YOUNGER); \ - EXPECT_TRUE(YOUNGER >= YOUNGER); \ - EXPECT_TRUE(YOUNGER <= YOUNGER); \ - EXPECT_EQ(OLDER, OLDER); \ - EXPECT_NE(OLDER, YOUNGER); \ - EXPECT_LT(OLDER, YOUNGER); \ - EXPECT_LE(OLDER, YOUNGER); \ - EXPECT_GT(YOUNGER, OLDER); \ - EXPECT_GE(YOUNGER, OLDER); \ - } while (0) - - // Alignment is ignored in comparison (verified above), so kSecond is used - // to test comparison in all field positions. - TEST_RELATIONAL(civil_second(2014, 1, 1, 0, 0, 0), - civil_second(2015, 1, 1, 0, 0, 0)); - TEST_RELATIONAL(civil_second(2014, 1, 1, 0, 0, 0), - civil_second(2014, 2, 1, 0, 0, 0)); - TEST_RELATIONAL(civil_second(2014, 1, 1, 0, 0, 0), - civil_second(2014, 1, 2, 0, 0, 0)); - TEST_RELATIONAL(civil_second(2014, 1, 1, 0, 0, 0), - civil_second(2014, 1, 1, 1, 0, 0)); - TEST_RELATIONAL(civil_second(2014, 1, 1, 1, 0, 0), - civil_second(2014, 1, 1, 1, 1, 0)); - TEST_RELATIONAL(civil_second(2014, 1, 1, 1, 1, 0), - civil_second(2014, 1, 1, 1, 1, 1)); - - // Tests the relational operators of two different civil-time types. - TEST_RELATIONAL(civil_day(2014, 1, 1), civil_minute(2014, 1, 1, 1, 1)); - TEST_RELATIONAL(civil_day(2014, 1, 1), civil_month(2014, 2)); - -#undef TEST_RELATIONAL -} - -TEST(CivilTime, Arithmetic) { - civil_second second(2015, 1, 2, 3, 4, 5); - EXPECT_EQ("2015-01-02T03:04:06", Format(second += 1)); - EXPECT_EQ("2015-01-02T03:04:07", Format(second + 1)); - EXPECT_EQ("2015-01-02T03:04:08", Format(2 + second)); - EXPECT_EQ("2015-01-02T03:04:05", Format(second - 1)); - EXPECT_EQ("2015-01-02T03:04:05", Format(second -= 1)); - EXPECT_EQ("2015-01-02T03:04:05", Format(second++)); - EXPECT_EQ("2015-01-02T03:04:07", Format(++second)); - EXPECT_EQ("2015-01-02T03:04:07", Format(second--)); - EXPECT_EQ("2015-01-02T03:04:05", Format(--second)); - - civil_minute minute(2015, 1, 2, 3, 4); - EXPECT_EQ("2015-01-02T03:05", Format(minute += 1)); - EXPECT_EQ("2015-01-02T03:06", Format(minute + 1)); - EXPECT_EQ("2015-01-02T03:07", Format(2 + minute)); - EXPECT_EQ("2015-01-02T03:04", Format(minute - 1)); - EXPECT_EQ("2015-01-02T03:04", Format(minute -= 1)); - EXPECT_EQ("2015-01-02T03:04", Format(minute++)); - EXPECT_EQ("2015-01-02T03:06", Format(++minute)); - EXPECT_EQ("2015-01-02T03:06", Format(minute--)); - EXPECT_EQ("2015-01-02T03:04", Format(--minute)); - - civil_hour hour(2015, 1, 2, 3); - EXPECT_EQ("2015-01-02T04", Format(hour += 1)); - EXPECT_EQ("2015-01-02T05", Format(hour + 1)); - EXPECT_EQ("2015-01-02T06", Format(2 + hour)); - EXPECT_EQ("2015-01-02T03", Format(hour - 1)); - EXPECT_EQ("2015-01-02T03", Format(hour -= 1)); - EXPECT_EQ("2015-01-02T03", Format(hour++)); - EXPECT_EQ("2015-01-02T05", Format(++hour)); - EXPECT_EQ("2015-01-02T05", Format(hour--)); - EXPECT_EQ("2015-01-02T03", Format(--hour)); - - civil_day day(2015, 1, 2); - EXPECT_EQ("2015-01-03", Format(day += 1)); - EXPECT_EQ("2015-01-04", Format(day + 1)); - EXPECT_EQ("2015-01-05", Format(2 + day)); - EXPECT_EQ("2015-01-02", Format(day - 1)); - EXPECT_EQ("2015-01-02", Format(day -= 1)); - EXPECT_EQ("2015-01-02", Format(day++)); - EXPECT_EQ("2015-01-04", Format(++day)); - EXPECT_EQ("2015-01-04", Format(day--)); - EXPECT_EQ("2015-01-02", Format(--day)); - - civil_month month(2015, 1); - EXPECT_EQ("2015-02", Format(month += 1)); - EXPECT_EQ("2015-03", Format(month + 1)); - EXPECT_EQ("2015-04", Format(2 + month)); - EXPECT_EQ("2015-01", Format(month - 1)); - EXPECT_EQ("2015-01", Format(month -= 1)); - EXPECT_EQ("2015-01", Format(month++)); - EXPECT_EQ("2015-03", Format(++month)); - EXPECT_EQ("2015-03", Format(month--)); - EXPECT_EQ("2015-01", Format(--month)); - - civil_year year(2015); - EXPECT_EQ("2016", Format(year += 1)); - EXPECT_EQ("2017", Format(year + 1)); - EXPECT_EQ("2018", Format(2 + year)); - EXPECT_EQ("2015", Format(year - 1)); - EXPECT_EQ("2015", Format(year -= 1)); - EXPECT_EQ("2015", Format(year++)); - EXPECT_EQ("2017", Format(++year)); - EXPECT_EQ("2017", Format(year--)); - EXPECT_EQ("2015", Format(--year)); -} - -TEST(CivilTime, ArithmeticLimits) { - const int kIntMax = std::numeric_limits<int>::max(); - const int kIntMin = std::numeric_limits<int>::min(); - - civil_second second(1970, 1, 1, 0, 0, 0); - second += kIntMax; - EXPECT_EQ("2038-01-19T03:14:07", Format(second)); - second -= kIntMax; - EXPECT_EQ("1970-01-01T00:00:00", Format(second)); - second += kIntMin; - EXPECT_EQ("1901-12-13T20:45:52", Format(second)); - second -= kIntMin; - EXPECT_EQ("1970-01-01T00:00:00", Format(second)); - - civil_minute minute(1970, 1, 1, 0, 0); - minute += kIntMax; - EXPECT_EQ("6053-01-23T02:07", Format(minute)); - minute -= kIntMax; - EXPECT_EQ("1970-01-01T00:00", Format(minute)); - minute += kIntMin; - EXPECT_EQ("-2114-12-08T21:52", Format(minute)); - minute -= kIntMin; - EXPECT_EQ("1970-01-01T00:00", Format(minute)); - - civil_hour hour(1970, 1, 1, 0); - hour += kIntMax; - EXPECT_EQ("246953-10-09T07", Format(hour)); - hour -= kIntMax; - EXPECT_EQ("1970-01-01T00", Format(hour)); - hour += kIntMin; - EXPECT_EQ("-243014-03-24T16", Format(hour)); - hour -= kIntMin; - EXPECT_EQ("1970-01-01T00", Format(hour)); - - civil_day day(1970, 1, 1); - day += kIntMax; - EXPECT_EQ("5881580-07-11", Format(day)); - day -= kIntMax; - EXPECT_EQ("1970-01-01", Format(day)); - day += kIntMin; - EXPECT_EQ("-5877641-06-23", Format(day)); - day -= kIntMin; - EXPECT_EQ("1970-01-01", Format(day)); - - civil_month month(1970, 1); - month += kIntMax; - EXPECT_EQ("178958940-08", Format(month)); - month -= kIntMax; - EXPECT_EQ("1970-01", Format(month)); - month += kIntMin; - EXPECT_EQ("-178955001-05", Format(month)); - month -= kIntMin; - EXPECT_EQ("1970-01", Format(month)); - - civil_year year(0); - year += kIntMax; - EXPECT_EQ("2147483647", Format(year)); - year -= kIntMax; - EXPECT_EQ("0", Format(year)); - year += kIntMin; - EXPECT_EQ("-2147483648", Format(year)); - year -= kIntMin; - EXPECT_EQ("0", Format(year)); -} - -TEST(CivilTime, ArithmeticDifference) { - civil_second second(2015, 1, 2, 3, 4, 5); - EXPECT_EQ(0, second - second); - EXPECT_EQ(10, (second + 10) - second); - EXPECT_EQ(-10, (second - 10) - second); - - civil_minute minute(2015, 1, 2, 3, 4); - EXPECT_EQ(0, minute - minute); - EXPECT_EQ(10, (minute + 10) - minute); - EXPECT_EQ(-10, (minute - 10) - minute); - - civil_hour hour(2015, 1, 2, 3); - EXPECT_EQ(0, hour - hour); - EXPECT_EQ(10, (hour + 10) - hour); - EXPECT_EQ(-10, (hour - 10) - hour); - - civil_day day(2015, 1, 2); - EXPECT_EQ(0, day - day); - EXPECT_EQ(10, (day + 10) - day); - EXPECT_EQ(-10, (day - 10) - day); - - civil_month month(2015, 1); - EXPECT_EQ(0, month - month); - EXPECT_EQ(10, (month + 10) - month); - EXPECT_EQ(-10, (month - 10) - month); - - civil_year year(2015); - EXPECT_EQ(0, year - year); - EXPECT_EQ(10, (year + 10) - year); - EXPECT_EQ(-10, (year - 10) - year); -} - -TEST(CivilTime, DifferenceLimits) { - const int kIntMax = std::numeric_limits<int>::max(); - const int kIntMin = std::numeric_limits<int>::min(); - - // Check day arithmetic at the end of the year range. - const civil_day max_day(kIntMax, 12, 31); - EXPECT_EQ(1, max_day - (max_day - 1)); - EXPECT_EQ(-1, (max_day - 1) - max_day); - - // Check day arithmetic at the end of the year range. - const civil_day min_day(kIntMin, 1, 1); - EXPECT_EQ(1, (min_day + 1) - min_day); - EXPECT_EQ(-1, min_day - (min_day + 1)); - - // Check the limits of the return value. - const civil_day d1(1970, 1, 1); - const civil_day d2(5881580, 7, 11); - EXPECT_EQ(kIntMax, d2 - d1); - EXPECT_EQ(kIntMin, d1 - (d2 + 1)); -} - -TEST(CivilTime, Properties) { - civil_second ss(2015, 2, 3, 4, 5, 6); - EXPECT_EQ(2015, ss.year()); - EXPECT_EQ(2, ss.month()); - EXPECT_EQ(3, ss.day()); - EXPECT_EQ(4, ss.hour()); - EXPECT_EQ(5, ss.minute()); - EXPECT_EQ(6, ss.second()); - EXPECT_EQ(weekday::tuesday, get_weekday(ss)); - EXPECT_EQ(34, get_yearday(ss)); - - civil_minute mm(2015, 2, 3, 4, 5, 6); - EXPECT_EQ(2015, mm.year()); - EXPECT_EQ(2, mm.month()); - EXPECT_EQ(3, mm.day()); - EXPECT_EQ(4, mm.hour()); - EXPECT_EQ(5, mm.minute()); - EXPECT_EQ(0, mm.second()); - EXPECT_EQ(weekday::tuesday, get_weekday(mm)); - EXPECT_EQ(34, get_yearday(mm)); - - civil_hour hh(2015, 2, 3, 4, 5, 6); - EXPECT_EQ(2015, hh.year()); - EXPECT_EQ(2, hh.month()); - EXPECT_EQ(3, hh.day()); - EXPECT_EQ(4, hh.hour()); - EXPECT_EQ(0, hh.minute()); - EXPECT_EQ(0, hh.second()); - EXPECT_EQ(weekday::tuesday, get_weekday(hh)); - EXPECT_EQ(34, get_yearday(hh)); - - civil_day d(2015, 2, 3, 4, 5, 6); - EXPECT_EQ(2015, d.year()); - EXPECT_EQ(2, d.month()); - EXPECT_EQ(3, d.day()); - EXPECT_EQ(0, d.hour()); - EXPECT_EQ(0, d.minute()); - EXPECT_EQ(0, d.second()); - EXPECT_EQ(weekday::tuesday, get_weekday(d)); - EXPECT_EQ(34, get_yearday(d)); - - civil_month m(2015, 2, 3, 4, 5, 6); - EXPECT_EQ(2015, m.year()); - EXPECT_EQ(2, m.month()); - EXPECT_EQ(1, m.day()); - EXPECT_EQ(0, m.hour()); - EXPECT_EQ(0, m.minute()); - EXPECT_EQ(0, m.second()); - EXPECT_EQ(weekday::sunday, get_weekday(m)); - EXPECT_EQ(32, get_yearday(m)); - - civil_year y(2015, 2, 3, 4, 5, 6); - EXPECT_EQ(2015, y.year()); - EXPECT_EQ(1, y.month()); - EXPECT_EQ(1, y.day()); - EXPECT_EQ(0, y.hour()); - EXPECT_EQ(0, y.minute()); - EXPECT_EQ(0, y.second()); - EXPECT_EQ(weekday::thursday, get_weekday(y)); - EXPECT_EQ(1, get_yearday(y)); -} - -TEST(CivilTime, OutputStream) { - // Tests formatting of civil_year, which does not pad. - EXPECT_EQ("2016", Format(civil_year(2016))); - EXPECT_EQ("123", Format(civil_year(123))); - EXPECT_EQ("0", Format(civil_year(0))); - EXPECT_EQ("-1", Format(civil_year(-1))); - - // Tests formatting of sub-year types, which pad to 2 digits - EXPECT_EQ("2016-02", Format(civil_month(2016, 2))); - EXPECT_EQ("2016-02-03", Format(civil_day(2016, 2, 3))); - EXPECT_EQ("2016-02-03T04", Format(civil_hour(2016, 2, 3, 4))); - EXPECT_EQ("2016-02-03T04:05", Format(civil_minute(2016, 2, 3, 4, 5))); - EXPECT_EQ("2016-02-03T04:05:06", Format(civil_second(2016, 2, 3, 4, 5, 6))); - - // Tests formatting of weekday. - EXPECT_EQ("Monday", Format(weekday::monday)); - EXPECT_EQ("Tuesday", Format(weekday::tuesday)); - EXPECT_EQ("Wednesday", Format(weekday::wednesday)); - EXPECT_EQ("Thursday", Format(weekday::thursday)); - EXPECT_EQ("Friday", Format(weekday::friday)); - EXPECT_EQ("Saturday", Format(weekday::saturday)); - EXPECT_EQ("Sunday", Format(weekday::sunday)); -} - -TEST(CivilTime, OutputStreamLeftFillWidth) { - civil_second cs(2016, 2, 3, 4, 5, 6); - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << civil_year(cs); - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..2016.................X..", ss.str()); - } - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << civil_month(cs); - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..2016-02..............X..", ss.str()); - } - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << civil_day(cs); - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..2016-02-03...........X..", ss.str()); - } - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << civil_hour(cs); - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..2016-02-03T04........X..", ss.str()); - } - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << civil_minute(cs); - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..2016-02-03T04:05.....X..", ss.str()); - } - { - std::stringstream ss; - ss << std::left << std::setfill('.'); - ss << std::setw(3) << 'X'; - ss << std::setw(21) << civil_second(cs); - ss << std::setw(3) << 'X'; - EXPECT_EQ("X..2016-02-03T04:05:06..X..", ss.str()); - } -} - -TEST(CivilTime, NextPrevWeekday) { - // Jan 1, 1970 was a Thursday. - const civil_day thursday(1970, 1, 1); - EXPECT_EQ(weekday::thursday, get_weekday(thursday)); - - // Thursday -> Thursday - civil_day d = next_weekday(thursday, weekday::thursday); - EXPECT_EQ(7, d - thursday) << Format(d); - EXPECT_EQ(d - 14, prev_weekday(thursday, weekday::thursday)); - - // Thursday -> Friday - d = next_weekday(thursday, weekday::friday); - EXPECT_EQ(1, d - thursday) << Format(d); - EXPECT_EQ(d - 7, prev_weekday(thursday, weekday::friday)); - - // Thursday -> Saturday - d = next_weekday(thursday, weekday::saturday); - EXPECT_EQ(2, d - thursday) << Format(d); - EXPECT_EQ(d - 7, prev_weekday(thursday, weekday::saturday)); - - // Thursday -> Sunday - d = next_weekday(thursday, weekday::sunday); - EXPECT_EQ(3, d - thursday) << Format(d); - EXPECT_EQ(d - 7, prev_weekday(thursday, weekday::sunday)); - - // Thursday -> Monday - d = next_weekday(thursday, weekday::monday); - EXPECT_EQ(4, d - thursday) << Format(d); - EXPECT_EQ(d - 7, prev_weekday(thursday, weekday::monday)); - - // Thursday -> Tuesday - d = next_weekday(thursday, weekday::tuesday); - EXPECT_EQ(5, d - thursday) << Format(d); - EXPECT_EQ(d - 7, prev_weekday(thursday, weekday::tuesday)); - - // Thursday -> Wednesday - d = next_weekday(thursday, weekday::wednesday); - EXPECT_EQ(6, d - thursday) << Format(d); - EXPECT_EQ(d - 7, prev_weekday(thursday, weekday::wednesday)); -} - -TEST(CivilTime, NormalizeWithHugeYear) { - civil_month c(9223372036854775807, 1); - EXPECT_EQ("9223372036854775807-01", Format(c)); - c = c - 1; // Causes normalization - EXPECT_EQ("9223372036854775806-12", Format(c)); - - c = civil_month(-9223372036854775807 - 1, 1); - EXPECT_EQ("-9223372036854775808-01", Format(c)); - c = c + 12; // Causes normalization - EXPECT_EQ("-9223372036854775807-01", Format(c)); -} - -TEST(CivilTime, LeapYears) { - // Test data for leap years. - const struct { - int year; - int days; - struct { - int month; - int day; - } leap_day; // The date of the day after Feb 28. - } kLeapYearTable[]{ - {1900, 365, {3, 1}}, {1999, 365, {3, 1}}, - {2000, 366, {2, 29}}, // leap year - {2001, 365, {3, 1}}, {2002, 365, {3, 1}}, - {2003, 365, {3, 1}}, {2004, 366, {2, 29}}, // leap year - {2005, 365, {3, 1}}, {2006, 365, {3, 1}}, - {2007, 365, {3, 1}}, {2008, 366, {2, 29}}, // leap year - {2009, 365, {3, 1}}, {2100, 365, {3, 1}}, - }; - - for (const auto& e : kLeapYearTable) { - // Tests incrementing through the leap day. - const civil_day feb28(e.year, 2, 28); - const civil_day next_day = feb28 + 1; - EXPECT_EQ(e.leap_day.month, next_day.month()); - EXPECT_EQ(e.leap_day.day, next_day.day()); - - // Tests difference in days of leap years. - const civil_year year(feb28); - const civil_year next_year = year + 1; - EXPECT_EQ(e.days, civil_day(next_year) - civil_day(year)); - } -} - -TEST(CivilTime, FirstThursdayInMonth) { - const civil_day nov1(2014, 11, 1); - const civil_day thursday = next_weekday(nov1 - 1, weekday::thursday); - EXPECT_EQ("2014-11-06", Format(thursday)); - - // Bonus: Date of Thanksgiving in the United States - // Rule: Fourth Thursday of November - const civil_day thanksgiving = thursday + 7 * 3; - EXPECT_EQ("2014-11-27", Format(thanksgiving)); -} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_fixed.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_fixed.cc deleted file mode 100644 index 303c0244a8..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_fixed.cc +++ /dev/null @@ -1,140 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "time_zone_fixed.h" - -#include <algorithm> -#include <cassert> -#include <chrono> -#include <cstring> -#include <string> - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -namespace { - -// The prefix used for the internal names of fixed-offset zones. -const char kFixedZonePrefix[] = "Fixed/UTC"; - -const char kDigits[] = "0123456789"; - -char* Format02d(char* p, int v) { - *p++ = kDigits[(v / 10) % 10]; - *p++ = kDigits[v % 10]; - return p; -} - -int Parse02d(const char* p) { - if (const char* ap = std::strchr(kDigits, *p)) { - int v = static_cast<int>(ap - kDigits); - if (const char* bp = std::strchr(kDigits, *++p)) { - return (v * 10) + static_cast<int>(bp - kDigits); - } - } - return -1; -} - -} // namespace - -bool FixedOffsetFromName(const std::string& name, seconds* offset) { - if (name.compare(0, std::string::npos, "UTC", 3) == 0) { - *offset = seconds::zero(); - return true; - } - - const std::size_t prefix_len = sizeof(kFixedZonePrefix) - 1; - const char* const ep = kFixedZonePrefix + prefix_len; - if (name.size() != prefix_len + 9) // <prefix>+99:99:99 - return false; - if (!std::equal(kFixedZonePrefix, ep, name.begin())) return false; - const char* np = name.data() + prefix_len; - if (np[0] != '+' && np[0] != '-') return false; - if (np[3] != ':' || np[6] != ':') // see note below about large offsets - return false; - - int hours = Parse02d(np + 1); - if (hours == -1) return false; - int mins = Parse02d(np + 4); - if (mins == -1) return false; - int secs = Parse02d(np + 7); - if (secs == -1) return false; - - secs += ((hours * 60) + mins) * 60; - if (secs > 24 * 60 * 60) return false; // outside supported offset range - *offset = seconds(secs * (np[0] == '-' ? -1 : 1)); // "-" means west - return true; -} - -std::string FixedOffsetToName(const seconds& offset) { - if (offset == seconds::zero()) return "UTC"; - if (offset < std::chrono::hours(-24) || offset > std::chrono::hours(24)) { - // We don't support fixed-offset zones more than 24 hours - // away from UTC to avoid complications in rendering such - // offsets and to (somewhat) limit the total number of zones. - return "UTC"; - } - int offset_seconds = static_cast<int>(offset.count()); - const char sign = (offset_seconds < 0 ? '-' : '+'); - int offset_minutes = offset_seconds / 60; - offset_seconds %= 60; - if (sign == '-') { - if (offset_seconds > 0) { - offset_seconds -= 60; - offset_minutes += 1; - } - offset_seconds = -offset_seconds; - offset_minutes = -offset_minutes; - } - int offset_hours = offset_minutes / 60; - offset_minutes %= 60; - const std::size_t prefix_len = sizeof(kFixedZonePrefix) - 1; - char buf[prefix_len + sizeof("-24:00:00")]; - char* ep = std::copy(kFixedZonePrefix, kFixedZonePrefix + prefix_len, buf); - *ep++ = sign; - ep = Format02d(ep, offset_hours); - *ep++ = ':'; - ep = Format02d(ep, offset_minutes); - *ep++ = ':'; - ep = Format02d(ep, offset_seconds); - *ep++ = '\0'; - assert(ep == buf + sizeof(buf)); - return buf; -} - -std::string FixedOffsetToAbbr(const seconds& offset) { - std::string abbr = FixedOffsetToName(offset); - const std::size_t prefix_len = sizeof(kFixedZonePrefix) - 1; - if (abbr.size() == prefix_len + 9) { // <prefix>+99:99:99 - abbr.erase(0, prefix_len); // +99:99:99 - abbr.erase(6, 1); // +99:9999 - abbr.erase(3, 1); // +999999 - if (abbr[5] == '0' && abbr[6] == '0') { // +999900 - abbr.erase(5, 2); // +9999 - if (abbr[3] == '0' && abbr[4] == '0') { // +9900 - abbr.erase(3, 2); // +99 - } - } - } - return abbr; -} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_fixed.h b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_fixed.h deleted file mode 100644 index e74a0bbd9d..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_fixed.h +++ /dev/null @@ -1,52 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_FIXED_H_ -#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_FIXED_H_ - -#include <string> - -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -// Helper functions for dealing with the names and abbreviations -// of time zones that are a fixed offset (seconds east) from UTC. -// FixedOffsetFromName() extracts the offset from a valid fixed-offset -// name, while FixedOffsetToName() and FixedOffsetToAbbr() generate -// the canonical zone name and abbreviation respectively for the given -// offset. -// -// A fixed-offset name looks like "Fixed/UTC<+-><hours>:<mins>:<secs>". -// Its abbreviation is of the form "UTC(<+->H?H(MM(SS)?)?)?" where the -// optional pieces are omitted when their values are zero. (Note that -// the sign is the opposite of that used in a POSIX TZ specification.) -// -// Note: FixedOffsetFromName() fails on syntax errors or when the parsed -// offset exceeds 24 hours. FixedOffsetToName() and FixedOffsetToAbbr() -// both produce "UTC" when the argument offset exceeds 24 hours. -bool FixedOffsetFromName(const std::string& name, seconds* offset); -std::string FixedOffsetToName(const seconds& offset); -std::string FixedOffsetToAbbr(const seconds& offset); - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_FIXED_H_ diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_format.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_format.cc deleted file mode 100644 index 2e02233ce1..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_format.cc +++ /dev/null @@ -1,1015 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#if !defined(HAS_STRPTIME) -#if !defined(_MSC_VER) && !defined(__MINGW32__) -#define HAS_STRPTIME 1 // assume everyone has strptime() except windows -#endif -#endif - -#if defined(HAS_STRPTIME) && HAS_STRPTIME -#if !defined(_XOPEN_SOURCE) -#define _XOPEN_SOURCE // Definedness suffices for strptime. -#endif -#endif - -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" - -// Include time.h directly since, by C++ standards, ctime doesn't have to -// declare strptime. -#include <time.h> - -#include <cctype> -#include <chrono> -#include <cstddef> -#include <cstdint> -#include <cstring> -#include <ctime> -#include <limits> -#include <string> -#include <vector> -#if !HAS_STRPTIME -#include <iomanip> -#include <sstream> -#endif - -#include "absl/time/internal/cctz/include/cctz/civil_time.h" -#include "time_zone_if.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { -namespace detail { - -namespace { - -#if !HAS_STRPTIME -// Build a strptime() using C++11's std::get_time(). -char* strptime(const char* s, const char* fmt, std::tm* tm) { - std::istringstream input(s); - input >> std::get_time(tm, fmt); - if (input.fail()) return nullptr; - return const_cast<char*>(s) + - (input.eof() ? strlen(s) : static_cast<std::size_t>(input.tellg())); -} -#endif - -// Convert a cctz::weekday to a tm_wday value (0-6, Sunday = 0). -int ToTmWday(weekday wd) { - switch (wd) { - case weekday::sunday: - return 0; - case weekday::monday: - return 1; - case weekday::tuesday: - return 2; - case weekday::wednesday: - return 3; - case weekday::thursday: - return 4; - case weekday::friday: - return 5; - case weekday::saturday: - return 6; - } - return 0; /*NOTREACHED*/ -} - -// Convert a tm_wday value (0-6, Sunday = 0) to a cctz::weekday. -weekday FromTmWday(int tm_wday) { - switch (tm_wday) { - case 0: - return weekday::sunday; - case 1: - return weekday::monday; - case 2: - return weekday::tuesday; - case 3: - return weekday::wednesday; - case 4: - return weekday::thursday; - case 5: - return weekday::friday; - case 6: - return weekday::saturday; - } - return weekday::sunday; /*NOTREACHED*/ -} - -std::tm ToTM(const time_zone::absolute_lookup& al) { - std::tm tm{}; - tm.tm_sec = al.cs.second(); - tm.tm_min = al.cs.minute(); - tm.tm_hour = al.cs.hour(); - tm.tm_mday = al.cs.day(); - tm.tm_mon = al.cs.month() - 1; - - // Saturate tm.tm_year is cases of over/underflow. - if (al.cs.year() < std::numeric_limits<int>::min() + 1900) { - tm.tm_year = std::numeric_limits<int>::min(); - } else if (al.cs.year() - 1900 > std::numeric_limits<int>::max()) { - tm.tm_year = std::numeric_limits<int>::max(); - } else { - tm.tm_year = static_cast<int>(al.cs.year() - 1900); - } - - tm.tm_wday = ToTmWday(get_weekday(al.cs)); - tm.tm_yday = get_yearday(al.cs) - 1; - tm.tm_isdst = al.is_dst ? 1 : 0; - return tm; -} - -// Returns the week of the year [0:53] given a civil day and the day on -// which weeks are defined to start. -int ToWeek(const civil_day& cd, weekday week_start) { - const civil_day d(cd.year() % 400, cd.month(), cd.day()); - return static_cast<int>((d - prev_weekday(civil_year(d), week_start)) / 7); -} - -const char kDigits[] = "0123456789"; - -// Formats a 64-bit integer in the given field width. Note that it is up -// to the caller of Format64() [and Format02d()/FormatOffset()] to ensure -// that there is sufficient space before ep to hold the conversion. -char* Format64(char* ep, int width, std::int_fast64_t v) { - bool neg = false; - if (v < 0) { - --width; - neg = true; - if (v == std::numeric_limits<std::int_fast64_t>::min()) { - // Avoid negating minimum value. - std::int_fast64_t last_digit = -(v % 10); - v /= 10; - if (last_digit < 0) { - ++v; - last_digit += 10; - } - --width; - *--ep = kDigits[last_digit]; - } - v = -v; - } - do { - --width; - *--ep = kDigits[v % 10]; - } while (v /= 10); - while (--width >= 0) *--ep = '0'; // zero pad - if (neg) *--ep = '-'; - return ep; -} - -// Formats [0 .. 99] as %02d. -char* Format02d(char* ep, int v) { - *--ep = kDigits[v % 10]; - *--ep = kDigits[(v / 10) % 10]; - return ep; -} - -// Formats a UTC offset, like +00:00. -char* FormatOffset(char* ep, int offset, const char* mode) { - // TODO: Follow the RFC3339 "Unknown Local Offset Convention" and - // generate a "negative zero" when we're formatting a zero offset - // as the result of a failed load_time_zone(). - char sign = '+'; - if (offset < 0) { - offset = -offset; // bounded by 24h so no overflow - sign = '-'; - } - const int seconds = offset % 60; - const int minutes = (offset /= 60) % 60; - const int hours = offset /= 60; - const char sep = mode[0]; - const bool ext = (sep != '\0' && mode[1] == '*'); - const bool ccc = (ext && mode[2] == ':'); - if (ext && (!ccc || seconds != 0)) { - ep = Format02d(ep, seconds); - *--ep = sep; - } else { - // If we're not rendering seconds, sub-minute negative offsets - // should get a positive sign (e.g., offset=-10s => "+00:00"). - if (hours == 0 && minutes == 0) sign = '+'; - } - if (!ccc || minutes != 0 || seconds != 0) { - ep = Format02d(ep, minutes); - if (sep != '\0') *--ep = sep; - } - ep = Format02d(ep, hours); - *--ep = sign; - return ep; -} - -// Formats a std::tm using strftime(3). -void FormatTM(std::string* out, const std::string& fmt, const std::tm& tm) { - // strftime(3) returns the number of characters placed in the output - // array (which may be 0 characters). It also returns 0 to indicate - // an error, like the array wasn't large enough. To accommodate this, - // the following code grows the buffer size from 2x the format string - // length up to 32x. - for (std::size_t i = 2; i != 32; i *= 2) { - std::size_t buf_size = fmt.size() * i; - std::vector<char> buf(buf_size); - if (std::size_t len = strftime(&buf[0], buf_size, fmt.c_str(), &tm)) { - out->append(&buf[0], len); - return; - } - } -} - -// Used for %E#S/%E#f specifiers and for data values in parse(). -template <typename T> -const char* ParseInt(const char* dp, int width, T min, T max, T* vp) { - if (dp != nullptr) { - const T kmin = std::numeric_limits<T>::min(); - bool erange = false; - bool neg = false; - T value = 0; - if (*dp == '-') { - neg = true; - if (width <= 0 || --width != 0) { - ++dp; - } else { - dp = nullptr; // width was 1 - } - } - if (const char* const bp = dp) { - while (const char* cp = strchr(kDigits, *dp)) { - int d = static_cast<int>(cp - kDigits); - if (d >= 10) break; - if (value < kmin / 10) { - erange = true; - break; - } - value *= 10; - if (value < kmin + d) { - erange = true; - break; - } - value -= d; - dp += 1; - if (width > 0 && --width == 0) break; - } - if (dp != bp && !erange && (neg || value != kmin)) { - if (!neg || value != 0) { - if (!neg) value = -value; // make positive - if (min <= value && value <= max) { - *vp = value; - } else { - dp = nullptr; - } - } else { - dp = nullptr; - } - } else { - dp = nullptr; - } - } - } - return dp; -} - -// The number of base-10 digits that can be represented by a signed 64-bit -// integer. That is, 10^kDigits10_64 <= 2^63 - 1 < 10^(kDigits10_64 + 1). -const int kDigits10_64 = 18; - -// 10^n for everything that can be represented by a signed 64-bit integer. -const std::int_fast64_t kExp10[kDigits10_64 + 1] = { - 1, - 10, - 100, - 1000, - 10000, - 100000, - 1000000, - 10000000, - 100000000, - 1000000000, - 10000000000, - 100000000000, - 1000000000000, - 10000000000000, - 100000000000000, - 1000000000000000, - 10000000000000000, - 100000000000000000, - 1000000000000000000, -}; - -} // namespace - -// Uses strftime(3) to format the given Time. The following extended format -// specifiers are also supported: -// -// - %Ez - RFC3339-compatible numeric UTC offset (+hh:mm or -hh:mm) -// - %E*z - Full-resolution numeric UTC offset (+hh:mm:ss or -hh:mm:ss) -// - %E#S - Seconds with # digits of fractional precision -// - %E*S - Seconds with full fractional precision (a literal '*') -// - %E4Y - Four-character years (-999 ... -001, 0000, 0001 ... 9999) -// - %ET - The RFC3339 "date-time" separator "T" -// -// The standard specifiers from RFC3339_* (%Y, %m, %d, %H, %M, and %S) are -// handled internally for performance reasons. strftime(3) is slow due to -// a POSIX requirement to respect changes to ${TZ}. -// -// The TZ/GNU %s extension is handled internally because strftime() has -// to use mktime() to generate it, and that assumes the local time zone. -// -// We also handle the %z and %Z specifiers to accommodate platforms that do -// not support the tm_gmtoff and tm_zone extensions to std::tm. -// -// Requires that zero() <= fs < seconds(1). -std::string format(const std::string& format, const time_point<seconds>& tp, - const detail::femtoseconds& fs, const time_zone& tz) { - std::string result; - result.reserve(format.size()); // A reasonable guess for the result size. - const time_zone::absolute_lookup al = tz.lookup(tp); - const std::tm tm = ToTM(al); - - // Scratch buffer for internal conversions. - char buf[3 + kDigits10_64]; // enough for longest conversion - char* const ep = buf + sizeof(buf); - char* bp; // works back from ep - - // Maintain three, disjoint subsequences that span format. - // [format.begin() ... pending) : already formatted into result - // [pending ... cur) : formatting pending, but no special cases - // [cur ... format.end()) : unexamined - // Initially, everything is in the unexamined part. - const char* pending = format.c_str(); // NUL terminated - const char* cur = pending; - const char* end = pending + format.length(); - - while (cur != end) { // while something is unexamined - // Moves cur to the next percent sign. - const char* start = cur; - while (cur != end && *cur != '%') ++cur; - - // If the new pending text is all ordinary, copy it out. - if (cur != start && pending == start) { - result.append(pending, static_cast<std::size_t>(cur - pending)); - pending = start = cur; - } - - // Span the sequential percent signs. - const char* percent = cur; - while (cur != end && *cur == '%') ++cur; - - // If the new pending text is all percents, copy out one - // percent for every matched pair, then skip those pairs. - if (cur != start && pending == start) { - std::size_t escaped = static_cast<std::size_t>(cur - pending) / 2; - result.append(pending, escaped); - pending += escaped * 2; - // Also copy out a single trailing percent. - if (pending != cur && cur == end) { - result.push_back(*pending++); - } - } - - // Loop unless we have an unescaped percent. - if (cur == end || (cur - percent) % 2 == 0) continue; - - // Simple specifiers that we handle ourselves. - if (strchr("YmdeUuWwHMSzZs%", *cur)) { - if (cur - 1 != pending) { - FormatTM(&result, std::string(pending, cur - 1), tm); - } - switch (*cur) { - case 'Y': - // This avoids the tm.tm_year overflow problem for %Y, however - // tm.tm_year will still be used by other specifiers like %D. - bp = Format64(ep, 0, al.cs.year()); - result.append(bp, static_cast<std::size_t>(ep - bp)); - break; - case 'm': - bp = Format02d(ep, al.cs.month()); - result.append(bp, static_cast<std::size_t>(ep - bp)); - break; - case 'd': - case 'e': - bp = Format02d(ep, al.cs.day()); - if (*cur == 'e' && *bp == '0') *bp = ' '; // for Windows - result.append(bp, static_cast<std::size_t>(ep - bp)); - break; - case 'U': - bp = Format02d(ep, ToWeek(civil_day(al.cs), weekday::sunday)); - result.append(bp, static_cast<std::size_t>(ep - bp)); - break; - case 'u': - bp = Format64(ep, 0, tm.tm_wday ? tm.tm_wday : 7); - result.append(bp, static_cast<std::size_t>(ep - bp)); - break; - case 'W': - bp = Format02d(ep, ToWeek(civil_day(al.cs), weekday::monday)); - result.append(bp, static_cast<std::size_t>(ep - bp)); - break; - case 'w': - bp = Format64(ep, 0, tm.tm_wday); - result.append(bp, static_cast<std::size_t>(ep - bp)); - break; - case 'H': - bp = Format02d(ep, al.cs.hour()); - result.append(bp, static_cast<std::size_t>(ep - bp)); - break; - case 'M': - bp = Format02d(ep, al.cs.minute()); - result.append(bp, static_cast<std::size_t>(ep - bp)); - break; - case 'S': - bp = Format02d(ep, al.cs.second()); - result.append(bp, static_cast<std::size_t>(ep - bp)); - break; - case 'z': - bp = FormatOffset(ep, al.offset, ""); - result.append(bp, static_cast<std::size_t>(ep - bp)); - break; - case 'Z': - result.append(al.abbr); - break; - case 's': - bp = Format64(ep, 0, ToUnixSeconds(tp)); - result.append(bp, static_cast<std::size_t>(ep - bp)); - break; - case '%': - result.push_back('%'); - break; - } - pending = ++cur; - continue; - } - - // More complex specifiers that we handle ourselves. - if (*cur == ':' && cur + 1 != end) { - if (*(cur + 1) == 'z') { - // Formats %:z. - if (cur - 1 != pending) { - FormatTM(&result, std::string(pending, cur - 1), tm); - } - bp = FormatOffset(ep, al.offset, ":"); - result.append(bp, static_cast<std::size_t>(ep - bp)); - pending = cur += 2; - continue; - } - if (*(cur + 1) == ':' && cur + 2 != end) { - if (*(cur + 2) == 'z') { - // Formats %::z. - if (cur - 1 != pending) { - FormatTM(&result, std::string(pending, cur - 1), tm); - } - bp = FormatOffset(ep, al.offset, ":*"); - result.append(bp, static_cast<std::size_t>(ep - bp)); - pending = cur += 3; - continue; - } - if (*(cur + 2) == ':' && cur + 3 != end) { - if (*(cur + 3) == 'z') { - // Formats %:::z. - if (cur - 1 != pending) { - FormatTM(&result, std::string(pending, cur - 1), tm); - } - bp = FormatOffset(ep, al.offset, ":*:"); - result.append(bp, static_cast<std::size_t>(ep - bp)); - pending = cur += 4; - continue; - } - } - } - } - - // Loop if there is no E modifier. - if (*cur != 'E' || ++cur == end) continue; - - // Format our extensions. - if (*cur == 'T') { - // Formats %ET. - if (cur - 2 != pending) { - FormatTM(&result, std::string(pending, cur - 2), tm); - } - result.append("T"); - pending = ++cur; - } else if (*cur == 'z') { - // Formats %Ez. - if (cur - 2 != pending) { - FormatTM(&result, std::string(pending, cur - 2), tm); - } - bp = FormatOffset(ep, al.offset, ":"); - result.append(bp, static_cast<std::size_t>(ep - bp)); - pending = ++cur; - } else if (*cur == '*' && cur + 1 != end && *(cur + 1) == 'z') { - // Formats %E*z. - if (cur - 2 != pending) { - FormatTM(&result, std::string(pending, cur - 2), tm); - } - bp = FormatOffset(ep, al.offset, ":*"); - result.append(bp, static_cast<std::size_t>(ep - bp)); - pending = cur += 2; - } else if (*cur == '*' && cur + 1 != end && - (*(cur + 1) == 'S' || *(cur + 1) == 'f')) { - // Formats %E*S or %E*F. - if (cur - 2 != pending) { - FormatTM(&result, std::string(pending, cur - 2), tm); - } - char* cp = ep; - bp = Format64(cp, 15, fs.count()); - while (cp != bp && cp[-1] == '0') --cp; - switch (*(cur + 1)) { - case 'S': - if (cp != bp) *--bp = '.'; - bp = Format02d(bp, al.cs.second()); - break; - case 'f': - if (cp == bp) *--bp = '0'; - break; - } - result.append(bp, static_cast<std::size_t>(cp - bp)); - pending = cur += 2; - } else if (*cur == '4' && cur + 1 != end && *(cur + 1) == 'Y') { - // Formats %E4Y. - if (cur - 2 != pending) { - FormatTM(&result, std::string(pending, cur - 2), tm); - } - bp = Format64(ep, 4, al.cs.year()); - result.append(bp, static_cast<std::size_t>(ep - bp)); - pending = cur += 2; - } else if (std::isdigit(*cur)) { - // Possibly found %E#S or %E#f. - int n = 0; - if (const char* np = ParseInt(cur, 0, 0, 1024, &n)) { - if (*np == 'S' || *np == 'f') { - // Formats %E#S or %E#f. - if (cur - 2 != pending) { - FormatTM(&result, std::string(pending, cur - 2), tm); - } - bp = ep; - if (n > 0) { - if (n > kDigits10_64) n = kDigits10_64; - bp = Format64(bp, n, - (n > 15) ? fs.count() * kExp10[n - 15] - : fs.count() / kExp10[15 - n]); - if (*np == 'S') *--bp = '.'; - } - if (*np == 'S') bp = Format02d(bp, al.cs.second()); - result.append(bp, static_cast<std::size_t>(ep - bp)); - pending = cur = ++np; - } - } - } - } - - // Formats any remaining data. - if (end != pending) { - FormatTM(&result, std::string(pending, end), tm); - } - - return result; -} - -namespace { - -const char* ParseOffset(const char* dp, const char* mode, int* offset) { - if (dp != nullptr) { - const char first = *dp++; - if (first == '+' || first == '-') { - char sep = mode[0]; - int hours = 0; - int minutes = 0; - int seconds = 0; - const char* ap = ParseInt(dp, 2, 0, 23, &hours); - if (ap != nullptr && ap - dp == 2) { - dp = ap; - if (sep != '\0' && *ap == sep) ++ap; - const char* bp = ParseInt(ap, 2, 0, 59, &minutes); - if (bp != nullptr && bp - ap == 2) { - dp = bp; - if (sep != '\0' && *bp == sep) ++bp; - const char* cp = ParseInt(bp, 2, 0, 59, &seconds); - if (cp != nullptr && cp - bp == 2) dp = cp; - } - *offset = ((hours * 60 + minutes) * 60) + seconds; - if (first == '-') *offset = -*offset; - } else { - dp = nullptr; - } - } else if (first == 'Z' || first == 'z') { // Zulu - *offset = 0; - } else { - dp = nullptr; - } - } - return dp; -} - -const char* ParseZone(const char* dp, std::string* zone) { - zone->clear(); - if (dp != nullptr) { - while (*dp != '\0' && !std::isspace(*dp)) zone->push_back(*dp++); - if (zone->empty()) dp = nullptr; - } - return dp; -} - -const char* ParseSubSeconds(const char* dp, detail::femtoseconds* subseconds) { - if (dp != nullptr) { - std::int_fast64_t v = 0; - std::int_fast64_t exp = 0; - const char* const bp = dp; - while (const char* cp = strchr(kDigits, *dp)) { - int d = static_cast<int>(cp - kDigits); - if (d >= 10) break; - if (exp < 15) { - exp += 1; - v *= 10; - v += d; - } - ++dp; - } - if (dp != bp) { - v *= kExp10[15 - exp]; - *subseconds = detail::femtoseconds(v); - } else { - dp = nullptr; - } - } - return dp; -} - -// Parses a string into a std::tm using strptime(3). -const char* ParseTM(const char* dp, const char* fmt, std::tm* tm) { - if (dp != nullptr) { - dp = strptime(dp, fmt, tm); - } - return dp; -} - -// Sets year, tm_mon and tm_mday given the year, week_num, and tm_wday, -// and the day on which weeks are defined to start. -void FromWeek(int week_num, weekday week_start, year_t* year, std::tm* tm) { - const civil_year y(*year % 400); - civil_day cd = prev_weekday(y, week_start); // week 0 - cd = next_weekday(cd - 1, FromTmWday(tm->tm_wday)) + (week_num * 7); - *year += cd.year() - y.year(); - tm->tm_mon = cd.month() - 1; - tm->tm_mday = cd.day(); -} - -} // namespace - -// Uses strptime(3) to parse the given input. Supports the same extended -// format specifiers as format(), although %E#S and %E*S are treated -// identically (and similarly for %E#f and %E*f). %Ez and %E*z also accept -// the same inputs. %ET accepts either 'T' or 't'. -// -// The standard specifiers from RFC3339_* (%Y, %m, %d, %H, %M, and %S) are -// handled internally so that we can normally avoid strptime() altogether -// (which is particularly helpful when the native implementation is broken). -// -// The TZ/GNU %s extension is handled internally because strptime() has to -// use localtime_r() to generate it, and that assumes the local time zone. -// -// We also handle the %z specifier to accommodate platforms that do not -// support the tm_gmtoff extension to std::tm. %Z is parsed but ignored. -bool parse(const std::string& format, const std::string& input, - const time_zone& tz, time_point<seconds>* sec, - detail::femtoseconds* fs, std::string* err) { - // The unparsed input. - const char* data = input.c_str(); // NUL terminated - - // Skips leading whitespace. - while (std::isspace(*data)) ++data; - - const year_t kyearmax = std::numeric_limits<year_t>::max(); - const year_t kyearmin = std::numeric_limits<year_t>::min(); - - // Sets default values for unspecified fields. - bool saw_year = false; - year_t year = 1970; - std::tm tm{}; - tm.tm_year = 1970 - 1900; - tm.tm_mon = 1 - 1; // Jan - tm.tm_mday = 1; - tm.tm_hour = 0; - tm.tm_min = 0; - tm.tm_sec = 0; - tm.tm_wday = 4; // Thu - tm.tm_yday = 0; - tm.tm_isdst = 0; - auto subseconds = detail::femtoseconds::zero(); - bool saw_offset = false; - int offset = 0; // No offset from passed tz. - std::string zone = "UTC"; - - const char* fmt = format.c_str(); // NUL terminated - bool twelve_hour = false; - bool afternoon = false; - int week_num = -1; - weekday week_start = weekday::sunday; - - bool saw_percent_s = false; - std::int_fast64_t percent_s = 0; - - // Steps through format, one specifier at a time. - while (data != nullptr && *fmt != '\0') { - if (std::isspace(*fmt)) { - while (std::isspace(*data)) ++data; - while (std::isspace(*++fmt)) continue; - continue; - } - - if (*fmt != '%') { - if (*data == *fmt) { - ++data; - ++fmt; - } else { - data = nullptr; - } - continue; - } - - const char* percent = fmt; - if (*++fmt == '\0') { - data = nullptr; - continue; - } - switch (*fmt++) { - case 'Y': - // Symmetrically with FormatTime(), directly handing %Y avoids the - // tm.tm_year overflow problem. However, tm.tm_year will still be - // used by other specifiers like %D. - data = ParseInt(data, 0, kyearmin, kyearmax, &year); - if (data != nullptr) saw_year = true; - continue; - case 'm': - data = ParseInt(data, 2, 1, 12, &tm.tm_mon); - if (data != nullptr) tm.tm_mon -= 1; - week_num = -1; - continue; - case 'd': - case 'e': - data = ParseInt(data, 2, 1, 31, &tm.tm_mday); - week_num = -1; - continue; - case 'U': - data = ParseInt(data, 0, 0, 53, &week_num); - week_start = weekday::sunday; - continue; - case 'W': - data = ParseInt(data, 0, 0, 53, &week_num); - week_start = weekday::monday; - continue; - case 'u': - data = ParseInt(data, 0, 1, 7, &tm.tm_wday); - if (data != nullptr) tm.tm_wday %= 7; - continue; - case 'w': - data = ParseInt(data, 0, 0, 6, &tm.tm_wday); - continue; - case 'H': - data = ParseInt(data, 2, 0, 23, &tm.tm_hour); - twelve_hour = false; - continue; - case 'M': - data = ParseInt(data, 2, 0, 59, &tm.tm_min); - continue; - case 'S': - data = ParseInt(data, 2, 0, 60, &tm.tm_sec); - continue; - case 'I': - case 'l': - case 'r': // probably uses %I - twelve_hour = true; - break; - case 'R': // uses %H - case 'T': // uses %H - case 'c': // probably uses %H - case 'X': // probably uses %H - twelve_hour = false; - break; - case 'z': - data = ParseOffset(data, "", &offset); - if (data != nullptr) saw_offset = true; - continue; - case 'Z': // ignored; zone abbreviations are ambiguous - data = ParseZone(data, &zone); - continue; - case 's': - data = - ParseInt(data, 0, std::numeric_limits<std::int_fast64_t>::min(), - std::numeric_limits<std::int_fast64_t>::max(), &percent_s); - if (data != nullptr) saw_percent_s = true; - continue; - case ':': - if (fmt[0] == 'z' || - (fmt[0] == ':' && - (fmt[1] == 'z' || (fmt[1] == ':' && fmt[2] == 'z')))) { - data = ParseOffset(data, ":", &offset); - if (data != nullptr) saw_offset = true; - fmt += (fmt[0] == 'z') ? 1 : (fmt[1] == 'z') ? 2 : 3; - continue; - } - break; - case '%': - data = (*data == '%' ? data + 1 : nullptr); - continue; - case 'E': - if (fmt[0] == 'T') { - if (*data == 'T' || *data == 't') { - ++data; - ++fmt; - } else { - data = nullptr; - } - continue; - } - if (fmt[0] == 'z' || (fmt[0] == '*' && fmt[1] == 'z')) { - data = ParseOffset(data, ":", &offset); - if (data != nullptr) saw_offset = true; - fmt += (fmt[0] == 'z') ? 1 : 2; - continue; - } - if (fmt[0] == '*' && fmt[1] == 'S') { - data = ParseInt(data, 2, 0, 60, &tm.tm_sec); - if (data != nullptr && *data == '.') { - data = ParseSubSeconds(data + 1, &subseconds); - } - fmt += 2; - continue; - } - if (fmt[0] == '*' && fmt[1] == 'f') { - if (data != nullptr && std::isdigit(*data)) { - data = ParseSubSeconds(data, &subseconds); - } - fmt += 2; - continue; - } - if (fmt[0] == '4' && fmt[1] == 'Y') { - const char* bp = data; - data = ParseInt(data, 4, year_t{-999}, year_t{9999}, &year); - if (data != nullptr) { - if (data - bp == 4) { - saw_year = true; - } else { - data = nullptr; // stopped too soon - } - } - fmt += 2; - continue; - } - if (std::isdigit(*fmt)) { - int n = 0; // value ignored - if (const char* np = ParseInt(fmt, 0, 0, 1024, &n)) { - if (*np == 'S') { - data = ParseInt(data, 2, 0, 60, &tm.tm_sec); - if (data != nullptr && *data == '.') { - data = ParseSubSeconds(data + 1, &subseconds); - } - fmt = ++np; - continue; - } - if (*np == 'f') { - if (data != nullptr && std::isdigit(*data)) { - data = ParseSubSeconds(data, &subseconds); - } - fmt = ++np; - continue; - } - } - } - if (*fmt == 'c') twelve_hour = false; // probably uses %H - if (*fmt == 'X') twelve_hour = false; // probably uses %H - if (*fmt != '\0') ++fmt; - break; - case 'O': - if (*fmt == 'H') twelve_hour = false; - if (*fmt == 'I') twelve_hour = true; - if (*fmt != '\0') ++fmt; - break; - } - - // Parses the current specifier. - const char* orig_data = data; - std::string spec(percent, static_cast<std::size_t>(fmt - percent)); - data = ParseTM(data, spec.c_str(), &tm); - - // If we successfully parsed %p we need to remember whether the result - // was AM or PM so that we can adjust tm_hour before time_zone::lookup(). - // So reparse the input with a known AM hour, and check if it is shifted - // to a PM hour. - if (spec == "%p" && data != nullptr) { - std::string test_input = "1"; - test_input.append(orig_data, static_cast<std::size_t>(data - orig_data)); - const char* test_data = test_input.c_str(); - std::tm tmp{}; - ParseTM(test_data, "%I%p", &tmp); - afternoon = (tmp.tm_hour == 13); - } - } - - // Adjust a 12-hour tm_hour value if it should be in the afternoon. - if (twelve_hour && afternoon && tm.tm_hour < 12) { - tm.tm_hour += 12; - } - - if (data == nullptr) { - if (err != nullptr) *err = "Failed to parse input"; - return false; - } - - // Skip any remaining whitespace. - while (std::isspace(*data)) ++data; - - // parse() must consume the entire input string. - if (*data != '\0') { - if (err != nullptr) *err = "Illegal trailing data in input string"; - return false; - } - - // If we saw %s then we ignore anything else and return that time. - if (saw_percent_s) { - *sec = FromUnixSeconds(percent_s); - *fs = detail::femtoseconds::zero(); - return true; - } - - // If we saw %z, %Ez, or %E*z then we want to interpret the parsed fields - // in UTC and then shift by that offset. Otherwise we want to interpret - // the fields directly in the passed time_zone. - time_zone ptz = saw_offset ? utc_time_zone() : tz; - - // Allows a leap second of 60 to normalize forward to the following ":00". - if (tm.tm_sec == 60) { - tm.tm_sec -= 1; - offset -= 1; - subseconds = detail::femtoseconds::zero(); - } - - if (!saw_year) { - year = year_t{tm.tm_year}; - if (year > kyearmax - 1900) { - // Platform-dependent, maybe unreachable. - if (err != nullptr) *err = "Out-of-range year"; - return false; - } - year += 1900; - } - - // Compute year, tm.tm_mon and tm.tm_mday if we parsed a week number. - if (week_num != -1) FromWeek(week_num, week_start, &year, &tm); - - const int month = tm.tm_mon + 1; - civil_second cs(year, month, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec); - - // parse() should not allow normalization. Due to the restricted field - // ranges above (see ParseInt()), the only possibility is for days to roll - // into months. That is, parsing "Sep 31" should not produce "Oct 1". - if (cs.month() != month || cs.day() != tm.tm_mday) { - if (err != nullptr) *err = "Out-of-range field"; - return false; - } - - // Accounts for the offset adjustment before converting to absolute time. - if ((offset < 0 && cs > civil_second::max() + offset) || - (offset > 0 && cs < civil_second::min() + offset)) { - if (err != nullptr) *err = "Out-of-range field"; - return false; - } - cs -= offset; - - const auto tp = ptz.lookup(cs).pre; - // Checks for overflow/underflow and returns an error as necessary. - if (tp == time_point<seconds>::max()) { - const auto al = ptz.lookup(time_point<seconds>::max()); - if (cs > al.cs) { - if (err != nullptr) *err = "Out-of-range field"; - return false; - } - } - if (tp == time_point<seconds>::min()) { - const auto al = ptz.lookup(time_point<seconds>::min()); - if (cs < al.cs) { - if (err != nullptr) *err = "Out-of-range field"; - return false; - } - } - - *sec = tp; - *fs = subseconds; - return true; -} - -} // namespace detail -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_format_test.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_format_test.cc deleted file mode 100644 index e625a839fa..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_format_test.cc +++ /dev/null @@ -1,1598 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include <chrono> -#include <iomanip> -#include <sstream> -#include <string> - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/civil_time.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" - -namespace chrono = std::chrono; - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -namespace { - -// This helper is a macro so that failed expectations show up with the -// correct line numbers. -#define ExpectTime(tp, tz, y, m, d, hh, mm, ss, off, isdst, zone) \ - do { \ - time_zone::absolute_lookup al = tz.lookup(tp); \ - EXPECT_EQ(y, al.cs.year()); \ - EXPECT_EQ(m, al.cs.month()); \ - EXPECT_EQ(d, al.cs.day()); \ - EXPECT_EQ(hh, al.cs.hour()); \ - EXPECT_EQ(mm, al.cs.minute()); \ - EXPECT_EQ(ss, al.cs.second()); \ - EXPECT_EQ(off, al.offset); \ - EXPECT_TRUE(isdst == al.is_dst); \ - EXPECT_STREQ(zone, al.abbr); \ - } while (0) - -const char RFC3339_full[] = "%Y-%m-%d%ET%H:%M:%E*S%Ez"; -const char RFC3339_sec[] = "%Y-%m-%d%ET%H:%M:%S%Ez"; - -const char RFC1123_full[] = "%a, %d %b %Y %H:%M:%S %z"; -const char RFC1123_no_wday[] = "%d %b %Y %H:%M:%S %z"; - -// A helper that tests the given format specifier by itself, and with leading -// and trailing characters. For example: TestFormatSpecifier(tp, "%a", "Thu"). -template <typename D> -void TestFormatSpecifier(time_point<D> tp, time_zone tz, const std::string& fmt, - const std::string& ans) { - EXPECT_EQ(ans, format(fmt, tp, tz)) << fmt; - EXPECT_EQ("xxx " + ans, format("xxx " + fmt, tp, tz)); - EXPECT_EQ(ans + " yyy", format(fmt + " yyy", tp, tz)); - EXPECT_EQ("xxx " + ans + " yyy", format("xxx " + fmt + " yyy", tp, tz)); -} - -} // namespace - -// -// Testing format() -// - -TEST(Format, TimePointResolution) { - const char kFmt[] = "%H:%M:%E*S"; - const time_zone utc = utc_time_zone(); - const time_point<chrono::nanoseconds> t0 = - chrono::system_clock::from_time_t(1420167845) + - chrono::milliseconds(123) + chrono::microseconds(456) + - chrono::nanoseconds(789); - EXPECT_EQ( - "03:04:05.123456789", - format(kFmt, chrono::time_point_cast<chrono::nanoseconds>(t0), utc)); - EXPECT_EQ( - "03:04:05.123456", - format(kFmt, chrono::time_point_cast<chrono::microseconds>(t0), utc)); - EXPECT_EQ( - "03:04:05.123", - format(kFmt, chrono::time_point_cast<chrono::milliseconds>(t0), utc)); - EXPECT_EQ("03:04:05", - format(kFmt, chrono::time_point_cast<chrono::seconds>(t0), utc)); - EXPECT_EQ( - "03:04:05", - format(kFmt, - chrono::time_point_cast<absl::time_internal::cctz::seconds>(t0), - utc)); - EXPECT_EQ("03:04:00", - format(kFmt, chrono::time_point_cast<chrono::minutes>(t0), utc)); - EXPECT_EQ("03:00:00", - format(kFmt, chrono::time_point_cast<chrono::hours>(t0), utc)); -} - -TEST(Format, TimePointExtendedResolution) { - const char kFmt[] = "%H:%M:%E*S"; - const time_zone utc = utc_time_zone(); - const time_point<absl::time_internal::cctz::seconds> tp = - chrono::time_point_cast<absl::time_internal::cctz::seconds>( - chrono::system_clock::from_time_t(0)) + - chrono::hours(12) + chrono::minutes(34) + chrono::seconds(56); - - EXPECT_EQ( - "12:34:56.123456789012345", - detail::format(kFmt, tp, detail::femtoseconds(123456789012345), utc)); - EXPECT_EQ( - "12:34:56.012345678901234", - detail::format(kFmt, tp, detail::femtoseconds(12345678901234), utc)); - EXPECT_EQ("12:34:56.001234567890123", - detail::format(kFmt, tp, detail::femtoseconds(1234567890123), utc)); - EXPECT_EQ("12:34:56.000123456789012", - detail::format(kFmt, tp, detail::femtoseconds(123456789012), utc)); - - EXPECT_EQ("12:34:56.000000000000123", - detail::format(kFmt, tp, detail::femtoseconds(123), utc)); - EXPECT_EQ("12:34:56.000000000000012", - detail::format(kFmt, tp, detail::femtoseconds(12), utc)); - EXPECT_EQ("12:34:56.000000000000001", - detail::format(kFmt, tp, detail::femtoseconds(1), utc)); -} - -TEST(Format, Basics) { - time_zone tz = utc_time_zone(); - time_point<chrono::nanoseconds> tp = chrono::system_clock::from_time_t(0); - - // Starts with a couple basic edge cases. - EXPECT_EQ("", format("", tp, tz)); - EXPECT_EQ(" ", format(" ", tp, tz)); - EXPECT_EQ(" ", format(" ", tp, tz)); - EXPECT_EQ("xxx", format("xxx", tp, tz)); - std::string big(128, 'x'); - EXPECT_EQ(big, format(big, tp, tz)); - // Cause the 1024-byte buffer to grow. - std::string bigger(100000, 'x'); - EXPECT_EQ(bigger, format(bigger, tp, tz)); - - tp += chrono::hours(13) + chrono::minutes(4) + chrono::seconds(5); - tp += chrono::milliseconds(6) + chrono::microseconds(7) + - chrono::nanoseconds(8); - EXPECT_EQ("1970-01-01", format("%Y-%m-%d", tp, tz)); - EXPECT_EQ("13:04:05", format("%H:%M:%S", tp, tz)); - EXPECT_EQ("13:04:05.006", format("%H:%M:%E3S", tp, tz)); - EXPECT_EQ("13:04:05.006007", format("%H:%M:%E6S", tp, tz)); - EXPECT_EQ("13:04:05.006007008", format("%H:%M:%E9S", tp, tz)); -} - -TEST(Format, PosixConversions) { - const time_zone tz = utc_time_zone(); - auto tp = chrono::system_clock::from_time_t(0); - - TestFormatSpecifier(tp, tz, "%d", "01"); - TestFormatSpecifier(tp, tz, "%e", " 1"); // extension but internal support - TestFormatSpecifier(tp, tz, "%H", "00"); - TestFormatSpecifier(tp, tz, "%I", "12"); - TestFormatSpecifier(tp, tz, "%j", "001"); - TestFormatSpecifier(tp, tz, "%m", "01"); - TestFormatSpecifier(tp, tz, "%M", "00"); - TestFormatSpecifier(tp, tz, "%S", "00"); - TestFormatSpecifier(tp, tz, "%U", "00"); -#if !defined(__EMSCRIPTEN__) - TestFormatSpecifier(tp, tz, "%w", "4"); // 4=Thursday -#endif - TestFormatSpecifier(tp, tz, "%W", "00"); - TestFormatSpecifier(tp, tz, "%y", "70"); - TestFormatSpecifier(tp, tz, "%Y", "1970"); - TestFormatSpecifier(tp, tz, "%z", "+0000"); - TestFormatSpecifier(tp, tz, "%Z", "UTC"); - TestFormatSpecifier(tp, tz, "%%", "%"); - -#if defined(__linux__) - // SU/C99/TZ extensions - TestFormatSpecifier(tp, tz, "%C", "19"); - TestFormatSpecifier(tp, tz, "%D", "01/01/70"); - TestFormatSpecifier(tp, tz, "%F", "1970-01-01"); - TestFormatSpecifier(tp, tz, "%g", "70"); - TestFormatSpecifier(tp, tz, "%G", "1970"); - TestFormatSpecifier(tp, tz, "%k", " 0"); - TestFormatSpecifier(tp, tz, "%l", "12"); - TestFormatSpecifier(tp, tz, "%n", "\n"); - TestFormatSpecifier(tp, tz, "%R", "00:00"); - TestFormatSpecifier(tp, tz, "%t", "\t"); - TestFormatSpecifier(tp, tz, "%T", "00:00:00"); - TestFormatSpecifier(tp, tz, "%u", "4"); // 4=Thursday - TestFormatSpecifier(tp, tz, "%V", "01"); - TestFormatSpecifier(tp, tz, "%s", "0"); -#endif -} - -TEST(Format, LocaleSpecific) { - const time_zone tz = utc_time_zone(); - auto tp = chrono::system_clock::from_time_t(0); - - TestFormatSpecifier(tp, tz, "%a", "Thu"); - TestFormatSpecifier(tp, tz, "%A", "Thursday"); - TestFormatSpecifier(tp, tz, "%b", "Jan"); - TestFormatSpecifier(tp, tz, "%B", "January"); - - // %c should at least produce the numeric year and time-of-day. - const std::string s = format("%c", tp, utc_time_zone()); - EXPECT_THAT(s, testing::HasSubstr("1970")); - EXPECT_THAT(s, testing::HasSubstr("00:00:00")); - - TestFormatSpecifier(tp, tz, "%p", "AM"); - TestFormatSpecifier(tp, tz, "%x", "01/01/70"); - TestFormatSpecifier(tp, tz, "%X", "00:00:00"); - -#if defined(__linux__) - // SU/C99/TZ extensions - TestFormatSpecifier(tp, tz, "%h", "Jan"); // Same as %b - TestFormatSpecifier(tp, tz, "%P", "am"); - TestFormatSpecifier(tp, tz, "%r", "12:00:00 AM"); - - // Modified conversion specifiers %E_ - TestFormatSpecifier(tp, tz, "%Ec", "Thu Jan 1 00:00:00 1970"); - TestFormatSpecifier(tp, tz, "%EC", "19"); - TestFormatSpecifier(tp, tz, "%Ex", "01/01/70"); - TestFormatSpecifier(tp, tz, "%EX", "00:00:00"); - TestFormatSpecifier(tp, tz, "%Ey", "70"); - TestFormatSpecifier(tp, tz, "%EY", "1970"); - - // Modified conversion specifiers %O_ - TestFormatSpecifier(tp, tz, "%Od", "01"); - TestFormatSpecifier(tp, tz, "%Oe", " 1"); - TestFormatSpecifier(tp, tz, "%OH", "00"); - TestFormatSpecifier(tp, tz, "%OI", "12"); - TestFormatSpecifier(tp, tz, "%Om", "01"); - TestFormatSpecifier(tp, tz, "%OM", "00"); - TestFormatSpecifier(tp, tz, "%OS", "00"); - TestFormatSpecifier(tp, tz, "%Ou", "4"); // 4=Thursday - TestFormatSpecifier(tp, tz, "%OU", "00"); - TestFormatSpecifier(tp, tz, "%OV", "01"); - TestFormatSpecifier(tp, tz, "%Ow", "4"); // 4=Thursday - TestFormatSpecifier(tp, tz, "%OW", "00"); - TestFormatSpecifier(tp, tz, "%Oy", "70"); -#endif -} - -TEST(Format, Escaping) { - const time_zone tz = utc_time_zone(); - auto tp = chrono::system_clock::from_time_t(0); - - TestFormatSpecifier(tp, tz, "%%", "%"); - TestFormatSpecifier(tp, tz, "%%a", "%a"); - TestFormatSpecifier(tp, tz, "%%b", "%b"); - TestFormatSpecifier(tp, tz, "%%Ea", "%Ea"); - TestFormatSpecifier(tp, tz, "%%Es", "%Es"); - TestFormatSpecifier(tp, tz, "%%E3S", "%E3S"); - TestFormatSpecifier(tp, tz, "%%OS", "%OS"); - TestFormatSpecifier(tp, tz, "%%O3S", "%O3S"); - - // Multiple levels of escaping. - TestFormatSpecifier(tp, tz, "%%%Y", "%1970"); - TestFormatSpecifier(tp, tz, "%%%E3S", "%00.000"); - TestFormatSpecifier(tp, tz, "%%%%E3S", "%%E3S"); -} - -TEST(Format, ExtendedSeconds) { - const time_zone tz = utc_time_zone(); - - // No subseconds. - time_point<chrono::nanoseconds> tp = chrono::system_clock::from_time_t(0); - tp += chrono::seconds(5); - EXPECT_EQ("05", format("%E*S", tp, tz)); - EXPECT_EQ("05", format("%E0S", tp, tz)); - EXPECT_EQ("05.0", format("%E1S", tp, tz)); - EXPECT_EQ("05.00", format("%E2S", tp, tz)); - EXPECT_EQ("05.000", format("%E3S", tp, tz)); - EXPECT_EQ("05.0000", format("%E4S", tp, tz)); - EXPECT_EQ("05.00000", format("%E5S", tp, tz)); - EXPECT_EQ("05.000000", format("%E6S", tp, tz)); - EXPECT_EQ("05.0000000", format("%E7S", tp, tz)); - EXPECT_EQ("05.00000000", format("%E8S", tp, tz)); - EXPECT_EQ("05.000000000", format("%E9S", tp, tz)); - EXPECT_EQ("05.0000000000", format("%E10S", tp, tz)); - EXPECT_EQ("05.00000000000", format("%E11S", tp, tz)); - EXPECT_EQ("05.000000000000", format("%E12S", tp, tz)); - EXPECT_EQ("05.0000000000000", format("%E13S", tp, tz)); - EXPECT_EQ("05.00000000000000", format("%E14S", tp, tz)); - EXPECT_EQ("05.000000000000000", format("%E15S", tp, tz)); - - // With subseconds. - tp += chrono::milliseconds(6) + chrono::microseconds(7) + - chrono::nanoseconds(8); - EXPECT_EQ("05.006007008", format("%E*S", tp, tz)); - EXPECT_EQ("05", format("%E0S", tp, tz)); - EXPECT_EQ("05.0", format("%E1S", tp, tz)); - EXPECT_EQ("05.00", format("%E2S", tp, tz)); - EXPECT_EQ("05.006", format("%E3S", tp, tz)); - EXPECT_EQ("05.0060", format("%E4S", tp, tz)); - EXPECT_EQ("05.00600", format("%E5S", tp, tz)); - EXPECT_EQ("05.006007", format("%E6S", tp, tz)); - EXPECT_EQ("05.0060070", format("%E7S", tp, tz)); - EXPECT_EQ("05.00600700", format("%E8S", tp, tz)); - EXPECT_EQ("05.006007008", format("%E9S", tp, tz)); - EXPECT_EQ("05.0060070080", format("%E10S", tp, tz)); - EXPECT_EQ("05.00600700800", format("%E11S", tp, tz)); - EXPECT_EQ("05.006007008000", format("%E12S", tp, tz)); - EXPECT_EQ("05.0060070080000", format("%E13S", tp, tz)); - EXPECT_EQ("05.00600700800000", format("%E14S", tp, tz)); - EXPECT_EQ("05.006007008000000", format("%E15S", tp, tz)); - - // Times before the Unix epoch. - tp = chrono::system_clock::from_time_t(0) + chrono::microseconds(-1); - EXPECT_EQ("1969-12-31 23:59:59.999999", - format("%Y-%m-%d %H:%M:%E*S", tp, tz)); - - // Here is a "%E*S" case we got wrong for a while. While the first - // instant below is correctly rendered as "...:07.333304", the second - // one used to appear as "...:07.33330499999999999". - tp = chrono::system_clock::from_time_t(0) + - chrono::microseconds(1395024427333304); - EXPECT_EQ("2014-03-17 02:47:07.333304", - format("%Y-%m-%d %H:%M:%E*S", tp, tz)); - tp += chrono::microseconds(1); - EXPECT_EQ("2014-03-17 02:47:07.333305", - format("%Y-%m-%d %H:%M:%E*S", tp, tz)); -} - -TEST(Format, ExtendedSubeconds) { - const time_zone tz = utc_time_zone(); - - // No subseconds. - time_point<chrono::nanoseconds> tp = chrono::system_clock::from_time_t(0); - tp += chrono::seconds(5); - EXPECT_EQ("0", format("%E*f", tp, tz)); - EXPECT_EQ("", format("%E0f", tp, tz)); - EXPECT_EQ("0", format("%E1f", tp, tz)); - EXPECT_EQ("00", format("%E2f", tp, tz)); - EXPECT_EQ("000", format("%E3f", tp, tz)); - EXPECT_EQ("0000", format("%E4f", tp, tz)); - EXPECT_EQ("00000", format("%E5f", tp, tz)); - EXPECT_EQ("000000", format("%E6f", tp, tz)); - EXPECT_EQ("0000000", format("%E7f", tp, tz)); - EXPECT_EQ("00000000", format("%E8f", tp, tz)); - EXPECT_EQ("000000000", format("%E9f", tp, tz)); - EXPECT_EQ("0000000000", format("%E10f", tp, tz)); - EXPECT_EQ("00000000000", format("%E11f", tp, tz)); - EXPECT_EQ("000000000000", format("%E12f", tp, tz)); - EXPECT_EQ("0000000000000", format("%E13f", tp, tz)); - EXPECT_EQ("00000000000000", format("%E14f", tp, tz)); - EXPECT_EQ("000000000000000", format("%E15f", tp, tz)); - - // With subseconds. - tp += chrono::milliseconds(6) + chrono::microseconds(7) + - chrono::nanoseconds(8); - EXPECT_EQ("006007008", format("%E*f", tp, tz)); - EXPECT_EQ("", format("%E0f", tp, tz)); - EXPECT_EQ("0", format("%E1f", tp, tz)); - EXPECT_EQ("00", format("%E2f", tp, tz)); - EXPECT_EQ("006", format("%E3f", tp, tz)); - EXPECT_EQ("0060", format("%E4f", tp, tz)); - EXPECT_EQ("00600", format("%E5f", tp, tz)); - EXPECT_EQ("006007", format("%E6f", tp, tz)); - EXPECT_EQ("0060070", format("%E7f", tp, tz)); - EXPECT_EQ("00600700", format("%E8f", tp, tz)); - EXPECT_EQ("006007008", format("%E9f", tp, tz)); - EXPECT_EQ("0060070080", format("%E10f", tp, tz)); - EXPECT_EQ("00600700800", format("%E11f", tp, tz)); - EXPECT_EQ("006007008000", format("%E12f", tp, tz)); - EXPECT_EQ("0060070080000", format("%E13f", tp, tz)); - EXPECT_EQ("00600700800000", format("%E14f", tp, tz)); - EXPECT_EQ("006007008000000", format("%E15f", tp, tz)); - - // Times before the Unix epoch. - tp = chrono::system_clock::from_time_t(0) + chrono::microseconds(-1); - EXPECT_EQ("1969-12-31 23:59:59.999999", - format("%Y-%m-%d %H:%M:%S.%E*f", tp, tz)); - - // Here is a "%E*S" case we got wrong for a while. While the first - // instant below is correctly rendered as "...:07.333304", the second - // one used to appear as "...:07.33330499999999999". - tp = chrono::system_clock::from_time_t(0) + - chrono::microseconds(1395024427333304); - EXPECT_EQ("2014-03-17 02:47:07.333304", - format("%Y-%m-%d %H:%M:%S.%E*f", tp, tz)); - tp += chrono::microseconds(1); - EXPECT_EQ("2014-03-17 02:47:07.333305", - format("%Y-%m-%d %H:%M:%S.%E*f", tp, tz)); -} - -TEST(Format, CompareExtendSecondsVsSubseconds) { - const time_zone tz = utc_time_zone(); - - // This test case illustrates the differences/similarities between: - // fmt_A: %E<prec>S - // fmt_B: %S.%E<prec>f - auto fmt_A = [](const std::string& prec) { return "%E" + prec + "S"; }; - auto fmt_B = [](const std::string& prec) { return "%S.%E" + prec + "f"; }; - - // No subseconds: - time_point<chrono::nanoseconds> tp = chrono::system_clock::from_time_t(0); - tp += chrono::seconds(5); - // ... %E*S and %S.%E*f are different. - EXPECT_EQ("05", format(fmt_A("*"), tp, tz)); - EXPECT_EQ("05.0", format(fmt_B("*"), tp, tz)); - // ... %E0S and %S.%E0f are different. - EXPECT_EQ("05", format(fmt_A("0"), tp, tz)); - EXPECT_EQ("05.", format(fmt_B("0"), tp, tz)); - // ... %E<prec>S and %S.%E<prec>f are the same for prec in [1:15]. - for (int prec = 1; prec <= 15; ++prec) { - const std::string a = format(fmt_A(std::to_string(prec)), tp, tz); - const std::string b = format(fmt_B(std::to_string(prec)), tp, tz); - EXPECT_EQ(a, b) << "prec=" << prec; - } - - // With subseconds: - // ... %E*S and %S.%E*f are the same. - tp += chrono::milliseconds(6) + chrono::microseconds(7) + - chrono::nanoseconds(8); - EXPECT_EQ("05.006007008", format(fmt_A("*"), tp, tz)); - EXPECT_EQ("05.006007008", format(fmt_B("*"), tp, tz)); - // ... %E0S and %S.%E0f are different. - EXPECT_EQ("05", format(fmt_A("0"), tp, tz)); - EXPECT_EQ("05.", format(fmt_B("0"), tp, tz)); - // ... %E<prec>S and %S.%E<prec>f are the same for prec in [1:15]. - for (int prec = 1; prec <= 15; ++prec) { - const std::string a = format(fmt_A(std::to_string(prec)), tp, tz); - const std::string b = format(fmt_B(std::to_string(prec)), tp, tz); - EXPECT_EQ(a, b) << "prec=" << prec; - } -} - -TEST(Format, ExtendedOffset) { - const auto tp = chrono::system_clock::from_time_t(0); - - auto tz = fixed_time_zone(absl::time_internal::cctz::seconds::zero()); - TestFormatSpecifier(tp, tz, "%z", "+0000"); - TestFormatSpecifier(tp, tz, "%:z", "+00:00"); - TestFormatSpecifier(tp, tz, "%Ez", "+00:00"); - - tz = fixed_time_zone(chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%z", "+0000"); - TestFormatSpecifier(tp, tz, "%:z", "+00:00"); - TestFormatSpecifier(tp, tz, "%Ez", "+00:00"); - - tz = fixed_time_zone(-chrono::seconds(56)); // NOTE: +00:00 - TestFormatSpecifier(tp, tz, "%z", "+0000"); - TestFormatSpecifier(tp, tz, "%:z", "+00:00"); - TestFormatSpecifier(tp, tz, "%Ez", "+00:00"); - - tz = fixed_time_zone(chrono::minutes(34)); - TestFormatSpecifier(tp, tz, "%z", "+0034"); - TestFormatSpecifier(tp, tz, "%:z", "+00:34"); - TestFormatSpecifier(tp, tz, "%Ez", "+00:34"); - - tz = fixed_time_zone(-chrono::minutes(34)); - TestFormatSpecifier(tp, tz, "%z", "-0034"); - TestFormatSpecifier(tp, tz, "%:z", "-00:34"); - TestFormatSpecifier(tp, tz, "%Ez", "-00:34"); - - tz = fixed_time_zone(chrono::minutes(34) + chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%z", "+0034"); - TestFormatSpecifier(tp, tz, "%:z", "+00:34"); - TestFormatSpecifier(tp, tz, "%Ez", "+00:34"); - - tz = fixed_time_zone(-chrono::minutes(34) - chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%z", "-0034"); - TestFormatSpecifier(tp, tz, "%:z", "-00:34"); - TestFormatSpecifier(tp, tz, "%Ez", "-00:34"); - - tz = fixed_time_zone(chrono::hours(12)); - TestFormatSpecifier(tp, tz, "%z", "+1200"); - TestFormatSpecifier(tp, tz, "%:z", "+12:00"); - TestFormatSpecifier(tp, tz, "%Ez", "+12:00"); - - tz = fixed_time_zone(-chrono::hours(12)); - TestFormatSpecifier(tp, tz, "%z", "-1200"); - TestFormatSpecifier(tp, tz, "%:z", "-12:00"); - TestFormatSpecifier(tp, tz, "%Ez", "-12:00"); - - tz = fixed_time_zone(chrono::hours(12) + chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%z", "+1200"); - TestFormatSpecifier(tp, tz, "%:z", "+12:00"); - TestFormatSpecifier(tp, tz, "%Ez", "+12:00"); - - tz = fixed_time_zone(-chrono::hours(12) - chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%z", "-1200"); - TestFormatSpecifier(tp, tz, "%:z", "-12:00"); - TestFormatSpecifier(tp, tz, "%Ez", "-12:00"); - - tz = fixed_time_zone(chrono::hours(12) + chrono::minutes(34)); - TestFormatSpecifier(tp, tz, "%z", "+1234"); - TestFormatSpecifier(tp, tz, "%:z", "+12:34"); - TestFormatSpecifier(tp, tz, "%Ez", "+12:34"); - - tz = fixed_time_zone(-chrono::hours(12) - chrono::minutes(34)); - TestFormatSpecifier(tp, tz, "%z", "-1234"); - TestFormatSpecifier(tp, tz, "%:z", "-12:34"); - TestFormatSpecifier(tp, tz, "%Ez", "-12:34"); - - tz = fixed_time_zone(chrono::hours(12) + chrono::minutes(34) + - chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%z", "+1234"); - TestFormatSpecifier(tp, tz, "%:z", "+12:34"); - TestFormatSpecifier(tp, tz, "%Ez", "+12:34"); - - tz = fixed_time_zone(-chrono::hours(12) - chrono::minutes(34) - - chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%z", "-1234"); - TestFormatSpecifier(tp, tz, "%:z", "-12:34"); - TestFormatSpecifier(tp, tz, "%Ez", "-12:34"); -} - -TEST(Format, ExtendedSecondOffset) { - const auto tp = chrono::system_clock::from_time_t(0); - - auto tz = fixed_time_zone(absl::time_internal::cctz::seconds::zero()); - TestFormatSpecifier(tp, tz, "%E*z", "+00:00:00"); - TestFormatSpecifier(tp, tz, "%::z", "+00:00:00"); - TestFormatSpecifier(tp, tz, "%:::z", "+00"); - - tz = fixed_time_zone(chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%E*z", "+00:00:56"); - TestFormatSpecifier(tp, tz, "%::z", "+00:00:56"); - TestFormatSpecifier(tp, tz, "%:::z", "+00:00:56"); - - tz = fixed_time_zone(-chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%E*z", "-00:00:56"); - TestFormatSpecifier(tp, tz, "%::z", "-00:00:56"); - TestFormatSpecifier(tp, tz, "%:::z", "-00:00:56"); - - tz = fixed_time_zone(chrono::minutes(34)); - TestFormatSpecifier(tp, tz, "%E*z", "+00:34:00"); - TestFormatSpecifier(tp, tz, "%::z", "+00:34:00"); - TestFormatSpecifier(tp, tz, "%:::z", "+00:34"); - - tz = fixed_time_zone(-chrono::minutes(34)); - TestFormatSpecifier(tp, tz, "%E*z", "-00:34:00"); - TestFormatSpecifier(tp, tz, "%::z", "-00:34:00"); - TestFormatSpecifier(tp, tz, "%:::z", "-00:34"); - - tz = fixed_time_zone(chrono::minutes(34) + chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%E*z", "+00:34:56"); - TestFormatSpecifier(tp, tz, "%::z", "+00:34:56"); - TestFormatSpecifier(tp, tz, "%:::z", "+00:34:56"); - - tz = fixed_time_zone(-chrono::minutes(34) - chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%E*z", "-00:34:56"); - TestFormatSpecifier(tp, tz, "%::z", "-00:34:56"); - TestFormatSpecifier(tp, tz, "%:::z", "-00:34:56"); - - tz = fixed_time_zone(chrono::hours(12)); - TestFormatSpecifier(tp, tz, "%E*z", "+12:00:00"); - TestFormatSpecifier(tp, tz, "%::z", "+12:00:00"); - TestFormatSpecifier(tp, tz, "%:::z", "+12"); - - tz = fixed_time_zone(-chrono::hours(12)); - TestFormatSpecifier(tp, tz, "%E*z", "-12:00:00"); - TestFormatSpecifier(tp, tz, "%::z", "-12:00:00"); - TestFormatSpecifier(tp, tz, "%:::z", "-12"); - - tz = fixed_time_zone(chrono::hours(12) + chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%E*z", "+12:00:56"); - TestFormatSpecifier(tp, tz, "%::z", "+12:00:56"); - TestFormatSpecifier(tp, tz, "%:::z", "+12:00:56"); - - tz = fixed_time_zone(-chrono::hours(12) - chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%E*z", "-12:00:56"); - TestFormatSpecifier(tp, tz, "%::z", "-12:00:56"); - TestFormatSpecifier(tp, tz, "%:::z", "-12:00:56"); - - tz = fixed_time_zone(chrono::hours(12) + chrono::minutes(34)); - TestFormatSpecifier(tp, tz, "%E*z", "+12:34:00"); - TestFormatSpecifier(tp, tz, "%::z", "+12:34:00"); - TestFormatSpecifier(tp, tz, "%:::z", "+12:34"); - - tz = fixed_time_zone(-chrono::hours(12) - chrono::minutes(34)); - TestFormatSpecifier(tp, tz, "%E*z", "-12:34:00"); - TestFormatSpecifier(tp, tz, "%::z", "-12:34:00"); - TestFormatSpecifier(tp, tz, "%:::z", "-12:34"); - - tz = fixed_time_zone(chrono::hours(12) + chrono::minutes(34) + - chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%E*z", "+12:34:56"); - TestFormatSpecifier(tp, tz, "%::z", "+12:34:56"); - TestFormatSpecifier(tp, tz, "%:::z", "+12:34:56"); - - tz = fixed_time_zone(-chrono::hours(12) - chrono::minutes(34) - - chrono::seconds(56)); - TestFormatSpecifier(tp, tz, "%E*z", "-12:34:56"); - TestFormatSpecifier(tp, tz, "%::z", "-12:34:56"); - TestFormatSpecifier(tp, tz, "%:::z", "-12:34:56"); -} - -TEST(Format, ExtendedYears) { - const time_zone utc = utc_time_zone(); - const char e4y_fmt[] = "%E4Y%m%d"; // no separators - - // %E4Y zero-pads the year to produce at least 4 chars, including the sign. - auto tp = convert(civil_second(-999, 11, 27, 0, 0, 0), utc); - EXPECT_EQ("-9991127", format(e4y_fmt, tp, utc)); - tp = convert(civil_second(-99, 11, 27, 0, 0, 0), utc); - EXPECT_EQ("-0991127", format(e4y_fmt, tp, utc)); - tp = convert(civil_second(-9, 11, 27, 0, 0, 0), utc); - EXPECT_EQ("-0091127", format(e4y_fmt, tp, utc)); - tp = convert(civil_second(-1, 11, 27, 0, 0, 0), utc); - EXPECT_EQ("-0011127", format(e4y_fmt, tp, utc)); - tp = convert(civil_second(0, 11, 27, 0, 0, 0), utc); - EXPECT_EQ("00001127", format(e4y_fmt, tp, utc)); - tp = convert(civil_second(1, 11, 27, 0, 0, 0), utc); - EXPECT_EQ("00011127", format(e4y_fmt, tp, utc)); - tp = convert(civil_second(9, 11, 27, 0, 0, 0), utc); - EXPECT_EQ("00091127", format(e4y_fmt, tp, utc)); - tp = convert(civil_second(99, 11, 27, 0, 0, 0), utc); - EXPECT_EQ("00991127", format(e4y_fmt, tp, utc)); - tp = convert(civil_second(999, 11, 27, 0, 0, 0), utc); - EXPECT_EQ("09991127", format(e4y_fmt, tp, utc)); - tp = convert(civil_second(9999, 11, 27, 0, 0, 0), utc); - EXPECT_EQ("99991127", format(e4y_fmt, tp, utc)); - - // When the year is outside [-999:9999], more than 4 chars are produced. - tp = convert(civil_second(-1000, 11, 27, 0, 0, 0), utc); - EXPECT_EQ("-10001127", format(e4y_fmt, tp, utc)); - tp = convert(civil_second(10000, 11, 27, 0, 0, 0), utc); - EXPECT_EQ("100001127", format(e4y_fmt, tp, utc)); -} - -TEST(Format, RFC3339Format) { - time_zone tz; - EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz)); - - time_point<chrono::nanoseconds> tp = - convert(civil_second(1977, 6, 28, 9, 8, 7), tz); - EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_full, tp, tz)); - EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz)); - - tp += chrono::milliseconds(100); - EXPECT_EQ("1977-06-28T09:08:07.1-07:00", format(RFC3339_full, tp, tz)); - EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz)); - - tp += chrono::milliseconds(20); - EXPECT_EQ("1977-06-28T09:08:07.12-07:00", format(RFC3339_full, tp, tz)); - EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz)); - - tp += chrono::milliseconds(3); - EXPECT_EQ("1977-06-28T09:08:07.123-07:00", format(RFC3339_full, tp, tz)); - EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz)); - - tp += chrono::microseconds(400); - EXPECT_EQ("1977-06-28T09:08:07.1234-07:00", format(RFC3339_full, tp, tz)); - EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz)); - - tp += chrono::microseconds(50); - EXPECT_EQ("1977-06-28T09:08:07.12345-07:00", format(RFC3339_full, tp, tz)); - EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz)); - - tp += chrono::microseconds(6); - EXPECT_EQ("1977-06-28T09:08:07.123456-07:00", format(RFC3339_full, tp, tz)); - EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz)); - - tp += chrono::nanoseconds(700); - EXPECT_EQ("1977-06-28T09:08:07.1234567-07:00", format(RFC3339_full, tp, tz)); - EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz)); - - tp += chrono::nanoseconds(80); - EXPECT_EQ("1977-06-28T09:08:07.12345678-07:00", format(RFC3339_full, tp, tz)); - EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz)); - - tp += chrono::nanoseconds(9); - EXPECT_EQ("1977-06-28T09:08:07.123456789-07:00", - format(RFC3339_full, tp, tz)); - EXPECT_EQ("1977-06-28T09:08:07-07:00", format(RFC3339_sec, tp, tz)); -} - -TEST(Format, RFC1123Format) { // locale specific - time_zone tz; - EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz)); - - auto tp = convert(civil_second(1977, 6, 28, 9, 8, 7), tz); - EXPECT_EQ("Tue, 28 Jun 1977 09:08:07 -0700", format(RFC1123_full, tp, tz)); - EXPECT_EQ("28 Jun 1977 09:08:07 -0700", format(RFC1123_no_wday, tp, tz)); -} - -TEST(Format, Week) { - const time_zone utc = utc_time_zone(); - - auto tp = convert(civil_second(2017, 1, 1, 0, 0, 0), utc); - EXPECT_EQ("2017-01-7", format("%Y-%U-%u", tp, utc)); - EXPECT_EQ("2017-00-0", format("%Y-%W-%w", tp, utc)); - - tp = convert(civil_second(2017, 12, 31, 0, 0, 0), utc); - EXPECT_EQ("2017-53-7", format("%Y-%U-%u", tp, utc)); - EXPECT_EQ("2017-52-0", format("%Y-%W-%w", tp, utc)); - - tp = convert(civil_second(2018, 1, 1, 0, 0, 0), utc); - EXPECT_EQ("2018-00-1", format("%Y-%U-%u", tp, utc)); - EXPECT_EQ("2018-01-1", format("%Y-%W-%w", tp, utc)); - - tp = convert(civil_second(2018, 12, 31, 0, 0, 0), utc); - EXPECT_EQ("2018-52-1", format("%Y-%U-%u", tp, utc)); - EXPECT_EQ("2018-53-1", format("%Y-%W-%w", tp, utc)); - - tp = convert(civil_second(2019, 1, 1, 0, 0, 0), utc); - EXPECT_EQ("2019-00-2", format("%Y-%U-%u", tp, utc)); - EXPECT_EQ("2019-00-2", format("%Y-%W-%w", tp, utc)); - - tp = convert(civil_second(2019, 12, 31, 0, 0, 0), utc); - EXPECT_EQ("2019-52-2", format("%Y-%U-%u", tp, utc)); - EXPECT_EQ("2019-52-2", format("%Y-%W-%w", tp, utc)); -} - -// -// Testing parse() -// - -TEST(Parse, TimePointResolution) { - const char kFmt[] = "%H:%M:%E*S"; - const time_zone utc = utc_time_zone(); - - time_point<chrono::nanoseconds> tp_ns; - EXPECT_TRUE(parse(kFmt, "03:04:05.123456789", utc, &tp_ns)); - EXPECT_EQ("03:04:05.123456789", format(kFmt, tp_ns, utc)); - EXPECT_TRUE(parse(kFmt, "03:04:05.123456", utc, &tp_ns)); - EXPECT_EQ("03:04:05.123456", format(kFmt, tp_ns, utc)); - - time_point<chrono::microseconds> tp_us; - EXPECT_TRUE(parse(kFmt, "03:04:05.123456789", utc, &tp_us)); - EXPECT_EQ("03:04:05.123456", format(kFmt, tp_us, utc)); - EXPECT_TRUE(parse(kFmt, "03:04:05.123456", utc, &tp_us)); - EXPECT_EQ("03:04:05.123456", format(kFmt, tp_us, utc)); - EXPECT_TRUE(parse(kFmt, "03:04:05.123", utc, &tp_us)); - EXPECT_EQ("03:04:05.123", format(kFmt, tp_us, utc)); - - time_point<chrono::milliseconds> tp_ms; - EXPECT_TRUE(parse(kFmt, "03:04:05.123456", utc, &tp_ms)); - EXPECT_EQ("03:04:05.123", format(kFmt, tp_ms, utc)); - EXPECT_TRUE(parse(kFmt, "03:04:05.123", utc, &tp_ms)); - EXPECT_EQ("03:04:05.123", format(kFmt, tp_ms, utc)); - EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_ms)); - EXPECT_EQ("03:04:05", format(kFmt, tp_ms, utc)); - - time_point<chrono::seconds> tp_s; - EXPECT_TRUE(parse(kFmt, "03:04:05.123", utc, &tp_s)); - EXPECT_EQ("03:04:05", format(kFmt, tp_s, utc)); - EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_s)); - EXPECT_EQ("03:04:05", format(kFmt, tp_s, utc)); - - time_point<chrono::minutes> tp_m; - EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_m)); - EXPECT_EQ("03:04:00", format(kFmt, tp_m, utc)); - - time_point<chrono::hours> tp_h; - EXPECT_TRUE(parse(kFmt, "03:04:05", utc, &tp_h)); - EXPECT_EQ("03:00:00", format(kFmt, tp_h, utc)); -} - -TEST(Parse, TimePointExtendedResolution) { - const char kFmt[] = "%H:%M:%E*S"; - const time_zone utc = utc_time_zone(); - - time_point<absl::time_internal::cctz::seconds> tp; - detail::femtoseconds fs; - EXPECT_TRUE(detail::parse(kFmt, "12:34:56.123456789012345", utc, &tp, &fs)); - EXPECT_EQ("12:34:56.123456789012345", detail::format(kFmt, tp, fs, utc)); - EXPECT_TRUE(detail::parse(kFmt, "12:34:56.012345678901234", utc, &tp, &fs)); - EXPECT_EQ("12:34:56.012345678901234", detail::format(kFmt, tp, fs, utc)); - EXPECT_TRUE(detail::parse(kFmt, "12:34:56.001234567890123", utc, &tp, &fs)); - EXPECT_EQ("12:34:56.001234567890123", detail::format(kFmt, tp, fs, utc)); - EXPECT_TRUE(detail::parse(kFmt, "12:34:56.000000000000123", utc, &tp, &fs)); - EXPECT_EQ("12:34:56.000000000000123", detail::format(kFmt, tp, fs, utc)); - EXPECT_TRUE(detail::parse(kFmt, "12:34:56.000000000000012", utc, &tp, &fs)); - EXPECT_EQ("12:34:56.000000000000012", detail::format(kFmt, tp, fs, utc)); - EXPECT_TRUE(detail::parse(kFmt, "12:34:56.000000000000001", utc, &tp, &fs)); - EXPECT_EQ("12:34:56.000000000000001", detail::format(kFmt, tp, fs, utc)); -} - -TEST(Parse, Basics) { - time_zone tz = utc_time_zone(); - time_point<chrono::nanoseconds> tp = - chrono::system_clock::from_time_t(1234567890); - - // Simple edge cases. - EXPECT_TRUE(parse("", "", tz, &tp)); - EXPECT_EQ(chrono::system_clock::from_time_t(0), tp); // everything defaulted - EXPECT_TRUE(parse(" ", " ", tz, &tp)); - EXPECT_TRUE(parse(" ", " ", tz, &tp)); - EXPECT_TRUE(parse("x", "x", tz, &tp)); - EXPECT_TRUE(parse("xxx", "xxx", tz, &tp)); - - EXPECT_TRUE( - parse("%Y-%m-%d %H:%M:%S %z", "2013-06-28 19:08:09 -0800", tz, &tp)); - ExpectTime(tp, tz, 2013, 6, 29, 3, 8, 9, 0, false, "UTC"); -} - -TEST(Parse, WithTimeZone) { - time_zone tz; - EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz)); - time_point<chrono::nanoseconds> tp; - - // We can parse a string without a UTC offset if we supply a timezone. - EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S", "2013-06-28 19:08:09", tz, &tp)); - ExpectTime(tp, tz, 2013, 6, 28, 19, 8, 9, -7 * 60 * 60, true, "PDT"); - - // But the timezone is ignored when a UTC offset is present. - EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S %z", "2013-06-28 19:08:09 +0800", - utc_time_zone(), &tp)); - ExpectTime(tp, tz, 2013, 6, 28, 19 - 8 - 7, 8, 9, -7 * 60 * 60, true, "PDT"); - - // Check a skipped time (a Spring DST transition). parse() uses the - // pre-transition offset. - EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S", "2011-03-13 02:15:00", tz, &tp)); - ExpectTime(tp, tz, 2011, 3, 13, 3, 15, 0, -7 * 60 * 60, true, "PDT"); - - // Check a repeated time (a Fall DST transition). parse() uses the - // pre-transition offset. - EXPECT_TRUE(parse("%Y-%m-%d %H:%M:%S", "2011-11-06 01:15:00", tz, &tp)); - ExpectTime(tp, tz, 2011, 11, 6, 1, 15, 0, -7 * 60 * 60, true, "PDT"); -} - -TEST(Parse, LeapSecond) { - time_zone tz; - EXPECT_TRUE(load_time_zone("America/Los_Angeles", &tz)); - time_point<chrono::nanoseconds> tp; - - // ":59" -> ":59" - EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:59-08:00", tz, &tp)); - ExpectTime(tp, tz, 2013, 6, 28, 8, 8, 59, -7 * 60 * 60, true, "PDT"); - - // ":59.5" -> ":59.5" - EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:59.5-08:00", tz, &tp)); - ExpectTime(tp, tz, 2013, 6, 28, 8, 8, 59, -7 * 60 * 60, true, "PDT"); - - // ":60" -> ":00" - EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:60-08:00", tz, &tp)); - ExpectTime(tp, tz, 2013, 6, 28, 8, 9, 0, -7 * 60 * 60, true, "PDT"); - - // ":60.5" -> ":00.0" - EXPECT_TRUE(parse(RFC3339_full, "2013-06-28T07:08:60.5-08:00", tz, &tp)); - ExpectTime(tp, tz, 2013, 6, 28, 8, 9, 0, -7 * 60 * 60, true, "PDT"); - - // ":61" -> error - EXPECT_FALSE(parse(RFC3339_full, "2013-06-28T07:08:61-08:00", tz, &tp)); -} - -TEST(Parse, ErrorCases) { - const time_zone tz = utc_time_zone(); - auto tp = chrono::system_clock::from_time_t(0); - - // Illegal trailing data. - EXPECT_FALSE(parse("%S", "123", tz, &tp)); - - // Can't parse an illegal format specifier. - EXPECT_FALSE(parse("%Q", "x", tz, &tp)); - - // Fails because of trailing, unparsed data "blah". - EXPECT_FALSE(parse("%m-%d", "2-3 blah", tz, &tp)); - - // Trailing whitespace is allowed. - EXPECT_TRUE(parse("%m-%d", "2-3 ", tz, &tp)); - EXPECT_EQ(2, convert(tp, utc_time_zone()).month()); - EXPECT_EQ(3, convert(tp, utc_time_zone()).day()); - - // Feb 31 requires normalization. - EXPECT_FALSE(parse("%m-%d", "2-31", tz, &tp)); - - // Check that we cannot have spaces in UTC offsets. - EXPECT_TRUE(parse("%z", "-0203", tz, &tp)); - EXPECT_FALSE(parse("%z", "- 2 3", tz, &tp)); - EXPECT_TRUE(parse("%Ez", "-02:03", tz, &tp)); - EXPECT_FALSE(parse("%Ez", "- 2: 3", tz, &tp)); - - // Check that we reject other malformed UTC offsets. - EXPECT_FALSE(parse("%Ez", "+-08:00", tz, &tp)); - EXPECT_FALSE(parse("%Ez", "-+08:00", tz, &tp)); - - // Check that we do not accept "-0" in fields that allow zero. - EXPECT_FALSE(parse("%Y", "-0", tz, &tp)); - EXPECT_FALSE(parse("%E4Y", "-0", tz, &tp)); - EXPECT_FALSE(parse("%H", "-0", tz, &tp)); - EXPECT_FALSE(parse("%M", "-0", tz, &tp)); - EXPECT_FALSE(parse("%S", "-0", tz, &tp)); - EXPECT_FALSE(parse("%z", "+-000", tz, &tp)); - EXPECT_FALSE(parse("%Ez", "+-0:00", tz, &tp)); - EXPECT_FALSE(parse("%z", "-00-0", tz, &tp)); - EXPECT_FALSE(parse("%Ez", "-00:-0", tz, &tp)); -} - -TEST(Parse, PosixConversions) { - time_zone tz = utc_time_zone(); - auto tp = chrono::system_clock::from_time_t(0); - const auto reset = convert(civil_second(1977, 6, 28, 9, 8, 7), tz); - - tp = reset; - EXPECT_TRUE(parse("%d", "15", tz, &tp)); - EXPECT_EQ(15, convert(tp, tz).day()); - - // %e is an extension, but is supported internally. - tp = reset; - EXPECT_TRUE(parse("%e", "15", tz, &tp)); - EXPECT_EQ(15, convert(tp, tz).day()); // Equivalent to %d - - tp = reset; - EXPECT_TRUE(parse("%H", "17", tz, &tp)); - EXPECT_EQ(17, convert(tp, tz).hour()); - - tp = reset; - EXPECT_TRUE(parse("%I", "5", tz, &tp)); - EXPECT_EQ(5, convert(tp, tz).hour()); - - // %j is parsed but ignored. - EXPECT_TRUE(parse("%j", "32", tz, &tp)); - - tp = reset; - EXPECT_TRUE(parse("%m", "11", tz, &tp)); - EXPECT_EQ(11, convert(tp, tz).month()); - - tp = reset; - EXPECT_TRUE(parse("%M", "33", tz, &tp)); - EXPECT_EQ(33, convert(tp, tz).minute()); - - tp = reset; - EXPECT_TRUE(parse("%S", "55", tz, &tp)); - EXPECT_EQ(55, convert(tp, tz).second()); - - // %U is parsed but ignored. - EXPECT_TRUE(parse("%U", "15", tz, &tp)); - - // %w is parsed but ignored. - EXPECT_TRUE(parse("%w", "2", tz, &tp)); - - // %W is parsed but ignored. - EXPECT_TRUE(parse("%W", "22", tz, &tp)); - - tp = reset; - EXPECT_TRUE(parse("%y", "04", tz, &tp)); - EXPECT_EQ(2004, convert(tp, tz).year()); - - tp = reset; - EXPECT_TRUE(parse("%Y", "2004", tz, &tp)); - EXPECT_EQ(2004, convert(tp, tz).year()); - - EXPECT_TRUE(parse("%%", "%", tz, &tp)); - -#if defined(__linux__) - // SU/C99/TZ extensions - - // Because we handle each (non-internal) specifier in a separate call - // to strptime(), there is no way to group %C and %y together. So we - // just skip the %C/%y case. -#if 0 - tp = reset; - EXPECT_TRUE(parse("%C %y", "20 04", tz, &tp)); - EXPECT_EQ(2004, convert(tp, tz).year()); -#endif - - tp = reset; - EXPECT_TRUE(parse("%D", "02/03/04", tz, &tp)); - EXPECT_EQ(2, convert(tp, tz).month()); - EXPECT_EQ(3, convert(tp, tz).day()); - EXPECT_EQ(2004, convert(tp, tz).year()); - - EXPECT_TRUE(parse("%n", "\n", tz, &tp)); - - tp = reset; - EXPECT_TRUE(parse("%R", "03:44", tz, &tp)); - EXPECT_EQ(3, convert(tp, tz).hour()); - EXPECT_EQ(44, convert(tp, tz).minute()); - - EXPECT_TRUE(parse("%t", "\t\v\f\n\r ", tz, &tp)); - - tp = reset; - EXPECT_TRUE(parse("%T", "03:44:55", tz, &tp)); - EXPECT_EQ(3, convert(tp, tz).hour()); - EXPECT_EQ(44, convert(tp, tz).minute()); - EXPECT_EQ(55, convert(tp, tz).second()); - - tp = reset; - EXPECT_TRUE(parse("%s", "1234567890", tz, &tp)); - EXPECT_EQ(chrono::system_clock::from_time_t(1234567890), tp); - - // %s conversion, like %z/%Ez, pays no heed to the optional zone. - time_zone lax; - EXPECT_TRUE(load_time_zone("America/Los_Angeles", &lax)); - tp = reset; - EXPECT_TRUE(parse("%s", "1234567890", lax, &tp)); - EXPECT_EQ(chrono::system_clock::from_time_t(1234567890), tp); - - // This is most important when the time has the same YMDhms - // breakdown in the zone as some other time. For example, ... - // 1414917000 in US/Pacific -> Sun Nov 2 01:30:00 2014 (PDT) - // 1414920600 in US/Pacific -> Sun Nov 2 01:30:00 2014 (PST) - tp = reset; - EXPECT_TRUE(parse("%s", "1414917000", lax, &tp)); - EXPECT_EQ(chrono::system_clock::from_time_t(1414917000), tp); - tp = reset; - EXPECT_TRUE(parse("%s", "1414920600", lax, &tp)); - EXPECT_EQ(chrono::system_clock::from_time_t(1414920600), tp); -#endif -} - -TEST(Parse, LocaleSpecific) { - time_zone tz = utc_time_zone(); - auto tp = chrono::system_clock::from_time_t(0); - const auto reset = convert(civil_second(1977, 6, 28, 9, 8, 7), tz); - - // %a is parsed but ignored. - EXPECT_TRUE(parse("%a", "Mon", tz, &tp)); - - // %A is parsed but ignored. - EXPECT_TRUE(parse("%A", "Monday", tz, &tp)); - - tp = reset; - EXPECT_TRUE(parse("%b", "Feb", tz, &tp)); - EXPECT_EQ(2, convert(tp, tz).month()); - - tp = reset; - EXPECT_TRUE(parse("%B", "February", tz, &tp)); - EXPECT_EQ(2, convert(tp, tz).month()); - - // %p is parsed but ignored if it's alone. But it's used with %I. - EXPECT_TRUE(parse("%p", "AM", tz, &tp)); - tp = reset; - EXPECT_TRUE(parse("%I %p", "5 PM", tz, &tp)); - EXPECT_EQ(17, convert(tp, tz).hour()); - - tp = reset; - EXPECT_TRUE(parse("%x", "02/03/04", tz, &tp)); - if (convert(tp, tz).month() == 2) { - EXPECT_EQ(3, convert(tp, tz).day()); - } else { - EXPECT_EQ(2, convert(tp, tz).day()); - EXPECT_EQ(3, convert(tp, tz).month()); - } - EXPECT_EQ(2004, convert(tp, tz).year()); - - tp = reset; - EXPECT_TRUE(parse("%X", "15:44:55", tz, &tp)); - EXPECT_EQ(15, convert(tp, tz).hour()); - EXPECT_EQ(44, convert(tp, tz).minute()); - EXPECT_EQ(55, convert(tp, tz).second()); - -#if defined(__linux__) - // SU/C99/TZ extensions - - tp = reset; - EXPECT_TRUE(parse("%h", "Feb", tz, &tp)); - EXPECT_EQ(2, convert(tp, tz).month()); // Equivalent to %b - - tp = reset; - EXPECT_TRUE(parse("%l %p", "5 PM", tz, &tp)); - EXPECT_EQ(17, convert(tp, tz).hour()); - - tp = reset; - EXPECT_TRUE(parse("%r", "03:44:55 PM", tz, &tp)); - EXPECT_EQ(15, convert(tp, tz).hour()); - EXPECT_EQ(44, convert(tp, tz).minute()); - EXPECT_EQ(55, convert(tp, tz).second()); - - tp = reset; - EXPECT_TRUE(parse("%Ec", "Tue Nov 19 05:06:07 2013", tz, &tp)); - EXPECT_EQ(convert(civil_second(2013, 11, 19, 5, 6, 7), tz), tp); - - // Modified conversion specifiers %E_ - - tp = reset; - EXPECT_TRUE(parse("%Ex", "02/03/04", tz, &tp)); - EXPECT_EQ(2, convert(tp, tz).month()); - EXPECT_EQ(3, convert(tp, tz).day()); - EXPECT_EQ(2004, convert(tp, tz).year()); - - tp = reset; - EXPECT_TRUE(parse("%EX", "15:44:55", tz, &tp)); - EXPECT_EQ(15, convert(tp, tz).hour()); - EXPECT_EQ(44, convert(tp, tz).minute()); - EXPECT_EQ(55, convert(tp, tz).second()); - - // %Ey, the year offset from %EC, doesn't really make sense alone as there - // is no way to represent it in tm_year (%EC is not simply the century). - // Yet, because we handle each (non-internal) specifier in a separate call - // to strptime(), there is no way to group %EC and %Ey either. So we just - // skip the %EC and %Ey cases. - - tp = reset; - EXPECT_TRUE(parse("%EY", "2004", tz, &tp)); - EXPECT_EQ(2004, convert(tp, tz).year()); - - // Modified conversion specifiers %O_ - - tp = reset; - EXPECT_TRUE(parse("%Od", "15", tz, &tp)); - EXPECT_EQ(15, convert(tp, tz).day()); - - tp = reset; - EXPECT_TRUE(parse("%Oe", "15", tz, &tp)); - EXPECT_EQ(15, convert(tp, tz).day()); // Equivalent to %d - - tp = reset; - EXPECT_TRUE(parse("%OH", "17", tz, &tp)); - EXPECT_EQ(17, convert(tp, tz).hour()); - - tp = reset; - EXPECT_TRUE(parse("%OI", "5", tz, &tp)); - EXPECT_EQ(5, convert(tp, tz).hour()); - - tp = reset; - EXPECT_TRUE(parse("%Om", "11", tz, &tp)); - EXPECT_EQ(11, convert(tp, tz).month()); - - tp = reset; - EXPECT_TRUE(parse("%OM", "33", tz, &tp)); - EXPECT_EQ(33, convert(tp, tz).minute()); - - tp = reset; - EXPECT_TRUE(parse("%OS", "55", tz, &tp)); - EXPECT_EQ(55, convert(tp, tz).second()); - - // %OU is parsed but ignored. - EXPECT_TRUE(parse("%OU", "15", tz, &tp)); - - // %Ow is parsed but ignored. - EXPECT_TRUE(parse("%Ow", "2", tz, &tp)); - - // %OW is parsed but ignored. - EXPECT_TRUE(parse("%OW", "22", tz, &tp)); - - tp = reset; - EXPECT_TRUE(parse("%Oy", "04", tz, &tp)); - EXPECT_EQ(2004, convert(tp, tz).year()); -#endif -} - -TEST(Parse, ExtendedSeconds) { - const time_zone tz = utc_time_zone(); - const time_point<chrono::nanoseconds> unix_epoch = - chrono::system_clock::from_time_t(0); - - // All %E<prec>S cases are treated the same as %E*S on input. - auto precisions = {"*", "0", "1", "2", "3", "4", "5", "6", "7", - "8", "9", "10", "11", "12", "13", "14", "15"}; - for (const std::string& prec : precisions) { - const std::string fmt = "%E" + prec + "S"; - SCOPED_TRACE(fmt); - time_point<chrono::nanoseconds> tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "5", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::seconds(5), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "05", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::seconds(5), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "05.0", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::seconds(5), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "05.00", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::seconds(5), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "05.6", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(600), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "05.60", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(600), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "05.600", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(600), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "05.67", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(670), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "05.670", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(670), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "05.678", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::seconds(5) + chrono::milliseconds(678), tp); - } - - // Here is a "%E*S" case we got wrong for a while. The fractional - // part of the first instant is less than 2^31 and was correctly - // parsed, while the second (and any subsecond field >=2^31) failed. - time_point<chrono::nanoseconds> tp = unix_epoch; - EXPECT_TRUE(parse("%E*S", "0.2147483647", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp); - tp = unix_epoch; - EXPECT_TRUE(parse("%E*S", "0.2147483648", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp); - - // We should also be able to specify long strings of digits far - // beyond the current resolution and have them convert the same way. - tp = unix_epoch; - EXPECT_TRUE(parse( - "%E*S", "0.214748364801234567890123456789012345678901234567890123456789", - tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp); -} - -TEST(Parse, ExtendedSecondsScan) { - const time_zone tz = utc_time_zone(); - time_point<chrono::nanoseconds> tp; - for (int ms = 0; ms < 1000; ms += 111) { - for (int us = 0; us < 1000; us += 27) { - const int micros = ms * 1000 + us; - for (int ns = 0; ns < 1000; ns += 9) { - const auto expected = chrono::system_clock::from_time_t(0) + - chrono::nanoseconds(micros * 1000 + ns); - std::ostringstream oss; - oss << "0." << std::setfill('0') << std::setw(3); - oss << ms << std::setw(3) << us << std::setw(3) << ns; - const std::string input = oss.str(); - EXPECT_TRUE(parse("%E*S", input, tz, &tp)); - EXPECT_EQ(expected, tp) << input; - } - } - } -} - -TEST(Parse, ExtendedSubeconds) { - const time_zone tz = utc_time_zone(); - const time_point<chrono::nanoseconds> unix_epoch = - chrono::system_clock::from_time_t(0); - - // All %E<prec>f cases are treated the same as %E*f on input. - auto precisions = {"*", "0", "1", "2", "3", "4", "5", "6", "7", - "8", "9", "10", "11", "12", "13", "14", "15"}; - for (const std::string& prec : precisions) { - const std::string fmt = "%E" + prec + "f"; - SCOPED_TRACE(fmt); - time_point<chrono::nanoseconds> tp = unix_epoch - chrono::seconds(1); - EXPECT_TRUE(parse(fmt, "", tz, &tp)); - EXPECT_EQ(unix_epoch, tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "6", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::milliseconds(600), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "60", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::milliseconds(600), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "600", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::milliseconds(600), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "67", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::milliseconds(670), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "670", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::milliseconds(670), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "678", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::milliseconds(678), tp); - tp = unix_epoch; - EXPECT_TRUE(parse(fmt, "6789", tz, &tp)); - EXPECT_EQ( - unix_epoch + chrono::milliseconds(678) + chrono::microseconds(900), tp); - } - - // Here is a "%E*f" case we got wrong for a while. The fractional - // part of the first instant is less than 2^31 and was correctly - // parsed, while the second (and any subsecond field >=2^31) failed. - time_point<chrono::nanoseconds> tp = unix_epoch; - EXPECT_TRUE(parse("%E*f", "2147483647", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp); - tp = unix_epoch; - EXPECT_TRUE(parse("%E*f", "2147483648", tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp); - - // We should also be able to specify long strings of digits far - // beyond the current resolution and have them convert the same way. - tp = unix_epoch; - EXPECT_TRUE(parse( - "%E*f", "214748364801234567890123456789012345678901234567890123456789", - tz, &tp)); - EXPECT_EQ(unix_epoch + chrono::nanoseconds(214748364), tp); -} - -TEST(Parse, ExtendedSubecondsScan) { - time_point<chrono::nanoseconds> tp; - const time_zone tz = utc_time_zone(); - for (int ms = 0; ms < 1000; ms += 111) { - for (int us = 0; us < 1000; us += 27) { - const int micros = ms * 1000 + us; - for (int ns = 0; ns < 1000; ns += 9) { - std::ostringstream oss; - oss << std::setfill('0') << std::setw(3) << ms; - oss << std::setw(3) << us << std::setw(3) << ns; - const std::string nanos = oss.str(); - const auto expected = chrono::system_clock::from_time_t(0) + - chrono::nanoseconds(micros * 1000 + ns); - for (int ps = 0; ps < 1000; ps += 250) { - std::ostringstream ps_oss; - oss << std::setfill('0') << std::setw(3) << ps; - const std::string input = nanos + ps_oss.str() + "999"; - EXPECT_TRUE(parse("%E*f", input, tz, &tp)); - EXPECT_EQ(expected + chrono::nanoseconds(ps) / 1000, tp) << input; - } - } - } - } -} - -TEST(Parse, ExtendedOffset) { - const time_zone utc = utc_time_zone(); - time_point<absl::time_internal::cctz::seconds> tp; - - EXPECT_TRUE(parse("%Ez", "+00:00", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse("%Ez", "-12:34", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 0), utc), tp); - EXPECT_TRUE(parse("%Ez", "+12:34", utc, &tp)); - EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 26, 0), utc), tp); - EXPECT_FALSE(parse("%Ez", "-12:3", utc, &tp)); - - for (auto fmt : {"%Ez", "%z"}) { - EXPECT_TRUE(parse(fmt, "+0000", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(fmt, "-1234", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 0), utc), tp); - EXPECT_TRUE(parse(fmt, "+1234", utc, &tp)); - EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 26, 0), utc), tp); - EXPECT_FALSE(parse(fmt, "-123", utc, &tp)); - - EXPECT_TRUE(parse(fmt, "+00", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(fmt, "-12", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 0, 0), utc), tp); - EXPECT_TRUE(parse(fmt, "+12", utc, &tp)); - EXPECT_EQ(convert(civil_second(1969, 12, 31, 12, 0, 0), utc), tp); - EXPECT_FALSE(parse(fmt, "-1", utc, &tp)); - } -} - -TEST(Parse, ExtendedSecondOffset) { - const time_zone utc = utc_time_zone(); - time_point<absl::time_internal::cctz::seconds> tp; - - for (auto fmt : {"%Ez", "%E*z", "%:z", "%::z", "%:::z"}) { - EXPECT_TRUE(parse(fmt, "+00:00:00", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(fmt, "-12:34:56", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 56), utc), tp); - EXPECT_TRUE(parse(fmt, "+12:34:56", utc, &tp)); - EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 25, 4), utc), tp); - EXPECT_FALSE(parse(fmt, "-12:34:5", utc, &tp)); - - EXPECT_TRUE(parse(fmt, "+000000", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(fmt, "-123456", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 56), utc), tp); - EXPECT_TRUE(parse(fmt, "+123456", utc, &tp)); - EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 25, 4), utc), tp); - EXPECT_FALSE(parse(fmt, "-12345", utc, &tp)); - - EXPECT_TRUE(parse(fmt, "+00:00", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(fmt, "-12:34", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 0), utc), tp); - EXPECT_TRUE(parse(fmt, "+12:34", utc, &tp)); - EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 26, 0), utc), tp); - EXPECT_FALSE(parse(fmt, "-12:3", utc, &tp)); - - EXPECT_TRUE(parse(fmt, "+0000", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(fmt, "-1234", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 34, 0), utc), tp); - EXPECT_TRUE(parse(fmt, "+1234", utc, &tp)); - EXPECT_EQ(convert(civil_second(1969, 12, 31, 11, 26, 0), utc), tp); - EXPECT_FALSE(parse(fmt, "-123", utc, &tp)); - - EXPECT_TRUE(parse(fmt, "+00", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(fmt, "-12", utc, &tp)); - EXPECT_EQ(convert(civil_second(1970, 1, 1, 12, 0, 0), utc), tp); - EXPECT_TRUE(parse(fmt, "+12", utc, &tp)); - EXPECT_EQ(convert(civil_second(1969, 12, 31, 12, 0, 0), utc), tp); - EXPECT_FALSE(parse(fmt, "-1", utc, &tp)); - } -} - -TEST(Parse, ExtendedYears) { - const time_zone utc = utc_time_zone(); - const char e4y_fmt[] = "%E4Y%m%d"; // no separators - time_point<absl::time_internal::cctz::seconds> tp; - - // %E4Y consumes exactly four chars, including any sign. - EXPECT_TRUE(parse(e4y_fmt, "-9991127", utc, &tp)); - EXPECT_EQ(convert(civil_second(-999, 11, 27, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(e4y_fmt, "-0991127", utc, &tp)); - EXPECT_EQ(convert(civil_second(-99, 11, 27, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(e4y_fmt, "-0091127", utc, &tp)); - EXPECT_EQ(convert(civil_second(-9, 11, 27, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(e4y_fmt, "-0011127", utc, &tp)); - EXPECT_EQ(convert(civil_second(-1, 11, 27, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(e4y_fmt, "00001127", utc, &tp)); - EXPECT_EQ(convert(civil_second(0, 11, 27, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(e4y_fmt, "00011127", utc, &tp)); - EXPECT_EQ(convert(civil_second(1, 11, 27, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(e4y_fmt, "00091127", utc, &tp)); - EXPECT_EQ(convert(civil_second(9, 11, 27, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(e4y_fmt, "00991127", utc, &tp)); - EXPECT_EQ(convert(civil_second(99, 11, 27, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(e4y_fmt, "09991127", utc, &tp)); - EXPECT_EQ(convert(civil_second(999, 11, 27, 0, 0, 0), utc), tp); - EXPECT_TRUE(parse(e4y_fmt, "99991127", utc, &tp)); - EXPECT_EQ(convert(civil_second(9999, 11, 27, 0, 0, 0), utc), tp); - - // When the year is outside [-999:9999], the parse fails. - EXPECT_FALSE(parse(e4y_fmt, "-10001127", utc, &tp)); - EXPECT_FALSE(parse(e4y_fmt, "100001127", utc, &tp)); -} - -TEST(Parse, RFC3339Format) { - const time_zone tz = utc_time_zone(); - time_point<chrono::nanoseconds> tp; - EXPECT_TRUE(parse(RFC3339_sec, "2014-02-12T20:21:00+00:00", tz, &tp)); - ExpectTime(tp, tz, 2014, 2, 12, 20, 21, 0, 0, false, "UTC"); - - // Check that %ET also accepts "t". - time_point<chrono::nanoseconds> tp2; - EXPECT_TRUE(parse(RFC3339_sec, "2014-02-12t20:21:00+00:00", tz, &tp2)); - EXPECT_EQ(tp, tp2); - - // Check that %Ez also accepts "Z" as a synonym for "+00:00". - time_point<chrono::nanoseconds> tp3; - EXPECT_TRUE(parse(RFC3339_sec, "2014-02-12T20:21:00Z", tz, &tp3)); - EXPECT_EQ(tp, tp3); - - // Check that %Ez also accepts "z" as a synonym for "+00:00". - time_point<chrono::nanoseconds> tp4; - EXPECT_TRUE(parse(RFC3339_sec, "2014-02-12T20:21:00z", tz, &tp4)); - EXPECT_EQ(tp, tp4); -} - -TEST(Parse, Week) { - const time_zone utc = utc_time_zone(); - time_point<absl::time_internal::cctz::seconds> tp; - - auto exp = convert(civil_second(2017, 1, 1, 0, 0, 0), utc); - EXPECT_TRUE(parse("%Y-%U-%u", "2017-01-7", utc, &tp)); - EXPECT_EQ(exp, tp); - EXPECT_TRUE(parse("%Y-%W-%w", "2017-00-0", utc, &tp)); - EXPECT_EQ(exp, tp); - - exp = convert(civil_second(2017, 12, 31, 0, 0, 0), utc); - EXPECT_TRUE(parse("%Y-%U-%u", "2017-53-7", utc, &tp)); - EXPECT_EQ(exp, tp); - EXPECT_TRUE(parse("%Y-%W-%w", "2017-52-0", utc, &tp)); - EXPECT_EQ(exp, tp); - - exp = convert(civil_second(2018, 1, 1, 0, 0, 0), utc); - EXPECT_TRUE(parse("%Y-%U-%u", "2018-00-1", utc, &tp)); - EXPECT_EQ(exp, tp); - EXPECT_TRUE(parse("%Y-%W-%w", "2018-01-1", utc, &tp)); - EXPECT_EQ(exp, tp); - - exp = convert(civil_second(2018, 12, 31, 0, 0, 0), utc); - EXPECT_TRUE(parse("%Y-%U-%u", "2018-52-1", utc, &tp)); - EXPECT_EQ(exp, tp); - EXPECT_TRUE(parse("%Y-%W-%w", "2018-53-1", utc, &tp)); - EXPECT_EQ(exp, tp); - - exp = convert(civil_second(2019, 1, 1, 0, 0, 0), utc); - EXPECT_TRUE(parse("%Y-%U-%u", "2019-00-2", utc, &tp)); - EXPECT_EQ(exp, tp); - EXPECT_TRUE(parse("%Y-%W-%w", "2019-00-2", utc, &tp)); - EXPECT_EQ(exp, tp); - - exp = convert(civil_second(2019, 12, 31, 0, 0, 0), utc); - EXPECT_TRUE(parse("%Y-%U-%u", "2019-52-2", utc, &tp)); - EXPECT_EQ(exp, tp); - EXPECT_TRUE(parse("%Y-%W-%w", "2019-52-2", utc, &tp)); - EXPECT_EQ(exp, tp); -} - -TEST(Parse, WeekYearShift) { - // %U/%W conversions with week values in {0, 52, 53} can slip - // into the previous/following calendar years. - const time_zone utc = utc_time_zone(); - time_point<absl::time_internal::cctz::seconds> tp; - - auto exp = convert(civil_second(2019, 12, 31, 0, 0, 0), utc); - EXPECT_TRUE(parse("%Y-%U-%u", "2020-00-2", utc, &tp)); - EXPECT_EQ(exp, tp); - EXPECT_TRUE(parse("%Y-%W-%w", "2020-00-2", utc, &tp)); - EXPECT_EQ(exp, tp); - - exp = convert(civil_second(2021, 1, 1, 0, 0, 0), utc); - EXPECT_TRUE(parse("%Y-%U-%u", "2020-52-5", utc, &tp)); - EXPECT_EQ(exp, tp); - EXPECT_TRUE(parse("%Y-%W-%w", "2020-52-5", utc, &tp)); - EXPECT_EQ(exp, tp); -} - -TEST(Parse, MaxRange) { - const time_zone utc = utc_time_zone(); - time_point<absl::time_internal::cctz::seconds> tp; - - // tests the upper limit using +00:00 offset - EXPECT_TRUE( - parse(RFC3339_sec, "292277026596-12-04T15:30:07+00:00", utc, &tp)); - EXPECT_EQ(tp, time_point<absl::time_internal::cctz::seconds>::max()); - EXPECT_FALSE( - parse(RFC3339_sec, "292277026596-12-04T15:30:08+00:00", utc, &tp)); - - // tests the upper limit using -01:00 offset - EXPECT_TRUE( - parse(RFC3339_sec, "292277026596-12-04T14:30:07-01:00", utc, &tp)); - EXPECT_EQ(tp, time_point<absl::time_internal::cctz::seconds>::max()); - EXPECT_FALSE( - parse(RFC3339_sec, "292277026596-12-04T15:30:07-01:00", utc, &tp)); - - // tests the lower limit using +00:00 offset - EXPECT_TRUE( - parse(RFC3339_sec, "-292277022657-01-27T08:29:52+00:00", utc, &tp)); - EXPECT_EQ(tp, time_point<absl::time_internal::cctz::seconds>::min()); - EXPECT_FALSE( - parse(RFC3339_sec, "-292277022657-01-27T08:29:51+00:00", utc, &tp)); - - // tests the lower limit using +01:00 offset - EXPECT_TRUE( - parse(RFC3339_sec, "-292277022657-01-27T09:29:52+01:00", utc, &tp)); - EXPECT_EQ(tp, time_point<absl::time_internal::cctz::seconds>::min()); - EXPECT_FALSE( - parse(RFC3339_sec, "-292277022657-01-27T08:29:51+01:00", utc, &tp)); - - // tests max/min civil-second overflow - EXPECT_FALSE( - parse(RFC3339_sec, "9223372036854775807-12-31T23:59:59-00:01", utc, &tp)); - EXPECT_FALSE(parse(RFC3339_sec, "-9223372036854775808-01-01T00:00:00+00:01", - utc, &tp)); - - // TODO: Add tests that parsing times with fractional seconds overflow - // appropriately. This can't be done until cctz::parse() properly detects - // overflow when combining the chrono seconds and femto. -} - -// -// Roundtrip test for format()/parse(). -// - -TEST(FormatParse, RoundTrip) { - time_zone lax; - EXPECT_TRUE(load_time_zone("America/Los_Angeles", &lax)); - const auto in = convert(civil_second(1977, 6, 28, 9, 8, 7), lax); - const auto subseconds = chrono::nanoseconds(654321); - - // RFC3339, which renders subseconds. - { - time_point<chrono::nanoseconds> out; - const std::string s = format(RFC3339_full, in + subseconds, lax); - EXPECT_TRUE(parse(RFC3339_full, s, lax, &out)) << s; - EXPECT_EQ(in + subseconds, out); // RFC3339_full includes %Ez - } - - // RFC1123, which only does whole seconds. - { - time_point<chrono::nanoseconds> out; - const std::string s = format(RFC1123_full, in, lax); - EXPECT_TRUE(parse(RFC1123_full, s, lax, &out)) << s; - EXPECT_EQ(in, out); // RFC1123_full includes %z - } - -#if defined(_WIN32) || defined(_WIN64) - // Initial investigations indicate the %c does not roundtrip on Windows. - // TODO: Figure out what is going on here (perhaps a locale problem). -#elif defined(__EMSCRIPTEN__) - // strftime() and strptime() use different defintions for "%c" under - // emscripten (see https://github.com/kripken/emscripten/pull/7491), - // causing its round-trip test to fail. -#else - // Even though we don't know what %c will produce, it should roundtrip, - // but only in the 0-offset timezone. - { - time_point<chrono::nanoseconds> out; - time_zone utc = utc_time_zone(); - const std::string s = format("%c", in, utc); - EXPECT_TRUE(parse("%c", s, utc, &out)) << s; - EXPECT_EQ(in, out); - } -#endif -} - -TEST(FormatParse, RoundTripDistantFuture) { - const time_zone utc = utc_time_zone(); - const time_point<absl::time_internal::cctz::seconds> in = - time_point<absl::time_internal::cctz::seconds>::max(); - const std::string s = format(RFC3339_full, in, utc); - time_point<absl::time_internal::cctz::seconds> out; - EXPECT_TRUE(parse(RFC3339_full, s, utc, &out)) << s; - EXPECT_EQ(in, out); -} - -TEST(FormatParse, RoundTripDistantPast) { - const time_zone utc = utc_time_zone(); - const time_point<absl::time_internal::cctz::seconds> in = - time_point<absl::time_internal::cctz::seconds>::min(); - const std::string s = format(RFC3339_full, in, utc); - time_point<absl::time_internal::cctz::seconds> out; - EXPECT_TRUE(parse(RFC3339_full, s, utc, &out)) << s; - EXPECT_EQ(in, out); -} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_if.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_if.cc deleted file mode 100644 index 0319b2f98e..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_if.cc +++ /dev/null @@ -1,45 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "time_zone_if.h" - -#include "absl/base/config.h" -#include "time_zone_info.h" -#include "time_zone_libc.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -std::unique_ptr<TimeZoneIf> TimeZoneIf::Load(const std::string& name) { - // Support "libc:localtime" and "libc:*" to access the legacy - // localtime and UTC support respectively from the C library. - if (name.compare(0, 5, "libc:") == 0) { - return std::unique_ptr<TimeZoneIf>(new TimeZoneLibC(name.substr(5))); - } - - // Otherwise use the "zoneinfo" implementation by default. - std::unique_ptr<TimeZoneInfo> tz(new TimeZoneInfo); - if (!tz->Load(name)) tz.reset(); - return std::unique_ptr<TimeZoneIf>(tz.release()); -} - -// Defined out-of-line to avoid emitting a weak vtable in all TUs. -TimeZoneIf::~TimeZoneIf() {} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_if.h b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_if.h deleted file mode 100644 index 32c0891c1e..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_if.h +++ /dev/null @@ -1,76 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IF_H_ -#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IF_H_ - -#include <chrono> -#include <cstdint> -#include <memory> -#include <string> - -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/civil_time.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -// A simple interface used to hide time-zone complexities from time_zone::Impl. -// Subclasses implement the functions for civil-time conversions in the zone. -class TimeZoneIf { - public: - // A factory function for TimeZoneIf implementations. - static std::unique_ptr<TimeZoneIf> Load(const std::string& name); - - virtual ~TimeZoneIf(); - - virtual time_zone::absolute_lookup BreakTime( - const time_point<seconds>& tp) const = 0; - virtual time_zone::civil_lookup MakeTime(const civil_second& cs) const = 0; - - virtual bool NextTransition(const time_point<seconds>& tp, - time_zone::civil_transition* trans) const = 0; - virtual bool PrevTransition(const time_point<seconds>& tp, - time_zone::civil_transition* trans) const = 0; - - virtual std::string Version() const = 0; - virtual std::string Description() const = 0; - - protected: - TimeZoneIf() {} -}; - -// Convert between time_point<seconds> and a count of seconds since the -// Unix epoch. We assume that the std::chrono::system_clock and the -// Unix clock are second aligned, but not that they share an epoch. -inline std::int_fast64_t ToUnixSeconds(const time_point<seconds>& tp) { - return (tp - std::chrono::time_point_cast<seconds>( - std::chrono::system_clock::from_time_t(0))) - .count(); -} -inline time_point<seconds> FromUnixSeconds(std::int_fast64_t t) { - return std::chrono::time_point_cast<seconds>( - std::chrono::system_clock::from_time_t(0)) + - seconds(t); -} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IF_H_ diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_impl.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_impl.cc deleted file mode 100644 index f34e3aec84..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_impl.cc +++ /dev/null @@ -1,113 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "time_zone_impl.h" - -#include <deque> -#include <memory> -#include <mutex> -#include <string> -#include <unordered_map> -#include <utility> - -#include "absl/base/config.h" -#include "time_zone_fixed.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -namespace { - -// time_zone::Impls are linked into a map to support fast lookup by name. -using TimeZoneImplByName = - std::unordered_map<std::string, const time_zone::Impl*>; -TimeZoneImplByName* time_zone_map = nullptr; - -// Mutual exclusion for time_zone_map. -std::mutex& TimeZoneMutex() { - // This mutex is intentionally "leaked" to avoid the static deinitialization - // order fiasco (std::mutex's destructor is not trivial on many platforms). - static std::mutex* time_zone_mutex = new std::mutex; - return *time_zone_mutex; -} - -} // namespace - -time_zone time_zone::Impl::UTC() { return time_zone(UTCImpl()); } - -bool time_zone::Impl::LoadTimeZone(const std::string& name, time_zone* tz) { - const Impl* const utc_impl = UTCImpl(); - - // Check for UTC (which is never a key in time_zone_map). - auto offset = seconds::zero(); - if (FixedOffsetFromName(name, &offset) && offset == seconds::zero()) { - *tz = time_zone(utc_impl); - return true; - } - - // Check whether the time zone has already been loaded. - { - std::lock_guard<std::mutex> lock(TimeZoneMutex()); - if (time_zone_map != nullptr) { - TimeZoneImplByName::const_iterator itr = time_zone_map->find(name); - if (itr != time_zone_map->end()) { - *tz = time_zone(itr->second); - return itr->second != utc_impl; - } - } - } - - // Load the new time zone (outside the lock). - std::unique_ptr<const Impl> new_impl(new Impl(name)); - - // Add the new time zone to the map. - std::lock_guard<std::mutex> lock(TimeZoneMutex()); - if (time_zone_map == nullptr) time_zone_map = new TimeZoneImplByName; - const Impl*& impl = (*time_zone_map)[name]; - if (impl == nullptr) { // this thread won any load race - impl = new_impl->zone_ ? new_impl.release() : utc_impl; - } - *tz = time_zone(impl); - return impl != utc_impl; -} - -void time_zone::Impl::ClearTimeZoneMapTestOnly() { - std::lock_guard<std::mutex> lock(TimeZoneMutex()); - if (time_zone_map != nullptr) { - // Existing time_zone::Impl* entries are in the wild, so we can't delete - // them. Instead, we move them to a private container, where they are - // logically unreachable but not "leaked". Future requests will result - // in reloading the data. - static auto* cleared = new std::deque<const time_zone::Impl*>; - for (const auto& element : *time_zone_map) { - cleared->push_back(element.second); - } - time_zone_map->clear(); - } -} - -time_zone::Impl::Impl(const std::string& name) - : name_(name), zone_(TimeZoneIf::Load(name_)) {} - -const time_zone::Impl* time_zone::Impl::UTCImpl() { - static const Impl* utc_impl = new Impl("UTC"); // never fails - return utc_impl; -} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_impl.h b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_impl.h deleted file mode 100644 index 7d747ba966..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_impl.h +++ /dev/null @@ -1,93 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IMPL_H_ -#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IMPL_H_ - -#include <memory> -#include <string> - -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/civil_time.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" -#include "time_zone_if.h" -#include "time_zone_info.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -// time_zone::Impl is the internal object referenced by a cctz::time_zone. -class time_zone::Impl { - public: - // The UTC time zone. Also used for other time zones that fail to load. - static time_zone UTC(); - - // Load a named time zone. Returns false if the name is invalid, or if - // some other kind of error occurs. Note that loading "UTC" never fails. - static bool LoadTimeZone(const std::string& name, time_zone* tz); - - // Clears the map of cached time zones. Primarily for use in benchmarks - // that gauge the performance of loading/parsing the time-zone data. - static void ClearTimeZoneMapTestOnly(); - - // The primary key is the time-zone ID (e.g., "America/New_York"). - const std::string& Name() const { - // TODO: It would nice if the zoneinfo data included the zone name. - return name_; - } - - // Breaks a time_point down to civil-time components in this time zone. - time_zone::absolute_lookup BreakTime(const time_point<seconds>& tp) const { - return zone_->BreakTime(tp); - } - - // Converts the civil-time components in this time zone into a time_point. - // That is, the opposite of BreakTime(). The requested civil time may be - // ambiguous or illegal due to a change of UTC offset. - time_zone::civil_lookup MakeTime(const civil_second& cs) const { - return zone_->MakeTime(cs); - } - - // Finds the time of the next/previous offset change in this time zone. - bool NextTransition(const time_point<seconds>& tp, - time_zone::civil_transition* trans) const { - return zone_->NextTransition(tp, trans); - } - bool PrevTransition(const time_point<seconds>& tp, - time_zone::civil_transition* trans) const { - return zone_->PrevTransition(tp, trans); - } - - // Returns an implementation-defined version string for this time zone. - std::string Version() const { return zone_->Version(); } - - // Returns an implementation-defined description of this time zone. - std::string Description() const { return zone_->Description(); } - - private: - explicit Impl(const std::string& name); - static const Impl* UTCImpl(); - - const std::string name_; - std::unique_ptr<TimeZoneIf> zone_; -}; - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_IMPL_H_ diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_info.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_info.cc deleted file mode 100644 index 665fb424fe..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_info.cc +++ /dev/null @@ -1,958 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// This file implements the TimeZoneIf interface using the "zoneinfo" -// data provided by the IANA Time Zone Database (i.e., the only real game -// in town). -// -// TimeZoneInfo represents the history of UTC-offset changes within a time -// zone. Most changes are due to daylight-saving rules, but occasionally -// shifts are made to the time-zone's base offset. The database only attempts -// to be definitive for times since 1970, so be wary of local-time conversions -// before that. Also, rule and zone-boundary changes are made at the whim -// of governments, so the conversion of future times needs to be taken with -// a grain of salt. -// -// For more information see tzfile(5), http://www.iana.org/time-zones, or -// https://en.wikipedia.org/wiki/Zoneinfo. -// -// Note that we assume the proleptic Gregorian calendar and 60-second -// minutes throughout. - -#include "time_zone_info.h" - -#include <algorithm> -#include <cassert> -#include <chrono> -#include <cstdint> -#include <cstdio> -#include <cstdlib> -#include <cstring> -#include <functional> -#include <iostream> -#include <memory> -#include <sstream> -#include <string> - -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/civil_time.h" -#include "time_zone_fixed.h" -#include "time_zone_posix.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -namespace { - -inline bool IsLeap(year_t year) { - return (year % 4) == 0 && ((year % 100) != 0 || (year % 400) == 0); -} - -// The number of days in non-leap and leap years respectively. -const std::int_least32_t kDaysPerYear[2] = {365, 366}; - -// The day offsets of the beginning of each (1-based) month in non-leap and -// leap years respectively (e.g., 335 days before December in a leap year). -const std::int_least16_t kMonthOffsets[2][1 + 12 + 1] = { - {-1, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365}, - {-1, 0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335, 366}, -}; - -// We reject leap-second encoded zoneinfo and so assume 60-second minutes. -const std::int_least32_t kSecsPerDay = 24 * 60 * 60; - -// 400-year chunks always have 146097 days (20871 weeks). -const std::int_least64_t kSecsPer400Years = 146097LL * kSecsPerDay; - -// Like kDaysPerYear[] but scaled up by a factor of kSecsPerDay. -const std::int_least32_t kSecsPerYear[2] = { - 365 * kSecsPerDay, - 366 * kSecsPerDay, -}; - -// Single-byte, unsigned numeric values are encoded directly. -inline std::uint_fast8_t Decode8(const char* cp) { - return static_cast<std::uint_fast8_t>(*cp) & 0xff; -} - -// Multi-byte, numeric values are encoded using a MSB first, -// twos-complement representation. These helpers decode, from -// the given address, 4-byte and 8-byte values respectively. -// Note: If int_fastXX_t == intXX_t and this machine is not -// twos complement, then there will be at least one input value -// we cannot represent. -std::int_fast32_t Decode32(const char* cp) { - std::uint_fast32_t v = 0; - for (int i = 0; i != (32 / 8); ++i) v = (v << 8) | Decode8(cp++); - const std::int_fast32_t s32max = 0x7fffffff; - const auto s32maxU = static_cast<std::uint_fast32_t>(s32max); - if (v <= s32maxU) return static_cast<std::int_fast32_t>(v); - return static_cast<std::int_fast32_t>(v - s32maxU - 1) - s32max - 1; -} - -std::int_fast64_t Decode64(const char* cp) { - std::uint_fast64_t v = 0; - for (int i = 0; i != (64 / 8); ++i) v = (v << 8) | Decode8(cp++); - const std::int_fast64_t s64max = 0x7fffffffffffffff; - const auto s64maxU = static_cast<std::uint_fast64_t>(s64max); - if (v <= s64maxU) return static_cast<std::int_fast64_t>(v); - return static_cast<std::int_fast64_t>(v - s64maxU - 1) - s64max - 1; -} - -// Generate a year-relative offset for a PosixTransition. -std::int_fast64_t TransOffset(bool leap_year, int jan1_weekday, - const PosixTransition& pt) { - std::int_fast64_t days = 0; - switch (pt.date.fmt) { - case PosixTransition::J: { - days = pt.date.j.day; - if (!leap_year || days < kMonthOffsets[1][3]) days -= 1; - break; - } - case PosixTransition::N: { - days = pt.date.n.day; - break; - } - case PosixTransition::M: { - const bool last_week = (pt.date.m.week == 5); - days = kMonthOffsets[leap_year][pt.date.m.month + last_week]; - const std::int_fast64_t weekday = (jan1_weekday + days) % 7; - if (last_week) { - days -= (weekday + 7 - 1 - pt.date.m.weekday) % 7 + 1; - } else { - days += (pt.date.m.weekday + 7 - weekday) % 7; - days += (pt.date.m.week - 1) * 7; - } - break; - } - } - return (days * kSecsPerDay) + pt.time.offset; -} - -inline time_zone::civil_lookup MakeUnique(const time_point<seconds>& tp) { - time_zone::civil_lookup cl; - cl.kind = time_zone::civil_lookup::UNIQUE; - cl.pre = cl.trans = cl.post = tp; - return cl; -} - -inline time_zone::civil_lookup MakeUnique(std::int_fast64_t unix_time) { - return MakeUnique(FromUnixSeconds(unix_time)); -} - -inline time_zone::civil_lookup MakeSkipped(const Transition& tr, - const civil_second& cs) { - time_zone::civil_lookup cl; - cl.kind = time_zone::civil_lookup::SKIPPED; - cl.pre = FromUnixSeconds(tr.unix_time - 1 + (cs - tr.prev_civil_sec)); - cl.trans = FromUnixSeconds(tr.unix_time); - cl.post = FromUnixSeconds(tr.unix_time - (tr.civil_sec - cs)); - return cl; -} - -inline time_zone::civil_lookup MakeRepeated(const Transition& tr, - const civil_second& cs) { - time_zone::civil_lookup cl; - cl.kind = time_zone::civil_lookup::REPEATED; - cl.pre = FromUnixSeconds(tr.unix_time - 1 - (tr.prev_civil_sec - cs)); - cl.trans = FromUnixSeconds(tr.unix_time); - cl.post = FromUnixSeconds(tr.unix_time + (cs - tr.civil_sec)); - return cl; -} - -inline civil_second YearShift(const civil_second& cs, year_t shift) { - return civil_second(cs.year() + shift, cs.month(), cs.day(), cs.hour(), - cs.minute(), cs.second()); -} - -} // namespace - -// What (no leap-seconds) UTC+seconds zoneinfo would look like. -bool TimeZoneInfo::ResetToBuiltinUTC(const seconds& offset) { - transition_types_.resize(1); - TransitionType& tt(transition_types_.back()); - tt.utc_offset = static_cast<std::int_least32_t>(offset.count()); - tt.is_dst = false; - tt.abbr_index = 0; - - // We temporarily add some redundant, contemporary (2013 through 2023) - // transitions for performance reasons. See TimeZoneInfo::LocalTime(). - // TODO: Fix the performance issue and remove the extra transitions. - transitions_.clear(); - transitions_.reserve(12); - for (const std::int_fast64_t unix_time : { - -(1LL << 59), // BIG_BANG - 1356998400LL, // 2013-01-01T00:00:00+00:00 - 1388534400LL, // 2014-01-01T00:00:00+00:00 - 1420070400LL, // 2015-01-01T00:00:00+00:00 - 1451606400LL, // 2016-01-01T00:00:00+00:00 - 1483228800LL, // 2017-01-01T00:00:00+00:00 - 1514764800LL, // 2018-01-01T00:00:00+00:00 - 1546300800LL, // 2019-01-01T00:00:00+00:00 - 1577836800LL, // 2020-01-01T00:00:00+00:00 - 1609459200LL, // 2021-01-01T00:00:00+00:00 - 1640995200LL, // 2022-01-01T00:00:00+00:00 - 1672531200LL, // 2023-01-01T00:00:00+00:00 - 2147483647LL, // 2^31 - 1 - }) { - Transition& tr(*transitions_.emplace(transitions_.end())); - tr.unix_time = unix_time; - tr.type_index = 0; - tr.civil_sec = LocalTime(tr.unix_time, tt).cs; - tr.prev_civil_sec = tr.civil_sec - 1; - } - - default_transition_type_ = 0; - abbreviations_ = FixedOffsetToAbbr(offset); - abbreviations_.append(1, '\0'); // add NUL - future_spec_.clear(); // never needed for a fixed-offset zone - extended_ = false; - - tt.civil_max = LocalTime(seconds::max().count(), tt).cs; - tt.civil_min = LocalTime(seconds::min().count(), tt).cs; - - transitions_.shrink_to_fit(); - return true; -} - -// Builds the in-memory header using the raw bytes from the file. -bool TimeZoneInfo::Header::Build(const tzhead& tzh) { - std::int_fast32_t v; - if ((v = Decode32(tzh.tzh_timecnt)) < 0) return false; - timecnt = static_cast<std::size_t>(v); - if ((v = Decode32(tzh.tzh_typecnt)) < 0) return false; - typecnt = static_cast<std::size_t>(v); - if ((v = Decode32(tzh.tzh_charcnt)) < 0) return false; - charcnt = static_cast<std::size_t>(v); - if ((v = Decode32(tzh.tzh_leapcnt)) < 0) return false; - leapcnt = static_cast<std::size_t>(v); - if ((v = Decode32(tzh.tzh_ttisstdcnt)) < 0) return false; - ttisstdcnt = static_cast<std::size_t>(v); - if ((v = Decode32(tzh.tzh_ttisutcnt)) < 0) return false; - ttisutcnt = static_cast<std::size_t>(v); - return true; -} - -// How many bytes of data are associated with this header. The result -// depends upon whether this is a section with 4-byte or 8-byte times. -std::size_t TimeZoneInfo::Header::DataLength(std::size_t time_len) const { - std::size_t len = 0; - len += (time_len + 1) * timecnt; // unix_time + type_index - len += (4 + 1 + 1) * typecnt; // utc_offset + is_dst + abbr_index - len += 1 * charcnt; // abbreviations - len += (time_len + 4) * leapcnt; // leap-time + TAI-UTC - len += 1 * ttisstdcnt; // UTC/local indicators - len += 1 * ttisutcnt; // standard/wall indicators - return len; -} - -// Check that the TransitionType has the expected offset/is_dst/abbreviation. -void TimeZoneInfo::CheckTransition(const std::string& name, - const TransitionType& tt, - std::int_fast32_t offset, bool is_dst, - const std::string& abbr) const { - if (tt.utc_offset != offset || tt.is_dst != is_dst || - &abbreviations_[tt.abbr_index] != abbr) { - std::clog << name << ": Transition" - << " offset=" << tt.utc_offset << "/" - << (tt.is_dst ? "DST" : "STD") - << "/abbr=" << &abbreviations_[tt.abbr_index] - << " does not match POSIX spec '" << future_spec_ << "'\n"; - } -} - -// zic(8) can generate no-op transitions when a zone changes rules at an -// instant when there is actually no discontinuity. So we check whether -// two transitions have equivalent types (same offset/is_dst/abbr). -bool TimeZoneInfo::EquivTransitions(std::uint_fast8_t tt1_index, - std::uint_fast8_t tt2_index) const { - if (tt1_index == tt2_index) return true; - const TransitionType& tt1(transition_types_[tt1_index]); - const TransitionType& tt2(transition_types_[tt2_index]); - if (tt1.is_dst != tt2.is_dst) return false; - if (tt1.utc_offset != tt2.utc_offset) return false; - if (tt1.abbr_index != tt2.abbr_index) return false; - return true; -} - -// Use the POSIX-TZ-environment-variable-style string to handle times -// in years after the last transition stored in the zoneinfo data. -void TimeZoneInfo::ExtendTransitions(const std::string& name, - const Header& hdr) { - extended_ = false; - bool extending = !future_spec_.empty(); - - PosixTimeZone posix; - if (extending && !ParsePosixSpec(future_spec_, &posix)) { - std::clog << name << ": Failed to parse '" << future_spec_ << "'\n"; - extending = false; - } - - if (extending && posix.dst_abbr.empty()) { // std only - // The future specification should match the last/default transition, - // and that means that handling the future will fall out naturally. - std::uint_fast8_t index = default_transition_type_; - if (hdr.timecnt != 0) index = transitions_[hdr.timecnt - 1].type_index; - const TransitionType& tt(transition_types_[index]); - CheckTransition(name, tt, posix.std_offset, false, posix.std_abbr); - extending = false; - } - - if (extending && hdr.timecnt < 2) { - std::clog << name << ": Too few transitions for POSIX spec\n"; - extending = false; - } - - if (!extending) { - // Ensure that there is always a transition in the second half of the - // time line (the BIG_BANG transition is in the first half) so that the - // signed difference between a civil_second and the civil_second of its - // previous transition is always representable, without overflow. - const Transition& last(transitions_.back()); - if (last.unix_time < 0) { - const std::uint_fast8_t type_index = last.type_index; - Transition& tr(*transitions_.emplace(transitions_.end())); - tr.unix_time = 2147483647; // 2038-01-19T03:14:07+00:00 - tr.type_index = type_index; - } - return; // last transition wins - } - - // Extend the transitions for an additional 400 years using the - // future specification. Years beyond those can be handled by - // mapping back to a cycle-equivalent year within that range. - // zic(8) should probably do this so that we don't have to. - // TODO: Reduce the extension by the number of compatible - // transitions already in place. - transitions_.reserve(hdr.timecnt + 400 * 2 + 1); - transitions_.resize(hdr.timecnt + 400 * 2); - extended_ = true; - - // The future specification should match the last two transitions, - // and those transitions should have different is_dst flags. Note - // that nothing says the UTC offset used by the is_dst transition - // must be greater than that used by the !is_dst transition. (See - // Europe/Dublin, for example.) - const Transition* tr0 = &transitions_[hdr.timecnt - 1]; - const Transition* tr1 = &transitions_[hdr.timecnt - 2]; - const TransitionType* tt0 = &transition_types_[tr0->type_index]; - const TransitionType* tt1 = &transition_types_[tr1->type_index]; - const TransitionType& dst(tt0->is_dst ? *tt0 : *tt1); - const TransitionType& std(tt0->is_dst ? *tt1 : *tt0); - CheckTransition(name, dst, posix.dst_offset, true, posix.dst_abbr); - CheckTransition(name, std, posix.std_offset, false, posix.std_abbr); - - // Add the transitions to tr1 and back to tr0 for each extra year. - last_year_ = LocalTime(tr0->unix_time, *tt0).cs.year(); - bool leap_year = IsLeap(last_year_); - const civil_day jan1(last_year_, 1, 1); - std::int_fast64_t jan1_time = civil_second(jan1) - civil_second(); - int jan1_weekday = (static_cast<int>(get_weekday(jan1)) + 1) % 7; - Transition* tr = &transitions_[hdr.timecnt]; // next trans to fill - if (LocalTime(tr1->unix_time, *tt1).cs.year() != last_year_) { - // Add a single extra transition to align to a calendar year. - transitions_.resize(transitions_.size() + 1); - assert(tr == &transitions_[hdr.timecnt]); // no reallocation - const PosixTransition& pt1(tt0->is_dst ? posix.dst_end : posix.dst_start); - std::int_fast64_t tr1_offset = TransOffset(leap_year, jan1_weekday, pt1); - tr->unix_time = jan1_time + tr1_offset - tt0->utc_offset; - tr++->type_index = tr1->type_index; - tr0 = &transitions_[hdr.timecnt]; - tr1 = &transitions_[hdr.timecnt - 1]; - tt0 = &transition_types_[tr0->type_index]; - tt1 = &transition_types_[tr1->type_index]; - } - const PosixTransition& pt1(tt0->is_dst ? posix.dst_end : posix.dst_start); - const PosixTransition& pt0(tt0->is_dst ? posix.dst_start : posix.dst_end); - for (const year_t limit = last_year_ + 400; last_year_ < limit;) { - last_year_ += 1; // an additional year of generated transitions - jan1_time += kSecsPerYear[leap_year]; - jan1_weekday = (jan1_weekday + kDaysPerYear[leap_year]) % 7; - leap_year = !leap_year && IsLeap(last_year_); - std::int_fast64_t tr1_offset = TransOffset(leap_year, jan1_weekday, pt1); - tr->unix_time = jan1_time + tr1_offset - tt0->utc_offset; - tr++->type_index = tr1->type_index; - std::int_fast64_t tr0_offset = TransOffset(leap_year, jan1_weekday, pt0); - tr->unix_time = jan1_time + tr0_offset - tt1->utc_offset; - tr++->type_index = tr0->type_index; - } - assert(tr == &transitions_[0] + transitions_.size()); -} - -bool TimeZoneInfo::Load(const std::string& name, ZoneInfoSource* zip) { - // Read and validate the header. - tzhead tzh; - if (zip->Read(&tzh, sizeof(tzh)) != sizeof(tzh)) return false; - if (strncmp(tzh.tzh_magic, TZ_MAGIC, sizeof(tzh.tzh_magic)) != 0) - return false; - Header hdr; - if (!hdr.Build(tzh)) return false; - std::size_t time_len = 4; - if (tzh.tzh_version[0] != '\0') { - // Skip the 4-byte data. - if (zip->Skip(hdr.DataLength(time_len)) != 0) return false; - // Read and validate the header for the 8-byte data. - if (zip->Read(&tzh, sizeof(tzh)) != sizeof(tzh)) return false; - if (strncmp(tzh.tzh_magic, TZ_MAGIC, sizeof(tzh.tzh_magic)) != 0) - return false; - if (tzh.tzh_version[0] == '\0') return false; - if (!hdr.Build(tzh)) return false; - time_len = 8; - } - if (hdr.typecnt == 0) return false; - if (hdr.leapcnt != 0) { - // This code assumes 60-second minutes so we do not want - // the leap-second encoded zoneinfo. We could reverse the - // compensation, but the "right" encoding is rarely used - // so currently we simply reject such data. - return false; - } - if (hdr.ttisstdcnt != 0 && hdr.ttisstdcnt != hdr.typecnt) return false; - if (hdr.ttisutcnt != 0 && hdr.ttisutcnt != hdr.typecnt) return false; - - // Read the data into a local buffer. - std::size_t len = hdr.DataLength(time_len); - std::vector<char> tbuf(len); - if (zip->Read(tbuf.data(), len) != len) return false; - const char* bp = tbuf.data(); - - // Decode and validate the transitions. - transitions_.reserve(hdr.timecnt + 2); // We might add a couple. - transitions_.resize(hdr.timecnt); - for (std::size_t i = 0; i != hdr.timecnt; ++i) { - transitions_[i].unix_time = (time_len == 4) ? Decode32(bp) : Decode64(bp); - bp += time_len; - if (i != 0) { - // Check that the transitions are ordered by time (as zic guarantees). - if (!Transition::ByUnixTime()(transitions_[i - 1], transitions_[i])) - return false; // out of order - } - } - bool seen_type_0 = false; - for (std::size_t i = 0; i != hdr.timecnt; ++i) { - transitions_[i].type_index = Decode8(bp++); - if (transitions_[i].type_index >= hdr.typecnt) return false; - if (transitions_[i].type_index == 0) seen_type_0 = true; - } - - // Decode and validate the transition types. - transition_types_.resize(hdr.typecnt); - for (std::size_t i = 0; i != hdr.typecnt; ++i) { - transition_types_[i].utc_offset = - static_cast<std::int_least32_t>(Decode32(bp)); - if (transition_types_[i].utc_offset >= kSecsPerDay || - transition_types_[i].utc_offset <= -kSecsPerDay) - return false; - bp += 4; - transition_types_[i].is_dst = (Decode8(bp++) != 0); - transition_types_[i].abbr_index = Decode8(bp++); - if (transition_types_[i].abbr_index >= hdr.charcnt) return false; - } - - // Determine the before-first-transition type. - default_transition_type_ = 0; - if (seen_type_0 && hdr.timecnt != 0) { - std::uint_fast8_t index = 0; - if (transition_types_[0].is_dst) { - index = transitions_[0].type_index; - while (index != 0 && transition_types_[index].is_dst) --index; - } - while (index != hdr.typecnt && transition_types_[index].is_dst) ++index; - if (index != hdr.typecnt) default_transition_type_ = index; - } - - // Copy all the abbreviations. - abbreviations_.assign(bp, hdr.charcnt); - bp += hdr.charcnt; - - // Skip the unused portions. We've already dispensed with leap-second - // encoded zoneinfo. The ttisstd/ttisgmt indicators only apply when - // interpreting a POSIX spec that does not include start/end rules, and - // that isn't the case here (see "zic -p"). - bp += (8 + 4) * hdr.leapcnt; // leap-time + TAI-UTC - bp += 1 * hdr.ttisstdcnt; // UTC/local indicators - bp += 1 * hdr.ttisutcnt; // standard/wall indicators - assert(bp == tbuf.data() + tbuf.size()); - - future_spec_.clear(); - if (tzh.tzh_version[0] != '\0') { - // Snarf up the NL-enclosed future POSIX spec. Note - // that version '3' files utilize an extended format. - auto get_char = [](ZoneInfoSource* azip) -> int { - unsigned char ch; // all non-EOF results are positive - return (azip->Read(&ch, 1) == 1) ? ch : EOF; - }; - if (get_char(zip) != '\n') return false; - for (int c = get_char(zip); c != '\n'; c = get_char(zip)) { - if (c == EOF) return false; - future_spec_.push_back(static_cast<char>(c)); - } - } - - // We don't check for EOF so that we're forwards compatible. - - // If we did not find version information during the standard loading - // process (as of tzh_version '3' that is unsupported), then ask the - // ZoneInfoSource for any out-of-bound version string it may be privy to. - if (version_.empty()) { - version_ = zip->Version(); - } - - // Trim redundant transitions. zic may have added these to work around - // differences between the glibc and reference implementations (see - // zic.c:dontmerge) and the Qt library (see zic.c:WORK_AROUND_QTBUG_53071). - // For us, they just get in the way when we do future_spec_ extension. - while (hdr.timecnt > 1) { - if (!EquivTransitions(transitions_[hdr.timecnt - 1].type_index, - transitions_[hdr.timecnt - 2].type_index)) { - break; - } - hdr.timecnt -= 1; - } - transitions_.resize(hdr.timecnt); - - // Ensure that there is always a transition in the first half of the - // time line (the second half is handled in ExtendTransitions()) so that - // the signed difference between a civil_second and the civil_second of - // its previous transition is always representable, without overflow. - // A contemporary zic will usually have already done this for us. - if (transitions_.empty() || transitions_.front().unix_time >= 0) { - Transition& tr(*transitions_.emplace(transitions_.begin())); - tr.unix_time = -(1LL << 59); // see tz/zic.c "BIG_BANG" - tr.type_index = default_transition_type_; - hdr.timecnt += 1; - } - - // Extend the transitions using the future specification. - ExtendTransitions(name, hdr); - - // Compute the local civil time for each transition and the preceding - // second. These will be used for reverse conversions in MakeTime(). - const TransitionType* ttp = &transition_types_[default_transition_type_]; - for (std::size_t i = 0; i != transitions_.size(); ++i) { - Transition& tr(transitions_[i]); - tr.prev_civil_sec = LocalTime(tr.unix_time, *ttp).cs - 1; - ttp = &transition_types_[tr.type_index]; - tr.civil_sec = LocalTime(tr.unix_time, *ttp).cs; - if (i != 0) { - // Check that the transitions are ordered by civil time. Essentially - // this means that an offset change cannot cross another such change. - // No one does this in practice, and we depend on it in MakeTime(). - if (!Transition::ByCivilTime()(transitions_[i - 1], tr)) - return false; // out of order - } - } - - // Compute the maximum/minimum civil times that can be converted to a - // time_point<seconds> for each of the zone's transition types. - for (auto& tt : transition_types_) { - tt.civil_max = LocalTime(seconds::max().count(), tt).cs; - tt.civil_min = LocalTime(seconds::min().count(), tt).cs; - } - - transitions_.shrink_to_fit(); - return true; -} - -namespace { - -// fopen(3) adaptor. -inline FILE* FOpen(const char* path, const char* mode) { -#if defined(_MSC_VER) - FILE* fp; - if (fopen_s(&fp, path, mode) != 0) fp = nullptr; - return fp; -#else - return fopen(path, mode); // TODO: Enable the close-on-exec flag. -#endif -} - -// A stdio(3)-backed implementation of ZoneInfoSource. -class FileZoneInfoSource : public ZoneInfoSource { - public: - static std::unique_ptr<ZoneInfoSource> Open(const std::string& name); - - std::size_t Read(void* ptr, std::size_t size) override { - size = std::min(size, len_); - std::size_t nread = fread(ptr, 1, size, fp_.get()); - len_ -= nread; - return nread; - } - int Skip(std::size_t offset) override { - offset = std::min(offset, len_); - int rc = fseek(fp_.get(), static_cast<long>(offset), SEEK_CUR); - if (rc == 0) len_ -= offset; - return rc; - } - std::string Version() const override { - // TODO: It would nice if the zoneinfo data included the tzdb version. - return std::string(); - } - - protected: - explicit FileZoneInfoSource( - FILE* fp, std::size_t len = std::numeric_limits<std::size_t>::max()) - : fp_(fp, fclose), len_(len) {} - - private: - std::unique_ptr<FILE, int (*)(FILE*)> fp_; - std::size_t len_; -}; - -std::unique_ptr<ZoneInfoSource> FileZoneInfoSource::Open( - const std::string& name) { - // Use of the "file:" prefix is intended for testing purposes only. - const std::size_t pos = (name.compare(0, 5, "file:") == 0) ? 5 : 0; - - // Map the time-zone name to a path name. - std::string path; - if (pos == name.size() || name[pos] != '/') { - const char* tzdir = "/usr/share/zoneinfo"; - char* tzdir_env = nullptr; -#if defined(_MSC_VER) - _dupenv_s(&tzdir_env, nullptr, "TZDIR"); -#else - tzdir_env = std::getenv("TZDIR"); -#endif - if (tzdir_env && *tzdir_env) tzdir = tzdir_env; - path += tzdir; - path += '/'; -#if defined(_MSC_VER) - free(tzdir_env); -#endif - } - path.append(name, pos, std::string::npos); - - // Open the zoneinfo file. - FILE* fp = FOpen(path.c_str(), "rb"); - if (fp == nullptr) return nullptr; - std::size_t length = 0; - if (fseek(fp, 0, SEEK_END) == 0) { - long offset = ftell(fp); - if (offset >= 0) { - length = static_cast<std::size_t>(offset); - } - rewind(fp); - } - return std::unique_ptr<ZoneInfoSource>(new FileZoneInfoSource(fp, length)); -} - -class AndroidZoneInfoSource : public FileZoneInfoSource { - public: - static std::unique_ptr<ZoneInfoSource> Open(const std::string& name); - std::string Version() const override { return version_; } - - private: - explicit AndroidZoneInfoSource(FILE* fp, std::size_t len, const char* vers) - : FileZoneInfoSource(fp, len), version_(vers) {} - std::string version_; -}; - -std::unique_ptr<ZoneInfoSource> AndroidZoneInfoSource::Open( - const std::string& name) { - // Use of the "file:" prefix is intended for testing purposes only. - const std::size_t pos = (name.compare(0, 5, "file:") == 0) ? 5 : 0; - - // See Android's libc/tzcode/bionic.cpp for additional information. - for (const char* tzdata : {"/data/misc/zoneinfo/current/tzdata", - "/system/usr/share/zoneinfo/tzdata"}) { - std::unique_ptr<FILE, int (*)(FILE*)> fp(FOpen(tzdata, "rb"), fclose); - if (fp.get() == nullptr) continue; - - char hbuf[24]; // covers header.zonetab_offset too - if (fread(hbuf, 1, sizeof(hbuf), fp.get()) != sizeof(hbuf)) continue; - if (strncmp(hbuf, "tzdata", 6) != 0) continue; - const char* vers = (hbuf[11] == '\0') ? hbuf + 6 : ""; - const std::int_fast32_t index_offset = Decode32(hbuf + 12); - const std::int_fast32_t data_offset = Decode32(hbuf + 16); - if (index_offset < 0 || data_offset < index_offset) continue; - if (fseek(fp.get(), static_cast<long>(index_offset), SEEK_SET) != 0) - continue; - - char ebuf[52]; // covers entry.unused too - const std::size_t index_size = - static_cast<std::size_t>(data_offset - index_offset); - const std::size_t zonecnt = index_size / sizeof(ebuf); - if (zonecnt * sizeof(ebuf) != index_size) continue; - for (std::size_t i = 0; i != zonecnt; ++i) { - if (fread(ebuf, 1, sizeof(ebuf), fp.get()) != sizeof(ebuf)) break; - const std::int_fast32_t start = data_offset + Decode32(ebuf + 40); - const std::int_fast32_t length = Decode32(ebuf + 44); - if (start < 0 || length < 0) break; - ebuf[40] = '\0'; // ensure zone name is NUL terminated - if (strcmp(name.c_str() + pos, ebuf) == 0) { - if (fseek(fp.get(), static_cast<long>(start), SEEK_SET) != 0) break; - return std::unique_ptr<ZoneInfoSource>(new AndroidZoneInfoSource( - fp.release(), static_cast<std::size_t>(length), vers)); - } - } - } - - return nullptr; -} - -} // namespace - -bool TimeZoneInfo::Load(const std::string& name) { - // We can ensure that the loading of UTC or any other fixed-offset - // zone never fails because the simple, fixed-offset state can be - // internally generated. Note that this depends on our choice to not - // accept leap-second encoded ("right") zoneinfo. - auto offset = seconds::zero(); - if (FixedOffsetFromName(name, &offset)) { - return ResetToBuiltinUTC(offset); - } - - // Find and use a ZoneInfoSource to load the named zone. - auto zip = cctz_extension::zone_info_source_factory( - name, [](const std::string& name) -> std::unique_ptr<ZoneInfoSource> { - if (auto zip = FileZoneInfoSource::Open(name)) return zip; - if (auto zip = AndroidZoneInfoSource::Open(name)) return zip; - return nullptr; - }); - return zip != nullptr && Load(name, zip.get()); -} - -// BreakTime() translation for a particular transition type. -time_zone::absolute_lookup TimeZoneInfo::LocalTime( - std::int_fast64_t unix_time, const TransitionType& tt) const { - // A civil time in "+offset" looks like (time+offset) in UTC. - // Note: We perform two additions in the civil_second domain to - // sidestep the chance of overflow in (unix_time + tt.utc_offset). - return {(civil_second() + unix_time) + tt.utc_offset, tt.utc_offset, - tt.is_dst, &abbreviations_[tt.abbr_index]}; -} - -// BreakTime() translation for a particular transition. -time_zone::absolute_lookup TimeZoneInfo::LocalTime(std::int_fast64_t unix_time, - const Transition& tr) const { - const TransitionType& tt = transition_types_[tr.type_index]; - // Note: (unix_time - tr.unix_time) will never overflow as we - // have ensured that there is always a "nearby" transition. - return {tr.civil_sec + (unix_time - tr.unix_time), // TODO: Optimize. - tt.utc_offset, tt.is_dst, &abbreviations_[tt.abbr_index]}; -} - -// MakeTime() translation with a conversion-preserving +N * 400-year shift. -time_zone::civil_lookup TimeZoneInfo::TimeLocal(const civil_second& cs, - year_t c4_shift) const { - assert(last_year_ - 400 < cs.year() && cs.year() <= last_year_); - time_zone::civil_lookup cl = MakeTime(cs); - if (c4_shift > seconds::max().count() / kSecsPer400Years) { - cl.pre = cl.trans = cl.post = time_point<seconds>::max(); - } else { - const auto offset = seconds(c4_shift * kSecsPer400Years); - const auto limit = time_point<seconds>::max() - offset; - for (auto* tp : {&cl.pre, &cl.trans, &cl.post}) { - if (*tp > limit) { - *tp = time_point<seconds>::max(); - } else { - *tp += offset; - } - } - } - return cl; -} - -time_zone::absolute_lookup TimeZoneInfo::BreakTime( - const time_point<seconds>& tp) const { - std::int_fast64_t unix_time = ToUnixSeconds(tp); - const std::size_t timecnt = transitions_.size(); - assert(timecnt != 0); // We always add a transition. - - if (unix_time < transitions_[0].unix_time) { - return LocalTime(unix_time, transition_types_[default_transition_type_]); - } - if (unix_time >= transitions_[timecnt - 1].unix_time) { - // After the last transition. If we extended the transitions using - // future_spec_, shift back to a supported year using the 400-year - // cycle of calendaric equivalence and then compensate accordingly. - if (extended_) { - const std::int_fast64_t diff = - unix_time - transitions_[timecnt - 1].unix_time; - const year_t shift = diff / kSecsPer400Years + 1; - const auto d = seconds(shift * kSecsPer400Years); - time_zone::absolute_lookup al = BreakTime(tp - d); - al.cs = YearShift(al.cs, shift * 400); - return al; - } - return LocalTime(unix_time, transitions_[timecnt - 1]); - } - - const std::size_t hint = local_time_hint_.load(std::memory_order_relaxed); - if (0 < hint && hint < timecnt) { - if (transitions_[hint - 1].unix_time <= unix_time) { - if (unix_time < transitions_[hint].unix_time) { - return LocalTime(unix_time, transitions_[hint - 1]); - } - } - } - - const Transition target = {unix_time, 0, civil_second(), civil_second()}; - const Transition* begin = &transitions_[0]; - const Transition* tr = std::upper_bound(begin, begin + timecnt, target, - Transition::ByUnixTime()); - local_time_hint_.store(static_cast<std::size_t>(tr - begin), - std::memory_order_relaxed); - return LocalTime(unix_time, *--tr); -} - -time_zone::civil_lookup TimeZoneInfo::MakeTime(const civil_second& cs) const { - const std::size_t timecnt = transitions_.size(); - assert(timecnt != 0); // We always add a transition. - - // Find the first transition after our target civil time. - const Transition* tr = nullptr; - const Transition* begin = &transitions_[0]; - const Transition* end = begin + timecnt; - if (cs < begin->civil_sec) { - tr = begin; - } else if (cs >= transitions_[timecnt - 1].civil_sec) { - tr = end; - } else { - const std::size_t hint = time_local_hint_.load(std::memory_order_relaxed); - if (0 < hint && hint < timecnt) { - if (transitions_[hint - 1].civil_sec <= cs) { - if (cs < transitions_[hint].civil_sec) { - tr = begin + hint; - } - } - } - if (tr == nullptr) { - const Transition target = {0, 0, cs, civil_second()}; - tr = std::upper_bound(begin, end, target, Transition::ByCivilTime()); - time_local_hint_.store(static_cast<std::size_t>(tr - begin), - std::memory_order_relaxed); - } - } - - if (tr == begin) { - if (tr->prev_civil_sec >= cs) { - // Before first transition, so use the default offset. - const TransitionType& tt(transition_types_[default_transition_type_]); - if (cs < tt.civil_min) return MakeUnique(time_point<seconds>::min()); - return MakeUnique(cs - (civil_second() + tt.utc_offset)); - } - // tr->prev_civil_sec < cs < tr->civil_sec - return MakeSkipped(*tr, cs); - } - - if (tr == end) { - if (cs > (--tr)->prev_civil_sec) { - // After the last transition. If we extended the transitions using - // future_spec_, shift back to a supported year using the 400-year - // cycle of calendaric equivalence and then compensate accordingly. - if (extended_ && cs.year() > last_year_) { - const year_t shift = (cs.year() - last_year_ - 1) / 400 + 1; - return TimeLocal(YearShift(cs, shift * -400), shift); - } - const TransitionType& tt(transition_types_[tr->type_index]); - if (cs > tt.civil_max) return MakeUnique(time_point<seconds>::max()); - return MakeUnique(tr->unix_time + (cs - tr->civil_sec)); - } - // tr->civil_sec <= cs <= tr->prev_civil_sec - return MakeRepeated(*tr, cs); - } - - if (tr->prev_civil_sec < cs) { - // tr->prev_civil_sec < cs < tr->civil_sec - return MakeSkipped(*tr, cs); - } - - if (cs <= (--tr)->prev_civil_sec) { - // tr->civil_sec <= cs <= tr->prev_civil_sec - return MakeRepeated(*tr, cs); - } - - // In between transitions. - return MakeUnique(tr->unix_time + (cs - tr->civil_sec)); -} - -std::string TimeZoneInfo::Version() const { return version_; } - -std::string TimeZoneInfo::Description() const { - std::ostringstream oss; - oss << "#trans=" << transitions_.size(); - oss << " #types=" << transition_types_.size(); - oss << " spec='" << future_spec_ << "'"; - return oss.str(); -} - -bool TimeZoneInfo::NextTransition(const time_point<seconds>& tp, - time_zone::civil_transition* trans) const { - if (transitions_.empty()) return false; - const Transition* begin = &transitions_[0]; - const Transition* end = begin + transitions_.size(); - if (begin->unix_time <= -(1LL << 59)) { - // Do not report the BIG_BANG found in recent zoneinfo data as it is - // really a sentinel, not a transition. See tz/zic.c. - ++begin; - } - std::int_fast64_t unix_time = ToUnixSeconds(tp); - const Transition target = {unix_time, 0, civil_second(), civil_second()}; - const Transition* tr = - std::upper_bound(begin, end, target, Transition::ByUnixTime()); - for (; tr != end; ++tr) { // skip no-op transitions - std::uint_fast8_t prev_type_index = - (tr == begin) ? default_transition_type_ : tr[-1].type_index; - if (!EquivTransitions(prev_type_index, tr[0].type_index)) break; - } - // When tr == end we return false, ignoring future_spec_. - if (tr == end) return false; - trans->from = tr->prev_civil_sec + 1; - trans->to = tr->civil_sec; - return true; -} - -bool TimeZoneInfo::PrevTransition(const time_point<seconds>& tp, - time_zone::civil_transition* trans) const { - if (transitions_.empty()) return false; - const Transition* begin = &transitions_[0]; - const Transition* end = begin + transitions_.size(); - if (begin->unix_time <= -(1LL << 59)) { - // Do not report the BIG_BANG found in recent zoneinfo data as it is - // really a sentinel, not a transition. See tz/zic.c. - ++begin; - } - std::int_fast64_t unix_time = ToUnixSeconds(tp); - if (FromUnixSeconds(unix_time) != tp) { - if (unix_time == std::numeric_limits<std::int_fast64_t>::max()) { - if (end == begin) return false; // Ignore future_spec_. - trans->from = (--end)->prev_civil_sec + 1; - trans->to = end->civil_sec; - return true; - } - unix_time += 1; // ceils - } - const Transition target = {unix_time, 0, civil_second(), civil_second()}; - const Transition* tr = - std::lower_bound(begin, end, target, Transition::ByUnixTime()); - for (; tr != begin; --tr) { // skip no-op transitions - std::uint_fast8_t prev_type_index = - (tr - 1 == begin) ? default_transition_type_ : tr[-2].type_index; - if (!EquivTransitions(prev_type_index, tr[-1].type_index)) break; - } - // When tr == end we return the "last" transition, ignoring future_spec_. - if (tr == begin) return false; - trans->from = (--tr)->prev_civil_sec + 1; - trans->to = tr->civil_sec; - return true; -} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_info.h b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_info.h deleted file mode 100644 index 2a10c06c77..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_info.h +++ /dev/null @@ -1,138 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_INFO_H_ -#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_INFO_H_ - -#include <atomic> -#include <cstddef> -#include <cstdint> -#include <string> -#include <vector> - -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/civil_time.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" -#include "absl/time/internal/cctz/include/cctz/zone_info_source.h" -#include "time_zone_if.h" -#include "tzfile.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -// A transition to a new UTC offset. -struct Transition { - std::int_least64_t unix_time; // the instant of this transition - std::uint_least8_t type_index; // index of the transition type - civil_second civil_sec; // local civil time of transition - civil_second prev_civil_sec; // local civil time one second earlier - - struct ByUnixTime { - inline bool operator()(const Transition& lhs, const Transition& rhs) const { - return lhs.unix_time < rhs.unix_time; - } - }; - struct ByCivilTime { - inline bool operator()(const Transition& lhs, const Transition& rhs) const { - return lhs.civil_sec < rhs.civil_sec; - } - }; -}; - -// The characteristics of a particular transition. -struct TransitionType { - std::int_least32_t utc_offset; // the new prevailing UTC offset - civil_second civil_max; // max convertible civil time for offset - civil_second civil_min; // min convertible civil time for offset - bool is_dst; // did we move into daylight-saving time - std::uint_least8_t abbr_index; // index of the new abbreviation -}; - -// A time zone backed by the IANA Time Zone Database (zoneinfo). -class TimeZoneInfo : public TimeZoneIf { - public: - TimeZoneInfo() = default; - TimeZoneInfo(const TimeZoneInfo&) = delete; - TimeZoneInfo& operator=(const TimeZoneInfo&) = delete; - - // Loads the zoneinfo for the given name, returning true if successful. - bool Load(const std::string& name); - - // TimeZoneIf implementations. - time_zone::absolute_lookup BreakTime( - const time_point<seconds>& tp) const override; - time_zone::civil_lookup MakeTime(const civil_second& cs) const override; - bool NextTransition(const time_point<seconds>& tp, - time_zone::civil_transition* trans) const override; - bool PrevTransition(const time_point<seconds>& tp, - time_zone::civil_transition* trans) const override; - std::string Version() const override; - std::string Description() const override; - - private: - struct Header { // counts of: - std::size_t timecnt; // transition times - std::size_t typecnt; // transition types - std::size_t charcnt; // zone abbreviation characters - std::size_t leapcnt; // leap seconds (we expect none) - std::size_t ttisstdcnt; // UTC/local indicators (unused) - std::size_t ttisutcnt; // standard/wall indicators (unused) - - bool Build(const tzhead& tzh); - std::size_t DataLength(std::size_t time_len) const; - }; - - void CheckTransition(const std::string& name, const TransitionType& tt, - std::int_fast32_t offset, bool is_dst, - const std::string& abbr) const; - bool EquivTransitions(std::uint_fast8_t tt1_index, - std::uint_fast8_t tt2_index) const; - void ExtendTransitions(const std::string& name, const Header& hdr); - - bool ResetToBuiltinUTC(const seconds& offset); - bool Load(const std::string& name, ZoneInfoSource* zip); - - // Helpers for BreakTime() and MakeTime(). - time_zone::absolute_lookup LocalTime(std::int_fast64_t unix_time, - const TransitionType& tt) const; - time_zone::absolute_lookup LocalTime(std::int_fast64_t unix_time, - const Transition& tr) const; - time_zone::civil_lookup TimeLocal(const civil_second& cs, - year_t c4_shift) const; - - std::vector<Transition> transitions_; // ordered by unix_time and civil_sec - std::vector<TransitionType> transition_types_; // distinct transition types - std::uint_fast8_t default_transition_type_; // for before first transition - std::string abbreviations_; // all the NUL-terminated abbreviations - - std::string version_; // the tzdata version if available - std::string future_spec_; // for after the last zic transition - bool extended_; // future_spec_ was used to generate transitions - year_t last_year_; // the final year of the generated transitions - - // We remember the transitions found during the last BreakTime() and - // MakeTime() calls. If the next request is for the same transition we - // will avoid re-searching. - mutable std::atomic<std::size_t> local_time_hint_ = {}; // BreakTime() hint - mutable std::atomic<std::size_t> time_local_hint_ = {}; // MakeTime() hint -}; - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_INFO_H_ diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_libc.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_libc.cc deleted file mode 100644 index 47cf84c663..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_libc.cc +++ /dev/null @@ -1,308 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#if defined(_WIN32) || defined(_WIN64) -#define _CRT_SECURE_NO_WARNINGS 1 -#endif - -#include "time_zone_libc.h" - -#include <chrono> -#include <ctime> -#include <limits> -#include <utility> - -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/civil_time.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -namespace { - -#if defined(_WIN32) || defined(_WIN64) -// Uses the globals: '_timezone', '_dstbias' and '_tzname'. -auto tm_gmtoff(const std::tm& tm) -> decltype(_timezone + _dstbias) { - const bool is_dst = tm.tm_isdst > 0; - return _timezone + (is_dst ? _dstbias : 0); -} -auto tm_zone(const std::tm& tm) -> decltype(_tzname[0]) { - const bool is_dst = tm.tm_isdst > 0; - return _tzname[is_dst]; -} -#elif defined(__sun) -// Uses the globals: 'timezone', 'altzone' and 'tzname'. -auto tm_gmtoff(const std::tm& tm) -> decltype(timezone) { - const bool is_dst = tm.tm_isdst > 0; - return is_dst ? altzone : timezone; -} -auto tm_zone(const std::tm& tm) -> decltype(tzname[0]) { - const bool is_dst = tm.tm_isdst > 0; - return tzname[is_dst]; -} -#elif defined(__native_client__) || defined(__myriad2__) || \ - defined(__EMSCRIPTEN__) -// Uses the globals: 'timezone' and 'tzname'. -auto tm_gmtoff(const std::tm& tm) -> decltype(_timezone + 0) { - const bool is_dst = tm.tm_isdst > 0; - return _timezone + (is_dst ? 60 * 60 : 0); -} -auto tm_zone(const std::tm& tm) -> decltype(tzname[0]) { - const bool is_dst = tm.tm_isdst > 0; - return tzname[is_dst]; -} -#else -// Adapt to different spellings of the struct std::tm extension fields. -#if defined(tm_gmtoff) -auto tm_gmtoff(const std::tm& tm) -> decltype(tm.tm_gmtoff) { - return tm.tm_gmtoff; -} -#elif defined(__tm_gmtoff) -auto tm_gmtoff(const std::tm& tm) -> decltype(tm.__tm_gmtoff) { - return tm.__tm_gmtoff; -} -#else -template <typename T> -auto tm_gmtoff(const T& tm) -> decltype(tm.tm_gmtoff) { - return tm.tm_gmtoff; -} -template <typename T> -auto tm_gmtoff(const T& tm) -> decltype(tm.__tm_gmtoff) { - return tm.__tm_gmtoff; -} -#endif // tm_gmtoff -#if defined(tm_zone) -auto tm_zone(const std::tm& tm) -> decltype(tm.tm_zone) { return tm.tm_zone; } -#elif defined(__tm_zone) -auto tm_zone(const std::tm& tm) -> decltype(tm.__tm_zone) { - return tm.__tm_zone; -} -#else -template <typename T> -auto tm_zone(const T& tm) -> decltype(tm.tm_zone) { - return tm.tm_zone; -} -template <typename T> -auto tm_zone(const T& tm) -> decltype(tm.__tm_zone) { - return tm.__tm_zone; -} -#endif // tm_zone -#endif - -inline std::tm* gm_time(const std::time_t* timep, std::tm* result) { -#if defined(_WIN32) || defined(_WIN64) - return gmtime_s(result, timep) ? nullptr : result; -#else - return gmtime_r(timep, result); -#endif -} - -inline std::tm* local_time(const std::time_t* timep, std::tm* result) { -#if defined(_WIN32) || defined(_WIN64) - return localtime_s(result, timep) ? nullptr : result; -#else - return localtime_r(timep, result); -#endif -} - -// Converts a civil second and "dst" flag into a time_t and UTC offset. -// Returns false if time_t cannot represent the requested civil second. -// Caller must have already checked that cs.year() will fit into a tm_year. -bool make_time(const civil_second& cs, int is_dst, std::time_t* t, int* off) { - std::tm tm; - tm.tm_year = static_cast<int>(cs.year() - year_t{1900}); - tm.tm_mon = cs.month() - 1; - tm.tm_mday = cs.day(); - tm.tm_hour = cs.hour(); - tm.tm_min = cs.minute(); - tm.tm_sec = cs.second(); - tm.tm_isdst = is_dst; - *t = std::mktime(&tm); - if (*t == std::time_t{-1}) { - std::tm tm2; - const std::tm* tmp = local_time(t, &tm2); - if (tmp == nullptr || tmp->tm_year != tm.tm_year || - tmp->tm_mon != tm.tm_mon || tmp->tm_mday != tm.tm_mday || - tmp->tm_hour != tm.tm_hour || tmp->tm_min != tm.tm_min || - tmp->tm_sec != tm.tm_sec) { - // A true error (not just one second before the epoch). - return false; - } - } - *off = static_cast<int>(tm_gmtoff(tm)); - return true; -} - -// Find the least time_t in [lo:hi] where local time matches offset, given: -// (1) lo doesn't match, (2) hi does, and (3) there is only one transition. -std::time_t find_trans(std::time_t lo, std::time_t hi, int offset) { - std::tm tm; - while (lo + 1 != hi) { - const std::time_t mid = lo + (hi - lo) / 2; - if (std::tm* tmp = local_time(&mid, &tm)) { - if (tm_gmtoff(*tmp) == offset) { - hi = mid; - } else { - lo = mid; - } - } else { - // If std::tm cannot hold some result we resort to a linear search, - // ignoring all failed conversions. Slow, but never really happens. - while (++lo != hi) { - if (std::tm* tmp = local_time(&lo, &tm)) { - if (tm_gmtoff(*tmp) == offset) break; - } - } - return lo; - } - } - return hi; -} - -} // namespace - -TimeZoneLibC::TimeZoneLibC(const std::string& name) - : local_(name == "localtime") {} - -time_zone::absolute_lookup TimeZoneLibC::BreakTime( - const time_point<seconds>& tp) const { - time_zone::absolute_lookup al; - al.offset = 0; - al.is_dst = false; - al.abbr = "-00"; - - const std::int_fast64_t s = ToUnixSeconds(tp); - - // If std::time_t cannot hold the input we saturate the output. - if (s < std::numeric_limits<std::time_t>::min()) { - al.cs = civil_second::min(); - return al; - } - if (s > std::numeric_limits<std::time_t>::max()) { - al.cs = civil_second::max(); - return al; - } - - const std::time_t t = static_cast<std::time_t>(s); - std::tm tm; - std::tm* tmp = local_ ? local_time(&t, &tm) : gm_time(&t, &tm); - - // If std::tm cannot hold the result we saturate the output. - if (tmp == nullptr) { - al.cs = (s < 0) ? civil_second::min() : civil_second::max(); - return al; - } - - const year_t year = tmp->tm_year + year_t{1900}; - al.cs = civil_second(year, tmp->tm_mon + 1, tmp->tm_mday, tmp->tm_hour, - tmp->tm_min, tmp->tm_sec); - al.offset = static_cast<int>(tm_gmtoff(*tmp)); - al.abbr = local_ ? tm_zone(*tmp) : "UTC"; // as expected by cctz - al.is_dst = tmp->tm_isdst > 0; - return al; -} - -time_zone::civil_lookup TimeZoneLibC::MakeTime(const civil_second& cs) const { - if (!local_) { - // If time_point<seconds> cannot hold the result we saturate. - static const civil_second min_tp_cs = - civil_second() + ToUnixSeconds(time_point<seconds>::min()); - static const civil_second max_tp_cs = - civil_second() + ToUnixSeconds(time_point<seconds>::max()); - const time_point<seconds> tp = - (cs < min_tp_cs) - ? time_point<seconds>::min() - : (cs > max_tp_cs) ? time_point<seconds>::max() - : FromUnixSeconds(cs - civil_second()); - return {time_zone::civil_lookup::UNIQUE, tp, tp, tp}; - } - - // If tm_year cannot hold the requested year we saturate the result. - if (cs.year() < 0) { - if (cs.year() < std::numeric_limits<int>::min() + year_t{1900}) { - const time_point<seconds> tp = time_point<seconds>::min(); - return {time_zone::civil_lookup::UNIQUE, tp, tp, tp}; - } - } else { - if (cs.year() - year_t{1900} > std::numeric_limits<int>::max()) { - const time_point<seconds> tp = time_point<seconds>::max(); - return {time_zone::civil_lookup::UNIQUE, tp, tp, tp}; - } - } - - // We probe with "is_dst" values of 0 and 1 to try to distinguish unique - // civil seconds from skipped or repeated ones. This is not always possible - // however, as the "dst" flag does not change over some offset transitions. - // We are also subject to the vagaries of mktime() implementations. - std::time_t t0, t1; - int offset0, offset1; - if (make_time(cs, 0, &t0, &offset0) && make_time(cs, 1, &t1, &offset1)) { - if (t0 == t1) { - // The civil time was singular (pre == trans == post). - const time_point<seconds> tp = FromUnixSeconds(t0); - return {time_zone::civil_lookup::UNIQUE, tp, tp, tp}; - } - - if (t0 > t1) { - std::swap(t0, t1); - std::swap(offset0, offset1); - } - const std::time_t tt = find_trans(t0, t1, offset1); - const time_point<seconds> trans = FromUnixSeconds(tt); - - if (offset0 < offset1) { - // The civil time did not exist (pre >= trans > post). - const time_point<seconds> pre = FromUnixSeconds(t1); - const time_point<seconds> post = FromUnixSeconds(t0); - return {time_zone::civil_lookup::SKIPPED, pre, trans, post}; - } - - // The civil time was ambiguous (pre < trans <= post). - const time_point<seconds> pre = FromUnixSeconds(t0); - const time_point<seconds> post = FromUnixSeconds(t1); - return {time_zone::civil_lookup::REPEATED, pre, trans, post}; - } - - // make_time() failed somehow so we saturate the result. - const time_point<seconds> tp = (cs < civil_second()) - ? time_point<seconds>::min() - : time_point<seconds>::max(); - return {time_zone::civil_lookup::UNIQUE, tp, tp, tp}; -} - -bool TimeZoneLibC::NextTransition(const time_point<seconds>&, - time_zone::civil_transition*) const { - return false; -} - -bool TimeZoneLibC::PrevTransition(const time_point<seconds>&, - time_zone::civil_transition*) const { - return false; -} - -std::string TimeZoneLibC::Version() const { - return std::string(); // unknown -} - -std::string TimeZoneLibC::Description() const { - return local_ ? "localtime" : "UTC"; -} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_libc.h b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_libc.h deleted file mode 100644 index 1da9039a15..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_libc.h +++ /dev/null @@ -1,55 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_LIBC_H_ -#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_LIBC_H_ - -#include <string> - -#include "absl/base/config.h" -#include "time_zone_if.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -// A time zone backed by gmtime_r(3), localtime_r(3), and mktime(3), -// and which therefore only supports UTC and the local time zone. -// TODO: Add support for fixed offsets from UTC. -class TimeZoneLibC : public TimeZoneIf { - public: - explicit TimeZoneLibC(const std::string& name); - - // TimeZoneIf implementations. - time_zone::absolute_lookup BreakTime( - const time_point<seconds>& tp) const override; - time_zone::civil_lookup MakeTime(const civil_second& cs) const override; - bool NextTransition(const time_point<seconds>& tp, - time_zone::civil_transition* trans) const override; - bool PrevTransition(const time_point<seconds>& tp, - time_zone::civil_transition* trans) const override; - std::string Version() const override; - std::string Description() const override; - - private: - const bool local_; // localtime or UTC -}; - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_LIBC_H_ diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_lookup.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_lookup.cc deleted file mode 100644 index efdea64b4e..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_lookup.cc +++ /dev/null @@ -1,187 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" - -#if defined(__ANDROID__) -#include <sys/system_properties.h> -#if defined(__ANDROID_API__) && __ANDROID_API__ >= 21 -#include <dlfcn.h> -#endif -#endif - -#if defined(__APPLE__) -#include <CoreFoundation/CFTimeZone.h> - -#include <vector> -#endif - -#include <cstdlib> -#include <cstring> -#include <string> - -#include "time_zone_fixed.h" -#include "time_zone_impl.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -#if defined(__ANDROID__) && defined(__ANDROID_API__) && __ANDROID_API__ >= 21 -namespace { -// Android 'L' removes __system_property_get() from the NDK, however -// it is still a hidden symbol in libc so we use dlsym() to access it. -// See Chromium's base/sys_info_android.cc for a similar example. - -using property_get_func = int (*)(const char*, char*); - -property_get_func LoadSystemPropertyGet() { - int flag = RTLD_LAZY | RTLD_GLOBAL; -#if defined(RTLD_NOLOAD) - flag |= RTLD_NOLOAD; // libc.so should already be resident -#endif - if (void* handle = dlopen("libc.so", flag)) { - void* sym = dlsym(handle, "__system_property_get"); - dlclose(handle); - return reinterpret_cast<property_get_func>(sym); - } - return nullptr; -} - -int __system_property_get(const char* name, char* value) { - static property_get_func system_property_get = LoadSystemPropertyGet(); - return system_property_get ? system_property_get(name, value) : -1; -} - -} // namespace -#endif - -std::string time_zone::name() const { return effective_impl().Name(); } - -time_zone::absolute_lookup time_zone::lookup( - const time_point<seconds>& tp) const { - return effective_impl().BreakTime(tp); -} - -time_zone::civil_lookup time_zone::lookup(const civil_second& cs) const { - return effective_impl().MakeTime(cs); -} - -bool time_zone::next_transition(const time_point<seconds>& tp, - civil_transition* trans) const { - return effective_impl().NextTransition(tp, trans); -} - -bool time_zone::prev_transition(const time_point<seconds>& tp, - civil_transition* trans) const { - return effective_impl().PrevTransition(tp, trans); -} - -std::string time_zone::version() const { return effective_impl().Version(); } - -std::string time_zone::description() const { - return effective_impl().Description(); -} - -const time_zone::Impl& time_zone::effective_impl() const { - if (impl_ == nullptr) { - // Dereferencing an implicit-UTC time_zone is expected to be - // rare, so we don't mind paying a small synchronization cost. - return *time_zone::Impl::UTC().impl_; - } - return *impl_; -} - -bool load_time_zone(const std::string& name, time_zone* tz) { - return time_zone::Impl::LoadTimeZone(name, tz); -} - -time_zone utc_time_zone() { - return time_zone::Impl::UTC(); // avoid name lookup -} - -time_zone fixed_time_zone(const seconds& offset) { - time_zone tz; - load_time_zone(FixedOffsetToName(offset), &tz); - return tz; -} - -time_zone local_time_zone() { - const char* zone = ":localtime"; -#if defined(__ANDROID__) - char sysprop[PROP_VALUE_MAX]; - if (__system_property_get("persist.sys.timezone", sysprop) > 0) { - zone = sysprop; - } -#endif -#if defined(__APPLE__) - std::vector<char> buffer; - CFTimeZoneRef tz_default = CFTimeZoneCopyDefault(); - if (CFStringRef tz_name = CFTimeZoneGetName(tz_default)) { - CFStringEncoding encoding = kCFStringEncodingUTF8; - CFIndex length = CFStringGetLength(tz_name); - buffer.resize(CFStringGetMaximumSizeForEncoding(length, encoding) + 1); - if (CFStringGetCString(tz_name, &buffer[0], buffer.size(), encoding)) { - zone = &buffer[0]; - } - } - CFRelease(tz_default); -#endif - - // Allow ${TZ} to override to default zone. - char* tz_env = nullptr; -#if defined(_MSC_VER) - _dupenv_s(&tz_env, nullptr, "TZ"); -#else - tz_env = std::getenv("TZ"); -#endif - if (tz_env) zone = tz_env; - - // We only support the "[:]<zone-name>" form. - if (*zone == ':') ++zone; - - // Map "localtime" to a system-specific name, but - // allow ${LOCALTIME} to override the default name. - char* localtime_env = nullptr; - if (strcmp(zone, "localtime") == 0) { -#if defined(_MSC_VER) - // System-specific default is just "localtime". - _dupenv_s(&localtime_env, nullptr, "LOCALTIME"); -#else - zone = "/etc/localtime"; // System-specific default. - localtime_env = std::getenv("LOCALTIME"); -#endif - if (localtime_env) zone = localtime_env; - } - - const std::string name = zone; -#if defined(_MSC_VER) - free(localtime_env); - free(tz_env); -#endif - - time_zone tz; - load_time_zone(name, &tz); // Falls back to UTC. - // TODO: Follow the RFC3339 "Unknown Local Offset Convention" and - // arrange for %z to generate "-0000" when we don't know the local - // offset because the load_time_zone() failed and we're using UTC. - return tz; -} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_lookup_test.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_lookup_test.cc deleted file mode 100644 index 8f7ab154fa..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_lookup_test.cc +++ /dev/null @@ -1,1438 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include <chrono> -#include <cstddef> -#include <cstdlib> -#include <future> -#include <limits> -#include <string> -#include <thread> -#include <vector> - -#include "gtest/gtest.h" -#include "absl/base/config.h" -#include "absl/time/internal/cctz/include/cctz/civil_time.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" - -namespace chrono = std::chrono; - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -namespace { - -// A list of known time-zone names. -const char* const kTimeZoneNames[] = {"Africa/Abidjan", - "Africa/Accra", - "Africa/Addis_Ababa", - "Africa/Algiers", - "Africa/Asmara", - "Africa/Asmera", - "Africa/Bamako", - "Africa/Bangui", - "Africa/Banjul", - "Africa/Bissau", - "Africa/Blantyre", - "Africa/Brazzaville", - "Africa/Bujumbura", - "Africa/Cairo", - "Africa/Casablanca", - "Africa/Ceuta", - "Africa/Conakry", - "Africa/Dakar", - "Africa/Dar_es_Salaam", - "Africa/Djibouti", - "Africa/Douala", - "Africa/El_Aaiun", - "Africa/Freetown", - "Africa/Gaborone", - "Africa/Harare", - "Africa/Johannesburg", - "Africa/Juba", - "Africa/Kampala", - "Africa/Khartoum", - "Africa/Kigali", - "Africa/Kinshasa", - "Africa/Lagos", - "Africa/Libreville", - "Africa/Lome", - "Africa/Luanda", - "Africa/Lubumbashi", - "Africa/Lusaka", - "Africa/Malabo", - "Africa/Maputo", - "Africa/Maseru", - "Africa/Mbabane", - "Africa/Mogadishu", - "Africa/Monrovia", - "Africa/Nairobi", - "Africa/Ndjamena", - "Africa/Niamey", - "Africa/Nouakchott", - "Africa/Ouagadougou", - "Africa/Porto-Novo", - "Africa/Sao_Tome", - "Africa/Timbuktu", - "Africa/Tripoli", - "Africa/Tunis", - "Africa/Windhoek", - "America/Adak", - "America/Anchorage", - "America/Anguilla", - "America/Antigua", - "America/Araguaina", - "America/Argentina/Buenos_Aires", - "America/Argentina/Catamarca", - "America/Argentina/ComodRivadavia", - "America/Argentina/Cordoba", - "America/Argentina/Jujuy", - "America/Argentina/La_Rioja", - "America/Argentina/Mendoza", - "America/Argentina/Rio_Gallegos", - "America/Argentina/Salta", - "America/Argentina/San_Juan", - "America/Argentina/San_Luis", - "America/Argentina/Tucuman", - "America/Argentina/Ushuaia", - "America/Aruba", - "America/Asuncion", - "America/Atikokan", - "America/Atka", - "America/Bahia", - "America/Bahia_Banderas", - "America/Barbados", - "America/Belem", - "America/Belize", - "America/Blanc-Sablon", - "America/Boa_Vista", - "America/Bogota", - "America/Boise", - "America/Buenos_Aires", - "America/Cambridge_Bay", - "America/Campo_Grande", - "America/Cancun", - "America/Caracas", - "America/Catamarca", - "America/Cayenne", - "America/Cayman", - "America/Chicago", - "America/Chihuahua", - "America/Coral_Harbour", - "America/Cordoba", - "America/Costa_Rica", - "America/Creston", - "America/Cuiaba", - "America/Curacao", - "America/Danmarkshavn", - "America/Dawson", - "America/Dawson_Creek", - "America/Denver", - "America/Detroit", - "America/Dominica", - "America/Edmonton", - "America/Eirunepe", - "America/El_Salvador", - "America/Ensenada", - "America/Fort_Nelson", - "America/Fort_Wayne", - "America/Fortaleza", - "America/Glace_Bay", - "America/Godthab", - "America/Goose_Bay", - "America/Grand_Turk", - "America/Grenada", - "America/Guadeloupe", - "America/Guatemala", - "America/Guayaquil", - "America/Guyana", - "America/Halifax", - "America/Havana", - "America/Hermosillo", - "America/Indiana/Indianapolis", - "America/Indiana/Knox", - "America/Indiana/Marengo", - "America/Indiana/Petersburg", - "America/Indiana/Tell_City", - "America/Indiana/Vevay", - "America/Indiana/Vincennes", - "America/Indiana/Winamac", - "America/Indianapolis", - "America/Inuvik", - "America/Iqaluit", - "America/Jamaica", - "America/Jujuy", - "America/Juneau", - "America/Kentucky/Louisville", - "America/Kentucky/Monticello", - "America/Knox_IN", - "America/Kralendijk", - "America/La_Paz", - "America/Lima", - "America/Los_Angeles", - "America/Louisville", - "America/Lower_Princes", - "America/Maceio", - "America/Managua", - "America/Manaus", - "America/Marigot", - "America/Martinique", - "America/Matamoros", - "America/Mazatlan", - "America/Mendoza", - "America/Menominee", - "America/Merida", - "America/Metlakatla", - "America/Mexico_City", - "America/Miquelon", - "America/Moncton", - "America/Monterrey", - "America/Montevideo", - "America/Montreal", - "America/Montserrat", - "America/Nassau", - "America/New_York", - "America/Nipigon", - "America/Nome", - "America/Noronha", - "America/North_Dakota/Beulah", - "America/North_Dakota/Center", - "America/North_Dakota/New_Salem", - "America/Nuuk", - "America/Ojinaga", - "America/Panama", - "America/Pangnirtung", - "America/Paramaribo", - "America/Phoenix", - "America/Port-au-Prince", - "America/Port_of_Spain", - "America/Porto_Acre", - "America/Porto_Velho", - "America/Puerto_Rico", - "America/Punta_Arenas", - "America/Rainy_River", - "America/Rankin_Inlet", - "America/Recife", - "America/Regina", - "America/Resolute", - "America/Rio_Branco", - "America/Rosario", - "America/Santa_Isabel", - "America/Santarem", - "America/Santiago", - "America/Santo_Domingo", - "America/Sao_Paulo", - "America/Scoresbysund", - "America/Shiprock", - "America/Sitka", - "America/St_Barthelemy", - "America/St_Johns", - "America/St_Kitts", - "America/St_Lucia", - "America/St_Thomas", - "America/St_Vincent", - "America/Swift_Current", - "America/Tegucigalpa", - "America/Thule", - "America/Thunder_Bay", - "America/Tijuana", - "America/Toronto", - "America/Tortola", - "America/Vancouver", - "America/Virgin", - "America/Whitehorse", - "America/Winnipeg", - "America/Yakutat", - "America/Yellowknife", - "Antarctica/Casey", - "Antarctica/Davis", - "Antarctica/DumontDUrville", - "Antarctica/Macquarie", - "Antarctica/Mawson", - "Antarctica/McMurdo", - "Antarctica/Palmer", - "Antarctica/Rothera", - "Antarctica/South_Pole", - "Antarctica/Syowa", - "Antarctica/Troll", - "Antarctica/Vostok", - "Arctic/Longyearbyen", - "Asia/Aden", - "Asia/Almaty", - "Asia/Amman", - "Asia/Anadyr", - "Asia/Aqtau", - "Asia/Aqtobe", - "Asia/Ashgabat", - "Asia/Ashkhabad", - "Asia/Atyrau", - "Asia/Baghdad", - "Asia/Bahrain", - "Asia/Baku", - "Asia/Bangkok", - "Asia/Barnaul", - "Asia/Beirut", - "Asia/Bishkek", - "Asia/Brunei", - "Asia/Calcutta", - "Asia/Chita", - "Asia/Choibalsan", - "Asia/Chongqing", - "Asia/Chungking", - "Asia/Colombo", - "Asia/Dacca", - "Asia/Damascus", - "Asia/Dhaka", - "Asia/Dili", - "Asia/Dubai", - "Asia/Dushanbe", - "Asia/Famagusta", - "Asia/Gaza", - "Asia/Harbin", - "Asia/Hebron", - "Asia/Ho_Chi_Minh", - "Asia/Hong_Kong", - "Asia/Hovd", - "Asia/Irkutsk", - "Asia/Istanbul", - "Asia/Jakarta", - "Asia/Jayapura", - "Asia/Jerusalem", - "Asia/Kabul", - "Asia/Kamchatka", - "Asia/Karachi", - "Asia/Kashgar", - "Asia/Kathmandu", - "Asia/Katmandu", - "Asia/Khandyga", - "Asia/Kolkata", - "Asia/Krasnoyarsk", - "Asia/Kuala_Lumpur", - "Asia/Kuching", - "Asia/Kuwait", - "Asia/Macao", - "Asia/Macau", - "Asia/Magadan", - "Asia/Makassar", - "Asia/Manila", - "Asia/Muscat", - "Asia/Nicosia", - "Asia/Novokuznetsk", - "Asia/Novosibirsk", - "Asia/Omsk", - "Asia/Oral", - "Asia/Phnom_Penh", - "Asia/Pontianak", - "Asia/Pyongyang", - "Asia/Qatar", - "Asia/Qostanay", - "Asia/Qyzylorda", - "Asia/Rangoon", - "Asia/Riyadh", - "Asia/Saigon", - "Asia/Sakhalin", - "Asia/Samarkand", - "Asia/Seoul", - "Asia/Shanghai", - "Asia/Singapore", - "Asia/Srednekolymsk", - "Asia/Taipei", - "Asia/Tashkent", - "Asia/Tbilisi", - "Asia/Tehran", - "Asia/Tel_Aviv", - "Asia/Thimbu", - "Asia/Thimphu", - "Asia/Tokyo", - "Asia/Tomsk", - "Asia/Ujung_Pandang", - "Asia/Ulaanbaatar", - "Asia/Ulan_Bator", - "Asia/Urumqi", - "Asia/Ust-Nera", - "Asia/Vientiane", - "Asia/Vladivostok", - "Asia/Yakutsk", - "Asia/Yangon", - "Asia/Yekaterinburg", - "Asia/Yerevan", - "Atlantic/Azores", - "Atlantic/Bermuda", - "Atlantic/Canary", - "Atlantic/Cape_Verde", - "Atlantic/Faeroe", - "Atlantic/Faroe", - "Atlantic/Jan_Mayen", - "Atlantic/Madeira", - "Atlantic/Reykjavik", - "Atlantic/South_Georgia", - "Atlantic/St_Helena", - "Atlantic/Stanley", - "Australia/ACT", - "Australia/Adelaide", - "Australia/Brisbane", - "Australia/Broken_Hill", - "Australia/Canberra", - "Australia/Currie", - "Australia/Darwin", - "Australia/Eucla", - "Australia/Hobart", - "Australia/LHI", - "Australia/Lindeman", - "Australia/Lord_Howe", - "Australia/Melbourne", - "Australia/NSW", - "Australia/North", - "Australia/Perth", - "Australia/Queensland", - "Australia/South", - "Australia/Sydney", - "Australia/Tasmania", - "Australia/Victoria", - "Australia/West", - "Australia/Yancowinna", - "Brazil/Acre", - "Brazil/DeNoronha", - "Brazil/East", - "Brazil/West", - "CET", - "CST6CDT", - "Canada/Atlantic", - "Canada/Central", - "Canada/Eastern", - "Canada/Mountain", - "Canada/Newfoundland", - "Canada/Pacific", - "Canada/Saskatchewan", - "Canada/Yukon", - "Chile/Continental", - "Chile/EasterIsland", - "Cuba", - "EET", - "EST", - "EST5EDT", - "Egypt", - "Eire", - "Etc/GMT", - "Etc/GMT+0", - "Etc/GMT+1", - "Etc/GMT+10", - "Etc/GMT+11", - "Etc/GMT+12", - "Etc/GMT+2", - "Etc/GMT+3", - "Etc/GMT+4", - "Etc/GMT+5", - "Etc/GMT+6", - "Etc/GMT+7", - "Etc/GMT+8", - "Etc/GMT+9", - "Etc/GMT-0", - "Etc/GMT-1", - "Etc/GMT-10", - "Etc/GMT-11", - "Etc/GMT-12", - "Etc/GMT-13", - "Etc/GMT-14", - "Etc/GMT-2", - "Etc/GMT-3", - "Etc/GMT-4", - "Etc/GMT-5", - "Etc/GMT-6", - "Etc/GMT-7", - "Etc/GMT-8", - "Etc/GMT-9", - "Etc/GMT0", - "Etc/Greenwich", - "Etc/UCT", - "Etc/UTC", - "Etc/Universal", - "Etc/Zulu", - "Europe/Amsterdam", - "Europe/Andorra", - "Europe/Astrakhan", - "Europe/Athens", - "Europe/Belfast", - "Europe/Belgrade", - "Europe/Berlin", - "Europe/Bratislava", - "Europe/Brussels", - "Europe/Bucharest", - "Europe/Budapest", - "Europe/Busingen", - "Europe/Chisinau", - "Europe/Copenhagen", - "Europe/Dublin", - "Europe/Gibraltar", - "Europe/Guernsey", - "Europe/Helsinki", - "Europe/Isle_of_Man", - "Europe/Istanbul", - "Europe/Jersey", - "Europe/Kaliningrad", - "Europe/Kiev", - "Europe/Kirov", - "Europe/Lisbon", - "Europe/Ljubljana", - "Europe/London", - "Europe/Luxembourg", - "Europe/Madrid", - "Europe/Malta", - "Europe/Mariehamn", - "Europe/Minsk", - "Europe/Monaco", - "Europe/Moscow", - "Europe/Nicosia", - "Europe/Oslo", - "Europe/Paris", - "Europe/Podgorica", - "Europe/Prague", - "Europe/Riga", - "Europe/Rome", - "Europe/Samara", - "Europe/San_Marino", - "Europe/Sarajevo", - "Europe/Saratov", - "Europe/Simferopol", - "Europe/Skopje", - "Europe/Sofia", - "Europe/Stockholm", - "Europe/Tallinn", - "Europe/Tirane", - "Europe/Tiraspol", - "Europe/Ulyanovsk", - "Europe/Uzhgorod", - "Europe/Vaduz", - "Europe/Vatican", - "Europe/Vienna", - "Europe/Vilnius", - "Europe/Volgograd", - "Europe/Warsaw", - "Europe/Zagreb", - "Europe/Zaporozhye", - "Europe/Zurich", - "GB", - "GB-Eire", - "GMT", - "GMT+0", - "GMT-0", - "GMT0", - "Greenwich", - "HST", - "Hongkong", - "Iceland", - "Indian/Antananarivo", - "Indian/Chagos", - "Indian/Christmas", - "Indian/Cocos", - "Indian/Comoro", - "Indian/Kerguelen", - "Indian/Mahe", - "Indian/Maldives", - "Indian/Mauritius", - "Indian/Mayotte", - "Indian/Reunion", - "Iran", - "Israel", - "Jamaica", - "Japan", - "Kwajalein", - "Libya", - "MET", - "MST", - "MST7MDT", - "Mexico/BajaNorte", - "Mexico/BajaSur", - "Mexico/General", - "NZ", - "NZ-CHAT", - "Navajo", - "PRC", - "PST8PDT", - "Pacific/Apia", - "Pacific/Auckland", - "Pacific/Bougainville", - "Pacific/Chatham", - "Pacific/Chuuk", - "Pacific/Easter", - "Pacific/Efate", - "Pacific/Enderbury", - "Pacific/Fakaofo", - "Pacific/Fiji", - "Pacific/Funafuti", - "Pacific/Galapagos", - "Pacific/Gambier", - "Pacific/Guadalcanal", - "Pacific/Guam", - "Pacific/Honolulu", - "Pacific/Johnston", - "Pacific/Kiritimati", - "Pacific/Kosrae", - "Pacific/Kwajalein", - "Pacific/Majuro", - "Pacific/Marquesas", - "Pacific/Midway", - "Pacific/Nauru", - "Pacific/Niue", - "Pacific/Norfolk", - "Pacific/Noumea", - "Pacific/Pago_Pago", - "Pacific/Palau", - "Pacific/Pitcairn", - "Pacific/Pohnpei", - "Pacific/Ponape", - "Pacific/Port_Moresby", - "Pacific/Rarotonga", - "Pacific/Saipan", - "Pacific/Samoa", - "Pacific/Tahiti", - "Pacific/Tarawa", - "Pacific/Tongatapu", - "Pacific/Truk", - "Pacific/Wake", - "Pacific/Wallis", - "Pacific/Yap", - "Poland", - "Portugal", - "ROC", - "ROK", - "Singapore", - "Turkey", - "UCT", - "US/Alaska", - "US/Aleutian", - "US/Arizona", - "US/Central", - "US/East-Indiana", - "US/Eastern", - "US/Hawaii", - "US/Indiana-Starke", - "US/Michigan", - "US/Mountain", - "US/Pacific", - "US/Samoa", - "UTC", - "Universal", - "W-SU", - "WET", - "Zulu", - nullptr}; - -// Helper to return a loaded time zone by value (UTC on error). -time_zone LoadZone(const std::string& name) { - time_zone tz; - load_time_zone(name, &tz); - return tz; -} - -// This helper is a macro so that failed expectations show up with the -// correct line numbers. -#define ExpectTime(tp, tz, y, m, d, hh, mm, ss, off, isdst, zone) \ - do { \ - time_zone::absolute_lookup al = tz.lookup(tp); \ - EXPECT_EQ(y, al.cs.year()); \ - EXPECT_EQ(m, al.cs.month()); \ - EXPECT_EQ(d, al.cs.day()); \ - EXPECT_EQ(hh, al.cs.hour()); \ - EXPECT_EQ(mm, al.cs.minute()); \ - EXPECT_EQ(ss, al.cs.second()); \ - EXPECT_EQ(off, al.offset); \ - EXPECT_TRUE(isdst == al.is_dst); \ - /* EXPECT_STREQ(zone, al.abbr); */ \ - } while (0) - -// These tests sometimes run on platforms that have zoneinfo data so old -// that the transition we are attempting to check does not exist, most -// notably Android emulators. Fortunately, AndroidZoneInfoSource supports -// time_zone::version() so, in cases where we've learned that it matters, -// we can make the check conditionally. -int VersionCmp(time_zone tz, const std::string& target) { - std::string version = tz.version(); - if (version.empty() && !target.empty()) return 1; // unknown > known - return version.compare(target); -} - -} // namespace - -#if !defined(__EMSCRIPTEN__) -TEST(TimeZones, LoadZonesConcurrently) { - std::promise<void> ready_promise; - std::shared_future<void> ready_future(ready_promise.get_future()); - auto load_zones = [ready_future](std::promise<void>* started, - std::set<std::string>* failures) { - started->set_value(); - ready_future.wait(); - for (const char* const* np = kTimeZoneNames; *np != nullptr; ++np) { - std::string zone = *np; - time_zone tz; - if (load_time_zone(zone, &tz)) { - EXPECT_EQ(zone, tz.name()); - } else { - failures->insert(zone); - } - } - }; - - const std::size_t n_threads = 128; - std::vector<std::thread> threads; - std::vector<std::set<std::string>> thread_failures(n_threads); - for (std::size_t i = 0; i != n_threads; ++i) { - std::promise<void> started; - threads.emplace_back(load_zones, &started, &thread_failures[i]); - started.get_future().wait(); - } - ready_promise.set_value(); - for (auto& thread : threads) { - thread.join(); - } - - // Allow a small number of failures to account for skew between - // the contents of kTimeZoneNames and the zoneinfo data source. -#if defined(__ANDROID__) - // Cater to the possibility of using an even older zoneinfo data - // source when running on Android, where it is difficult to override - // the bionic tzdata provided by the test environment. - const std::size_t max_failures = 20; -#else - const std::size_t max_failures = 3; -#endif - std::set<std::string> failures; - for (const auto& thread_failure : thread_failures) { - failures.insert(thread_failure.begin(), thread_failure.end()); - } - EXPECT_LE(failures.size(), max_failures) << testing::PrintToString(failures); -} -#endif - -TEST(TimeZone, NamedTimeZones) { - const time_zone utc = utc_time_zone(); - EXPECT_EQ("UTC", utc.name()); - const time_zone nyc = LoadZone("America/New_York"); - EXPECT_EQ("America/New_York", nyc.name()); - const time_zone syd = LoadZone("Australia/Sydney"); - EXPECT_EQ("Australia/Sydney", syd.name()); - const time_zone fixed0 = - fixed_time_zone(absl::time_internal::cctz::seconds::zero()); - EXPECT_EQ("UTC", fixed0.name()); - const time_zone fixed_pos = fixed_time_zone( - chrono::hours(3) + chrono::minutes(25) + chrono::seconds(45)); - EXPECT_EQ("Fixed/UTC+03:25:45", fixed_pos.name()); - const time_zone fixed_neg = fixed_time_zone( - -(chrono::hours(12) + chrono::minutes(34) + chrono::seconds(56))); - EXPECT_EQ("Fixed/UTC-12:34:56", fixed_neg.name()); -} - -TEST(TimeZone, Failures) { - time_zone tz; - EXPECT_FALSE(load_time_zone(":America/Los_Angeles", &tz)); - - tz = LoadZone("America/Los_Angeles"); - EXPECT_FALSE(load_time_zone("Invalid/TimeZone", &tz)); - EXPECT_EQ(chrono::system_clock::from_time_t(0), - convert(civil_second(1970, 1, 1, 0, 0, 0), tz)); // UTC - - // Ensures that the load still fails on a subsequent attempt. - tz = LoadZone("America/Los_Angeles"); - EXPECT_FALSE(load_time_zone("Invalid/TimeZone", &tz)); - EXPECT_EQ(chrono::system_clock::from_time_t(0), - convert(civil_second(1970, 1, 1, 0, 0, 0), tz)); // UTC - - // Loading an empty string timezone should fail. - tz = LoadZone("America/Los_Angeles"); - EXPECT_FALSE(load_time_zone("", &tz)); - EXPECT_EQ(chrono::system_clock::from_time_t(0), - convert(civil_second(1970, 1, 1, 0, 0, 0), tz)); // UTC -} - -TEST(TimeZone, Equality) { - const time_zone a; - const time_zone b; - EXPECT_EQ(a, b); - EXPECT_EQ(a.name(), b.name()); - - const time_zone implicit_utc; - const time_zone explicit_utc = utc_time_zone(); - EXPECT_EQ(implicit_utc, explicit_utc); - EXPECT_EQ(implicit_utc.name(), explicit_utc.name()); - - const time_zone fixed_zero = - fixed_time_zone(absl::time_internal::cctz::seconds::zero()); - EXPECT_EQ(fixed_zero, LoadZone(fixed_zero.name())); - EXPECT_EQ(fixed_zero, explicit_utc); - - const time_zone fixed_utc = LoadZone("Fixed/UTC+00:00:00"); - EXPECT_EQ(fixed_utc, LoadZone(fixed_utc.name())); - EXPECT_EQ(fixed_utc, explicit_utc); - - const time_zone fixed_pos = fixed_time_zone( - chrono::hours(3) + chrono::minutes(25) + chrono::seconds(45)); - EXPECT_EQ(fixed_pos, LoadZone(fixed_pos.name())); - EXPECT_NE(fixed_pos, explicit_utc); - const time_zone fixed_neg = fixed_time_zone( - -(chrono::hours(12) + chrono::minutes(34) + chrono::seconds(56))); - EXPECT_EQ(fixed_neg, LoadZone(fixed_neg.name())); - EXPECT_NE(fixed_neg, explicit_utc); - - const time_zone fixed_lim = fixed_time_zone(chrono::hours(24)); - EXPECT_EQ(fixed_lim, LoadZone(fixed_lim.name())); - EXPECT_NE(fixed_lim, explicit_utc); - const time_zone fixed_ovfl = - fixed_time_zone(chrono::hours(24) + chrono::seconds(1)); - EXPECT_EQ(fixed_ovfl, LoadZone(fixed_ovfl.name())); - EXPECT_EQ(fixed_ovfl, explicit_utc); - - EXPECT_EQ(fixed_time_zone(chrono::seconds(1)), - fixed_time_zone(chrono::seconds(1))); - - const time_zone local = local_time_zone(); - EXPECT_EQ(local, LoadZone(local.name())); - - time_zone la = LoadZone("America/Los_Angeles"); - time_zone nyc = LoadZone("America/New_York"); - EXPECT_NE(la, nyc); -} - -TEST(StdChronoTimePoint, TimeTAlignment) { - // Ensures that the Unix epoch and the system clock epoch are an integral - // number of seconds apart. This simplifies conversions to/from time_t. - auto diff = - chrono::system_clock::time_point() - chrono::system_clock::from_time_t(0); - EXPECT_EQ(chrono::system_clock::time_point::duration::zero(), - diff % chrono::seconds(1)); -} - -TEST(BreakTime, TimePointResolution) { - const time_zone utc = utc_time_zone(); - const auto t0 = chrono::system_clock::from_time_t(0); - - ExpectTime(chrono::time_point_cast<chrono::nanoseconds>(t0), utc, 1970, 1, 1, - 0, 0, 0, 0, false, "UTC"); - ExpectTime(chrono::time_point_cast<chrono::microseconds>(t0), utc, 1970, 1, 1, - 0, 0, 0, 0, false, "UTC"); - ExpectTime(chrono::time_point_cast<chrono::milliseconds>(t0), utc, 1970, 1, 1, - 0, 0, 0, 0, false, "UTC"); - ExpectTime(chrono::time_point_cast<chrono::seconds>(t0), utc, 1970, 1, 1, 0, - 0, 0, 0, false, "UTC"); - ExpectTime(chrono::time_point_cast<absl::time_internal::cctz::seconds>(t0), - utc, 1970, 1, 1, 0, 0, 0, 0, false, "UTC"); - ExpectTime(chrono::time_point_cast<chrono::minutes>(t0), utc, 1970, 1, 1, 0, - 0, 0, 0, false, "UTC"); - ExpectTime(chrono::time_point_cast<chrono::hours>(t0), utc, 1970, 1, 1, 0, 0, - 0, 0, false, "UTC"); -} - -TEST(BreakTime, LocalTimeInUTC) { - const time_zone tz = utc_time_zone(); - const auto tp = chrono::system_clock::from_time_t(0); - ExpectTime(tp, tz, 1970, 1, 1, 0, 0, 0, 0, false, "UTC"); - EXPECT_EQ(weekday::thursday, get_weekday(convert(tp, tz))); -} - -TEST(BreakTime, LocalTimeInUTCUnaligned) { - const time_zone tz = utc_time_zone(); - const auto tp = - chrono::system_clock::from_time_t(0) - chrono::milliseconds(500); - ExpectTime(tp, tz, 1969, 12, 31, 23, 59, 59, 0, false, "UTC"); - EXPECT_EQ(weekday::wednesday, get_weekday(convert(tp, tz))); -} - -TEST(BreakTime, LocalTimePosix) { - // See IEEE Std 1003.1-1988 B.2.3 General Terms, Epoch. - const time_zone tz = utc_time_zone(); - const auto tp = chrono::system_clock::from_time_t(536457599); - ExpectTime(tp, tz, 1986, 12, 31, 23, 59, 59, 0, false, "UTC"); - EXPECT_EQ(weekday::wednesday, get_weekday(convert(tp, tz))); -} - -TEST(TimeZoneImpl, LocalTimeInFixed) { - const absl::time_internal::cctz::seconds offset = - -(chrono::hours(8) + chrono::minutes(33) + chrono::seconds(47)); - const time_zone tz = fixed_time_zone(offset); - const auto tp = chrono::system_clock::from_time_t(0); - ExpectTime(tp, tz, 1969, 12, 31, 15, 26, 13, offset.count(), false, - "-083347"); - EXPECT_EQ(weekday::wednesday, get_weekday(convert(tp, tz))); -} - -TEST(BreakTime, LocalTimeInNewYork) { - const time_zone tz = LoadZone("America/New_York"); - const auto tp = chrono::system_clock::from_time_t(45); - ExpectTime(tp, tz, 1969, 12, 31, 19, 0, 45, -5 * 60 * 60, false, "EST"); - EXPECT_EQ(weekday::wednesday, get_weekday(convert(tp, tz))); -} - -TEST(BreakTime, LocalTimeInMTV) { - const time_zone tz = LoadZone("America/Los_Angeles"); - const auto tp = chrono::system_clock::from_time_t(1380855729); - ExpectTime(tp, tz, 2013, 10, 3, 20, 2, 9, -7 * 60 * 60, true, "PDT"); - EXPECT_EQ(weekday::thursday, get_weekday(convert(tp, tz))); -} - -TEST(BreakTime, LocalTimeInSydney) { - const time_zone tz = LoadZone("Australia/Sydney"); - const auto tp = chrono::system_clock::from_time_t(90); - ExpectTime(tp, tz, 1970, 1, 1, 10, 1, 30, 10 * 60 * 60, false, "AEST"); - EXPECT_EQ(weekday::thursday, get_weekday(convert(tp, tz))); -} - -TEST(MakeTime, TimePointResolution) { - const time_zone utc = utc_time_zone(); - const time_point<chrono::nanoseconds> tp_ns = - convert(civil_second(2015, 1, 2, 3, 4, 5), utc); - EXPECT_EQ("04:05", format("%M:%E*S", tp_ns, utc)); - const time_point<chrono::microseconds> tp_us = - convert(civil_second(2015, 1, 2, 3, 4, 5), utc); - EXPECT_EQ("04:05", format("%M:%E*S", tp_us, utc)); - const time_point<chrono::milliseconds> tp_ms = - convert(civil_second(2015, 1, 2, 3, 4, 5), utc); - EXPECT_EQ("04:05", format("%M:%E*S", tp_ms, utc)); - const time_point<chrono::seconds> tp_s = - convert(civil_second(2015, 1, 2, 3, 4, 5), utc); - EXPECT_EQ("04:05", format("%M:%E*S", tp_s, utc)); - const time_point<absl::time_internal::cctz::seconds> tp_s64 = - convert(civil_second(2015, 1, 2, 3, 4, 5), utc); - EXPECT_EQ("04:05", format("%M:%E*S", tp_s64, utc)); - - // These next two require chrono::time_point_cast because the conversion - // from a resolution of seconds (the return value of convert()) to a - // coarser resolution requires an explicit cast. - const time_point<chrono::minutes> tp_m = - chrono::time_point_cast<chrono::minutes>( - convert(civil_second(2015, 1, 2, 3, 4, 5), utc)); - EXPECT_EQ("04:00", format("%M:%E*S", tp_m, utc)); - const time_point<chrono::hours> tp_h = chrono::time_point_cast<chrono::hours>( - convert(civil_second(2015, 1, 2, 3, 4, 5), utc)); - EXPECT_EQ("00:00", format("%M:%E*S", tp_h, utc)); -} - -TEST(MakeTime, Normalization) { - const time_zone tz = LoadZone("America/New_York"); - const auto tp = convert(civil_second(2009, 2, 13, 18, 31, 30), tz); - EXPECT_EQ(chrono::system_clock::from_time_t(1234567890), tp); - - // Now requests for the same time_point but with out-of-range fields. - EXPECT_EQ(tp, convert(civil_second(2008, 14, 13, 18, 31, 30), tz)); // month - EXPECT_EQ(tp, convert(civil_second(2009, 1, 44, 18, 31, 30), tz)); // day - EXPECT_EQ(tp, convert(civil_second(2009, 2, 12, 42, 31, 30), tz)); // hour - EXPECT_EQ(tp, convert(civil_second(2009, 2, 13, 17, 91, 30), tz)); // minute - EXPECT_EQ(tp, convert(civil_second(2009, 2, 13, 18, 30, 90), tz)); // second -} - -// NOTE: Run this with -ftrapv to detect overflow problems. -TEST(MakeTime, SysSecondsLimits) { - const char RFC3339[] = "%Y-%m-%d%ET%H:%M:%S%Ez"; - const time_zone utc = utc_time_zone(); - const time_zone east = fixed_time_zone(chrono::hours(14)); - const time_zone west = fixed_time_zone(-chrono::hours(14)); - time_point<absl::time_internal::cctz::seconds> tp; - - // Approach the maximal time_point<cctz::seconds> value from below. - tp = convert(civil_second(292277026596, 12, 4, 15, 30, 6), utc); - EXPECT_EQ("292277026596-12-04T15:30:06+00:00", format(RFC3339, tp, utc)); - tp = convert(civil_second(292277026596, 12, 4, 15, 30, 7), utc); - EXPECT_EQ("292277026596-12-04T15:30:07+00:00", format(RFC3339, tp, utc)); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - tp = convert(civil_second(292277026596, 12, 4, 15, 30, 8), utc); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - tp = convert(civil_second::max(), utc); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - - // Checks that we can also get the maximal value for a far-east zone. - tp = convert(civil_second(292277026596, 12, 5, 5, 30, 7), east); - EXPECT_EQ("292277026596-12-05T05:30:07+14:00", format(RFC3339, tp, east)); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - tp = convert(civil_second(292277026596, 12, 5, 5, 30, 8), east); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - tp = convert(civil_second::max(), east); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - - // Checks that we can also get the maximal value for a far-west zone. - tp = convert(civil_second(292277026596, 12, 4, 1, 30, 7), west); - EXPECT_EQ("292277026596-12-04T01:30:07-14:00", format(RFC3339, tp, west)); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - tp = convert(civil_second(292277026596, 12, 4, 7, 30, 8), west); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - tp = convert(civil_second::max(), west); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::max(), tp); - - // Approach the minimal time_point<cctz::seconds> value from above. - tp = convert(civil_second(-292277022657, 1, 27, 8, 29, 53), utc); - EXPECT_EQ("-292277022657-01-27T08:29:53+00:00", format(RFC3339, tp, utc)); - tp = convert(civil_second(-292277022657, 1, 27, 8, 29, 52), utc); - EXPECT_EQ("-292277022657-01-27T08:29:52+00:00", format(RFC3339, tp, utc)); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - tp = convert(civil_second(-292277022657, 1, 27, 8, 29, 51), utc); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - tp = convert(civil_second::min(), utc); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - - // Checks that we can also get the minimal value for a far-east zone. - tp = convert(civil_second(-292277022657, 1, 27, 22, 29, 52), east); - EXPECT_EQ("-292277022657-01-27T22:29:52+14:00", format(RFC3339, tp, east)); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - tp = convert(civil_second(-292277022657, 1, 27, 22, 29, 51), east); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - tp = convert(civil_second::min(), east); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - - // Checks that we can also get the minimal value for a far-west zone. - tp = convert(civil_second(-292277022657, 1, 26, 18, 29, 52), west); - EXPECT_EQ("-292277022657-01-26T18:29:52-14:00", format(RFC3339, tp, west)); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - tp = convert(civil_second(-292277022657, 1, 26, 18, 29, 51), west); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - tp = convert(civil_second::min(), west); - EXPECT_EQ(time_point<absl::time_internal::cctz::seconds>::min(), tp); - - // Some similar checks for the "libc" time-zone implementation. - if (sizeof(std::time_t) >= 8) { - // Checks that "tm_year + 1900", as used by the "libc" implementation, - // can produce year values beyond the range on an int without overflow. -#if defined(_WIN32) || defined(_WIN64) - // localtime_s() and gmtime_s() don't believe in years outside [1970:3000]. -#else - const time_zone utc = LoadZone("libc:UTC"); - const year_t max_tm_year = year_t{std::numeric_limits<int>::max()} + 1900; - tp = convert(civil_second(max_tm_year, 12, 31, 23, 59, 59), utc); - EXPECT_EQ("2147485547-12-31T23:59:59+00:00", format(RFC3339, tp, utc)); - const year_t min_tm_year = year_t{std::numeric_limits<int>::min()} + 1900; - tp = convert(civil_second(min_tm_year, 1, 1, 0, 0, 0), utc); - EXPECT_EQ("-2147481748-01-01T00:00:00+00:00", format(RFC3339, tp, utc)); -#endif - } -} - -TEST(MakeTime, LocalTimeLibC) { - // Checks that cctz and libc agree on transition points in [1970:2037]. - // - // We limit this test case to environments where: - // 1) we know how to change the time zone used by localtime()/mktime(), - // 2) cctz and localtime()/mktime() will use similar-enough tzdata, and - // 3) we have some idea about how mktime() behaves during transitions. -#if defined(__linux__) && !defined(__ANDROID__) - const char* const ep = getenv("TZ"); - std::string tz_name = (ep != nullptr) ? ep : ""; - for (const char* const* np = kTimeZoneNames; *np != nullptr; ++np) { - ASSERT_EQ(0, setenv("TZ", *np, 1)); // change what "localtime" means - const auto zi = local_time_zone(); - const auto lc = LoadZone("libc:localtime"); - time_zone::civil_transition transition; - for (auto tp = zi.lookup(civil_second()).trans; - zi.next_transition(tp, &transition); - tp = zi.lookup(transition.to).trans) { - const auto fcl = zi.lookup(transition.from); - const auto tcl = zi.lookup(transition.to); - civil_second cs; // compare cs in zi and lc - if (fcl.kind == time_zone::civil_lookup::UNIQUE) { - if (tcl.kind == time_zone::civil_lookup::UNIQUE) { - // Both unique; must be an is_dst or abbr change. - ASSERT_EQ(transition.from, transition.to); - const auto trans = fcl.trans; - const auto tal = zi.lookup(trans); - const auto tprev = trans - absl::time_internal::cctz::seconds(1); - const auto pal = zi.lookup(tprev); - if (pal.is_dst == tal.is_dst) { - ASSERT_STRNE(pal.abbr, tal.abbr); - } - continue; - } - ASSERT_EQ(time_zone::civil_lookup::REPEATED, tcl.kind); - cs = transition.to; - } else { - ASSERT_EQ(time_zone::civil_lookup::UNIQUE, tcl.kind); - ASSERT_EQ(time_zone::civil_lookup::SKIPPED, fcl.kind); - cs = transition.from; - } - if (cs.year() > 2037) break; // limit test time (and to 32-bit time_t) - const auto cl_zi = zi.lookup(cs); - if (zi.lookup(cl_zi.pre).is_dst == zi.lookup(cl_zi.post).is_dst) { - // The "libc" implementation cannot correctly classify transitions - // that don't change the "tm_isdst" flag. In Europe/Volgograd, for - // example, there is a SKIPPED transition from +03 to +04 with dst=F - // on both sides ... - // 1540681199 = 2018-10-28 01:59:59 +03:00:00 [dst=F off=10800] - // 1540681200 = 2018-10-28 03:00:00 +04:00:00 [dst=F off=14400] - // but std::mktime(2018-10-28 02:00:00, tm_isdst=0) fails, unlike, - // say, the similar Europe/Chisinau transition from +02 to +03 ... - // 1521935999 = 2018-03-25 01:59:59 +02:00:00 [dst=F off=7200] - // 1521936000 = 2018-03-25 03:00:00 +03:00:00 [dst=T off=10800] - // where std::mktime(2018-03-25 02:00:00, tm_isdst=0) succeeds and - // returns 1521936000. - continue; - } - if (cs == civil_second(2037, 10, 4, 2, 0, 0)) { - const std::string tzname = *np; - if (tzname == "Africa/Casablanca" || tzname == "Africa/El_Aaiun") { - // The "libc" implementation gets this transition wrong (at least - // until 2018g when it was removed), returning an offset of 3600 - // instead of 0. TODO: Revert this when 2018g is ubiquitous. - continue; - } - } - const auto cl_lc = lc.lookup(cs); - SCOPED_TRACE(testing::Message() << "For " << cs << " in " << *np); - EXPECT_EQ(cl_zi.kind, cl_lc.kind); - EXPECT_EQ(cl_zi.pre, cl_lc.pre); - EXPECT_EQ(cl_zi.trans, cl_lc.trans); - EXPECT_EQ(cl_zi.post, cl_lc.post); - } - } - if (ep == nullptr) { - ASSERT_EQ(0, unsetenv("TZ")); - } else { - ASSERT_EQ(0, setenv("TZ", tz_name.c_str(), 1)); - } -#endif -} - -TEST(NextTransition, UTC) { - const auto tz = utc_time_zone(); - time_zone::civil_transition trans; - - auto tp = time_point<absl::time_internal::cctz::seconds>::min(); - EXPECT_FALSE(tz.next_transition(tp, &trans)); - - tp = time_point<absl::time_internal::cctz::seconds>::max(); - EXPECT_FALSE(tz.next_transition(tp, &trans)); -} - -TEST(PrevTransition, UTC) { - const auto tz = utc_time_zone(); - time_zone::civil_transition trans; - - auto tp = time_point<absl::time_internal::cctz::seconds>::max(); - EXPECT_FALSE(tz.prev_transition(tp, &trans)); - - tp = time_point<absl::time_internal::cctz::seconds>::min(); - EXPECT_FALSE(tz.prev_transition(tp, &trans)); -} - -TEST(NextTransition, AmericaNewYork) { - const auto tz = LoadZone("America/New_York"); - time_zone::civil_transition trans; - - auto tp = convert(civil_second(2018, 6, 30, 0, 0, 0), tz); - EXPECT_TRUE(tz.next_transition(tp, &trans)); - EXPECT_EQ(civil_second(2018, 11, 4, 2, 0, 0), trans.from); - EXPECT_EQ(civil_second(2018, 11, 4, 1, 0, 0), trans.to); - - tp = time_point<absl::time_internal::cctz::seconds>::max(); - EXPECT_FALSE(tz.next_transition(tp, &trans)); - - tp = time_point<absl::time_internal::cctz::seconds>::min(); - EXPECT_TRUE(tz.next_transition(tp, &trans)); - if (trans.from == civil_second(1918, 3, 31, 2, 0, 0)) { - // It looks like the tzdata is only 32 bit (probably macOS), - // which bottoms out at 1901-12-13T20:45:52+00:00. - EXPECT_EQ(civil_second(1918, 3, 31, 3, 0, 0), trans.to); - } else { - EXPECT_EQ(civil_second(1883, 11, 18, 12, 3, 58), trans.from); - EXPECT_EQ(civil_second(1883, 11, 18, 12, 0, 0), trans.to); - } -} - -TEST(PrevTransition, AmericaNewYork) { - const auto tz = LoadZone("America/New_York"); - time_zone::civil_transition trans; - - auto tp = convert(civil_second(2018, 6, 30, 0, 0, 0), tz); - EXPECT_TRUE(tz.prev_transition(tp, &trans)); - EXPECT_EQ(civil_second(2018, 3, 11, 2, 0, 0), trans.from); - EXPECT_EQ(civil_second(2018, 3, 11, 3, 0, 0), trans.to); - - tp = time_point<absl::time_internal::cctz::seconds>::min(); - EXPECT_FALSE(tz.prev_transition(tp, &trans)); - - tp = time_point<absl::time_internal::cctz::seconds>::max(); - EXPECT_TRUE(tz.prev_transition(tp, &trans)); - // We have a transition but we don't know which one. -} - -TEST(TimeZoneEdgeCase, AmericaNewYork) { - const time_zone tz = LoadZone("America/New_York"); - - // Spring 1:59:59 -> 3:00:00 - auto tp = convert(civil_second(2013, 3, 10, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 3, 10, 1, 59, 59, -5 * 3600, false, "EST"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 3, 10, 3, 0, 0, -4 * 3600, true, "EDT"); - - // Fall 1:59:59 -> 1:00:00 - tp = convert(civil_second(2013, 11, 3, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 11, 3, 1, 59, 59, -4 * 3600, true, "EDT"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 11, 3, 1, 0, 0, -5 * 3600, false, "EST"); -} - -TEST(TimeZoneEdgeCase, AmericaLosAngeles) { - const time_zone tz = LoadZone("America/Los_Angeles"); - - // Spring 1:59:59 -> 3:00:00 - auto tp = convert(civil_second(2013, 3, 10, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 3, 10, 1, 59, 59, -8 * 3600, false, "PST"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 3, 10, 3, 0, 0, -7 * 3600, true, "PDT"); - - // Fall 1:59:59 -> 1:00:00 - tp = convert(civil_second(2013, 11, 3, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 11, 3, 1, 59, 59, -7 * 3600, true, "PDT"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 11, 3, 1, 0, 0, -8 * 3600, false, "PST"); -} - -TEST(TimeZoneEdgeCase, ArizonaNoTransition) { - const time_zone tz = LoadZone("America/Phoenix"); - - // No transition in Spring. - auto tp = convert(civil_second(2013, 3, 10, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 3, 10, 1, 59, 59, -7 * 3600, false, "MST"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 3, 10, 2, 0, 0, -7 * 3600, false, "MST"); - - // No transition in Fall. - tp = convert(civil_second(2013, 11, 3, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 11, 3, 1, 59, 59, -7 * 3600, false, "MST"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 11, 3, 2, 0, 0, -7 * 3600, false, "MST"); -} - -TEST(TimeZoneEdgeCase, AsiaKathmandu) { - const time_zone tz = LoadZone("Asia/Kathmandu"); - - // A non-DST offset change from +0530 to +0545 - // - // 504901799 == Tue, 31 Dec 1985 23:59:59 +0530 (+0530) - // 504901800 == Wed, 1 Jan 1986 00:15:00 +0545 (+0545) - auto tp = convert(civil_second(1985, 12, 31, 23, 59, 59), tz); - ExpectTime(tp, tz, 1985, 12, 31, 23, 59, 59, 5.5 * 3600, false, "+0530"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 1986, 1, 1, 0, 15, 0, 5.75 * 3600, false, "+0545"); -} - -TEST(TimeZoneEdgeCase, PacificChatham) { - const time_zone tz = LoadZone("Pacific/Chatham"); - - // One-hour DST offset changes, but at atypical values - // - // 1365256799 == Sun, 7 Apr 2013 03:44:59 +1345 (+1345) - // 1365256800 == Sun, 7 Apr 2013 02:45:00 +1245 (+1245) - auto tp = convert(civil_second(2013, 4, 7, 3, 44, 59), tz); - ExpectTime(tp, tz, 2013, 4, 7, 3, 44, 59, 13.75 * 3600, true, "+1345"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 4, 7, 2, 45, 0, 12.75 * 3600, false, "+1245"); - - // 1380376799 == Sun, 29 Sep 2013 02:44:59 +1245 (+1245) - // 1380376800 == Sun, 29 Sep 2013 03:45:00 +1345 (+1345) - tp = convert(civil_second(2013, 9, 29, 2, 44, 59), tz); - ExpectTime(tp, tz, 2013, 9, 29, 2, 44, 59, 12.75 * 3600, false, "+1245"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 9, 29, 3, 45, 0, 13.75 * 3600, true, "+1345"); -} - -TEST(TimeZoneEdgeCase, AustraliaLordHowe) { - const time_zone tz = LoadZone("Australia/Lord_Howe"); - - // Half-hour DST offset changes - // - // 1365260399 == Sun, 7 Apr 2013 01:59:59 +1100 (+11) - // 1365260400 == Sun, 7 Apr 2013 01:30:00 +1030 (+1030) - auto tp = convert(civil_second(2013, 4, 7, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 4, 7, 1, 59, 59, 11 * 3600, true, "+11"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 4, 7, 1, 30, 0, 10.5 * 3600, false, "+1030"); - - // 1380986999 == Sun, 6 Oct 2013 01:59:59 +1030 (+1030) - // 1380987000 == Sun, 6 Oct 2013 02:30:00 +1100 (+11) - tp = convert(civil_second(2013, 10, 6, 1, 59, 59), tz); - ExpectTime(tp, tz, 2013, 10, 6, 1, 59, 59, 10.5 * 3600, false, "+1030"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2013, 10, 6, 2, 30, 0, 11 * 3600, true, "+11"); -} - -TEST(TimeZoneEdgeCase, PacificApia) { - const time_zone tz = LoadZone("Pacific/Apia"); - - // At the end of December 2011, Samoa jumped forward by one day, - // skipping 30 December from the local calendar, when the nation - // moved to the west of the International Date Line. - // - // A one-day, non-DST offset change - // - // 1325239199 == Thu, 29 Dec 2011 23:59:59 -1000 (-10) - // 1325239200 == Sat, 31 Dec 2011 00:00:00 +1400 (+14) - auto tp = convert(civil_second(2011, 12, 29, 23, 59, 59), tz); - ExpectTime(tp, tz, 2011, 12, 29, 23, 59, 59, -10 * 3600, true, "-10"); - EXPECT_EQ(363, get_yearday(convert(tp, tz))); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2011, 12, 31, 0, 0, 0, 14 * 3600, true, "+14"); - EXPECT_EQ(365, get_yearday(convert(tp, tz))); -} - -TEST(TimeZoneEdgeCase, AfricaCairo) { - const time_zone tz = LoadZone("Africa/Cairo"); - - if (VersionCmp(tz, "2014c") >= 0) { - // An interesting case of midnight not existing. - // - // 1400191199 == Thu, 15 May 2014 23:59:59 +0200 (EET) - // 1400191200 == Fri, 16 May 2014 01:00:00 +0300 (EEST) - auto tp = convert(civil_second(2014, 5, 15, 23, 59, 59), tz); - ExpectTime(tp, tz, 2014, 5, 15, 23, 59, 59, 2 * 3600, false, "EET"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2014, 5, 16, 1, 0, 0, 3 * 3600, true, "EEST"); - } -} - -TEST(TimeZoneEdgeCase, AfricaMonrovia) { - const time_zone tz = LoadZone("Africa/Monrovia"); - - if (VersionCmp(tz, "2017b") >= 0) { - // Strange offset change -00:44:30 -> +00:00:00 (non-DST) - // - // 63593069 == Thu, 6 Jan 1972 23:59:59 -0044 (MMT) - // 63593070 == Fri, 7 Jan 1972 00:44:30 +0000 (GMT) - auto tp = convert(civil_second(1972, 1, 6, 23, 59, 59), tz); - ExpectTime(tp, tz, 1972, 1, 6, 23, 59, 59, -44.5 * 60, false, "MMT"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 1972, 1, 7, 0, 44, 30, 0 * 60, false, "GMT"); - } -} - -TEST(TimeZoneEdgeCase, AmericaJamaica) { - // Jamaica discontinued DST transitions in 1983, and is now at a - // constant -0500. This makes it an interesting edge-case target. - // Note that the 32-bit times used in a (tzh_version == 0) zoneinfo - // file cannot represent the abbreviation-only transition of 1890, - // so we ignore the abbreviation by expecting what we received. - const time_zone tz = LoadZone("America/Jamaica"); - - // Before the first transition. - if (!tz.version().empty() && VersionCmp(tz, "2018d") >= 0) { - // We avoid the expectations on the -18430 offset below unless we are - // certain we have commit 907241e (Fix off-by-1 error for Jamaica and - // T&C before 1913) from 2018d. TODO: Remove the "version() not empty" - // part when 2018d is generally available from /usr/share/zoneinfo. - auto tp = convert(civil_second(1889, 12, 31, 0, 0, 0), tz); - ExpectTime(tp, tz, 1889, 12, 31, 0, 0, 0, -18430, false, - tz.lookup(tp).abbr); - - // Over the first (abbreviation-change only) transition. - // -2524503170 == Tue, 31 Dec 1889 23:59:59 -0507 (LMT) - // -2524503169 == Wed, 1 Jan 1890 00:00:00 -0507 (KMT) - tp = convert(civil_second(1889, 12, 31, 23, 59, 59), tz); - ExpectTime(tp, tz, 1889, 12, 31, 23, 59, 59, -18430, false, - tz.lookup(tp).abbr); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 1890, 1, 1, 0, 0, 0, -18430, false, "KMT"); - } - - // Over the last (DST) transition. - // 436341599 == Sun, 30 Oct 1983 01:59:59 -0400 (EDT) - // 436341600 == Sun, 30 Oct 1983 01:00:00 -0500 (EST) - auto tp = convert(civil_second(1983, 10, 30, 1, 59, 59), tz); - ExpectTime(tp, tz, 1983, 10, 30, 1, 59, 59, -4 * 3600, true, "EDT"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 1983, 10, 30, 1, 0, 0, -5 * 3600, false, "EST"); - - // After the last transition. - tp = convert(civil_second(1983, 12, 31, 23, 59, 59), tz); - ExpectTime(tp, tz, 1983, 12, 31, 23, 59, 59, -5 * 3600, false, "EST"); -} - -TEST(TimeZoneEdgeCase, WET) { - // Cover some non-existent times within forward transitions. - const time_zone tz = LoadZone("WET"); - - // Before the first transition. - auto tp = convert(civil_second(1977, 1, 1, 0, 0, 0), tz); - ExpectTime(tp, tz, 1977, 1, 1, 0, 0, 0, 0, false, "WET"); - - // Over the first transition. - // 228877199 == Sun, 3 Apr 1977 00:59:59 +0000 (WET) - // 228877200 == Sun, 3 Apr 1977 02:00:00 +0100 (WEST) - tp = convert(civil_second(1977, 4, 3, 0, 59, 59), tz); - ExpectTime(tp, tz, 1977, 4, 3, 0, 59, 59, 0, false, "WET"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 1977, 4, 3, 2, 0, 0, 1 * 3600, true, "WEST"); - - // A non-existent time within the first transition. - time_zone::civil_lookup cl1 = tz.lookup(civil_second(1977, 4, 3, 1, 15, 0)); - EXPECT_EQ(time_zone::civil_lookup::SKIPPED, cl1.kind); - ExpectTime(cl1.pre, tz, 1977, 4, 3, 2, 15, 0, 1 * 3600, true, "WEST"); - ExpectTime(cl1.trans, tz, 1977, 4, 3, 2, 0, 0, 1 * 3600, true, "WEST"); - ExpectTime(cl1.post, tz, 1977, 4, 3, 0, 15, 0, 0 * 3600, false, "WET"); - - // A non-existent time within the second forward transition. - time_zone::civil_lookup cl2 = tz.lookup(civil_second(1978, 4, 2, 1, 15, 0)); - EXPECT_EQ(time_zone::civil_lookup::SKIPPED, cl2.kind); - ExpectTime(cl2.pre, tz, 1978, 4, 2, 2, 15, 0, 1 * 3600, true, "WEST"); - ExpectTime(cl2.trans, tz, 1978, 4, 2, 2, 0, 0, 1 * 3600, true, "WEST"); - ExpectTime(cl2.post, tz, 1978, 4, 2, 0, 15, 0, 0 * 3600, false, "WET"); -} - -TEST(TimeZoneEdgeCase, FixedOffsets) { - const time_zone gmtm5 = LoadZone("Etc/GMT+5"); // -0500 - auto tp = convert(civil_second(1970, 1, 1, 0, 0, 0), gmtm5); - ExpectTime(tp, gmtm5, 1970, 1, 1, 0, 0, 0, -5 * 3600, false, "-05"); - EXPECT_EQ(chrono::system_clock::from_time_t(5 * 3600), tp); - - const time_zone gmtp5 = LoadZone("Etc/GMT-5"); // +0500 - tp = convert(civil_second(1970, 1, 1, 0, 0, 0), gmtp5); - ExpectTime(tp, gmtp5, 1970, 1, 1, 0, 0, 0, 5 * 3600, false, "+05"); - EXPECT_EQ(chrono::system_clock::from_time_t(-5 * 3600), tp); -} - -TEST(TimeZoneEdgeCase, NegativeYear) { - // Tests transition from year 0 (aka 1BCE) to year -1. - const time_zone tz = utc_time_zone(); - auto tp = convert(civil_second(0, 1, 1, 0, 0, 0), tz); - ExpectTime(tp, tz, 0, 1, 1, 0, 0, 0, 0 * 3600, false, "UTC"); - EXPECT_EQ(weekday::saturday, get_weekday(convert(tp, tz))); - tp -= absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, -1, 12, 31, 23, 59, 59, 0 * 3600, false, "UTC"); - EXPECT_EQ(weekday::friday, get_weekday(convert(tp, tz))); -} - -TEST(TimeZoneEdgeCase, UTC32bitLimit) { - const time_zone tz = utc_time_zone(); - - // Limits of signed 32-bit time_t - // - // 2147483647 == Tue, 19 Jan 2038 03:14:07 +0000 (UTC) - // 2147483648 == Tue, 19 Jan 2038 03:14:08 +0000 (UTC) - auto tp = convert(civil_second(2038, 1, 19, 3, 14, 7), tz); - ExpectTime(tp, tz, 2038, 1, 19, 3, 14, 7, 0 * 3600, false, "UTC"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 2038, 1, 19, 3, 14, 8, 0 * 3600, false, "UTC"); -} - -TEST(TimeZoneEdgeCase, UTC5DigitYear) { - const time_zone tz = utc_time_zone(); - - // Rollover to 5-digit year - // - // 253402300799 == Fri, 31 Dec 9999 23:59:59 +0000 (UTC) - // 253402300800 == Sat, 1 Jan 1000 00:00:00 +0000 (UTC) - auto tp = convert(civil_second(9999, 12, 31, 23, 59, 59), tz); - ExpectTime(tp, tz, 9999, 12, 31, 23, 59, 59, 0 * 3600, false, "UTC"); - tp += absl::time_internal::cctz::seconds(1); - ExpectTime(tp, tz, 10000, 1, 1, 0, 0, 0, 0 * 3600, false, "UTC"); -} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_posix.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_posix.cc deleted file mode 100644 index 5cdd09e89d..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_posix.cc +++ /dev/null @@ -1,159 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "time_zone_posix.h" - -#include <cstddef> -#include <cstring> -#include <limits> -#include <string> - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -namespace { - -const char kDigits[] = "0123456789"; - -const char* ParseInt(const char* p, int min, int max, int* vp) { - int value = 0; - const char* op = p; - const int kMaxInt = std::numeric_limits<int>::max(); - for (; const char* dp = strchr(kDigits, *p); ++p) { - int d = static_cast<int>(dp - kDigits); - if (d >= 10) break; // '\0' - if (value > kMaxInt / 10) return nullptr; - value *= 10; - if (value > kMaxInt - d) return nullptr; - value += d; - } - if (p == op || value < min || value > max) return nullptr; - *vp = value; - return p; -} - -// abbr = <.*?> | [^-+,\d]{3,} -const char* ParseAbbr(const char* p, std::string* abbr) { - const char* op = p; - if (*p == '<') { // special zoneinfo <...> form - while (*++p != '>') { - if (*p == '\0') return nullptr; - } - abbr->assign(op + 1, static_cast<std::size_t>(p - op) - 1); - return ++p; - } - while (*p != '\0') { - if (strchr("-+,", *p)) break; - if (strchr(kDigits, *p)) break; - ++p; - } - if (p - op < 3) return nullptr; - abbr->assign(op, static_cast<std::size_t>(p - op)); - return p; -} - -// offset = [+|-]hh[:mm[:ss]] (aggregated into single seconds value) -const char* ParseOffset(const char* p, int min_hour, int max_hour, int sign, - std::int_fast32_t* offset) { - if (p == nullptr) return nullptr; - if (*p == '+' || *p == '-') { - if (*p++ == '-') sign = -sign; - } - int hours = 0; - int minutes = 0; - int seconds = 0; - - p = ParseInt(p, min_hour, max_hour, &hours); - if (p == nullptr) return nullptr; - if (*p == ':') { - p = ParseInt(p + 1, 0, 59, &minutes); - if (p == nullptr) return nullptr; - if (*p == ':') { - p = ParseInt(p + 1, 0, 59, &seconds); - if (p == nullptr) return nullptr; - } - } - *offset = sign * ((((hours * 60) + minutes) * 60) + seconds); - return p; -} - -// datetime = ( Jn | n | Mm.w.d ) [ / offset ] -const char* ParseDateTime(const char* p, PosixTransition* res) { - if (p != nullptr && *p == ',') { - if (*++p == 'M') { - int month = 0; - if ((p = ParseInt(p + 1, 1, 12, &month)) != nullptr && *p == '.') { - int week = 0; - if ((p = ParseInt(p + 1, 1, 5, &week)) != nullptr && *p == '.') { - int weekday = 0; - if ((p = ParseInt(p + 1, 0, 6, &weekday)) != nullptr) { - res->date.fmt = PosixTransition::M; - res->date.m.month = static_cast<std::int_fast8_t>(month); - res->date.m.week = static_cast<std::int_fast8_t>(week); - res->date.m.weekday = static_cast<std::int_fast8_t>(weekday); - } - } - } - } else if (*p == 'J') { - int day = 0; - if ((p = ParseInt(p + 1, 1, 365, &day)) != nullptr) { - res->date.fmt = PosixTransition::J; - res->date.j.day = static_cast<std::int_fast16_t>(day); - } - } else { - int day = 0; - if ((p = ParseInt(p, 0, 365, &day)) != nullptr) { - res->date.fmt = PosixTransition::N; - res->date.n.day = static_cast<std::int_fast16_t>(day); - } - } - } - if (p != nullptr) { - res->time.offset = 2 * 60 * 60; // default offset is 02:00:00 - if (*p == '/') p = ParseOffset(p + 1, -167, 167, 1, &res->time.offset); - } - return p; -} - -} // namespace - -// spec = std offset [ dst [ offset ] , datetime , datetime ] -bool ParsePosixSpec(const std::string& spec, PosixTimeZone* res) { - const char* p = spec.c_str(); - if (*p == ':') return false; - - p = ParseAbbr(p, &res->std_abbr); - p = ParseOffset(p, 0, 24, -1, &res->std_offset); - if (p == nullptr) return false; - if (*p == '\0') return true; - - p = ParseAbbr(p, &res->dst_abbr); - if (p == nullptr) return false; - res->dst_offset = res->std_offset + (60 * 60); // default - if (*p != ',') p = ParseOffset(p, 0, 24, -1, &res->dst_offset); - - p = ParseDateTime(p, &res->dst_start); - p = ParseDateTime(p, &res->dst_end); - - return p != nullptr && *p == '\0'; -} - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_posix.h b/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_posix.h deleted file mode 100644 index 0cf29055f5..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/time_zone_posix.h +++ /dev/null @@ -1,132 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// Parsing of a POSIX zone spec as described in the TZ part of section 8.3 in -// http://pubs.opengroup.org/onlinepubs/009695399/basedefs/xbd_chap08.html. -// -// The current POSIX spec for America/Los_Angeles is "PST8PDT,M3.2.0,M11.1.0", -// which would be broken down as ... -// -// PosixTimeZone { -// std_abbr = "PST" -// std_offset = -28800 -// dst_abbr = "PDT" -// dst_offset = -25200 -// dst_start = PosixTransition { -// date { -// m { -// month = 3 -// week = 2 -// weekday = 0 -// } -// } -// time { -// offset = 7200 -// } -// } -// dst_end = PosixTransition { -// date { -// m { -// month = 11 -// week = 1 -// weekday = 0 -// } -// } -// time { -// offset = 7200 -// } -// } -// } - -#ifndef ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_POSIX_H_ -#define ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_POSIX_H_ - -#include <cstdint> -#include <string> - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -// The date/time of the transition. The date is specified as either: -// (J) the Nth day of the year (1 <= N <= 365), excluding leap days, or -// (N) the Nth day of the year (0 <= N <= 365), including leap days, or -// (M) the Nth weekday of a month (e.g., the 2nd Sunday in March). -// The time, specified as a day offset, identifies the particular moment -// of the transition, and may be negative or >= 24h, and in which case -// it would take us to another day, and perhaps week, or even month. -struct PosixTransition { - enum DateFormat { J, N, M }; - - struct Date { - struct NonLeapDay { - std::int_fast16_t day; // day of non-leap year [1:365] - }; - struct Day { - std::int_fast16_t day; // day of year [0:365] - }; - struct MonthWeekWeekday { - std::int_fast8_t month; // month of year [1:12] - std::int_fast8_t week; // week of month [1:5] (5==last) - std::int_fast8_t weekday; // 0==Sun, ..., 6=Sat - }; - - DateFormat fmt; - - union { - NonLeapDay j; - Day n; - MonthWeekWeekday m; - }; - }; - - struct Time { - std::int_fast32_t offset; // seconds before/after 00:00:00 - }; - - Date date; - Time time; -}; - -// The entirety of a POSIX-string specified time-zone rule. The standard -// abbreviation and offset are always given. If the time zone includes -// daylight saving, then the daylight abbrevation is non-empty and the -// remaining fields are also valid. Note that the start/end transitions -// are not ordered---in the southern hemisphere the transition to end -// daylight time occurs first in any particular year. -struct PosixTimeZone { - std::string std_abbr; - std::int_fast32_t std_offset; - - std::string dst_abbr; - std::int_fast32_t dst_offset; - PosixTransition dst_start; - PosixTransition dst_end; -}; - -// Breaks down a POSIX time-zone specification into its constituent pieces, -// filling in any missing values (DST offset, or start/end transition times) -// with the standard-defined defaults. Returns false if the specification -// could not be parsed (although some fields of *res may have been altered). -bool ParsePosixSpec(const std::string& spec, PosixTimeZone* res); - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_TIME_INTERNAL_CCTZ_TIME_ZONE_POSIX_H_ diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/tzfile.h b/third_party/abseil_cpp/absl/time/internal/cctz/src/tzfile.h deleted file mode 100644 index 269fa36c53..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/tzfile.h +++ /dev/null @@ -1,122 +0,0 @@ -/* Layout and location of TZif files. */ - -#ifndef TZFILE_H - -#define TZFILE_H - -/* -** This file is in the public domain, so clarified as of -** 1996-06-05 by Arthur David Olson. -*/ - -/* -** This header is for use ONLY with the time conversion code. -** There is no guarantee that it will remain unchanged, -** or that it will remain at all. -** Do NOT copy it to any system include directory. -** Thank you! -*/ - -/* -** Information about time zone files. -*/ - -#ifndef TZDIR -#define TZDIR "/usr/share/zoneinfo" /* Time zone object file directory */ -#endif /* !defined TZDIR */ - -#ifndef TZDEFAULT -#define TZDEFAULT "/etc/localtime" -#endif /* !defined TZDEFAULT */ - -#ifndef TZDEFRULES -#define TZDEFRULES "posixrules" -#endif /* !defined TZDEFRULES */ - -/* See Internet RFC 8536 for more details about the following format. */ - -/* -** Each file begins with. . . -*/ - -#define TZ_MAGIC "TZif" - -struct tzhead { - char tzh_magic[4]; /* TZ_MAGIC */ - char tzh_version[1]; /* '\0' or '2' or '3' as of 2013 */ - char tzh_reserved[15]; /* reserved; must be zero */ - char tzh_ttisutcnt[4]; /* coded number of trans. time flags */ - char tzh_ttisstdcnt[4]; /* coded number of trans. time flags */ - char tzh_leapcnt[4]; /* coded number of leap seconds */ - char tzh_timecnt[4]; /* coded number of transition times */ - char tzh_typecnt[4]; /* coded number of local time types */ - char tzh_charcnt[4]; /* coded number of abbr. chars */ -}; - -/* -** . . .followed by. . . -** -** tzh_timecnt (char [4])s coded transition times a la time(2) -** tzh_timecnt (unsigned char)s types of local time starting at above -** tzh_typecnt repetitions of -** one (char [4]) coded UT offset in seconds -** one (unsigned char) used to set tm_isdst -** one (unsigned char) that's an abbreviation list index -** tzh_charcnt (char)s '\0'-terminated zone abbreviations -** tzh_leapcnt repetitions of -** one (char [4]) coded leap second transition times -** one (char [4]) total correction after above -** tzh_ttisstdcnt (char)s indexed by type; if 1, transition -** time is standard time, if 0, -** transition time is local (wall clock) -** time; if absent, transition times are -** assumed to be local time -** tzh_ttisutcnt (char)s indexed by type; if 1, transition -** time is UT, if 0, transition time is -** local time; if absent, transition -** times are assumed to be local time. -** When this is 1, the corresponding -** std/wall indicator must also be 1. -*/ - -/* -** If tzh_version is '2' or greater, the above is followed by a second instance -** of tzhead and a second instance of the data in which each coded transition -** time uses 8 rather than 4 chars, -** then a POSIX-TZ-environment-variable-style string for use in handling -** instants after the last transition time stored in the file -** (with nothing between the newlines if there is no POSIX representation for -** such instants). -** -** If tz_version is '3' or greater, the above is extended as follows. -** First, the POSIX TZ string's hour offset may range from -167 -** through 167 as compared to the POSIX-required 0 through 24. -** Second, its DST start time may be January 1 at 00:00 and its stop -** time December 31 at 24:00 plus the difference between DST and -** standard time, indicating DST all year. -*/ - -/* -** In the current implementation, "tzset()" refuses to deal with files that -** exceed any of the limits below. -*/ - -#ifndef TZ_MAX_TIMES -#define TZ_MAX_TIMES 2000 -#endif /* !defined TZ_MAX_TIMES */ - -#ifndef TZ_MAX_TYPES -/* This must be at least 17 for Europe/Samara and Europe/Vilnius. */ -#define TZ_MAX_TYPES 256 /* Limited by what (unsigned char)'s can hold */ -#endif /* !defined TZ_MAX_TYPES */ - -#ifndef TZ_MAX_CHARS -#define TZ_MAX_CHARS 50 /* Maximum number of abbreviation characters */ - /* (limited by what unsigned chars can hold) */ -#endif /* !defined TZ_MAX_CHARS */ - -#ifndef TZ_MAX_LEAPS -#define TZ_MAX_LEAPS 50 /* Maximum number of leap second corrections */ -#endif /* !defined TZ_MAX_LEAPS */ - -#endif /* !defined TZFILE_H */ diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/src/zone_info_source.cc b/third_party/abseil_cpp/absl/time/internal/cctz/src/zone_info_source.cc deleted file mode 100644 index 72095339c3..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/src/zone_info_source.cc +++ /dev/null @@ -1,116 +0,0 @@ -// Copyright 2016 Google Inc. All Rights Reserved. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/internal/cctz/include/cctz/zone_info_source.h" - -#include "absl/base/config.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz { - -// Defined out-of-line to avoid emitting a weak vtable in all TUs. -ZoneInfoSource::~ZoneInfoSource() {} -std::string ZoneInfoSource::Version() const { return std::string(); } - -} // namespace cctz -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz_extension { - -namespace { - -// A default for cctz_extension::zone_info_source_factory, which simply -// defers to the fallback factory. -std::unique_ptr<absl::time_internal::cctz::ZoneInfoSource> DefaultFactory( - const std::string& name, - const std::function< - std::unique_ptr<absl::time_internal::cctz::ZoneInfoSource>( - const std::string& name)>& fallback_factory) { - return fallback_factory(name); -} - -} // namespace - -// A "weak" definition for cctz_extension::zone_info_source_factory. -// The user may override this with their own "strong" definition (see -// zone_info_source.h). -#if !defined(__has_attribute) -#define __has_attribute(x) 0 -#endif -// MinGW is GCC on Windows, so while it asserts __has_attribute(weak), the -// Windows linker cannot handle that. Nor does the MinGW compiler know how to -// pass "#pragma comment(linker, ...)" to the Windows linker. -#if (__has_attribute(weak) || defined(__GNUC__)) && !defined(__MINGW32__) -ZoneInfoSourceFactory zone_info_source_factory __attribute__((weak)) = - DefaultFactory; -#elif defined(_MSC_VER) && !defined(__MINGW32__) && !defined(_LIBCPP_VERSION) -extern ZoneInfoSourceFactory zone_info_source_factory; -extern ZoneInfoSourceFactory default_factory; -ZoneInfoSourceFactory default_factory = DefaultFactory; -#if defined(_M_IX86) -#pragma comment( \ - linker, \ - "/alternatename:?zone_info_source_factory@cctz_extension@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@U?$default_delete@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@" ABSL_INTERNAL_MANGLED_BACKREFERENCE \ - "@ABV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@U?$default_delete@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@" ABSL_INTERNAL_MANGLED_BACKREFERENCE \ - "@@ZA=?default_factory@cctz_extension@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@U?$default_delete@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@" ABSL_INTERNAL_MANGLED_BACKREFERENCE \ - "@ABV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@U?$default_delete@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@@std@@@std@@ABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@" ABSL_INTERNAL_MANGLED_BACKREFERENCE \ - "@@ZA") -#elif defined(_M_IA_64) || defined(_M_AMD64) || defined(_M_ARM) || \ - defined(_M_ARM64) -#pragma comment( \ - linker, \ - "/alternatename:?zone_info_source_factory@cctz_extension@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@U?$default_delete@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@" ABSL_INTERNAL_MANGLED_BACKREFERENCE \ - "@AEBV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@U?$default_delete@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@" ABSL_INTERNAL_MANGLED_BACKREFERENCE \ - "@@ZEA=?default_factory@cctz_extension@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@3P6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@U?$default_delete@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@" ABSL_INTERNAL_MANGLED_BACKREFERENCE \ - "@AEBV?$function@$$A6A?AV?$unique_ptr@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@U?$default_delete@VZoneInfoSource@cctz@time_internal@" ABSL_INTERNAL_MANGLED_NS \ - "@@@std@@@std@@AEBV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@2@@Z@" ABSL_INTERNAL_MANGLED_BACKREFERENCE \ - "@@ZEA") -#else -#error Unsupported MSVC platform -#endif // _M_<PLATFORM> -#else -// Make it a "strong" definition if we have no other choice. -ZoneInfoSourceFactory zone_info_source_factory = DefaultFactory; -#endif - -} // namespace cctz_extension -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/testdata/README.zoneinfo b/third_party/abseil_cpp/absl/time/internal/cctz/testdata/README.zoneinfo deleted file mode 100644 index 95fb4a91d1..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/testdata/README.zoneinfo +++ /dev/null @@ -1,37 +0,0 @@ -testdata/zoneinfo contains time-zone data files that may be used with CCTZ. -Install them in a location referenced by the ${TZDIR} environment variable. -Symbolic and hard links have been eliminated for portability. - -On Linux systems the distribution's versions of these files can probably -already be found in the default ${TZDIR} location, /usr/share/zoneinfo. - -New versions can be generated using the following shell script. - - #!/bin/sh - - set -e - DESTDIR=$(mktemp -d) - trap "rm -fr ${DESTDIR}" 0 2 15 - ( - cd ${DESTDIR} - git clone https://github.com/eggert/tz.git - make --directory=tz \ - install DESTDIR=${DESTDIR} \ - DATAFORM=vanguard \ - TZDIR=/zoneinfo \ - REDO=posix_only \ - LOCALTIME=Factory \ - TZDATA_TEXT= \ - ZONETABLES=zone1970.tab - tar --create --dereference --hard-dereference --file tzfile.tar \ - --directory=tz tzfile.h - tar --create --dereference --hard-dereference --file zoneinfo.tar \ - --exclude=zoneinfo/posixrules zoneinfo \ - --directory=tz version - ) - tar --extract --directory src --file ${DESTDIR}/tzfile.tar - tar --extract --directory testdata --file ${DESTDIR}/zoneinfo.tar - exit 0 - -To run the CCTZ tests using the testdata/zoneinfo files, execute: - - bazel test --test_env=TZDIR=${PWD}/testdata/zoneinfo ... diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/testdata/version b/third_party/abseil_cpp/absl/time/internal/cctz/testdata/version deleted file mode 100644 index 7f680eec36..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/testdata/version +++ /dev/null @@ -1 +0,0 @@ -2020a diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Abidjan b/third_party/abseil_cpp/absl/time/internal/cctz/testdata/zoneinfo/Africa/Abidjan deleted file mode 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a/third_party/abseil_cpp/absl/time/internal/cctz/testdata/zoneinfo/Zulu +++ /dev/null Binary files differdiff --git a/third_party/abseil_cpp/absl/time/internal/cctz/testdata/zoneinfo/iso3166.tab b/third_party/abseil_cpp/absl/time/internal/cctz/testdata/zoneinfo/iso3166.tab deleted file mode 100644 index a4ff61a4d3..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/testdata/zoneinfo/iso3166.tab +++ /dev/null @@ -1,274 +0,0 @@ -# ISO 3166 alpha-2 country codes -# -# This file is in the public domain, so clarified as of -# 2009-05-17 by Arthur David Olson. -# -# From Paul Eggert (2015-05-02): -# This file contains a table of two-letter country codes. Columns are -# separated by a single tab. Lines beginning with '#' are comments. -# All text uses UTF-8 encoding. The columns of the table are as follows: -# -# 1. ISO 3166-1 alpha-2 country code, current as of -# ISO 3166-1 N976 (2018-11-06). See: Updates on ISO 3166-1 -# https://isotc.iso.org/livelink/livelink/Open/16944257 -# 2. The usual English name for the coded region, -# chosen so that alphabetic sorting of subsets produces helpful lists. -# This is not the same as the English name in the ISO 3166 tables. -# -# The table is sorted by country code. -# -# This table is intended as an aid for users, to help them select time -# zone data appropriate for their practical needs. It is not intended -# to take or endorse any position on legal or territorial claims. -# -#country- -#code name of country, territory, area, or subdivision -AD Andorra -AE United Arab Emirates -AF Afghanistan -AG Antigua & Barbuda -AI Anguilla -AL Albania -AM Armenia -AO Angola -AQ Antarctica -AR Argentina -AS Samoa (American) -AT Austria -AU Australia -AW Aruba -AX ร land Islands -AZ Azerbaijan -BA Bosnia & Herzegovina -BB Barbados -BD Bangladesh -BE Belgium -BF Burkina Faso -BG Bulgaria -BH Bahrain -BI Burundi -BJ Benin -BL St Barthelemy -BM Bermuda -BN Brunei -BO Bolivia -BQ Caribbean NL -BR Brazil -BS Bahamas -BT Bhutan -BV Bouvet Island -BW Botswana -BY Belarus -BZ Belize -CA Canada -CC Cocos (Keeling) Islands -CD Congo (Dem. Rep.) -CF Central African Rep. -CG Congo (Rep.) -CH Switzerland -CI Cรดte d'Ivoire -CK Cook Islands -CL Chile -CM Cameroon -CN China -CO Colombia -CR Costa Rica -CU Cuba -CV Cape Verde -CW Curaรงao -CX Christmas Island -CY Cyprus -CZ Czech Republic -DE Germany -DJ Djibouti -DK Denmark -DM Dominica -DO Dominican Republic -DZ Algeria -EC Ecuador -EE Estonia -EG Egypt -EH Western Sahara -ER Eritrea -ES Spain -ET Ethiopia -FI Finland -FJ Fiji -FK Falkland Islands -FM Micronesia -FO Faroe Islands -FR France -GA Gabon -GB Britain (UK) -GD Grenada -GE Georgia -GF French Guiana -GG Guernsey -GH Ghana -GI Gibraltar -GL Greenland -GM Gambia -GN Guinea -GP Guadeloupe -GQ Equatorial Guinea -GR Greece -GS South Georgia & the South Sandwich Islands -GT Guatemala -GU Guam -GW Guinea-Bissau -GY Guyana -HK Hong Kong -HM Heard Island & McDonald Islands -HN Honduras -HR Croatia -HT Haiti -HU Hungary -ID Indonesia -IE Ireland -IL Israel -IM Isle of Man -IN India -IO British Indian Ocean Territory -IQ Iraq -IR Iran -IS Iceland -IT Italy -JE Jersey -JM Jamaica -JO Jordan -JP Japan -KE Kenya -KG Kyrgyzstan -KH Cambodia -KI Kiribati -KM Comoros -KN St Kitts & Nevis -KP Korea (North) -KR Korea (South) -KW Kuwait -KY Cayman Islands -KZ Kazakhstan -LA Laos -LB Lebanon -LC St Lucia -LI Liechtenstein -LK Sri Lanka -LR Liberia -LS Lesotho -LT Lithuania -LU Luxembourg -LV Latvia -LY Libya -MA Morocco -MC Monaco -MD Moldova -ME Montenegro -MF St Martin (French) -MG Madagascar -MH Marshall Islands -MK North Macedonia -ML Mali -MM Myanmar (Burma) -MN Mongolia -MO Macau -MP Northern Mariana Islands -MQ Martinique -MR Mauritania -MS Montserrat -MT Malta -MU Mauritius -MV Maldives -MW Malawi -MX Mexico -MY Malaysia -MZ Mozambique -NA Namibia -NC New Caledonia -NE Niger -NF Norfolk Island -NG Nigeria -NI Nicaragua -NL Netherlands -NO Norway -NP Nepal -NR Nauru -NU Niue -NZ New Zealand -OM Oman -PA Panama -PE Peru -PF French Polynesia -PG Papua New Guinea -PH Philippines -PK Pakistan -PL Poland -PM St Pierre & Miquelon -PN Pitcairn -PR Puerto Rico -PS Palestine -PT Portugal -PW Palau -PY Paraguay -QA Qatar -RE Rรฉunion -RO Romania -RS Serbia -RU Russia -RW Rwanda -SA Saudi Arabia -SB Solomon Islands -SC Seychelles -SD Sudan -SE Sweden -SG Singapore -SH St Helena -SI Slovenia -SJ Svalbard & Jan Mayen -SK Slovakia -SL Sierra Leone -SM San Marino -SN Senegal -SO Somalia -SR Suriname -SS South Sudan -ST Sao Tome & Principe -SV El Salvador -SX St Maarten (Dutch) -SY Syria -SZ Eswatini (Swaziland) -TC Turks & Caicos Is -TD Chad -TF French Southern & Antarctic Lands -TG Togo -TH Thailand -TJ Tajikistan -TK Tokelau -TL East Timor -TM Turkmenistan -TN Tunisia -TO Tonga -TR Turkey -TT Trinidad & Tobago -TV Tuvalu -TW Taiwan -TZ Tanzania -UA Ukraine -UG Uganda -UM US minor outlying islands -US United States -UY Uruguay -UZ Uzbekistan -VA Vatican City -VC St Vincent -VE Venezuela -VG Virgin Islands (UK) -VI Virgin Islands (US) -VN Vietnam -VU Vanuatu -WF Wallis & Futuna -WS Samoa (western) -YE Yemen -YT Mayotte -ZA South Africa -ZM Zambia -ZW Zimbabwe diff --git a/third_party/abseil_cpp/absl/time/internal/cctz/testdata/zoneinfo/localtime b/third_party/abseil_cpp/absl/time/internal/cctz/testdata/zoneinfo/localtime deleted file mode 100644 index afeeb88d06..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/testdata/zoneinfo/localtime +++ /dev/null Binary files differdiff --git a/third_party/abseil_cpp/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab b/third_party/abseil_cpp/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab deleted file mode 100644 index 53ee77e88e..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/cctz/testdata/zoneinfo/zone1970.tab +++ /dev/null @@ -1,384 +0,0 @@ -# tzdb timezone descriptions -# -# This file is in the public domain. -# -# From Paul Eggert (2018-06-27): -# This file contains a table where each row stands for a timezone where -# civil timestamps have agreed since 1970. Columns are separated by -# a single tab. Lines beginning with '#' are comments. All text uses -# UTF-8 encoding. The columns of the table are as follows: -# -# 1. The countries that overlap the timezone, as a comma-separated list -# of ISO 3166 2-character country codes. See the file 'iso3166.tab'. -# 2. Latitude and longitude of the timezone's principal location -# in ISO 6709 sign-degrees-minutes-seconds format, -# either ยฑDDMMยฑDDDMM or ยฑDDMMSSยฑDDDMMSS, -# first latitude (+ is north), then longitude (+ is east). -# 3. Timezone name used in value of TZ environment variable. -# Please see the theory.html file for how these names are chosen. -# If multiple timezones overlap a country, each has a row in the -# table, with each column 1 containing the country code. -# 4. Comments; present if and only if a country has multiple timezones. -# -# If a timezone covers multiple countries, the most-populous city is used, -# and that country is listed first in column 1; any other countries -# are listed alphabetically by country code. The table is sorted -# first by country code, then (if possible) by an order within the -# country that (1) makes some geographical sense, and (2) puts the -# most populous timezones first, where that does not contradict (1). -# -# This table is intended as an aid for users, to help them select timezones -# appropriate for their practical needs. It is not intended to take or -# endorse any position on legal or territorial claims. -# -#country- -#codes coordinates TZ comments -AD +4230+00131 Europe/Andorra -AE,OM +2518+05518 Asia/Dubai -AF +3431+06912 Asia/Kabul -AL +4120+01950 Europe/Tirane -AM +4011+04430 Asia/Yerevan -AQ -6617+11031 Antarctica/Casey Casey -AQ -6835+07758 Antarctica/Davis Davis -AQ -6640+14001 Antarctica/DumontDUrville Dumont-d'Urville -AQ -6736+06253 Antarctica/Mawson Mawson -AQ -6448-06406 Antarctica/Palmer Palmer -AQ -6734-06808 Antarctica/Rothera Rothera -AQ -690022+0393524 Antarctica/Syowa Syowa -AQ -720041+0023206 Antarctica/Troll Troll -AQ -7824+10654 Antarctica/Vostok Vostok -AR -3436-05827 America/Argentina/Buenos_Aires Buenos Aires (BA, CF) -AR -3124-06411 America/Argentina/Cordoba Argentina (most areas: CB, CC, CN, ER, FM, MN, SE, SF) -AR -2447-06525 America/Argentina/Salta Salta (SA, LP, NQ, RN) -AR -2411-06518 America/Argentina/Jujuy Jujuy (JY) -AR -2649-06513 America/Argentina/Tucuman Tucumรกn (TM) -AR -2828-06547 America/Argentina/Catamarca Catamarca (CT); Chubut (CH) -AR -2926-06651 America/Argentina/La_Rioja La Rioja (LR) -AR -3132-06831 America/Argentina/San_Juan San Juan (SJ) -AR -3253-06849 America/Argentina/Mendoza Mendoza (MZ) -AR -3319-06621 America/Argentina/San_Luis San Luis (SL) -AR -5138-06913 America/Argentina/Rio_Gallegos Santa Cruz (SC) -AR -5448-06818 America/Argentina/Ushuaia Tierra del Fuego (TF) -AS,UM -1416-17042 Pacific/Pago_Pago Samoa, Midway -AT +4813+01620 Europe/Vienna -AU -3133+15905 Australia/Lord_Howe Lord Howe Island -AU -5430+15857 Antarctica/Macquarie Macquarie Island -AU -4253+14719 Australia/Hobart Tasmania (most areas) -AU -3956+14352 Australia/Currie Tasmania (King Island) -AU -3749+14458 Australia/Melbourne Victoria -AU -3352+15113 Australia/Sydney New South Wales (most areas) -AU -3157+14127 Australia/Broken_Hill New South Wales (Yancowinna) -AU -2728+15302 Australia/Brisbane Queensland (most areas) -AU -2016+14900 Australia/Lindeman Queensland (Whitsunday Islands) -AU -3455+13835 Australia/Adelaide South Australia -AU -1228+13050 Australia/Darwin Northern Territory -AU -3157+11551 Australia/Perth Western Australia (most areas) -AU -3143+12852 Australia/Eucla Western Australia (Eucla) -AZ +4023+04951 Asia/Baku -BB +1306-05937 America/Barbados -BD +2343+09025 Asia/Dhaka -BE +5050+00420 Europe/Brussels -BG +4241+02319 Europe/Sofia -BM +3217-06446 Atlantic/Bermuda -BN +0456+11455 Asia/Brunei -BO -1630-06809 America/La_Paz -BR -0351-03225 America/Noronha Atlantic islands -BR -0127-04829 America/Belem Parรก (east); Amapรก -BR -0343-03830 America/Fortaleza Brazil (northeast: MA, PI, CE, RN, PB) -BR -0803-03454 America/Recife Pernambuco -BR -0712-04812 America/Araguaina Tocantins -BR -0940-03543 America/Maceio Alagoas, Sergipe -BR -1259-03831 America/Bahia Bahia -BR -2332-04637 America/Sao_Paulo Brazil (southeast: GO, DF, MG, ES, RJ, SP, PR, SC, RS) -BR -2027-05437 America/Campo_Grande Mato Grosso do Sul -BR -1535-05605 America/Cuiaba Mato Grosso -BR -0226-05452 America/Santarem Parรก (west) -BR -0846-06354 America/Porto_Velho Rondรดnia -BR +0249-06040 America/Boa_Vista Roraima -BR -0308-06001 America/Manaus Amazonas (east) -BR -0640-06952 America/Eirunepe Amazonas (west) -BR -0958-06748 America/Rio_Branco Acre -BS +2505-07721 America/Nassau -BT +2728+08939 Asia/Thimphu -BY +5354+02734 Europe/Minsk -BZ +1730-08812 America/Belize -CA +4734-05243 America/St_Johns Newfoundland; Labrador (southeast) -CA +4439-06336 America/Halifax Atlantic - NS (most areas); PE -CA +4612-05957 America/Glace_Bay Atlantic - NS (Cape Breton) -CA +4606-06447 America/Moncton Atlantic - New Brunswick -CA +5320-06025 America/Goose_Bay Atlantic - Labrador (most areas) -CA +5125-05707 America/Blanc-Sablon AST - QC (Lower North Shore) -CA +4339-07923 America/Toronto Eastern - ON, QC (most areas) -CA +4901-08816 America/Nipigon Eastern - ON, QC (no DST 1967-73) -CA +4823-08915 America/Thunder_Bay Eastern - ON (Thunder Bay) -CA +6344-06828 America/Iqaluit Eastern - NU (most east areas) -CA +6608-06544 America/Pangnirtung Eastern - NU (Pangnirtung) -CA +484531-0913718 America/Atikokan EST - ON (Atikokan); NU (Coral H) -CA +4953-09709 America/Winnipeg Central - ON (west); Manitoba -CA +4843-09434 America/Rainy_River Central - ON (Rainy R, Ft Frances) -CA +744144-0944945 America/Resolute Central - NU (Resolute) -CA +624900-0920459 America/Rankin_Inlet Central - NU (central) -CA +5024-10439 America/Regina CST - SK (most areas) -CA +5017-10750 America/Swift_Current CST - SK (midwest) -CA +5333-11328 America/Edmonton Mountain - AB; BC (E); SK (W) -CA +690650-1050310 America/Cambridge_Bay Mountain - NU (west) -CA +6227-11421 America/Yellowknife Mountain - NT (central) -CA +682059-1334300 America/Inuvik Mountain - NT (west) -CA +4906-11631 America/Creston MST - BC (Creston) -CA +5946-12014 America/Dawson_Creek MST - BC (Dawson Cr, Ft St John) -CA +5848-12242 America/Fort_Nelson MST - BC (Ft Nelson) -CA +4916-12307 America/Vancouver Pacific - BC (most areas) -CA +6043-13503 America/Whitehorse Pacific - Yukon (east) -CA +6404-13925 America/Dawson Pacific - Yukon (west) -CC -1210+09655 Indian/Cocos -CH,DE,LI +4723+00832 Europe/Zurich Swiss time -CI,BF,GM,GN,ML,MR,SH,SL,SN,TG +0519-00402 Africa/Abidjan -CK -2114-15946 Pacific/Rarotonga -CL -3327-07040 America/Santiago Chile (most areas) -CL -5309-07055 America/Punta_Arenas Region of Magallanes -CL -2709-10926 Pacific/Easter Easter Island -CN +3114+12128 Asia/Shanghai Beijing Time -CN +4348+08735 Asia/Urumqi Xinjiang Time -CO +0436-07405 America/Bogota -CR +0956-08405 America/Costa_Rica -CU +2308-08222 America/Havana -CV +1455-02331 Atlantic/Cape_Verde -CW,AW,BQ,SX +1211-06900 America/Curacao -CX -1025+10543 Indian/Christmas -CY +3510+03322 Asia/Nicosia Cyprus (most areas) -CY +3507+03357 Asia/Famagusta Northern Cyprus -CZ,SK +5005+01426 Europe/Prague -DE +5230+01322 Europe/Berlin Germany (most areas) -DK +5540+01235 Europe/Copenhagen -DO +1828-06954 America/Santo_Domingo -DZ +3647+00303 Africa/Algiers -EC -0210-07950 America/Guayaquil Ecuador (mainland) -EC -0054-08936 Pacific/Galapagos Galรกpagos Islands -EE +5925+02445 Europe/Tallinn -EG +3003+03115 Africa/Cairo -EH +2709-01312 Africa/El_Aaiun -ES +4024-00341 Europe/Madrid Spain (mainland) -ES +3553-00519 Africa/Ceuta Ceuta, Melilla -ES +2806-01524 Atlantic/Canary Canary Islands -FI,AX +6010+02458 Europe/Helsinki -FJ -1808+17825 Pacific/Fiji -FK -5142-05751 Atlantic/Stanley -FM +0725+15147 Pacific/Chuuk Chuuk/Truk, Yap -FM +0658+15813 Pacific/Pohnpei Pohnpei/Ponape -FM +0519+16259 Pacific/Kosrae Kosrae -FO +6201-00646 Atlantic/Faroe -FR +4852+00220 Europe/Paris -GB,GG,IM,JE +513030-0000731 Europe/London -GE +4143+04449 Asia/Tbilisi -GF +0456-05220 America/Cayenne -GH +0533-00013 Africa/Accra -GI +3608-00521 Europe/Gibraltar -GL +6411-05144 America/Nuuk Greenland (most areas) -GL +7646-01840 America/Danmarkshavn National Park (east coast) -GL +7029-02158 America/Scoresbysund Scoresbysund/Ittoqqortoormiit -GL +7634-06847 America/Thule Thule/Pituffik -GR +3758+02343 Europe/Athens -GS -5416-03632 Atlantic/South_Georgia -GT +1438-09031 America/Guatemala -GU,MP +1328+14445 Pacific/Guam -GW +1151-01535 Africa/Bissau -GY +0648-05810 America/Guyana -HK +2217+11409 Asia/Hong_Kong -HN +1406-08713 America/Tegucigalpa -HT +1832-07220 America/Port-au-Prince -HU +4730+01905 Europe/Budapest -ID -0610+10648 Asia/Jakarta Java, Sumatra -ID -0002+10920 Asia/Pontianak Borneo (west, central) -ID -0507+11924 Asia/Makassar Borneo (east, south); Sulawesi/Celebes, Bali, Nusa Tengarra; Timor (west) -ID -0232+14042 Asia/Jayapura New Guinea (West Papua / Irian Jaya); Malukus/Moluccas -IE +5320-00615 Europe/Dublin -IL +314650+0351326 Asia/Jerusalem -IN +2232+08822 Asia/Kolkata -IO -0720+07225 Indian/Chagos -IQ +3321+04425 Asia/Baghdad -IR +3540+05126 Asia/Tehran -IS +6409-02151 Atlantic/Reykjavik -IT,SM,VA +4154+01229 Europe/Rome -JM +175805-0764736 America/Jamaica -JO +3157+03556 Asia/Amman -JP +353916+1394441 Asia/Tokyo -KE,DJ,ER,ET,KM,MG,SO,TZ,UG,YT -0117+03649 Africa/Nairobi -KG +4254+07436 Asia/Bishkek -KI +0125+17300 Pacific/Tarawa Gilbert Islands -KI -0308-17105 Pacific/Enderbury Phoenix Islands -KI +0152-15720 Pacific/Kiritimati Line Islands -KP +3901+12545 Asia/Pyongyang -KR +3733+12658 Asia/Seoul -KZ +4315+07657 Asia/Almaty Kazakhstan (most areas) -KZ +4448+06528 Asia/Qyzylorda Qyzylorda/Kyzylorda/Kzyl-Orda -KZ +5312+06337 Asia/Qostanay Qostanay/Kostanay/Kustanay -KZ +5017+05710 Asia/Aqtobe Aqtรถbe/Aktobe -KZ +4431+05016 Asia/Aqtau Mangghystaลซ/Mankistau -KZ +4707+05156 Asia/Atyrau Atyraลซ/Atirau/Gur'yev -KZ +5113+05121 Asia/Oral West Kazakhstan -LB +3353+03530 Asia/Beirut -LK +0656+07951 Asia/Colombo -LR +0618-01047 Africa/Monrovia -LT +5441+02519 Europe/Vilnius -LU +4936+00609 Europe/Luxembourg -LV +5657+02406 Europe/Riga -LY +3254+01311 Africa/Tripoli -MA +3339-00735 Africa/Casablanca -MC +4342+00723 Europe/Monaco -MD +4700+02850 Europe/Chisinau -MH +0709+17112 Pacific/Majuro Marshall Islands (most areas) -MH +0905+16720 Pacific/Kwajalein Kwajalein -MM +1647+09610 Asia/Yangon -MN +4755+10653 Asia/Ulaanbaatar Mongolia (most areas) -MN +4801+09139 Asia/Hovd Bayan-รlgii, Govi-Altai, Hovd, Uvs, Zavkhan -MN +4804+11430 Asia/Choibalsan Dornod, Sรผkhbaatar -MO +221150+1133230 Asia/Macau -MQ +1436-06105 America/Martinique -MT +3554+01431 Europe/Malta -MU -2010+05730 Indian/Mauritius -MV +0410+07330 Indian/Maldives -MX +1924-09909 America/Mexico_City Central Time -MX +2105-08646 America/Cancun Eastern Standard Time - Quintana Roo -MX +2058-08937 America/Merida Central Time - Campeche, Yucatรกn -MX +2540-10019 America/Monterrey Central Time - Durango; Coahuila, Nuevo Leรณn, Tamaulipas (most areas) -MX +2550-09730 America/Matamoros Central Time US - Coahuila, Nuevo Leรณn, Tamaulipas (US border) -MX +2313-10625 America/Mazatlan Mountain Time - Baja California Sur, Nayarit, Sinaloa -MX +2838-10605 America/Chihuahua Mountain Time - Chihuahua (most areas) -MX +2934-10425 America/Ojinaga Mountain Time US - Chihuahua (US border) -MX +2904-11058 America/Hermosillo Mountain Standard Time - Sonora -MX +3232-11701 America/Tijuana Pacific Time US - Baja California -MX +2048-10515 America/Bahia_Banderas Central Time - Bahรญa de Banderas -MY +0310+10142 Asia/Kuala_Lumpur Malaysia (peninsula) -MY +0133+11020 Asia/Kuching Sabah, Sarawak -MZ,BI,BW,CD,MW,RW,ZM,ZW -2558+03235 Africa/Maputo Central Africa Time -NA -2234+01706 Africa/Windhoek -NC -2216+16627 Pacific/Noumea -NF -2903+16758 Pacific/Norfolk -NG,AO,BJ,CD,CF,CG,CM,GA,GQ,NE +0627+00324 Africa/Lagos West Africa Time -NI +1209-08617 America/Managua -NL +5222+00454 Europe/Amsterdam -NO,SJ +5955+01045 Europe/Oslo -NP +2743+08519 Asia/Kathmandu -NR -0031+16655 Pacific/Nauru -NU -1901-16955 Pacific/Niue -NZ,AQ -3652+17446 Pacific/Auckland New Zealand time -NZ -4357-17633 Pacific/Chatham Chatham Islands -PA,KY +0858-07932 America/Panama -PE -1203-07703 America/Lima -PF -1732-14934 Pacific/Tahiti Society Islands -PF -0900-13930 Pacific/Marquesas Marquesas Islands -PF -2308-13457 Pacific/Gambier Gambier Islands -PG -0930+14710 Pacific/Port_Moresby Papua New Guinea (most areas) -PG -0613+15534 Pacific/Bougainville Bougainville -PH +1435+12100 Asia/Manila -PK +2452+06703 Asia/Karachi -PL +5215+02100 Europe/Warsaw -PM +4703-05620 America/Miquelon -PN -2504-13005 Pacific/Pitcairn -PR +182806-0660622 America/Puerto_Rico -PS +3130+03428 Asia/Gaza Gaza Strip -PS +313200+0350542 Asia/Hebron West Bank -PT +3843-00908 Europe/Lisbon Portugal (mainland) -PT +3238-01654 Atlantic/Madeira Madeira Islands -PT +3744-02540 Atlantic/Azores Azores -PW +0720+13429 Pacific/Palau -PY -2516-05740 America/Asuncion -QA,BH +2517+05132 Asia/Qatar -RE,TF -2052+05528 Indian/Reunion Rรฉunion, Crozet, Scattered Islands -RO +4426+02606 Europe/Bucharest -RS,BA,HR,ME,MK,SI +4450+02030 Europe/Belgrade -RU +5443+02030 Europe/Kaliningrad MSK-01 - Kaliningrad -RU +554521+0373704 Europe/Moscow MSK+00 - Moscow area -# Mention RU and UA alphabetically. See "territorial claims" above. -RU,UA +4457+03406 Europe/Simferopol Crimea -RU +5836+04939 Europe/Kirov MSK+00 - Kirov -RU +4621+04803 Europe/Astrakhan MSK+01 - Astrakhan -RU +4844+04425 Europe/Volgograd MSK+01 - Volgograd -RU +5134+04602 Europe/Saratov MSK+01 - Saratov -RU +5420+04824 Europe/Ulyanovsk MSK+01 - Ulyanovsk -RU +5312+05009 Europe/Samara MSK+01 - Samara, Udmurtia -RU +5651+06036 Asia/Yekaterinburg MSK+02 - Urals -RU +5500+07324 Asia/Omsk MSK+03 - Omsk -RU +5502+08255 Asia/Novosibirsk MSK+04 - Novosibirsk -RU +5322+08345 Asia/Barnaul MSK+04 - Altai -RU +5630+08458 Asia/Tomsk MSK+04 - Tomsk -RU +5345+08707 Asia/Novokuznetsk MSK+04 - Kemerovo -RU +5601+09250 Asia/Krasnoyarsk MSK+04 - Krasnoyarsk area -RU +5216+10420 Asia/Irkutsk MSK+05 - Irkutsk, Buryatia -RU +5203+11328 Asia/Chita MSK+06 - Zabaykalsky -RU +6200+12940 Asia/Yakutsk MSK+06 - Lena River -RU +623923+1353314 Asia/Khandyga MSK+06 - Tomponsky, Ust-Maysky -RU +4310+13156 Asia/Vladivostok MSK+07 - Amur River -RU +643337+1431336 Asia/Ust-Nera MSK+07 - Oymyakonsky -RU +5934+15048 Asia/Magadan MSK+08 - Magadan -RU +4658+14242 Asia/Sakhalin MSK+08 - Sakhalin Island -RU +6728+15343 Asia/Srednekolymsk MSK+08 - Sakha (E); North Kuril Is -RU +5301+15839 Asia/Kamchatka MSK+09 - Kamchatka -RU +6445+17729 Asia/Anadyr MSK+09 - Bering Sea -SA,KW,YE +2438+04643 Asia/Riyadh -SB -0932+16012 Pacific/Guadalcanal -SC -0440+05528 Indian/Mahe -SD +1536+03232 Africa/Khartoum -SE +5920+01803 Europe/Stockholm -SG +0117+10351 Asia/Singapore -SR +0550-05510 America/Paramaribo -SS +0451+03137 Africa/Juba -ST +0020+00644 Africa/Sao_Tome -SV +1342-08912 America/El_Salvador -SY +3330+03618 Asia/Damascus -TC +2128-07108 America/Grand_Turk -TD +1207+01503 Africa/Ndjamena -TF -492110+0701303 Indian/Kerguelen Kerguelen, St Paul Island, Amsterdam Island -TH,KH,LA,VN +1345+10031 Asia/Bangkok Indochina (most areas) -TJ +3835+06848 Asia/Dushanbe -TK -0922-17114 Pacific/Fakaofo -TL -0833+12535 Asia/Dili -TM +3757+05823 Asia/Ashgabat -TN +3648+01011 Africa/Tunis -TO -2110-17510 Pacific/Tongatapu -TR +4101+02858 Europe/Istanbul -TT,AG,AI,BL,DM,GD,GP,KN,LC,MF,MS,VC,VG,VI +1039-06131 America/Port_of_Spain -TV -0831+17913 Pacific/Funafuti -TW +2503+12130 Asia/Taipei -UA +5026+03031 Europe/Kiev Ukraine (most areas) -UA +4837+02218 Europe/Uzhgorod Transcarpathia -UA +4750+03510 Europe/Zaporozhye Zaporozhye and east Lugansk -UM +1917+16637 Pacific/Wake Wake Island -US +404251-0740023 America/New_York Eastern (most areas) -US +421953-0830245 America/Detroit Eastern - MI (most areas) -US +381515-0854534 America/Kentucky/Louisville Eastern - KY (Louisville area) -US +364947-0845057 America/Kentucky/Monticello Eastern - KY (Wayne) -US +394606-0860929 America/Indiana/Indianapolis Eastern - IN (most areas) -US +384038-0873143 America/Indiana/Vincennes Eastern - IN (Da, Du, K, Mn) -US +410305-0863611 America/Indiana/Winamac Eastern - IN (Pulaski) -US +382232-0862041 America/Indiana/Marengo Eastern - IN (Crawford) -US +382931-0871643 America/Indiana/Petersburg Eastern - IN (Pike) -US +384452-0850402 America/Indiana/Vevay Eastern - IN (Switzerland) -US +415100-0873900 America/Chicago Central (most areas) -US +375711-0864541 America/Indiana/Tell_City Central - IN (Perry) -US +411745-0863730 America/Indiana/Knox Central - IN (Starke) -US +450628-0873651 America/Menominee Central - MI (Wisconsin border) -US +470659-1011757 America/North_Dakota/Center Central - ND (Oliver) -US +465042-1012439 America/North_Dakota/New_Salem Central - ND (Morton rural) -US +471551-1014640 America/North_Dakota/Beulah Central - ND (Mercer) -US +394421-1045903 America/Denver Mountain (most areas) -US +433649-1161209 America/Boise Mountain - ID (south); OR (east) -US +332654-1120424 America/Phoenix MST - Arizona (except Navajo) -US +340308-1181434 America/Los_Angeles Pacific -US +611305-1495401 America/Anchorage Alaska (most areas) -US +581807-1342511 America/Juneau Alaska - Juneau area -US +571035-1351807 America/Sitka Alaska - Sitka area -US +550737-1313435 America/Metlakatla Alaska - Annette Island -US +593249-1394338 America/Yakutat Alaska - Yakutat -US +643004-1652423 America/Nome Alaska (west) -US +515248-1763929 America/Adak Aleutian Islands -US,UM +211825-1575130 Pacific/Honolulu Hawaii -UY -345433-0561245 America/Montevideo -UZ +3940+06648 Asia/Samarkand Uzbekistan (west) -UZ +4120+06918 Asia/Tashkent Uzbekistan (east) -VE +1030-06656 America/Caracas -VN +1045+10640 Asia/Ho_Chi_Minh Vietnam (south) -VU -1740+16825 Pacific/Efate -WF -1318-17610 Pacific/Wallis -WS -1350-17144 Pacific/Apia -ZA,LS,SZ -2615+02800 Africa/Johannesburg diff --git a/third_party/abseil_cpp/absl/time/internal/get_current_time_chrono.inc b/third_party/abseil_cpp/absl/time/internal/get_current_time_chrono.inc deleted file mode 100644 index 5eeb6406aa..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/get_current_time_chrono.inc +++ /dev/null @@ -1,31 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include <chrono> -#include <cstdint> - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { - -static int64_t GetCurrentTimeNanosFromSystem() { - return std::chrono::duration_cast<std::chrono::nanoseconds>( - std::chrono::system_clock::now() - - std::chrono::system_clock::from_time_t(0)) - .count(); -} - -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/get_current_time_posix.inc b/third_party/abseil_cpp/absl/time/internal/get_current_time_posix.inc deleted file mode 100644 index 42072000ae..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/get_current_time_posix.inc +++ /dev/null @@ -1,24 +0,0 @@ -#include "absl/time/clock.h" - -#include <sys/time.h> -#include <ctime> -#include <cstdint> - -#include "absl/base/internal/raw_logging.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { - -static int64_t GetCurrentTimeNanosFromSystem() { - const int64_t kNanosPerSecond = 1000 * 1000 * 1000; - struct timespec ts; - ABSL_RAW_CHECK(clock_gettime(CLOCK_REALTIME, &ts) == 0, - "Failed to read real-time clock."); - return (int64_t{ts.tv_sec} * kNanosPerSecond + - int64_t{ts.tv_nsec}); -} - -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/test_util.cc b/third_party/abseil_cpp/absl/time/internal/test_util.cc deleted file mode 100644 index 9bffe121da..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/test_util.cc +++ /dev/null @@ -1,130 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/internal/test_util.h" - -#include <algorithm> -#include <cstddef> -#include <cstring> - -#include "absl/base/internal/raw_logging.h" -#include "absl/time/internal/cctz/include/cctz/zone_info_source.h" - -namespace cctz = absl::time_internal::cctz; - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { - -TimeZone LoadTimeZone(const std::string& name) { - TimeZone tz; - ABSL_RAW_CHECK(LoadTimeZone(name, &tz), name.c_str()); - return tz; -} - -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { -namespace cctz_extension { -namespace { - -// Embed the zoneinfo data for time zones used during tests and benchmarks. -// The data was generated using "xxd -i zoneinfo-file". There is no need -// to update the data as long as the tests do not depend on recent changes -// (and the past rules remain the same). -#include "absl/time/internal/zoneinfo.inc" - -const struct ZoneInfo { - const char* name; - const char* data; - std::size_t length; -} kZoneInfo[] = { - // The three real time zones used by :time_test and :time_benchmark. - {"America/Los_Angeles", // - reinterpret_cast<char*>(America_Los_Angeles), America_Los_Angeles_len}, - {"America/New_York", // - reinterpret_cast<char*>(America_New_York), America_New_York_len}, - {"Australia/Sydney", // - reinterpret_cast<char*>(Australia_Sydney), Australia_Sydney_len}, - - // Other zones named in tests but which should fail to load. - {"Invalid/TimeZone", nullptr, 0}, - {"", nullptr, 0}, - - // Also allow for loading the local time zone under TZ=US/Pacific. - {"US/Pacific", // - reinterpret_cast<char*>(America_Los_Angeles), America_Los_Angeles_len}, - - // Allows use of the local time zone from a system-specific location. -#ifdef _MSC_VER - {"localtime", // - reinterpret_cast<char*>(America_Los_Angeles), America_Los_Angeles_len}, -#else - {"/etc/localtime", // - reinterpret_cast<char*>(America_Los_Angeles), America_Los_Angeles_len}, -#endif -}; - -class TestZoneInfoSource : public cctz::ZoneInfoSource { - public: - TestZoneInfoSource(const char* data, std::size_t size) - : data_(data), end_(data + size) {} - - std::size_t Read(void* ptr, std::size_t size) override { - const std::size_t len = std::min<std::size_t>(size, end_ - data_); - memcpy(ptr, data_, len); - data_ += len; - return len; - } - - int Skip(std::size_t offset) override { - data_ += std::min<std::size_t>(offset, end_ - data_); - return 0; - } - - private: - const char* data_; - const char* const end_; -}; - -std::unique_ptr<cctz::ZoneInfoSource> TestFactory( - const std::string& name, - const std::function<std::unique_ptr<cctz::ZoneInfoSource>( - const std::string& name)>& /*fallback_factory*/) { - for (const ZoneInfo& zoneinfo : kZoneInfo) { - if (name == zoneinfo.name) { - if (zoneinfo.data == nullptr) return nullptr; - return std::unique_ptr<cctz::ZoneInfoSource>( - new TestZoneInfoSource(zoneinfo.data, zoneinfo.length)); - } - } - ABSL_RAW_LOG(FATAL, "Unexpected time zone \"%s\" in test", name.c_str()); - return nullptr; -} - -} // namespace - -#if !defined(__MINGW32__) -// MinGW does not support the weak symbol extension mechanism. -ZoneInfoSourceFactory zone_info_source_factory = TestFactory; -#endif - -} // namespace cctz_extension -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/internal/test_util.h b/third_party/abseil_cpp/absl/time/internal/test_util.h deleted file mode 100644 index 5c4bf1f680..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/test_util.h +++ /dev/null @@ -1,33 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#ifndef ABSL_TIME_INTERNAL_TEST_UTIL_H_ -#define ABSL_TIME_INTERNAL_TEST_UTIL_H_ - -#include <string> - -#include "absl/time/time.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN -namespace time_internal { - -// Loads the named timezone, but dies on any failure. -absl::TimeZone LoadTimeZone(const std::string& name); - -} // namespace time_internal -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_TIME_INTERNAL_TEST_UTIL_H_ diff --git a/third_party/abseil_cpp/absl/time/internal/zoneinfo.inc b/third_party/abseil_cpp/absl/time/internal/zoneinfo.inc deleted file mode 100644 index bfed82990d..0000000000 --- a/third_party/abseil_cpp/absl/time/internal/zoneinfo.inc +++ /dev/null @@ -1,729 +0,0 @@ -unsigned char America_Los_Angeles[] = { - 0x54, 0x5a, 0x69, 0x66, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, - 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xba, - 0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x14, 0x80, 0x00, 0x00, 0x00, - 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0x53, 0x54, 0x2d, 0x31, 0x30, 0x41, 0x45, 0x44, 0x54, 0x2c, 0x4d, 0x31, - 0x30, 0x2e, 0x31, 0x2e, 0x30, 0x2c, 0x4d, 0x34, 0x2e, 0x31, 0x2e, 0x30, - 0x2f, 0x33, 0x0a -}; -unsigned int Australia_Sydney_len = 2223; diff --git a/third_party/abseil_cpp/absl/time/time.cc b/third_party/abseil_cpp/absl/time/time.cc deleted file mode 100644 index 6bb36cb3e7..0000000000 --- a/third_party/abseil_cpp/absl/time/time.cc +++ /dev/null @@ -1,499 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -// The implementation of the absl::Time class, which is declared in -// //absl/time.h. -// -// The representation for an absl::Time is an absl::Duration offset from the -// epoch. We use the traditional Unix epoch (1970-01-01 00:00:00 +0000) -// for convenience, but this is not exposed in the API and could be changed. -// -// NOTE: To keep type verbosity to a minimum, the following variable naming -// conventions are used throughout this file. -// -// tz: An absl::TimeZone -// ci: An absl::TimeZone::CivilInfo -// ti: An absl::TimeZone::TimeInfo -// cd: An absl::CivilDay or a cctz::civil_day -// cs: An absl::CivilSecond or a cctz::civil_second -// bd: An absl::Time::Breakdown -// cl: A cctz::time_zone::civil_lookup -// al: A cctz::time_zone::absolute_lookup - -#include "absl/time/time.h" - -#if defined(_MSC_VER) -#include <winsock2.h> // for timeval -#endif - -#include <cstring> -#include <ctime> -#include <limits> - -#include "absl/time/internal/cctz/include/cctz/civil_time.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" - -namespace cctz = absl::time_internal::cctz; - -namespace absl { -ABSL_NAMESPACE_BEGIN - -namespace { - -inline cctz::time_point<cctz::seconds> unix_epoch() { - return std::chrono::time_point_cast<cctz::seconds>( - std::chrono::system_clock::from_time_t(0)); -} - -// Floors d to the next unit boundary closer to negative infinity. -inline int64_t FloorToUnit(absl::Duration d, absl::Duration unit) { - absl::Duration rem; - int64_t q = absl::IDivDuration(d, unit, &rem); - return (q > 0 || - rem >= ZeroDuration() || - q == std::numeric_limits<int64_t>::min()) ? q : q - 1; -} - -inline absl::Time::Breakdown InfiniteFutureBreakdown() { - absl::Time::Breakdown bd; - bd.year = std::numeric_limits<int64_t>::max(); - bd.month = 12; - bd.day = 31; - bd.hour = 23; - bd.minute = 59; - bd.second = 59; - bd.subsecond = absl::InfiniteDuration(); - bd.weekday = 4; - bd.yearday = 365; - bd.offset = 0; - bd.is_dst = false; - bd.zone_abbr = "-00"; - return bd; -} - -inline absl::Time::Breakdown InfinitePastBreakdown() { - Time::Breakdown bd; - bd.year = std::numeric_limits<int64_t>::min(); - bd.month = 1; - bd.day = 1; - bd.hour = 0; - bd.minute = 0; - bd.second = 0; - bd.subsecond = -absl::InfiniteDuration(); - bd.weekday = 7; - bd.yearday = 1; - bd.offset = 0; - bd.is_dst = false; - bd.zone_abbr = "-00"; - return bd; -} - -inline absl::TimeZone::CivilInfo InfiniteFutureCivilInfo() { - TimeZone::CivilInfo ci; - ci.cs = CivilSecond::max(); - ci.subsecond = InfiniteDuration(); - ci.offset = 0; - ci.is_dst = false; - ci.zone_abbr = "-00"; - return ci; -} - -inline absl::TimeZone::CivilInfo InfinitePastCivilInfo() { - TimeZone::CivilInfo ci; - ci.cs = CivilSecond::min(); - ci.subsecond = -InfiniteDuration(); - ci.offset = 0; - ci.is_dst = false; - ci.zone_abbr = "-00"; - return ci; -} - -inline absl::TimeConversion InfiniteFutureTimeConversion() { - absl::TimeConversion tc; - tc.pre = tc.trans = tc.post = absl::InfiniteFuture(); - tc.kind = absl::TimeConversion::UNIQUE; - tc.normalized = true; - return tc; -} - -inline TimeConversion InfinitePastTimeConversion() { - absl::TimeConversion tc; - tc.pre = tc.trans = tc.post = absl::InfinitePast(); - tc.kind = absl::TimeConversion::UNIQUE; - tc.normalized = true; - return tc; -} - -// Makes a Time from sec, overflowing to InfiniteFuture/InfinitePast as -// necessary. If sec is min/max, then consult cs+tz to check for overlow. -Time MakeTimeWithOverflow(const cctz::time_point<cctz::seconds>& sec, - const cctz::civil_second& cs, - const cctz::time_zone& tz, - bool* normalized = nullptr) { - const auto max = cctz::time_point<cctz::seconds>::max(); - const auto min = cctz::time_point<cctz::seconds>::min(); - if (sec == max) { - const auto al = tz.lookup(max); - if (cs > al.cs) { - if (normalized) *normalized = true; - return absl::InfiniteFuture(); - } - } - if (sec == min) { - const auto al = tz.lookup(min); - if (cs < al.cs) { - if (normalized) *normalized = true; - return absl::InfinitePast(); - } - } - const auto hi = (sec - unix_epoch()).count(); - return time_internal::FromUnixDuration(time_internal::MakeDuration(hi)); -} - -// Returns Mon=1..Sun=7. -inline int MapWeekday(const cctz::weekday& wd) { - switch (wd) { - case cctz::weekday::monday: - return 1; - case cctz::weekday::tuesday: - return 2; - case cctz::weekday::wednesday: - return 3; - case cctz::weekday::thursday: - return 4; - case cctz::weekday::friday: - return 5; - case cctz::weekday::saturday: - return 6; - case cctz::weekday::sunday: - return 7; - } - return 1; -} - -bool FindTransition(const cctz::time_zone& tz, - bool (cctz::time_zone::*find_transition)( - const cctz::time_point<cctz::seconds>& tp, - cctz::time_zone::civil_transition* trans) const, - Time t, TimeZone::CivilTransition* trans) { - // Transitions are second-aligned, so we can discard any fractional part. - const auto tp = unix_epoch() + cctz::seconds(ToUnixSeconds(t)); - cctz::time_zone::civil_transition tr; - if (!(tz.*find_transition)(tp, &tr)) return false; - trans->from = CivilSecond(tr.from); - trans->to = CivilSecond(tr.to); - return true; -} - -} // namespace - -// -// Time -// - -absl::Time::Breakdown Time::In(absl::TimeZone tz) const { - if (*this == absl::InfiniteFuture()) return InfiniteFutureBreakdown(); - if (*this == absl::InfinitePast()) return InfinitePastBreakdown(); - - const auto tp = unix_epoch() + cctz::seconds(time_internal::GetRepHi(rep_)); - const auto al = cctz::time_zone(tz).lookup(tp); - const auto cs = al.cs; - const auto cd = cctz::civil_day(cs); - - absl::Time::Breakdown bd; - bd.year = cs.year(); - bd.month = cs.month(); - bd.day = cs.day(); - bd.hour = cs.hour(); - bd.minute = cs.minute(); - bd.second = cs.second(); - bd.subsecond = time_internal::MakeDuration(0, time_internal::GetRepLo(rep_)); - bd.weekday = MapWeekday(cctz::get_weekday(cd)); - bd.yearday = cctz::get_yearday(cd); - bd.offset = al.offset; - bd.is_dst = al.is_dst; - bd.zone_abbr = al.abbr; - return bd; -} - -// -// Conversions from/to other time types. -// - -absl::Time FromUDate(double udate) { - return time_internal::FromUnixDuration(absl::Milliseconds(udate)); -} - -absl::Time FromUniversal(int64_t universal) { - return absl::UniversalEpoch() + 100 * absl::Nanoseconds(universal); -} - -int64_t ToUnixNanos(Time t) { - if (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >= 0 && - time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >> 33 == 0) { - return (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) * - 1000 * 1000 * 1000) + - (time_internal::GetRepLo(time_internal::ToUnixDuration(t)) / 4); - } - return FloorToUnit(time_internal::ToUnixDuration(t), absl::Nanoseconds(1)); -} - -int64_t ToUnixMicros(Time t) { - if (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >= 0 && - time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >> 43 == 0) { - return (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) * - 1000 * 1000) + - (time_internal::GetRepLo(time_internal::ToUnixDuration(t)) / 4000); - } - return FloorToUnit(time_internal::ToUnixDuration(t), absl::Microseconds(1)); -} - -int64_t ToUnixMillis(Time t) { - if (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >= 0 && - time_internal::GetRepHi(time_internal::ToUnixDuration(t)) >> 53 == 0) { - return (time_internal::GetRepHi(time_internal::ToUnixDuration(t)) * 1000) + - (time_internal::GetRepLo(time_internal::ToUnixDuration(t)) / - (4000 * 1000)); - } - return FloorToUnit(time_internal::ToUnixDuration(t), absl::Milliseconds(1)); -} - -int64_t ToUnixSeconds(Time t) { - return time_internal::GetRepHi(time_internal::ToUnixDuration(t)); -} - -time_t ToTimeT(Time t) { return absl::ToTimespec(t).tv_sec; } - -double ToUDate(Time t) { - return absl::FDivDuration(time_internal::ToUnixDuration(t), - absl::Milliseconds(1)); -} - -int64_t ToUniversal(absl::Time t) { - return absl::FloorToUnit(t - absl::UniversalEpoch(), absl::Nanoseconds(100)); -} - -absl::Time TimeFromTimespec(timespec ts) { - return time_internal::FromUnixDuration(absl::DurationFromTimespec(ts)); -} - -absl::Time TimeFromTimeval(timeval tv) { - return time_internal::FromUnixDuration(absl::DurationFromTimeval(tv)); -} - -timespec ToTimespec(Time t) { - timespec ts; - absl::Duration d = time_internal::ToUnixDuration(t); - if (!time_internal::IsInfiniteDuration(d)) { - ts.tv_sec = time_internal::GetRepHi(d); - if (ts.tv_sec == time_internal::GetRepHi(d)) { // no time_t narrowing - ts.tv_nsec = time_internal::GetRepLo(d) / 4; // floor - return ts; - } - } - if (d >= absl::ZeroDuration()) { - ts.tv_sec = std::numeric_limits<time_t>::max(); - ts.tv_nsec = 1000 * 1000 * 1000 - 1; - } else { - ts.tv_sec = std::numeric_limits<time_t>::min(); - ts.tv_nsec = 0; - } - return ts; -} - -timeval ToTimeval(Time t) { - timeval tv; - timespec ts = absl::ToTimespec(t); - tv.tv_sec = ts.tv_sec; - if (tv.tv_sec != ts.tv_sec) { // narrowing - if (ts.tv_sec < 0) { - tv.tv_sec = std::numeric_limits<decltype(tv.tv_sec)>::min(); - tv.tv_usec = 0; - } else { - tv.tv_sec = std::numeric_limits<decltype(tv.tv_sec)>::max(); - tv.tv_usec = 1000 * 1000 - 1; - } - return tv; - } - tv.tv_usec = static_cast<int>(ts.tv_nsec / 1000); // suseconds_t - return tv; -} - -Time FromChrono(const std::chrono::system_clock::time_point& tp) { - return time_internal::FromUnixDuration(time_internal::FromChrono( - tp - std::chrono::system_clock::from_time_t(0))); -} - -std::chrono::system_clock::time_point ToChronoTime(absl::Time t) { - using D = std::chrono::system_clock::duration; - auto d = time_internal::ToUnixDuration(t); - if (d < ZeroDuration()) d = Floor(d, FromChrono(D{1})); - return std::chrono::system_clock::from_time_t(0) + - time_internal::ToChronoDuration<D>(d); -} - -// -// TimeZone -// - -absl::TimeZone::CivilInfo TimeZone::At(Time t) const { - if (t == absl::InfiniteFuture()) return InfiniteFutureCivilInfo(); - if (t == absl::InfinitePast()) return InfinitePastCivilInfo(); - - const auto ud = time_internal::ToUnixDuration(t); - const auto tp = unix_epoch() + cctz::seconds(time_internal::GetRepHi(ud)); - const auto al = cz_.lookup(tp); - - TimeZone::CivilInfo ci; - ci.cs = CivilSecond(al.cs); - ci.subsecond = time_internal::MakeDuration(0, time_internal::GetRepLo(ud)); - ci.offset = al.offset; - ci.is_dst = al.is_dst; - ci.zone_abbr = al.abbr; - return ci; -} - -absl::TimeZone::TimeInfo TimeZone::At(CivilSecond ct) const { - const cctz::civil_second cs(ct); - const auto cl = cz_.lookup(cs); - - TimeZone::TimeInfo ti; - switch (cl.kind) { - case cctz::time_zone::civil_lookup::UNIQUE: - ti.kind = TimeZone::TimeInfo::UNIQUE; - break; - case cctz::time_zone::civil_lookup::SKIPPED: - ti.kind = TimeZone::TimeInfo::SKIPPED; - break; - case cctz::time_zone::civil_lookup::REPEATED: - ti.kind = TimeZone::TimeInfo::REPEATED; - break; - } - ti.pre = MakeTimeWithOverflow(cl.pre, cs, cz_); - ti.trans = MakeTimeWithOverflow(cl.trans, cs, cz_); - ti.post = MakeTimeWithOverflow(cl.post, cs, cz_); - return ti; -} - -bool TimeZone::NextTransition(Time t, CivilTransition* trans) const { - return FindTransition(cz_, &cctz::time_zone::next_transition, t, trans); -} - -bool TimeZone::PrevTransition(Time t, CivilTransition* trans) const { - return FindTransition(cz_, &cctz::time_zone::prev_transition, t, trans); -} - -// -// Conversions involving time zones. -// - -absl::TimeConversion ConvertDateTime(int64_t year, int mon, int day, int hour, - int min, int sec, TimeZone tz) { - // Avoids years that are too extreme for CivilSecond to normalize. - if (year > 300000000000) return InfiniteFutureTimeConversion(); - if (year < -300000000000) return InfinitePastTimeConversion(); - - const CivilSecond cs(year, mon, day, hour, min, sec); - const auto ti = tz.At(cs); - - TimeConversion tc; - tc.pre = ti.pre; - tc.trans = ti.trans; - tc.post = ti.post; - switch (ti.kind) { - case TimeZone::TimeInfo::UNIQUE: - tc.kind = TimeConversion::UNIQUE; - break; - case TimeZone::TimeInfo::SKIPPED: - tc.kind = TimeConversion::SKIPPED; - break; - case TimeZone::TimeInfo::REPEATED: - tc.kind = TimeConversion::REPEATED; - break; - } - tc.normalized = false; - if (year != cs.year() || mon != cs.month() || day != cs.day() || - hour != cs.hour() || min != cs.minute() || sec != cs.second()) { - tc.normalized = true; - } - return tc; -} - -absl::Time FromTM(const struct tm& tm, absl::TimeZone tz) { - civil_year_t tm_year = tm.tm_year; - // Avoids years that are too extreme for CivilSecond to normalize. - if (tm_year > 300000000000ll) return InfiniteFuture(); - if (tm_year < -300000000000ll) return InfinitePast(); - int tm_mon = tm.tm_mon; - if (tm_mon == std::numeric_limits<int>::max()) { - tm_mon -= 12; - tm_year += 1; - } - const auto ti = tz.At(CivilSecond(tm_year + 1900, tm_mon + 1, tm.tm_mday, - tm.tm_hour, tm.tm_min, tm.tm_sec)); - return tm.tm_isdst == 0 ? ti.post : ti.pre; -} - -struct tm ToTM(absl::Time t, absl::TimeZone tz) { - struct tm tm = {}; - - const auto ci = tz.At(t); - const auto& cs = ci.cs; - tm.tm_sec = cs.second(); - tm.tm_min = cs.minute(); - tm.tm_hour = cs.hour(); - tm.tm_mday = cs.day(); - tm.tm_mon = cs.month() - 1; - - // Saturates tm.tm_year in cases of over/underflow, accounting for the fact - // that tm.tm_year is years since 1900. - if (cs.year() < std::numeric_limits<int>::min() + 1900) { - tm.tm_year = std::numeric_limits<int>::min(); - } else if (cs.year() > std::numeric_limits<int>::max()) { - tm.tm_year = std::numeric_limits<int>::max() - 1900; - } else { - tm.tm_year = static_cast<int>(cs.year() - 1900); - } - - switch (GetWeekday(cs)) { - case Weekday::sunday: - tm.tm_wday = 0; - break; - case Weekday::monday: - tm.tm_wday = 1; - break; - case Weekday::tuesday: - tm.tm_wday = 2; - break; - case Weekday::wednesday: - tm.tm_wday = 3; - break; - case Weekday::thursday: - tm.tm_wday = 4; - break; - case Weekday::friday: - tm.tm_wday = 5; - break; - case Weekday::saturday: - tm.tm_wday = 6; - break; - } - tm.tm_yday = GetYearDay(cs) - 1; - tm.tm_isdst = ci.is_dst ? 1 : 0; - - return tm; -} - -ABSL_NAMESPACE_END -} // namespace absl diff --git a/third_party/abseil_cpp/absl/time/time.h b/third_party/abseil_cpp/absl/time/time.h deleted file mode 100644 index 37f6131dd8..0000000000 --- a/third_party/abseil_cpp/absl/time/time.h +++ /dev/null @@ -1,1583 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. -// -// ----------------------------------------------------------------------------- -// File: time.h -// ----------------------------------------------------------------------------- -// -// This header file defines abstractions for computing with absolute points -// in time, durations of time, and formatting and parsing time within a given -// time zone. The following abstractions are defined: -// -// * `absl::Time` defines an absolute, specific instance in time -// * `absl::Duration` defines a signed, fixed-length span of time -// * `absl::TimeZone` defines geopolitical time zone regions (as collected -// within the IANA Time Zone database (https://www.iana.org/time-zones)). -// -// Note: Absolute times are distinct from civil times, which refer to the -// human-scale time commonly represented by `YYYY-MM-DD hh:mm:ss`. The mapping -// between absolute and civil times can be specified by use of time zones -// (`absl::TimeZone` within this API). That is: -// -// Civil Time = F(Absolute Time, Time Zone) -// Absolute Time = G(Civil Time, Time Zone) -// -// See civil_time.h for abstractions related to constructing and manipulating -// civil time. -// -// Example: -// -// absl::TimeZone nyc; -// // LoadTimeZone() may fail so it's always better to check for success. -// if (!absl::LoadTimeZone("America/New_York", &nyc)) { -// // handle error case -// } -// -// // My flight leaves NYC on Jan 2, 2017 at 03:04:05 -// absl::CivilSecond cs(2017, 1, 2, 3, 4, 5); -// absl::Time takeoff = absl::FromCivil(cs, nyc); -// -// absl::Duration flight_duration = absl::Hours(21) + absl::Minutes(35); -// absl::Time landing = takeoff + flight_duration; -// -// absl::TimeZone syd; -// if (!absl::LoadTimeZone("Australia/Sydney", &syd)) { -// // handle error case -// } -// std::string s = absl::FormatTime( -// "My flight will land in Sydney on %Y-%m-%d at %H:%M:%S", -// landing, syd); - -#ifndef ABSL_TIME_TIME_H_ -#define ABSL_TIME_TIME_H_ - -#if !defined(_MSC_VER) -#include <sys/time.h> -#else -// We don't include `winsock2.h` because it drags in `windows.h` and friends, -// and they define conflicting macros like OPAQUE, ERROR, and more. This has the -// potential to break Abseil users. -// -// Instead we only forward declare `timeval` and require Windows users include -// `winsock2.h` themselves. This is both inconsistent and troublesome, but so is -// including 'windows.h' so we are picking the lesser of two evils here. -struct timeval; -#endif -#include <chrono> // NOLINT(build/c++11) -#include <cmath> -#include <cstdint> -#include <ctime> -#include <ostream> -#include <string> -#include <type_traits> -#include <utility> - -#include "absl/base/macros.h" -#include "absl/strings/string_view.h" -#include "absl/time/civil_time.h" -#include "absl/time/internal/cctz/include/cctz/time_zone.h" - -namespace absl { -ABSL_NAMESPACE_BEGIN - -class Duration; // Defined below -class Time; // Defined below -class TimeZone; // Defined below - -namespace time_internal { -int64_t IDivDuration(bool satq, Duration num, Duration den, Duration* rem); -constexpr Time FromUnixDuration(Duration d); -constexpr Duration ToUnixDuration(Time t); -constexpr int64_t GetRepHi(Duration d); -constexpr uint32_t GetRepLo(Duration d); -constexpr Duration MakeDuration(int64_t hi, uint32_t lo); -constexpr Duration MakeDuration(int64_t hi, int64_t lo); -inline Duration MakePosDoubleDuration(double n); -constexpr int64_t kTicksPerNanosecond = 4; -constexpr int64_t kTicksPerSecond = 1000 * 1000 * 1000 * kTicksPerNanosecond; -template <std::intmax_t N> -constexpr Duration FromInt64(int64_t v, std::ratio<1, N>); -constexpr Duration FromInt64(int64_t v, std::ratio<60>); -constexpr Duration FromInt64(int64_t v, std::ratio<3600>); -template <typename T> -using EnableIfIntegral = typename std::enable_if< - std::is_integral<T>::value || std::is_enum<T>::value, int>::type; -template <typename T> -using EnableIfFloat = - typename std::enable_if<std::is_floating_point<T>::value, int>::type; -} // namespace time_internal - -// Duration -// -// The `absl::Duration` class represents a signed, fixed-length span of time. -// A `Duration` is generated using a unit-specific factory function, or is -// the result of subtracting one `absl::Time` from another. Durations behave -// like unit-safe integers and they support all the natural integer-like -// arithmetic operations. Arithmetic overflows and saturates at +/- infinity. -// `Duration` should be passed by value rather than const reference. -// -// Factory functions `Nanoseconds()`, `Microseconds()`, `Milliseconds()`, -// `Seconds()`, `Minutes()`, `Hours()` and `InfiniteDuration()` allow for -// creation of constexpr `Duration` values -// -// Examples: -// -// constexpr absl::Duration ten_ns = absl::Nanoseconds(10); -// constexpr absl::Duration min = absl::Minutes(1); -// constexpr absl::Duration hour = absl::Hours(1); -// absl::Duration dur = 60 * min; // dur == hour -// absl::Duration half_sec = absl::Milliseconds(500); -// absl::Duration quarter_sec = 0.25 * absl::Seconds(1); -// -// `Duration` values can be easily converted to an integral number of units -// using the division operator. -// -// Example: -// -// constexpr absl::Duration dur = absl::Milliseconds(1500); -// int64_t ns = dur / absl::Nanoseconds(1); // ns == 1500000000 -// int64_t ms = dur / absl::Milliseconds(1); // ms == 1500 -// int64_t sec = dur / absl::Seconds(1); // sec == 1 (subseconds truncated) -// int64_t min = dur / absl::Minutes(1); // min == 0 -// -// See the `IDivDuration()` and `FDivDuration()` functions below for details on -// how to access the fractional parts of the quotient. -// -// Alternatively, conversions can be performed using helpers such as -// `ToInt64Microseconds()` and `ToDoubleSeconds()`. -class Duration { - public: - // Value semantics. - constexpr Duration() : rep_hi_(0), rep_lo_(0) {} // zero-length duration - - // Copyable. -#if !defined(__clang__) && defined(_MSC_VER) && _MSC_VER < 1910 - // Explicitly defining the constexpr copy constructor avoids an MSVC bug. - constexpr Duration(const Duration& d) - : rep_hi_(d.rep_hi_), rep_lo_(d.rep_lo_) {} -#else - constexpr Duration(const Duration& d) = default; -#endif - Duration& operator=(const Duration& d) = default; - - // Compound assignment operators. - Duration& operator+=(Duration d); - Duration& operator-=(Duration d); - Duration& operator*=(int64_t r); - Duration& operator*=(double r); - Duration& operator/=(int64_t r); - Duration& operator/=(double r); - Duration& operator%=(Duration rhs); - - // Overloads that forward to either the int64_t or double overloads above. - // Integer operands must be representable as int64_t. - template <typename T> - Duration& operator*=(T r) { - int64_t x = r; - return *this *= x; - } - template <typename T> - Duration& operator/=(T r) { - int64_t x = r; - return *this /= x; - } - Duration& operator*=(float r) { return *this *= static_cast<double>(r); } - Duration& operator/=(float r) { return *this /= static_cast<double>(r); } - - template <typename H> - friend H AbslHashValue(H h, Duration d) { - return H::combine(std::move(h), d.rep_hi_, d.rep_lo_); - } - - private: - friend constexpr int64_t time_internal::GetRepHi(Duration d); - friend constexpr uint32_t time_internal::GetRepLo(Duration d); - friend constexpr Duration time_internal::MakeDuration(int64_t hi, - uint32_t lo); - constexpr Duration(int64_t hi, uint32_t lo) : rep_hi_(hi), rep_lo_(lo) {} - int64_t rep_hi_; - uint32_t rep_lo_; -}; - -// Relational Operators -constexpr bool operator<(Duration lhs, Duration rhs); -constexpr bool operator>(Duration lhs, Duration rhs) { return rhs < lhs; } -constexpr bool operator>=(Duration lhs, Duration rhs) { return !(lhs < rhs); } -constexpr bool operator<=(Duration lhs, Duration rhs) { return !(rhs < lhs); } -constexpr bool operator==(Duration lhs, Duration rhs); -constexpr bool operator!=(Duration lhs, Duration rhs) { return !(lhs == rhs); } - -// Additive Operators -constexpr Duration operator-(Duration d); -inline Duration operator+(Duration lhs, Duration rhs) { return lhs += rhs; } -inline Duration operator-(Duration lhs, Duration rhs) { return lhs -= rhs; } - -// Multiplicative Operators -// Integer operands must be representable as int64_t. -template <typename T> -Duration operator*(Duration lhs, T rhs) { - return lhs *= rhs; -} -template <typename T> -Duration operator*(T lhs, Duration rhs) { - return rhs *= lhs; -} -template <typename T> -Duration operator/(Duration lhs, T rhs) { - return lhs /= rhs; -} -inline int64_t operator/(Duration lhs, Duration rhs) { - return time_internal::IDivDuration(true, lhs, rhs, - &lhs); // trunc towards zero -} -inline Duration operator%(Duration lhs, Duration rhs) { return lhs %= rhs; } - -// IDivDuration() -// -// Divides a numerator `Duration` by a denominator `Duration`, returning the -// quotient and remainder. The remainder always has the same sign as the -// numerator. The returned quotient and remainder respect the identity: -// -// numerator = denominator * quotient + remainder -// -// Returned quotients are capped to the range of `int64_t`, with the difference -// spilling into the remainder to uphold the above identity. This means that the -// remainder returned could differ from the remainder returned by -// `Duration::operator%` for huge quotients. -// -// See also the notes on `InfiniteDuration()` below regarding the behavior of -// division involving zero and infinite durations. -// -// Example: -// -// constexpr absl::Duration a = -// absl::Seconds(std::numeric_limits<int64_t>::max()); // big -// constexpr absl::Duration b = absl::Nanoseconds(1); // small -// -// absl::Duration rem = a % b; -// // rem == absl::ZeroDuration() -// -// // Here, q would overflow int64_t, so rem accounts for the difference. -// int64_t q = absl::IDivDuration(a, b, &rem); -// // q == std::numeric_limits<int64_t>::max(), rem == a - b * q -inline int64_t IDivDuration(Duration num, Duration den, Duration* rem) { - return time_internal::IDivDuration(true, num, den, - rem); // trunc towards zero -} - -// FDivDuration() -// -// Divides a `Duration` numerator into a fractional number of units of a -// `Duration` denominator. -// -// See also the notes on `InfiniteDuration()` below regarding the behavior of -// division involving zero and infinite durations. -// -// Example: -// -// double d = absl::FDivDuration(absl::Milliseconds(1500), absl::Seconds(1)); -// // d == 1.5 -double FDivDuration(Duration num, Duration den); - -// ZeroDuration() -// -// Returns a zero-length duration. This function behaves just like the default -// constructor, but the name helps make the semantics clear at call sites. -constexpr Duration ZeroDuration() { return Duration(); } - -// AbsDuration() -// -// Returns the absolute value of a duration. -inline Duration AbsDuration(Duration d) { - return (d < ZeroDuration()) ? -d : d; -} - -// Trunc() -// -// Truncates a duration (toward zero) to a multiple of a non-zero unit. -// -// Example: -// -// absl::Duration d = absl::Nanoseconds(123456789); -// absl::Duration a = absl::Trunc(d, absl::Microseconds(1)); // 123456us -Duration Trunc(Duration d, Duration unit); - -// Floor() -// -// Floors a duration using the passed duration unit to its largest value not -// greater than the duration. -// -// Example: -// -// absl::Duration d = absl::Nanoseconds(123456789); -// absl::Duration b = absl::Floor(d, absl::Microseconds(1)); // 123456us -Duration Floor(Duration d, Duration unit); - -// Ceil() -// -// Returns the ceiling of a duration using the passed duration unit to its -// smallest value not less than the duration. -// -// Example: -// -// absl::Duration d = absl::Nanoseconds(123456789); -// absl::Duration c = absl::Ceil(d, absl::Microseconds(1)); // 123457us -Duration Ceil(Duration d, Duration unit); - -// InfiniteDuration() -// -// Returns an infinite `Duration`. To get a `Duration` representing negative -// infinity, use `-InfiniteDuration()`. -// -// Duration arithmetic overflows to +/- infinity and saturates. In general, -// arithmetic with `Duration` infinities is similar to IEEE 754 infinities -// except where IEEE 754 NaN would be involved, in which case +/- -// `InfiniteDuration()` is used in place of a "nan" Duration. -// -// Examples: -// -// constexpr absl::Duration inf = absl::InfiniteDuration(); -// const absl::Duration d = ... any finite duration ... -// -// inf == inf + inf -// inf == inf + d -// inf == inf - inf -// -inf == d - inf -// -// inf == d * 1e100 -// inf == inf / 2 -// 0 == d / inf -// INT64_MAX == inf / d -// -// d < inf -// -inf < d -// -// // Division by zero returns infinity, or INT64_MIN/MAX where appropriate. -// inf == d / 0 -// INT64_MAX == d / absl::ZeroDuration() -// -// The examples involving the `/` operator above also apply to `IDivDuration()` -// and `FDivDuration()`. -constexpr Duration InfiniteDuration(); - -// Nanoseconds() -// Microseconds() -// Milliseconds() -// Seconds() -// Minutes() -// Hours() -// -// Factory functions for constructing `Duration` values from an integral number -// of the unit indicated by the factory function's name. The number must be -// representable as int64_t. -// -// NOTE: no "Days()" factory function exists because "a day" is ambiguous. -// Civil days are not always 24 hours long, and a 24-hour duration often does -// not correspond with a civil day. If a 24-hour duration is needed, use -// `absl::Hours(24)`. If you actually want a civil day, use absl::CivilDay -// from civil_time.h. -// -// Example: -// -// absl::Duration a = absl::Seconds(60); -// absl::Duration b = absl::Minutes(1); // b == a -constexpr Duration Nanoseconds(int64_t n); -constexpr Duration Microseconds(int64_t n); -constexpr Duration Milliseconds(int64_t n); -constexpr Duration Seconds(int64_t n); -constexpr Duration Minutes(int64_t n); -constexpr Duration Hours(int64_t n); - -// Factory overloads for constructing `Duration` values from a floating-point -// number of the unit indicated by the factory function's name. These functions -// exist for convenience, but they are not as efficient as the integral -// factories, which should be preferred. -// -// Example: -// -// auto a = absl::Seconds(1.5); // OK -// auto b = absl::Milliseconds(1500); // BETTER -template <typename T, time_internal::EnableIfFloat<T> = 0> -Duration Nanoseconds(T n) { - return n * Nanoseconds(1); -} -template <typename T, time_internal::EnableIfFloat<T> = 0> -Duration Microseconds(T n) { - return n * Microseconds(1); -} -template <typename T, time_internal::EnableIfFloat<T> = 0> -Duration Milliseconds(T n) { - return n * Milliseconds(1); -} -template <typename T, time_internal::EnableIfFloat<T> = 0> -Duration Seconds(T n) { - if (n >= 0) { // Note: `NaN >= 0` is false. - if (n >= static_cast<T>((std::numeric_limits<int64_t>::max)())) { - return InfiniteDuration(); - } - return time_internal::MakePosDoubleDuration(n); - } else { - if (std::isnan(n)) - return std::signbit(n) ? -InfiniteDuration() : InfiniteDuration(); - if (n <= (std::numeric_limits<int64_t>::min)()) return -InfiniteDuration(); - return -time_internal::MakePosDoubleDuration(-n); - } -} -template <typename T, time_internal::EnableIfFloat<T> = 0> -Duration Minutes(T n) { - return n * Minutes(1); -} -template <typename T, time_internal::EnableIfFloat<T> = 0> -Duration Hours(T n) { - return n * Hours(1); -} - -// ToInt64Nanoseconds() -// ToInt64Microseconds() -// ToInt64Milliseconds() -// ToInt64Seconds() -// ToInt64Minutes() -// ToInt64Hours() -// -// Helper functions that convert a Duration to an integral count of the -// indicated unit. These functions are shorthand for the `IDivDuration()` -// function above; see its documentation for details about overflow, etc. -// -// Example: -// -// absl::Duration d = absl::Milliseconds(1500); -// int64_t isec = absl::ToInt64Seconds(d); // isec == 1 -int64_t ToInt64Nanoseconds(Duration d); -int64_t ToInt64Microseconds(Duration d); -int64_t ToInt64Milliseconds(Duration d); -int64_t ToInt64Seconds(Duration d); -int64_t ToInt64Minutes(Duration d); -int64_t ToInt64Hours(Duration d); - -// ToDoubleNanoSeconds() -// ToDoubleMicroseconds() -// ToDoubleMilliseconds() -// ToDoubleSeconds() -// ToDoubleMinutes() -// ToDoubleHours() -// -// Helper functions that convert a Duration to a floating point count of the -// indicated unit. These functions are shorthand for the `FDivDuration()` -// function above; see its documentation for details about overflow, etc. -// -// Example: -// -// absl::Duration d = absl::Milliseconds(1500); -// double dsec = absl::ToDoubleSeconds(d); // dsec == 1.5 -double ToDoubleNanoseconds(Duration d); -double ToDoubleMicroseconds(Duration d); -double ToDoubleMilliseconds(Duration d); -double ToDoubleSeconds(Duration d); -double ToDoubleMinutes(Duration d); -double ToDoubleHours(Duration d); - -// FromChrono() -// -// Converts any of the pre-defined std::chrono durations to an absl::Duration. -// -// Example: -// -// std::chrono::milliseconds ms(123); -// absl::Duration d = absl::FromChrono(ms); -constexpr Duration FromChrono(const std::chrono::nanoseconds& d); -constexpr Duration FromChrono(const std::chrono::microseconds& d); -constexpr Duration FromChrono(const std::chrono::milliseconds& d); -constexpr Duration FromChrono(const std::chrono::seconds& d); -constexpr Duration FromChrono(const std::chrono::minutes& d); -constexpr Duration FromChrono(const std::chrono::hours& d); - -// ToChronoNanoseconds() -// ToChronoMicroseconds() -// ToChronoMilliseconds() -// ToChronoSeconds() -// ToChronoMinutes() -// ToChronoHours() -// -// Converts an absl::Duration to any of the pre-defined std::chrono durations. -// If overflow would occur, the returned value will saturate at the min/max -// chrono duration value instead. -// -// Example: -// -// absl::Duration d = absl::Microseconds(123); -// auto x = absl::ToChronoMicroseconds(d); -// auto y = absl::ToChronoNanoseconds(d); // x == y -// auto z = absl::ToChronoSeconds(absl::InfiniteDuration()); -// // z == std::chrono::seconds::max() -std::chrono::nanoseconds ToChronoNanoseconds(Duration d); -std::chrono::microseconds ToChronoMicroseconds(Duration d); -std::chrono::milliseconds ToChronoMilliseconds(Duration d); -std::chrono::seconds ToChronoSeconds(Duration d); -std::chrono::minutes ToChronoMinutes(Duration d); -std::chrono::hours ToChronoHours(Duration d); - -// FormatDuration() -// -// Returns a string representing the duration in the form "72h3m0.5s". -// Returns "inf" or "-inf" for +/- `InfiniteDuration()`. -std::string FormatDuration(Duration d); - -// Output stream operator. -inline std::ostream& operator<<(std::ostream& os, Duration d) { - return os << FormatDuration(d); -} - -// ParseDuration() -// -// Parses a duration string consisting of a possibly signed sequence of -// decimal numbers, each with an optional fractional part and a unit -// suffix. The valid suffixes are "ns", "us" "ms", "s", "m", and "h". -// Simple examples include "300ms", "-1.5h", and "2h45m". Parses "0" as -// `ZeroDuration()`. Parses "inf" and "-inf" as +/- `InfiniteDuration()`. -bool ParseDuration(absl::string_view dur_string, Duration* d); - -// Support for flag values of type Duration. Duration flags must be specified -// in a format that is valid input for absl::ParseDuration(). -bool AbslParseFlag(absl::string_view text, Duration* dst, std::string* error); -std::string AbslUnparseFlag(Duration d); -ABSL_DEPRECATED("Use AbslParseFlag() instead.") -bool ParseFlag(const std::string& text, Duration* dst, std::string* error); -ABSL_DEPRECATED("Use AbslUnparseFlag() instead.") -std::string UnparseFlag(Duration d); - -// Time -// -// An `absl::Time` represents a specific instant in time. Arithmetic operators -// are provided for naturally expressing time calculations. Instances are -// created using `absl::Now()` and the `absl::From*()` factory functions that -// accept the gamut of other time representations. Formatting and parsing -// functions are provided for conversion to and from strings. `absl::Time` -// should be passed by value rather than const reference. -// -// `absl::Time` assumes there are 60 seconds in a minute, which means the -// underlying time scales must be "smeared" to eliminate leap seconds. -// See https://developers.google.com/time/smear. -// -// Even though `absl::Time` supports a wide range of timestamps, exercise -// caution when using values in the distant past. `absl::Time` uses the -// Proleptic Gregorian calendar, which extends the Gregorian calendar backward -// to dates before its introduction in 1582. -// See https://en.wikipedia.org/wiki/Proleptic_Gregorian_calendar -// for more information. Use the ICU calendar classes to convert a date in -// some other calendar (http://userguide.icu-project.org/datetime/calendar). -// -// Similarly, standardized time zones are a reasonably recent innovation, with -// the Greenwich prime meridian being established in 1884. The TZ database -// itself does not profess accurate offsets for timestamps prior to 1970. The -// breakdown of future timestamps is subject to the whim of regional -// governments. -// -// The `absl::Time` class represents an instant in time as a count of clock -// ticks of some granularity (resolution) from some starting point (epoch). -// -// `absl::Time` uses a resolution that is high enough to avoid loss in -// precision, and a range that is wide enough to avoid overflow, when -// converting between tick counts in most Google time scales (i.e., resolution -// of at least one nanosecond, and range +/-100 billion years). Conversions -// between the time scales are performed by truncating (towards negative -// infinity) to the nearest representable point. -// -// Examples: -// -// absl::Time t1 = ...; -// absl::Time t2 = t1 + absl::Minutes(2); -// absl::Duration d = t2 - t1; // == absl::Minutes(2) -// -class Time { - public: - // Value semantics. - - // Returns the Unix epoch. However, those reading your code may not know - // or expect the Unix epoch as the default value, so make your code more - // readable by explicitly initializing all instances before use. - // - // Example: - // absl::Time t = absl::UnixEpoch(); - // absl::Time t = absl::Now(); - // absl::Time t = absl::TimeFromTimeval(tv); - // absl::Time t = absl::InfinitePast(); - constexpr Time() = default; - - // Copyable. - constexpr Time(const Time& t) = default; - Time& operator=(const Time& t) = default; - - // Assignment operators. - Time& operator+=(Duration d) { - rep_ += d; - return *this; - } - Time& operator-=(Duration d) { - rep_ -= d; - return *this; - } - - // Time::Breakdown - // - // The calendar and wall-clock (aka "civil time") components of an - // `absl::Time` in a certain `absl::TimeZone`. This struct is not - // intended to represent an instant in time. So, rather than passing - // a `Time::Breakdown` to a function, pass an `absl::Time` and an - // `absl::TimeZone`. - // - // Deprecated. Use `absl::TimeZone::CivilInfo`. - struct - Breakdown { - int64_t year; // year (e.g., 2013) - int month; // month of year [1:12] - int day; // day of month [1:31] - int hour; // hour of day [0:23] - int minute; // minute of hour [0:59] - int second; // second of minute [0:59] - Duration subsecond; // [Seconds(0):Seconds(1)) if finite - int weekday; // 1==Mon, ..., 7=Sun - int yearday; // day of year [1:366] - - // Note: The following fields exist for backward compatibility - // with older APIs. Accessing these fields directly is a sign of - // imprudent logic in the calling code. Modern time-related code - // should only access this data indirectly by way of FormatTime(). - // These fields are undefined for InfiniteFuture() and InfinitePast(). - int offset; // seconds east of UTC - bool is_dst; // is offset non-standard? - const char* zone_abbr; // time-zone abbreviation (e.g., "PST") - }; - - // Time::In() - // - // Returns the breakdown of this instant in the given TimeZone. - // - // Deprecated. Use `absl::TimeZone::At(Time)`. - Breakdown In(TimeZone tz) const; - - template <typename H> - friend H AbslHashValue(H h, Time t) { - return H::combine(std::move(h), t.rep_); - } - - private: - friend constexpr Time time_internal::FromUnixDuration(Duration d); - friend constexpr Duration time_internal::ToUnixDuration(Time t); - friend constexpr bool operator<(Time lhs, Time rhs); - friend constexpr bool operator==(Time lhs, Time rhs); - friend Duration operator-(Time lhs, Time rhs); - friend constexpr Time UniversalEpoch(); - friend constexpr Time InfiniteFuture(); - friend constexpr Time InfinitePast(); - constexpr explicit Time(Duration rep) : rep_(rep) {} - Duration rep_; -}; - -// Relational Operators -constexpr bool operator<(Time lhs, Time rhs) { return lhs.rep_ < rhs.rep_; } -constexpr bool operator>(Time lhs, Time rhs) { return rhs < lhs; } -constexpr bool operator>=(Time lhs, Time rhs) { return !(lhs < rhs); } -constexpr bool operator<=(Time lhs, Time rhs) { return !(rhs < lhs); } -constexpr bool operator==(Time lhs, Time rhs) { return lhs.rep_ == rhs.rep_; } -constexpr bool operator!=(Time lhs, Time rhs) { return !(lhs == rhs); } - -// Additive Operators -inline Time operator+(Time lhs, Duration rhs) { return lhs += rhs; } -inline Time operator+(Duration lhs, Time rhs) { return rhs += lhs; } -inline Time operator-(Time lhs, Duration rhs) { return lhs -= rhs; } -inline Duration operator-(Time lhs, Time rhs) { return lhs.rep_ - rhs.rep_; } - -// UnixEpoch() -// -// Returns the `absl::Time` representing "1970-01-01 00:00:00.0 +0000". -constexpr Time UnixEpoch() { return Time(); } - -// UniversalEpoch() -// -// Returns the `absl::Time` representing "0001-01-01 00:00:00.0 +0000", the -// epoch of the ICU Universal Time Scale. -constexpr Time UniversalEpoch() { - // 719162 is the number of days from 0001-01-01 to 1970-01-01, - // assuming the Gregorian calendar. - return Time(time_internal::MakeDuration(-24 * 719162 * int64_t{3600}, 0U)); -} - -// InfiniteFuture() -// -// Returns an `absl::Time` that is infinitely far in the future. -constexpr Time InfiniteFuture() { - return Time( - time_internal::MakeDuration((std::numeric_limits<int64_t>::max)(), ~0U)); -} - -// InfinitePast() -// -// Returns an `absl::Time` that is infinitely far in the past. -constexpr Time InfinitePast() { - return Time( - time_internal::MakeDuration((std::numeric_limits<int64_t>::min)(), ~0U)); -} - -// FromUnixNanos() -// FromUnixMicros() -// FromUnixMillis() -// FromUnixSeconds() -// FromTimeT() -// FromUDate() -// FromUniversal() -// -// Creates an `absl::Time` from a variety of other representations. -constexpr Time FromUnixNanos(int64_t ns); -constexpr Time FromUnixMicros(int64_t us); -constexpr Time FromUnixMillis(int64_t ms); -constexpr Time FromUnixSeconds(int64_t s); -constexpr Time FromTimeT(time_t t); -Time FromUDate(double udate); -Time FromUniversal(int64_t universal); - -// ToUnixNanos() -// ToUnixMicros() -// ToUnixMillis() -// ToUnixSeconds() -// ToTimeT() -// ToUDate() -// ToUniversal() -// -// Converts an `absl::Time` to a variety of other representations. Note that -// these operations round down toward negative infinity where necessary to -// adjust to the resolution of the result type. Beware of possible time_t -// over/underflow in ToTime{T,val,spec}() on 32-bit platforms. -int64_t ToUnixNanos(Time t); -int64_t ToUnixMicros(Time t); -int64_t ToUnixMillis(Time t); -int64_t ToUnixSeconds(Time t); -time_t ToTimeT(Time t); -double ToUDate(Time t); -int64_t ToUniversal(Time t); - -// DurationFromTimespec() -// DurationFromTimeval() -// ToTimespec() -// ToTimeval() -// TimeFromTimespec() -// TimeFromTimeval() -// ToTimespec() -// ToTimeval() -// -// Some APIs use a timespec or a timeval as a Duration (e.g., nanosleep(2) -// and select(2)), while others use them as a Time (e.g. clock_gettime(2) -// and gettimeofday(2)), so conversion functions are provided for both cases. -// The "to timespec/val" direction is easily handled via overloading, but -// for "from timespec/val" the desired type is part of the function name. -Duration DurationFromTimespec(timespec ts); -Duration DurationFromTimeval(timeval tv); -timespec ToTimespec(Duration d); -timeval ToTimeval(Duration d); -Time TimeFromTimespec(timespec ts); -Time TimeFromTimeval(timeval tv); -timespec ToTimespec(Time t); -timeval ToTimeval(Time t); - -// FromChrono() -// -// Converts a std::chrono::system_clock::time_point to an absl::Time. -// -// Example: -// -// auto tp = std::chrono::system_clock::from_time_t(123); -// absl::Time t = absl::FromChrono(tp); -// // t == absl::FromTimeT(123) -Time FromChrono(const std::chrono::system_clock::time_point& tp); - -// ToChronoTime() -// -// Converts an absl::Time to a std::chrono::system_clock::time_point. If -// overflow would occur, the returned value will saturate at the min/max time -// point value instead. -// -// Example: -// -// absl::Time t = absl::FromTimeT(123); -// auto tp = absl::ToChronoTime(t); -// // tp == std::chrono::system_clock::from_time_t(123); -std::chrono::system_clock::time_point ToChronoTime(Time); - -// Support for flag values of type Time. Time flags must be specified in a -// format that matches absl::RFC3339_full. For example: -// -// --start_time=2016-01-02T03:04:05.678+08:00 -// -// Note: A UTC offset (or 'Z' indicating a zero-offset from UTC) is required. -// -// Additionally, if you'd like to specify a time as a count of -// seconds/milliseconds/etc from the Unix epoch, use an absl::Duration flag -// and add that duration to absl::UnixEpoch() to get an absl::Time. -bool AbslParseFlag(absl::string_view text, Time* t, std::string* error); -std::string AbslUnparseFlag(Time t); -ABSL_DEPRECATED("Use AbslParseFlag() instead.") -bool ParseFlag(const std::string& text, Time* t, std::string* error); -ABSL_DEPRECATED("Use AbslUnparseFlag() instead.") -std::string UnparseFlag(Time t); - -// TimeZone -// -// The `absl::TimeZone` is an opaque, small, value-type class representing a -// geo-political region within which particular rules are used for converting -// between absolute and civil times (see https://git.io/v59Ly). `absl::TimeZone` -// values are named using the TZ identifiers from the IANA Time Zone Database, -// such as "America/Los_Angeles" or "Australia/Sydney". `absl::TimeZone` values -// are created from factory functions such as `absl::LoadTimeZone()`. Note: -// strings like "PST" and "EDT" are not valid TZ identifiers. Prefer to pass by -// value rather than const reference. -// -// For more on the fundamental concepts of time zones, absolute times, and civil -// times, see https://github.com/google/cctz#fundamental-concepts -// -// Examples: -// -// absl::TimeZone utc = absl::UTCTimeZone(); -// absl::TimeZone pst = absl::FixedTimeZone(-8 * 60 * 60); -// absl::TimeZone loc = absl::LocalTimeZone(); -// absl::TimeZone lax; -// if (!absl::LoadTimeZone("America/Los_Angeles", &lax)) { -// // handle error case -// } -// -// See also: -// - https://github.com/google/cctz -// - https://www.iana.org/time-zones -// - https://en.wikipedia.org/wiki/Zoneinfo -class TimeZone { - public: - explicit TimeZone(time_internal::cctz::time_zone tz) : cz_(tz) {} - TimeZone() = default; // UTC, but prefer UTCTimeZone() to be explicit. - - // Copyable. - TimeZone(const TimeZone&) = default; - TimeZone& operator=(const TimeZone&) = default; - - explicit operator time_internal::cctz::time_zone() const { return cz_; } - - std::string name() const { return cz_.name(); } - - // TimeZone::CivilInfo - // - // Information about the civil time corresponding to an absolute time. - // This struct is not intended to represent an instant in time. So, rather - // than passing a `TimeZone::CivilInfo` to a function, pass an `absl::Time` - // and an `absl::TimeZone`. - struct CivilInfo { - CivilSecond cs; - Duration subsecond; - - // Note: The following fields exist for backward compatibility - // with older APIs. Accessing these fields directly is a sign of - // imprudent logic in the calling code. Modern time-related code - // should only access this data indirectly by way of FormatTime(). - // These fields are undefined for InfiniteFuture() and InfinitePast(). - int offset; // seconds east of UTC - bool is_dst; // is offset non-standard? - const char* zone_abbr; // time-zone abbreviation (e.g., "PST") - }; - - // TimeZone::At(Time) - // - // Returns the civil time for this TimeZone at a certain `absl::Time`. - // If the input time is infinite, the output civil second will be set to - // CivilSecond::max() or min(), and the subsecond will be infinite. - // - // Example: - // - // const auto epoch = lax.At(absl::UnixEpoch()); - // // epoch.cs == 1969-12-31 16:00:00 - // // epoch.subsecond == absl::ZeroDuration() - // // epoch.offset == -28800 - // // epoch.is_dst == false - // // epoch.abbr == "PST" - CivilInfo At(Time t) const; - - // TimeZone::TimeInfo - // - // Information about the absolute times corresponding to a civil time. - // (Subseconds must be handled separately.) - // - // It is possible for a caller to pass a civil-time value that does - // not represent an actual or unique instant in time (due to a shift - // in UTC offset in the TimeZone, which results in a discontinuity in - // the civil-time components). For example, a daylight-saving-time - // transition skips or repeats civil times---in the United States, - // March 13, 2011 02:15 never occurred, while November 6, 2011 01:15 - // occurred twice---so requests for such times are not well-defined. - // To account for these possibilities, `absl::TimeZone::TimeInfo` is - // richer than just a single `absl::Time`. - struct TimeInfo { - enum CivilKind { - UNIQUE, // the civil time was singular (pre == trans == post) - SKIPPED, // the civil time did not exist (pre >= trans > post) - REPEATED, // the civil time was ambiguous (pre < trans <= post) - } kind; - Time pre; // time calculated using the pre-transition offset - Time trans; // when the civil-time discontinuity occurred - Time post; // time calculated using the post-transition offset - }; - - // TimeZone::At(CivilSecond) - // - // Returns an `absl::TimeInfo` containing the absolute time(s) for this - // TimeZone at an `absl::CivilSecond`. When the civil time is skipped or - // repeated, returns times calculated using the pre-transition and post- - // transition UTC offsets, plus the transition time itself. - // - // Examples: - // - // // A unique civil time - // const auto jan01 = lax.At(absl::CivilSecond(2011, 1, 1, 0, 0, 0)); - // // jan01.kind == TimeZone::TimeInfo::UNIQUE - // // jan01.pre is 2011-01-01 00:00:00 -0800 - // // jan01.trans is 2011-01-01 00:00:00 -0800 - // // jan01.post is 2011-01-01 00:00:00 -0800 - // - // // A Spring DST transition, when there is a gap in civil time - // const auto mar13 = lax.At(absl::CivilSecond(2011, 3, 13, 2, 15, 0)); - // // mar13.kind == TimeZone::TimeInfo::SKIPPED - // // mar13.pre is 2011-03-13 03:15:00 -0700 - // // mar13.trans is 2011-03-13 03:00:00 -0700 - // // mar13.post is 2011-03-13 01:15:00 -0800 - // - // // A Fall DST transition, when civil times are repeated - // const auto nov06 = lax.At(absl::CivilSecond(2011, 11, 6, 1, 15, 0)); - // // nov06.kind == TimeZone::TimeInfo::REPEATED - // // nov06.pre is 2011-11-06 01:15:00 -0700 - // // nov06.trans is 2011-11-06 01:00:00 -0800 - // // nov06.post is 2011-11-06 01:15:00 -0800 - TimeInfo At(CivilSecond ct) const; - - // TimeZone::NextTransition() - // TimeZone::PrevTransition() - // - // Finds the time of the next/previous offset change in this time zone. - // - // By definition, `NextTransition(t, &trans)` returns false when `t` is - // `InfiniteFuture()`, and `PrevTransition(t, &trans)` returns false - // when `t` is `InfinitePast()`. If the zone has no transitions, the - // result will also be false no matter what the argument. - // - // Otherwise, when `t` is `InfinitePast()`, `NextTransition(t, &trans)` - // returns true and sets `trans` to the first recorded transition. Chains - // of calls to `NextTransition()/PrevTransition()` will eventually return - // false, but it is unspecified exactly when `NextTransition(t, &trans)` - // jumps to false, or what time is set by `PrevTransition(t, &trans)` for - // a very distant `t`. - // - // Note: Enumeration of time-zone transitions is for informational purposes - // only. Modern time-related code should not care about when offset changes - // occur. - // - // Example: - // absl::TimeZone nyc; - // if (!absl::LoadTimeZone("America/New_York", &nyc)) { ... } - // const auto now = absl::Now(); - // auto t = absl::InfinitePast(); - // absl::TimeZone::CivilTransition trans; - // while (t <= now && nyc.NextTransition(t, &trans)) { - // // transition: trans.from -> trans.to - // t = nyc.At(trans.to).trans; - // } - struct CivilTransition { - CivilSecond from; // the civil time we jump from - CivilSecond to; // the civil time we jump to - }; - bool NextTransition(Time t, CivilTransition* trans) const; - bool PrevTransition(Time t, CivilTransition* trans) const; - - template <typename H> - friend H AbslHashValue(H h, TimeZone tz) { - return H::combine(std::move(h), tz.cz_); - } - - private: - friend bool operator==(TimeZone a, TimeZone b) { return a.cz_ == b.cz_; } - friend bool operator!=(TimeZone a, TimeZone b) { return a.cz_ != b.cz_; } - friend std::ostream& operator<<(std::ostream& os, TimeZone tz) { - return os << tz.name(); - } - - time_internal::cctz::time_zone cz_; -}; - -// LoadTimeZone() -// -// Loads the named zone. May perform I/O on the initial load of the named -// zone. If the name is invalid, or some other kind of error occurs, returns -// `false` and `*tz` is set to the UTC time zone. -inline bool LoadTimeZone(absl::string_view name, TimeZone* tz) { - if (name == "localtime") { - *tz = TimeZone(time_internal::cctz::local_time_zone()); - return true; - } - time_internal::cctz::time_zone cz; - const bool b = time_internal::cctz::load_time_zone(std::string(name), &cz); - *tz = TimeZone(cz); - return b; -} - -// FixedTimeZone() -// -// Returns a TimeZone that is a fixed offset (seconds east) from UTC. -// Note: If the absolute value of the offset is greater than 24 hours -// you'll get UTC (i.e., no offset) instead. -inline TimeZone FixedTimeZone(int seconds) { - return TimeZone( - time_internal::cctz::fixed_time_zone(std::chrono::seconds(seconds))); -} - -// UTCTimeZone() -// -// Convenience method returning the UTC time zone. -inline TimeZone UTCTimeZone() { - return TimeZone(time_internal::cctz::utc_time_zone()); -} - -// LocalTimeZone() -// -// Convenience method returning the local time zone, or UTC if there is -// no configured local zone. Warning: Be wary of using LocalTimeZone(), -// and particularly so in a server process, as the zone configured for the -// local machine should be irrelevant. Prefer an explicit zone name. -inline TimeZone LocalTimeZone() { - return TimeZone(time_internal::cctz::local_time_zone()); -} - -// ToCivilSecond() -// ToCivilMinute() -// ToCivilHour() -// ToCivilDay() -// ToCivilMonth() -// ToCivilYear() -// -// Helpers for TimeZone::At(Time) to return particularly aligned civil times. -// -// Example: -// -// absl::Time t = ...; -// absl::TimeZone tz = ...; -// const auto cd = absl::ToCivilDay(t, tz); -inline CivilSecond ToCivilSecond(Time t, TimeZone tz) { - return tz.At(t).cs; // already a CivilSecond -} -inline CivilMinute ToCivilMinute(Time t, TimeZone tz) { - return CivilMinute(tz.At(t).cs); -} -inline CivilHour ToCivilHour(Time t, TimeZone tz) { - return CivilHour(tz.At(t).cs); -} -inline CivilDay ToCivilDay(Time t, TimeZone tz) { - return CivilDay(tz.At(t).cs); -} -inline CivilMonth ToCivilMonth(Time t, TimeZone tz) { - return CivilMonth(tz.At(t).cs); -} -inline CivilYear ToCivilYear(Time t, TimeZone tz) { - return CivilYear(tz.At(t).cs); -} - -// FromCivil() -// -// Helper for TimeZone::At(CivilSecond) that provides "order-preserving -// semantics." If the civil time maps to a unique time, that time is -// returned. If the civil time is repeated in the given time zone, the -// time using the pre-transition offset is returned. Otherwise, the -// civil time is skipped in the given time zone, and the transition time -// is returned. This means that for any two civil times, ct1 and ct2, -// (ct1 < ct2) => (FromCivil(ct1) <= FromCivil(ct2)), the equal case -// being when two non-existent civil times map to the same transition time. -// -// Note: Accepts civil times of any alignment. -inline Time FromCivil(CivilSecond ct, TimeZone tz) { - const auto ti = tz.At(ct); - if (ti.kind == TimeZone::TimeInfo::SKIPPED) return ti.trans; - return ti.pre; -} - -// TimeConversion -// -// An `absl::TimeConversion` represents the conversion of year, month, day, -// hour, minute, and second values (i.e., a civil time), in a particular -// `absl::TimeZone`, to a time instant (an absolute time), as returned by -// `absl::ConvertDateTime()`. Legacy version of `absl::TimeZone::TimeInfo`. -// -// Deprecated. Use `absl::TimeZone::TimeInfo`. -struct - TimeConversion { - Time pre; // time calculated using the pre-transition offset - Time trans; // when the civil-time discontinuity occurred - Time post; // time calculated using the post-transition offset - - enum Kind { - UNIQUE, // the civil time was singular (pre == trans == post) - SKIPPED, // the civil time did not exist - REPEATED, // the civil time was ambiguous - }; - Kind kind; - - bool normalized; // input values were outside their valid ranges -}; - -// ConvertDateTime() -// -// Legacy version of `absl::TimeZone::At(absl::CivilSecond)` that takes -// the civil time as six, separate values (YMDHMS). -// -// The input month, day, hour, minute, and second values can be outside -// of their valid ranges, in which case they will be "normalized" during -// the conversion. -// -// Example: -// -// // "October 32" normalizes to "November 1". -// absl::TimeConversion tc = -// absl::ConvertDateTime(2013, 10, 32, 8, 30, 0, lax); -// // tc.kind == TimeConversion::UNIQUE && tc.normalized == true -// // absl::ToCivilDay(tc.pre, tz).month() == 11 -// // absl::ToCivilDay(tc.pre, tz).day() == 1 -// -// Deprecated. Use `absl::TimeZone::At(CivilSecond)`. -TimeConversion ConvertDateTime(int64_t year, int mon, int day, int hour, - int min, int sec, TimeZone tz); - -// FromDateTime() -// -// A convenience wrapper for `absl::ConvertDateTime()` that simply returns -// the "pre" `absl::Time`. That is, the unique result, or the instant that -// is correct using the pre-transition offset (as if the transition never -// happened). -// -// Example: -// -// absl::Time t = absl::FromDateTime(2017, 9, 26, 9, 30, 0, lax); -// // t = 2017-09-26 09:30:00 -0700 -// -// Deprecated. Use `absl::FromCivil(CivilSecond, TimeZone)`. Note that the -// behavior of `FromCivil()` differs from `FromDateTime()` for skipped civil -// times. If you care about that see `absl::TimeZone::At(absl::CivilSecond)`. -inline Time FromDateTime(int64_t year, int mon, int day, int hour, - int min, int sec, TimeZone tz) { - return ConvertDateTime(year, mon, day, hour, min, sec, tz).pre; -} - -// FromTM() -// -// Converts the `tm_year`, `tm_mon`, `tm_mday`, `tm_hour`, `tm_min`, and -// `tm_sec` fields to an `absl::Time` using the given time zone. See ctime(3) -// for a description of the expected values of the tm fields. If the indicated -// time instant is not unique (see `absl::TimeZone::At(absl::CivilSecond)` -// above), the `tm_isdst` field is consulted to select the desired instant -// (`tm_isdst` > 0 means DST, `tm_isdst` == 0 means no DST, `tm_isdst` < 0 -// means use the post-transition offset). -Time FromTM(const struct tm& tm, TimeZone tz); - -// ToTM() -// -// Converts the given `absl::Time` to a struct tm using the given time zone. -// See ctime(3) for a description of the values of the tm fields. -struct tm ToTM(Time t, TimeZone tz); - -// RFC3339_full -// RFC3339_sec -// -// FormatTime()/ParseTime() format specifiers for RFC3339 date/time strings, -// with trailing zeros trimmed or with fractional seconds omitted altogether. -// -// Note that RFC3339_sec[] matches an ISO 8601 extended format for date and -// time with UTC offset. Also note the use of "%Y": RFC3339 mandates that -// years have exactly four digits, but we allow them to take their natural -// width. -ABSL_DLL extern const char RFC3339_full[]; // %Y-%m-%d%ET%H:%M:%E*S%Ez -ABSL_DLL extern const char RFC3339_sec[]; // %Y-%m-%d%ET%H:%M:%S%Ez - -// RFC1123_full -// RFC1123_no_wday -// -// FormatTime()/ParseTime() format specifiers for RFC1123 date/time strings. -ABSL_DLL extern const char RFC1123_full[]; // %a, %d %b %E4Y %H:%M:%S %z -ABSL_DLL extern const char RFC1123_no_wday[]; // %d %b %E4Y %H:%M:%S %z - -// FormatTime() -// -// Formats the given `absl::Time` in the `absl::TimeZone` according to the -// provided format string. Uses strftime()-like formatting options, with -// the following extensions: -// -// - %Ez - RFC3339-compatible numeric UTC offset (+hh:mm or -hh:mm) -// - %E*z - Full-resolution numeric UTC offset (+hh:mm:ss or -hh:mm:ss) -// - %E#S - Seconds with # digits of fractional precision -// - %E*S - Seconds with full fractional precision (a literal '*') -// - %E#f - Fractional seconds with # digits of precision -// - %E*f - Fractional seconds with full precision (a literal '*') -// - %E4Y - Four-character years (-999 ... -001, 0000, 0001 ... 9999) -// - %ET - The RFC3339 "date-time" separator "T" -// -// Note that %E0S behaves like %S, and %E0f produces no characters. In -// contrast %E*f always produces at least one digit, which may be '0'. -// -// Note that %Y produces as many characters as it takes to fully render the -// year. A year outside of [-999:9999] when formatted with %E4Y will produce -// more than four characters, just like %Y. -// -// We recommend that format strings include the UTC offset (%z, %Ez, or %E*z) -// so that the result uniquely identifies a time instant. -// -// Example: -// -// absl::CivilSecond cs(2013, 1, 2, 3, 4, 5); -// absl::Time t = absl::FromCivil(cs, lax); -// std::string f = absl::FormatTime("%H:%M:%S", t, lax); // "03:04:05" -// f = absl::FormatTime("%H:%M:%E3S", t, lax); // "03:04:05.000" -// -// Note: If the given `absl::Time` is `absl::InfiniteFuture()`, the returned -// string will be exactly "infinite-future". If the given `absl::Time` is -// `absl::InfinitePast()`, the returned string will be exactly "infinite-past". -// In both cases the given format string and `absl::TimeZone` are ignored. -// -std::string FormatTime(absl::string_view format, Time t, TimeZone tz); - -// Convenience functions that format the given time using the RFC3339_full -// format. The first overload uses the provided TimeZone, while the second -// uses LocalTimeZone(). -std::string FormatTime(Time t, TimeZone tz); -std::string FormatTime(Time t); - -// Output stream operator. -inline std::ostream& operator<<(std::ostream& os, Time t) { - return os << FormatTime(t); -} - -// ParseTime() -// -// Parses an input string according to the provided format string and -// returns the corresponding `absl::Time`. Uses strftime()-like formatting -// options, with the same extensions as FormatTime(), but with the -// exceptions that %E#S is interpreted as %E*S, and %E#f as %E*f. %Ez -// and %E*z also accept the same inputs, which (along with %z) includes -// 'z' and 'Z' as synonyms for +00:00. %ET accepts either 'T' or 't'. -// -// %Y consumes as many numeric characters as it can, so the matching data -// should always be terminated with a non-numeric. %E4Y always consumes -// exactly four characters, including any sign. -// -// Unspecified fields are taken from the default date and time of ... -// -// "1970-01-01 00:00:00.0 +0000" -// -// For example, parsing a string of "15:45" (%H:%M) will return an absl::Time -// that represents "1970-01-01 15:45:00.0 +0000". -// -// Note that since ParseTime() returns time instants, it makes the most sense -// to parse fully-specified date/time strings that include a UTC offset (%z, -// %Ez, or %E*z). -// -// Note also that `absl::ParseTime()` only heeds the fields year, month, day, -// hour, minute, (fractional) second, and UTC offset. Other fields, like -// weekday (%a or %A), while parsed for syntactic validity, are ignored -// in the conversion. -// -// Date and time fields that are out-of-range will be treated as errors -// rather than normalizing them like `absl::CivilSecond` does. For example, -// it is an error to parse the date "Oct 32, 2013" because 32 is out of range. -// -// A leap second of ":60" is normalized to ":00" of the following minute -// with fractional seconds discarded. The following table shows how the -// given seconds and subseconds will be parsed: -// -// "59.x" -> 59.x // exact -// "60.x" -> 00.0 // normalized -// "00.x" -> 00.x // exact -// -// Errors are indicated by returning false and assigning an error message -// to the "err" out param if it is non-null. -// -// Note: If the input string is exactly "infinite-future", the returned -// `absl::Time` will be `absl::InfiniteFuture()` and `true` will be returned. -// If the input string is "infinite-past", the returned `absl::Time` will be -// `absl::InfinitePast()` and `true` will be returned. -// -bool ParseTime(absl::string_view format, absl::string_view input, Time* time, - std::string* err); - -// Like ParseTime() above, but if the format string does not contain a UTC -// offset specification (%z/%Ez/%E*z) then the input is interpreted in the -// given TimeZone. This means that the input, by itself, does not identify a -// unique instant. Being time-zone dependent, it also admits the possibility -// of ambiguity or non-existence, in which case the "pre" time (as defined -// by TimeZone::TimeInfo) is returned. For these reasons we recommend that -// all date/time strings include a UTC offset so they're context independent. -bool ParseTime(absl::string_view format, absl::string_view input, TimeZone tz, - Time* time, std::string* err); - -// ============================================================================ -// Implementation Details Follow -// ============================================================================ - -namespace time_internal { - -// Creates a Duration with a given representation. -// REQUIRES: hi,lo is a valid representation of a Duration as specified -// in time/duration.cc. -constexpr Duration MakeDuration(int64_t hi, uint32_t lo = 0) { - return Duration(hi, lo); -} - -constexpr Duration MakeDuration(int64_t hi, int64_t lo) { - return MakeDuration(hi, static_cast<uint32_t>(lo)); -} - -// Make a Duration value from a floating-point number, as long as that number -// is in the range [ 0 .. numeric_limits<int64_t>::max ), that is, as long as -// it's positive and can be converted to int64_t without risk of UB. -inline Duration MakePosDoubleDuration(double n) { - const int64_t int_secs = static_cast<int64_t>(n); - const uint32_t ticks = static_cast<uint32_t>( - (n - static_cast<double>(int_secs)) * kTicksPerSecond + 0.5); - return ticks < kTicksPerSecond - ? MakeDuration(int_secs, ticks) - : MakeDuration(int_secs + 1, ticks - kTicksPerSecond); -} - -// Creates a normalized Duration from an almost-normalized (sec,ticks) -// pair. sec may be positive or negative. ticks must be in the range -// -kTicksPerSecond < *ticks < kTicksPerSecond. If ticks is negative it -// will be normalized to a positive value in the resulting Duration. -constexpr Duration MakeNormalizedDuration(int64_t sec, int64_t ticks) { - return (ticks < 0) ? MakeDuration(sec - 1, ticks + kTicksPerSecond) - : MakeDuration(sec, ticks); -} - -// Provide access to the Duration representation. -constexpr int64_t GetRepHi(Duration d) { return d.rep_hi_; } -constexpr uint32_t GetRepLo(Duration d) { return d.rep_lo_; } - -// Returns true iff d is positive or negative infinity. -constexpr bool IsInfiniteDuration(Duration d) { return GetRepLo(d) == ~0U; } - -// Returns an infinite Duration with the opposite sign. -// REQUIRES: IsInfiniteDuration(d) -constexpr Duration OppositeInfinity(Duration d) { - return GetRepHi(d) < 0 - ? MakeDuration((std::numeric_limits<int64_t>::max)(), ~0U) - : MakeDuration((std::numeric_limits<int64_t>::min)(), ~0U); -} - -// Returns (-n)-1 (equivalently -(n+1)) without avoidable overflow. -constexpr int64_t NegateAndSubtractOne(int64_t n) { - // Note: Good compilers will optimize this expression to ~n when using - // a two's-complement representation (which is required for int64_t). - return (n < 0) ? -(n + 1) : (-n) - 1; -} - -// Map between a Time and a Duration since the Unix epoch. Note that these -// functions depend on the above mentioned choice of the Unix epoch for the -// Time representation (and both need to be Time friends). Without this -// knowledge, we would need to add-in/subtract-out UnixEpoch() respectively. -constexpr Time FromUnixDuration(Duration d) { return Time(d); } -constexpr Duration ToUnixDuration(Time t) { return t.rep_; } - -template <std::intmax_t N> -constexpr Duration FromInt64(int64_t v, std::ratio<1, N>) { - static_assert(0 < N && N <= 1000 * 1000 * 1000, "Unsupported ratio"); - // Subsecond ratios cannot overflow. - return MakeNormalizedDuration( - v / N, v % N * kTicksPerNanosecond * 1000 * 1000 * 1000 / N); -} -constexpr Duration FromInt64(int64_t v, std::ratio<60>) { - return (v <= (std::numeric_limits<int64_t>::max)() / 60 && - v >= (std::numeric_limits<int64_t>::min)() / 60) - ? MakeDuration(v * 60) - : v > 0 ? InfiniteDuration() : -InfiniteDuration(); -} -constexpr Duration FromInt64(int64_t v, std::ratio<3600>) { - return (v <= (std::numeric_limits<int64_t>::max)() / 3600 && - v >= (std::numeric_limits<int64_t>::min)() / 3600) - ? MakeDuration(v * 3600) - : v > 0 ? InfiniteDuration() : -InfiniteDuration(); -} - -// IsValidRep64<T>(0) is true if the expression `int64_t{std::declval<T>()}` is -// valid. That is, if a T can be assigned to an int64_t without narrowing. -template <typename T> -constexpr auto IsValidRep64(int) -> decltype(int64_t{std::declval<T>()} == 0) { - return true; -} -template <typename T> -constexpr auto IsValidRep64(char) -> bool { - return false; -} - -// Converts a std::chrono::duration to an absl::Duration. -template <typename Rep, typename Period> -constexpr Duration FromChrono(const std::chrono::duration<Rep, Period>& d) { - static_assert(IsValidRep64<Rep>(0), "duration::rep is invalid"); - return FromInt64(int64_t{d.count()}, Period{}); -} - -template <typename Ratio> -int64_t ToInt64(Duration d, Ratio) { - // Note: This may be used on MSVC, which may have a system_clock period of - // std::ratio<1, 10 * 1000 * 1000> - return ToInt64Seconds(d * Ratio::den / Ratio::num); -} -// Fastpath implementations for the 6 common duration units. -inline int64_t ToInt64(Duration d, std::nano) { - return ToInt64Nanoseconds(d); -} -inline int64_t ToInt64(Duration d, std::micro) { - return ToInt64Microseconds(d); -} -inline int64_t ToInt64(Duration d, std::milli) { - return ToInt64Milliseconds(d); -} -inline int64_t ToInt64(Duration d, std::ratio<1>) { - return ToInt64Seconds(d); -} -inline int64_t ToInt64(Duration d, std::ratio<60>) { - return ToInt64Minutes(d); -} -inline int64_t ToInt64(Duration d, std::ratio<3600>) { - return ToInt64Hours(d); -} - -// Converts an absl::Duration to a chrono duration of type T. -template <typename T> -T ToChronoDuration(Duration d) { - using Rep = typename T::rep; - using Period = typename T::period; - static_assert(IsValidRep64<Rep>(0), "duration::rep is invalid"); - if (time_internal::IsInfiniteDuration(d)) - return d < ZeroDuration() ? (T::min)() : (T::max)(); - const auto v = ToInt64(d, Period{}); - if (v > (std::numeric_limits<Rep>::max)()) return (T::max)(); - if (v < (std::numeric_limits<Rep>::min)()) return (T::min)(); - return T{v}; -} - -} // namespace time_internal - -constexpr Duration Nanoseconds(int64_t n) { - return time_internal::FromInt64(n, std::nano{}); -} -constexpr Duration Microseconds(int64_t n) { - return time_internal::FromInt64(n, std::micro{}); -} -constexpr Duration Milliseconds(int64_t n) { - return time_internal::FromInt64(n, std::milli{}); -} -constexpr Duration Seconds(int64_t n) { - return time_internal::FromInt64(n, std::ratio<1>{}); -} -constexpr Duration Minutes(int64_t n) { - return time_internal::FromInt64(n, std::ratio<60>{}); -} -constexpr Duration Hours(int64_t n) { - return time_internal::FromInt64(n, std::ratio<3600>{}); -} - -constexpr bool operator<(Duration lhs, Duration rhs) { - return time_internal::GetRepHi(lhs) != time_internal::GetRepHi(rhs) - ? time_internal::GetRepHi(lhs) < time_internal::GetRepHi(rhs) - : time_internal::GetRepHi(lhs) == - (std::numeric_limits<int64_t>::min)() - ? time_internal::GetRepLo(lhs) + 1 < - time_internal::GetRepLo(rhs) + 1 - : time_internal::GetRepLo(lhs) < - time_internal::GetRepLo(rhs); -} - -constexpr bool operator==(Duration lhs, Duration rhs) { - return time_internal::GetRepHi(lhs) == time_internal::GetRepHi(rhs) && - time_internal::GetRepLo(lhs) == time_internal::GetRepLo(rhs); -} - -constexpr Duration operator-(Duration d) { - // This is a little interesting because of the special cases. - // - // If rep_lo_ is zero, we have it easy; it's safe to negate rep_hi_, we're - // dealing with an integral number of seconds, and the only special case is - // the maximum negative finite duration, which can't be negated. - // - // Infinities stay infinite, and just change direction. - // - // Finally we're in the case where rep_lo_ is non-zero, and we can borrow - // a second's worth of ticks and avoid overflow (as negating int64_t-min + 1 - // is safe). - return time_internal::GetRepLo(d) == 0 - ? time_internal::GetRepHi(d) == - (std::numeric_limits<int64_t>::min)() - ? InfiniteDuration() - : time_internal::MakeDuration(-time_internal::GetRepHi(d)) - : time_internal::IsInfiniteDuration(d) - ? time_internal::OppositeInfinity(d) - : time_internal::MakeDuration( - time_internal::NegateAndSubtractOne( - time_internal::GetRepHi(d)), - time_internal::kTicksPerSecond - - time_internal::GetRepLo(d)); -} - -constexpr Duration InfiniteDuration() { - return time_internal::MakeDuration((std::numeric_limits<int64_t>::max)(), - ~0U); -} - -constexpr Duration FromChrono(const std::chrono::nanoseconds& d) { - return time_internal::FromChrono(d); -} -constexpr Duration FromChrono(const std::chrono::microseconds& d) { - return time_internal::FromChrono(d); -} -constexpr Duration FromChrono(const std::chrono::milliseconds& d) { - return time_internal::FromChrono(d); -} -constexpr Duration FromChrono(const std::chrono::seconds& d) { - return time_internal::FromChrono(d); -} -constexpr Duration FromChrono(const std::chrono::minutes& d) { - return time_internal::FromChrono(d); -} -constexpr Duration FromChrono(const std::chrono::hours& d) { - return time_internal::FromChrono(d); -} - -constexpr Time FromUnixNanos(int64_t ns) { - return time_internal::FromUnixDuration(Nanoseconds(ns)); -} - -constexpr Time FromUnixMicros(int64_t us) { - return time_internal::FromUnixDuration(Microseconds(us)); -} - -constexpr Time FromUnixMillis(int64_t ms) { - return time_internal::FromUnixDuration(Milliseconds(ms)); -} - -constexpr Time FromUnixSeconds(int64_t s) { - return time_internal::FromUnixDuration(Seconds(s)); -} - -constexpr Time FromTimeT(time_t t) { - return time_internal::FromUnixDuration(Seconds(t)); -} - -ABSL_NAMESPACE_END -} // namespace absl - -#endif // ABSL_TIME_TIME_H_ diff --git a/third_party/abseil_cpp/absl/time/time_benchmark.cc b/third_party/abseil_cpp/absl/time/time_benchmark.cc deleted file mode 100644 index 99e6279984..0000000000 --- a/third_party/abseil_cpp/absl/time/time_benchmark.cc +++ /dev/null @@ -1,316 +0,0 @@ -// Copyright 2018 The Abseil Authors. -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/time.h" - -#if !defined(_WIN32) -#include <sys/time.h> -#endif // _WIN32 -#include <algorithm> -#include <cmath> -#include <cstddef> -#include <cstring> -#include <ctime> -#include <memory> -#include <string> - -#include "absl/time/clock.h" -#include "absl/time/internal/test_util.h" -#include "benchmark/benchmark.h" - -namespace { - -// -// Addition/Subtraction of a duration -// - -void BM_Time_Arithmetic(benchmark::State& state) { - const absl::Duration nano = absl::Nanoseconds(1); - const absl::Duration sec = absl::Seconds(1); - absl::Time t = absl::UnixEpoch(); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(t += nano); - benchmark::DoNotOptimize(t -= sec); - } -} -BENCHMARK(BM_Time_Arithmetic); - -// -// Time difference -// - -void BM_Time_Difference(benchmark::State& state) { - absl::Time start = absl::Now(); - absl::Time end = start + absl::Nanoseconds(1); - absl::Duration diff; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(diff += end - start); - } -} -BENCHMARK(BM_Time_Difference); - -// -// ToDateTime -// -// In each "ToDateTime" benchmark we switch between two instants -// separated by at least one transition in order to defeat any -// internal caching of previous results (e.g., see local_time_hint_). -// -// The "UTC" variants use UTC instead of the Google/local time zone. -// - -void BM_Time_ToDateTime_Absl(benchmark::State& state) { - const absl::TimeZone tz = - absl::time_internal::LoadTimeZone("America/Los_Angeles"); - absl::Time t = absl::FromUnixSeconds(1384569027); - absl::Time t2 = absl::FromUnixSeconds(1418962578); - while (state.KeepRunning()) { - std::swap(t, t2); - t += absl::Seconds(1); - benchmark::DoNotOptimize(t.In(tz)); - } -} -BENCHMARK(BM_Time_ToDateTime_Absl); - -void BM_Time_ToDateTime_Libc(benchmark::State& state) { - // No timezone support, so just use localtime. - time_t t = 1384569027; - time_t t2 = 1418962578; - while (state.KeepRunning()) { - std::swap(t, t2); - t += 1; - struct tm tm; -#if !defined(_WIN32) - benchmark::DoNotOptimize(localtime_r(&t, &tm)); -#else // _WIN32 - benchmark::DoNotOptimize(localtime_s(&tm, &t)); -#endif // _WIN32 - } -} -BENCHMARK(BM_Time_ToDateTime_Libc); - -void BM_Time_ToDateTimeUTC_Absl(benchmark::State& state) { - const absl::TimeZone tz = absl::UTCTimeZone(); - absl::Time t = absl::FromUnixSeconds(1384569027); - while (state.KeepRunning()) { - t += absl::Seconds(1); - benchmark::DoNotOptimize(t.In(tz)); - } -} -BENCHMARK(BM_Time_ToDateTimeUTC_Absl); - -void BM_Time_ToDateTimeUTC_Libc(benchmark::State& state) { - time_t t = 1384569027; - while (state.KeepRunning()) { - t += 1; - struct tm tm; -#if !defined(_WIN32) - benchmark::DoNotOptimize(gmtime_r(&t, &tm)); -#else // _WIN32 - benchmark::DoNotOptimize(gmtime_s(&tm, &t)); -#endif // _WIN32 - } -} -BENCHMARK(BM_Time_ToDateTimeUTC_Libc); - -// -// FromUnixMicros -// - -void BM_Time_FromUnixMicros(benchmark::State& state) { - int i = 0; - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::FromUnixMicros(i)); - ++i; - } -} -BENCHMARK(BM_Time_FromUnixMicros); - -void BM_Time_ToUnixNanos(benchmark::State& state) { - const absl::Time t = absl::UnixEpoch() + absl::Seconds(123); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(ToUnixNanos(t)); - } -} -BENCHMARK(BM_Time_ToUnixNanos); - -void BM_Time_ToUnixMicros(benchmark::State& state) { - const absl::Time t = absl::UnixEpoch() + absl::Seconds(123); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(ToUnixMicros(t)); - } -} -BENCHMARK(BM_Time_ToUnixMicros); - -void BM_Time_ToUnixMillis(benchmark::State& state) { - const absl::Time t = absl::UnixEpoch() + absl::Seconds(123); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(ToUnixMillis(t)); - } -} -BENCHMARK(BM_Time_ToUnixMillis); - -void BM_Time_ToUnixSeconds(benchmark::State& state) { - const absl::Time t = absl::UnixEpoch() + absl::Seconds(123); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::ToUnixSeconds(t)); - } -} -BENCHMARK(BM_Time_ToUnixSeconds); - -// -// FromCivil -// -// In each "FromCivil" benchmark we switch between two YMDhms values -// separated by at least one transition in order to defeat any internal -// caching of previous results (e.g., see time_local_hint_). -// -// The "UTC" variants use UTC instead of the Google/local time zone. -// The "Day0" variants require normalization of the day of month. -// - -void BM_Time_FromCivil_Absl(benchmark::State& state) { - const absl::TimeZone tz = - absl::time_internal::LoadTimeZone("America/Los_Angeles"); - int i = 0; - while (state.KeepRunning()) { - if ((i & 1) == 0) { - absl::FromCivil(absl::CivilSecond(2014, 12, 18, 20, 16, 18), tz); - } else { - absl::FromCivil(absl::CivilSecond(2013, 11, 15, 18, 30, 27), tz); - } - ++i; - } -} -BENCHMARK(BM_Time_FromCivil_Absl); - -void BM_Time_FromCivil_Libc(benchmark::State& state) { - // No timezone support, so just use localtime. - int i = 0; - while (state.KeepRunning()) { - struct tm tm; - if ((i & 1) == 0) { - tm.tm_year = 2014 - 1900; - tm.tm_mon = 12 - 1; - tm.tm_mday = 18; - tm.tm_hour = 20; - tm.tm_min = 16; - tm.tm_sec = 18; - } else { - tm.tm_year = 2013 - 1900; - tm.tm_mon = 11 - 1; - tm.tm_mday = 15; - tm.tm_hour = 18; - tm.tm_min = 30; - tm.tm_sec = 27; - } - tm.tm_isdst = -1; - mktime(&tm); - ++i; - } -} -BENCHMARK(BM_Time_FromCivil_Libc); - -void BM_Time_FromCivilUTC_Absl(benchmark::State& state) { - const absl::TimeZone tz = absl::UTCTimeZone(); - while (state.KeepRunning()) { - absl::FromCivil(absl::CivilSecond(2014, 12, 18, 20, 16, 18), tz); - } -} -BENCHMARK(BM_Time_FromCivilUTC_Absl); - -void BM_Time_FromCivilDay0_Absl(benchmark::State& state) { - const absl::TimeZone tz = - absl::time_internal::LoadTimeZone("America/Los_Angeles"); - int i = 0; - while (state.KeepRunning()) { - if ((i & 1) == 0) { - absl::FromCivil(absl::CivilSecond(2014, 12, 0, 20, 16, 18), tz); - } else { - absl::FromCivil(absl::CivilSecond(2013, 11, 0, 18, 30, 27), tz); - } - ++i; - } -} -BENCHMARK(BM_Time_FromCivilDay0_Absl); - -void BM_Time_FromCivilDay0_Libc(benchmark::State& state) { - // No timezone support, so just use localtime. - int i = 0; - while (state.KeepRunning()) { - struct tm tm; - if ((i & 1) == 0) { - tm.tm_year = 2014 - 1900; - tm.tm_mon = 12 - 1; - tm.tm_mday = 0; - tm.tm_hour = 20; - tm.tm_min = 16; - tm.tm_sec = 18; - } else { - tm.tm_year = 2013 - 1900; - tm.tm_mon = 11 - 1; - tm.tm_mday = 0; - tm.tm_hour = 18; - tm.tm_min = 30; - tm.tm_sec = 27; - } - tm.tm_isdst = -1; - mktime(&tm); - ++i; - } -} -BENCHMARK(BM_Time_FromCivilDay0_Libc); - -// -// To/FromTimespec -// - -void BM_Time_ToTimespec(benchmark::State& state) { - absl::Time now = absl::Now(); - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::ToTimespec(now)); - } -} -BENCHMARK(BM_Time_ToTimespec); - -void BM_Time_FromTimespec(benchmark::State& state) { - timespec ts = absl::ToTimespec(absl::Now()); - while (state.KeepRunning()) { - if (++ts.tv_nsec == 1000 * 1000 * 1000) { - ++ts.tv_sec; - ts.tv_nsec = 0; - } - benchmark::DoNotOptimize(absl::TimeFromTimespec(ts)); - } -} -BENCHMARK(BM_Time_FromTimespec); - -// -// Comparison with InfiniteFuture/Past -// - -void BM_Time_InfiniteFuture(benchmark::State& state) { - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::InfiniteFuture()); - } -} -BENCHMARK(BM_Time_InfiniteFuture); - -void BM_Time_InfinitePast(benchmark::State& state) { - while (state.KeepRunning()) { - benchmark::DoNotOptimize(absl::InfinitePast()); - } -} -BENCHMARK(BM_Time_InfinitePast); - -} // namespace diff --git a/third_party/abseil_cpp/absl/time/time_test.cc b/third_party/abseil_cpp/absl/time/time_test.cc deleted file mode 100644 index 6f89672c66..0000000000 --- a/third_party/abseil_cpp/absl/time/time_test.cc +++ /dev/null @@ -1,1274 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/time.h" - -#if defined(_MSC_VER) -#include <winsock2.h> // for timeval -#endif - -#include <chrono> // NOLINT(build/c++11) -#include <cstring> -#include <ctime> -#include <iomanip> -#include <limits> -#include <string> - -#include "gmock/gmock.h" -#include "gtest/gtest.h" -#include "absl/numeric/int128.h" -#include "absl/time/clock.h" -#include "absl/time/internal/test_util.h" - -namespace { - -#if defined(GTEST_USES_SIMPLE_RE) && GTEST_USES_SIMPLE_RE -const char kZoneAbbrRE[] = ".*"; // just punt -#else -const char kZoneAbbrRE[] = "[A-Za-z]{3,4}|[-+][0-9]{2}([0-9]{2})?"; -#endif - -// This helper is a macro so that failed expectations show up with the -// correct line numbers. -#define EXPECT_CIVIL_INFO(ci, y, m, d, h, min, s, off, isdst) \ - do { \ - EXPECT_EQ(y, ci.cs.year()); \ - EXPECT_EQ(m, ci.cs.month()); \ - EXPECT_EQ(d, ci.cs.day()); \ - EXPECT_EQ(h, ci.cs.hour()); \ - EXPECT_EQ(min, ci.cs.minute()); \ - EXPECT_EQ(s, ci.cs.second()); \ - EXPECT_EQ(off, ci.offset); \ - EXPECT_EQ(isdst, ci.is_dst); \ - EXPECT_THAT(ci.zone_abbr, testing::MatchesRegex(kZoneAbbrRE)); \ - } while (0) - -// A gMock matcher to match timespec values. Use this matcher like: -// timespec ts1, ts2; -// EXPECT_THAT(ts1, TimespecMatcher(ts2)); -MATCHER_P(TimespecMatcher, ts, "") { - if (ts.tv_sec == arg.tv_sec && ts.tv_nsec == arg.tv_nsec) - return true; - *result_listener << "expected: {" << ts.tv_sec << ", " << ts.tv_nsec << "} "; - *result_listener << "actual: {" << arg.tv_sec << ", " << arg.tv_nsec << "}"; - return false; -} - -// A gMock matcher to match timeval values. Use this matcher like: -// timeval tv1, tv2; -// EXPECT_THAT(tv1, TimevalMatcher(tv2)); -MATCHER_P(TimevalMatcher, tv, "") { - if (tv.tv_sec == arg.tv_sec && tv.tv_usec == arg.tv_usec) - return true; - *result_listener << "expected: {" << tv.tv_sec << ", " << tv.tv_usec << "} "; - *result_listener << "actual: {" << arg.tv_sec << ", " << arg.tv_usec << "}"; - return false; -} - -TEST(Time, ConstExpr) { - constexpr absl::Time t0 = absl::UnixEpoch(); - static_assert(t0 == absl::Time(), "UnixEpoch"); - constexpr absl::Time t1 = absl::InfiniteFuture(); - static_assert(t1 != absl::Time(), "InfiniteFuture"); - constexpr absl::Time t2 = absl::InfinitePast(); - static_assert(t2 != absl::Time(), "InfinitePast"); - constexpr absl::Time t3 = absl::FromUnixNanos(0); - static_assert(t3 == absl::Time(), "FromUnixNanos"); - constexpr absl::Time t4 = absl::FromUnixMicros(0); - static_assert(t4 == absl::Time(), "FromUnixMicros"); - constexpr absl::Time t5 = absl::FromUnixMillis(0); - static_assert(t5 == absl::Time(), "FromUnixMillis"); - constexpr absl::Time t6 = absl::FromUnixSeconds(0); - static_assert(t6 == absl::Time(), "FromUnixSeconds"); - constexpr absl::Time t7 = absl::FromTimeT(0); - static_assert(t7 == absl::Time(), "FromTimeT"); -} - -TEST(Time, ValueSemantics) { - absl::Time a; // Default construction - absl::Time b = a; // Copy construction - EXPECT_EQ(a, b); - absl::Time c(a); // Copy construction (again) - EXPECT_EQ(a, b); - EXPECT_EQ(a, c); - EXPECT_EQ(b, c); - b = c; // Assignment - EXPECT_EQ(a, b); - EXPECT_EQ(a, c); - EXPECT_EQ(b, c); -} - -TEST(Time, UnixEpoch) { - const auto ci = absl::UTCTimeZone().At(absl::UnixEpoch()); - EXPECT_EQ(absl::CivilSecond(1970, 1, 1, 0, 0, 0), ci.cs); - EXPECT_EQ(absl::ZeroDuration(), ci.subsecond); - EXPECT_EQ(absl::Weekday::thursday, absl::GetWeekday(ci.cs)); -} - -TEST(Time, Breakdown) { - absl::TimeZone tz = absl::time_internal::LoadTimeZone("America/New_York"); - absl::Time t = absl::UnixEpoch(); - - // The Unix epoch as seen in NYC. - auto ci = tz.At(t); - EXPECT_CIVIL_INFO(ci, 1969, 12, 31, 19, 0, 0, -18000, false); - EXPECT_EQ(absl::ZeroDuration(), ci.subsecond); - EXPECT_EQ(absl::Weekday::wednesday, absl::GetWeekday(ci.cs)); - - // Just before the epoch. - t -= absl::Nanoseconds(1); - ci = tz.At(t); - EXPECT_CIVIL_INFO(ci, 1969, 12, 31, 18, 59, 59, -18000, false); - EXPECT_EQ(absl::Nanoseconds(999999999), ci.subsecond); - EXPECT_EQ(absl::Weekday::wednesday, absl::GetWeekday(ci.cs)); - - // Some time later. - t += absl::Hours(24) * 2735; - t += absl::Hours(18) + absl::Minutes(30) + absl::Seconds(15) + - absl::Nanoseconds(9); - ci = tz.At(t); - EXPECT_CIVIL_INFO(ci, 1977, 6, 28, 14, 30, 15, -14400, true); - EXPECT_EQ(8, ci.subsecond / absl::Nanoseconds(1)); - EXPECT_EQ(absl::Weekday::tuesday, absl::GetWeekday(ci.cs)); -} - -TEST(Time, AdditiveOperators) { - const absl::Duration d = absl::Nanoseconds(1); - const absl::Time t0; - const absl::Time t1 = t0 + d; - - EXPECT_EQ(d, t1 - t0); - EXPECT_EQ(-d, t0 - t1); - EXPECT_EQ(t0, t1 - d); - - absl::Time t(t0); - EXPECT_EQ(t0, t); - t += d; - EXPECT_EQ(t0 + d, t); - EXPECT_EQ(d, t - t0); - t -= d; - EXPECT_EQ(t0, t); - - // Tests overflow between subseconds and seconds. - t = absl::UnixEpoch(); - t += absl::Milliseconds(500); - EXPECT_EQ(absl::UnixEpoch() + absl::Milliseconds(500), t); - t += absl::Milliseconds(600); - EXPECT_EQ(absl::UnixEpoch() + absl::Milliseconds(1100), t); - t -= absl::Milliseconds(600); - EXPECT_EQ(absl::UnixEpoch() + absl::Milliseconds(500), t); - t -= absl::Milliseconds(500); - EXPECT_EQ(absl::UnixEpoch(), t); -} - -TEST(Time, RelationalOperators) { - constexpr absl::Time t1 = absl::FromUnixNanos(0); - constexpr absl::Time t2 = absl::FromUnixNanos(1); - constexpr absl::Time t3 = absl::FromUnixNanos(2); - - static_assert(absl::Time() == t1, ""); - static_assert(t1 == t1, ""); - static_assert(t2 == t2, ""); - static_assert(t3 == t3, ""); - - static_assert(t1 < t2, ""); - static_assert(t2 < t3, ""); - static_assert(t1 < t3, ""); - - static_assert(t1 <= t1, ""); - static_assert(t1 <= t2, ""); - static_assert(t2 <= t2, ""); - static_assert(t2 <= t3, ""); - static_assert(t3 <= t3, ""); - static_assert(t1 <= t3, ""); - - static_assert(t2 > t1, ""); - static_assert(t3 > t2, ""); - static_assert(t3 > t1, ""); - - static_assert(t2 >= t2, ""); - static_assert(t2 >= t1, ""); - static_assert(t3 >= t3, ""); - static_assert(t3 >= t2, ""); - static_assert(t1 >= t1, ""); - static_assert(t3 >= t1, ""); -} - -TEST(Time, Infinity) { - constexpr absl::Time ifuture = absl::InfiniteFuture(); - constexpr absl::Time ipast = absl::InfinitePast(); - - static_assert(ifuture == ifuture, ""); - static_assert(ipast == ipast, ""); - static_assert(ipast < ifuture, ""); - static_assert(ifuture > ipast, ""); - - // Arithmetic saturates - EXPECT_EQ(ifuture, ifuture + absl::Seconds(1)); - EXPECT_EQ(ifuture, ifuture - absl::Seconds(1)); - EXPECT_EQ(ipast, ipast + absl::Seconds(1)); - EXPECT_EQ(ipast, ipast - absl::Seconds(1)); - - EXPECT_EQ(absl::InfiniteDuration(), ifuture - ifuture); - EXPECT_EQ(absl::InfiniteDuration(), ifuture - ipast); - EXPECT_EQ(-absl::InfiniteDuration(), ipast - ifuture); - EXPECT_EQ(-absl::InfiniteDuration(), ipast - ipast); - - constexpr absl::Time t = absl::UnixEpoch(); // Any finite time. - static_assert(t < ifuture, ""); - static_assert(t > ipast, ""); -} - -TEST(Time, FloorConversion) { -#define TEST_FLOOR_CONVERSION(TO, FROM) \ - EXPECT_EQ(1, TO(FROM(1001))); \ - EXPECT_EQ(1, TO(FROM(1000))); \ - EXPECT_EQ(0, TO(FROM(999))); \ - EXPECT_EQ(0, TO(FROM(1))); \ - EXPECT_EQ(0, TO(FROM(0))); \ - EXPECT_EQ(-1, TO(FROM(-1))); \ - EXPECT_EQ(-1, TO(FROM(-999))); \ - EXPECT_EQ(-1, TO(FROM(-1000))); \ - EXPECT_EQ(-2, TO(FROM(-1001))); - - TEST_FLOOR_CONVERSION(absl::ToUnixMicros, absl::FromUnixNanos); - TEST_FLOOR_CONVERSION(absl::ToUnixMillis, absl::FromUnixMicros); - TEST_FLOOR_CONVERSION(absl::ToUnixSeconds, absl::FromUnixMillis); - TEST_FLOOR_CONVERSION(absl::ToTimeT, absl::FromUnixMillis); - -#undef TEST_FLOOR_CONVERSION - - // Tests ToUnixNanos. - EXPECT_EQ(1, absl::ToUnixNanos(absl::UnixEpoch() + absl::Nanoseconds(3) / 2)); - EXPECT_EQ(1, absl::ToUnixNanos(absl::UnixEpoch() + absl::Nanoseconds(1))); - EXPECT_EQ(0, absl::ToUnixNanos(absl::UnixEpoch() + absl::Nanoseconds(1) / 2)); - EXPECT_EQ(0, absl::ToUnixNanos(absl::UnixEpoch() + absl::Nanoseconds(0))); - EXPECT_EQ(-1, - absl::ToUnixNanos(absl::UnixEpoch() - absl::Nanoseconds(1) / 2)); - EXPECT_EQ(-1, absl::ToUnixNanos(absl::UnixEpoch() - absl::Nanoseconds(1))); - EXPECT_EQ(-2, - absl::ToUnixNanos(absl::UnixEpoch() - absl::Nanoseconds(3) / 2)); - - // Tests ToUniversal, which uses a different epoch than the tests above. - EXPECT_EQ(1, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(101))); - EXPECT_EQ(1, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(100))); - EXPECT_EQ(0, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(99))); - EXPECT_EQ(0, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(1))); - EXPECT_EQ(0, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(0))); - EXPECT_EQ(-1, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(-1))); - EXPECT_EQ(-1, - absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(-99))); - EXPECT_EQ( - -1, absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(-100))); - EXPECT_EQ( - -2, absl::ToUniversal(absl::UniversalEpoch() + absl::Nanoseconds(-101))); - - // Tests ToTimespec()/TimeFromTimespec() - const struct { - absl::Time t; - timespec ts; - } to_ts[] = { - {absl::FromUnixSeconds(1) + absl::Nanoseconds(1), {1, 1}}, - {absl::FromUnixSeconds(1) + absl::Nanoseconds(1) / 2, {1, 0}}, - {absl::FromUnixSeconds(1) + absl::Nanoseconds(0), {1, 0}}, - {absl::FromUnixSeconds(0) + absl::Nanoseconds(0), {0, 0}}, - {absl::FromUnixSeconds(0) - absl::Nanoseconds(1) / 2, {-1, 999999999}}, - {absl::FromUnixSeconds(0) - absl::Nanoseconds(1), {-1, 999999999}}, - {absl::FromUnixSeconds(-1) + absl::Nanoseconds(1), {-1, 1}}, - {absl::FromUnixSeconds(-1) + absl::Nanoseconds(1) / 2, {-1, 0}}, - {absl::FromUnixSeconds(-1) + absl::Nanoseconds(0), {-1, 0}}, - {absl::FromUnixSeconds(-1) - absl::Nanoseconds(1) / 2, {-2, 999999999}}, - }; - for (const auto& test : to_ts) { - EXPECT_THAT(absl::ToTimespec(test.t), TimespecMatcher(test.ts)); - } - const struct { - timespec ts; - absl::Time t; - } from_ts[] = { - {{1, 1}, absl::FromUnixSeconds(1) + absl::Nanoseconds(1)}, - {{1, 0}, absl::FromUnixSeconds(1) + absl::Nanoseconds(0)}, - {{0, 0}, absl::FromUnixSeconds(0) + absl::Nanoseconds(0)}, - {{0, -1}, absl::FromUnixSeconds(0) - absl::Nanoseconds(1)}, - {{-1, 999999999}, absl::FromUnixSeconds(0) - absl::Nanoseconds(1)}, - {{-1, 1}, absl::FromUnixSeconds(-1) + absl::Nanoseconds(1)}, - {{-1, 0}, absl::FromUnixSeconds(-1) + absl::Nanoseconds(0)}, - {{-1, -1}, absl::FromUnixSeconds(-1) - absl::Nanoseconds(1)}, - {{-2, 999999999}, absl::FromUnixSeconds(-1) - absl::Nanoseconds(1)}, - }; - for (const auto& test : from_ts) { - EXPECT_EQ(test.t, absl::TimeFromTimespec(test.ts)); - } - - // Tests ToTimeval()/TimeFromTimeval() (same as timespec above) - const struct { - absl::Time t; - timeval tv; - } to_tv[] = { - {absl::FromUnixSeconds(1) + absl::Microseconds(1), {1, 1}}, - {absl::FromUnixSeconds(1) + absl::Microseconds(1) / 2, {1, 0}}, - {absl::FromUnixSeconds(1) + absl::Microseconds(0), {1, 0}}, - {absl::FromUnixSeconds(0) + absl::Microseconds(0), {0, 0}}, - {absl::FromUnixSeconds(0) - absl::Microseconds(1) / 2, {-1, 999999}}, - {absl::FromUnixSeconds(0) - absl::Microseconds(1), {-1, 999999}}, - {absl::FromUnixSeconds(-1) + absl::Microseconds(1), {-1, 1}}, - {absl::FromUnixSeconds(-1) + absl::Microseconds(1) / 2, {-1, 0}}, - {absl::FromUnixSeconds(-1) + absl::Microseconds(0), {-1, 0}}, - {absl::FromUnixSeconds(-1) - absl::Microseconds(1) / 2, {-2, 999999}}, - }; - for (const auto& test : to_tv) { - EXPECT_THAT(ToTimeval(test.t), TimevalMatcher(test.tv)); - } - const struct { - timeval tv; - absl::Time t; - } from_tv[] = { - {{1, 1}, absl::FromUnixSeconds(1) + absl::Microseconds(1)}, - {{1, 0}, absl::FromUnixSeconds(1) + absl::Microseconds(0)}, - {{0, 0}, absl::FromUnixSeconds(0) + absl::Microseconds(0)}, - {{0, -1}, absl::FromUnixSeconds(0) - absl::Microseconds(1)}, - {{-1, 999999}, absl::FromUnixSeconds(0) - absl::Microseconds(1)}, - {{-1, 1}, absl::FromUnixSeconds(-1) + absl::Microseconds(1)}, - {{-1, 0}, absl::FromUnixSeconds(-1) + absl::Microseconds(0)}, - {{-1, -1}, absl::FromUnixSeconds(-1) - absl::Microseconds(1)}, - {{-2, 999999}, absl::FromUnixSeconds(-1) - absl::Microseconds(1)}, - }; - for (const auto& test : from_tv) { - EXPECT_EQ(test.t, absl::TimeFromTimeval(test.tv)); - } - - // Tests flooring near negative infinity. - const int64_t min_plus_1 = std::numeric_limits<int64_t>::min() + 1; - EXPECT_EQ(min_plus_1, absl::ToUnixSeconds(absl::FromUnixSeconds(min_plus_1))); - EXPECT_EQ(std::numeric_limits<int64_t>::min(), - absl::ToUnixSeconds( - absl::FromUnixSeconds(min_plus_1) - absl::Nanoseconds(1) / 2)); - - // Tests flooring near positive infinity. - EXPECT_EQ(std::numeric_limits<int64_t>::max(), - absl::ToUnixSeconds(absl::FromUnixSeconds( - std::numeric_limits<int64_t>::max()) + absl::Nanoseconds(1) / 2)); - EXPECT_EQ(std::numeric_limits<int64_t>::max(), - absl::ToUnixSeconds( - absl::FromUnixSeconds(std::numeric_limits<int64_t>::max()))); - EXPECT_EQ(std::numeric_limits<int64_t>::max() - 1, - absl::ToUnixSeconds(absl::FromUnixSeconds( - std::numeric_limits<int64_t>::max()) - absl::Nanoseconds(1) / 2)); -} - -TEST(Time, RoundtripConversion) { -#define TEST_CONVERSION_ROUND_TRIP(SOURCE, FROM, TO, MATCHER) \ - EXPECT_THAT(TO(FROM(SOURCE)), MATCHER(SOURCE)) - - // FromUnixNanos() and ToUnixNanos() - int64_t now_ns = absl::GetCurrentTimeNanos(); - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUnixNanos, absl::ToUnixNanos, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromUnixNanos, absl::ToUnixNanos, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromUnixNanos, absl::ToUnixNanos, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(now_ns, absl::FromUnixNanos, absl::ToUnixNanos, - testing::Eq) - << now_ns; - - // FromUnixMicros() and ToUnixMicros() - int64_t now_us = absl::GetCurrentTimeNanos() / 1000; - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUnixMicros, absl::ToUnixMicros, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromUnixMicros, absl::ToUnixMicros, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromUnixMicros, absl::ToUnixMicros, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(now_us, absl::FromUnixMicros, absl::ToUnixMicros, - testing::Eq) - << now_us; - - // FromUnixMillis() and ToUnixMillis() - int64_t now_ms = absl::GetCurrentTimeNanos() / 1000000; - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUnixMillis, absl::ToUnixMillis, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromUnixMillis, absl::ToUnixMillis, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromUnixMillis, absl::ToUnixMillis, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(now_ms, absl::FromUnixMillis, absl::ToUnixMillis, - testing::Eq) - << now_ms; - - // FromUnixSeconds() and ToUnixSeconds() - int64_t now_s = std::time(nullptr); - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUnixSeconds, absl::ToUnixSeconds, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromUnixSeconds, absl::ToUnixSeconds, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromUnixSeconds, absl::ToUnixSeconds, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(now_s, absl::FromUnixSeconds, absl::ToUnixSeconds, - testing::Eq) - << now_s; - - // FromTimeT() and ToTimeT() - time_t now_time_t = std::time(nullptr); - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromTimeT, absl::ToTimeT, testing::Eq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromTimeT, absl::ToTimeT, testing::Eq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromTimeT, absl::ToTimeT, testing::Eq); - TEST_CONVERSION_ROUND_TRIP(now_time_t, absl::FromTimeT, absl::ToTimeT, - testing::Eq) - << now_time_t; - - // TimeFromTimeval() and ToTimeval() - timeval tv; - tv.tv_sec = -1; - tv.tv_usec = 0; - TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval, - TimevalMatcher); - tv.tv_sec = -1; - tv.tv_usec = 999999; - TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval, - TimevalMatcher); - tv.tv_sec = 0; - tv.tv_usec = 0; - TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval, - TimevalMatcher); - tv.tv_sec = 0; - tv.tv_usec = 1; - TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval, - TimevalMatcher); - tv.tv_sec = 1; - tv.tv_usec = 0; - TEST_CONVERSION_ROUND_TRIP(tv, absl::TimeFromTimeval, absl::ToTimeval, - TimevalMatcher); - - // TimeFromTimespec() and ToTimespec() - timespec ts; - ts.tv_sec = -1; - ts.tv_nsec = 0; - TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec, - TimespecMatcher); - ts.tv_sec = -1; - ts.tv_nsec = 999999999; - TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec, - TimespecMatcher); - ts.tv_sec = 0; - ts.tv_nsec = 0; - TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec, - TimespecMatcher); - ts.tv_sec = 0; - ts.tv_nsec = 1; - TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec, - TimespecMatcher); - ts.tv_sec = 1; - ts.tv_nsec = 0; - TEST_CONVERSION_ROUND_TRIP(ts, absl::TimeFromTimespec, absl::ToTimespec, - TimespecMatcher); - - // FromUDate() and ToUDate() - double now_ud = absl::GetCurrentTimeNanos() / 1000000; - TEST_CONVERSION_ROUND_TRIP(-1.5, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(-0.5, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(0.5, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(1.5, absl::FromUDate, absl::ToUDate, - testing::DoubleEq); - TEST_CONVERSION_ROUND_TRIP(now_ud, absl::FromUDate, absl::ToUDate, - testing::DoubleEq) - << std::fixed << std::setprecision(17) << now_ud; - - // FromUniversal() and ToUniversal() - int64_t now_uni = ((719162LL * (24 * 60 * 60)) * (1000 * 1000 * 10)) + - (absl::GetCurrentTimeNanos() / 100); - TEST_CONVERSION_ROUND_TRIP(-1, absl::FromUniversal, absl::ToUniversal, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(0, absl::FromUniversal, absl::ToUniversal, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(1, absl::FromUniversal, absl::ToUniversal, - testing::Eq); - TEST_CONVERSION_ROUND_TRIP(now_uni, absl::FromUniversal, absl::ToUniversal, - testing::Eq) - << now_uni; - -#undef TEST_CONVERSION_ROUND_TRIP -} - -template <typename Duration> -std::chrono::system_clock::time_point MakeChronoUnixTime(const Duration& d) { - return std::chrono::system_clock::from_time_t(0) + d; -} - -TEST(Time, FromChrono) { - EXPECT_EQ(absl::FromTimeT(-1), - absl::FromChrono(std::chrono::system_clock::from_time_t(-1))); - EXPECT_EQ(absl::FromTimeT(0), - absl::FromChrono(std::chrono::system_clock::from_time_t(0))); - EXPECT_EQ(absl::FromTimeT(1), - absl::FromChrono(std::chrono::system_clock::from_time_t(1))); - - EXPECT_EQ( - absl::FromUnixMillis(-1), - absl::FromChrono(MakeChronoUnixTime(std::chrono::milliseconds(-1)))); - EXPECT_EQ(absl::FromUnixMillis(0), - absl::FromChrono(MakeChronoUnixTime(std::chrono::milliseconds(0)))); - EXPECT_EQ(absl::FromUnixMillis(1), - absl::FromChrono(MakeChronoUnixTime(std::chrono::milliseconds(1)))); - - // Chrono doesn't define exactly its range and precision (neither does - // absl::Time), so let's simply test +/- ~100 years to make sure things work. - const auto century_sec = 60 * 60 * 24 * 365 * int64_t{100}; - const auto century = std::chrono::seconds(century_sec); - const auto chrono_future = MakeChronoUnixTime(century); - const auto chrono_past = MakeChronoUnixTime(-century); - EXPECT_EQ(absl::FromUnixSeconds(century_sec), - absl::FromChrono(chrono_future)); - EXPECT_EQ(absl::FromUnixSeconds(-century_sec), absl::FromChrono(chrono_past)); - - // Roundtrip them both back to chrono. - EXPECT_EQ(chrono_future, - absl::ToChronoTime(absl::FromUnixSeconds(century_sec))); - EXPECT_EQ(chrono_past, - absl::ToChronoTime(absl::FromUnixSeconds(-century_sec))); -} - -TEST(Time, ToChronoTime) { - EXPECT_EQ(std::chrono::system_clock::from_time_t(-1), - absl::ToChronoTime(absl::FromTimeT(-1))); - EXPECT_EQ(std::chrono::system_clock::from_time_t(0), - absl::ToChronoTime(absl::FromTimeT(0))); - EXPECT_EQ(std::chrono::system_clock::from_time_t(1), - absl::ToChronoTime(absl::FromTimeT(1))); - - EXPECT_EQ(MakeChronoUnixTime(std::chrono::milliseconds(-1)), - absl::ToChronoTime(absl::FromUnixMillis(-1))); - EXPECT_EQ(MakeChronoUnixTime(std::chrono::milliseconds(0)), - absl::ToChronoTime(absl::FromUnixMillis(0))); - EXPECT_EQ(MakeChronoUnixTime(std::chrono::milliseconds(1)), - absl::ToChronoTime(absl::FromUnixMillis(1))); - - // Time before the Unix epoch should floor, not trunc. - const auto tick = absl::Nanoseconds(1) / 4; - EXPECT_EQ(std::chrono::system_clock::from_time_t(0) - - std::chrono::system_clock::duration(1), - absl::ToChronoTime(absl::UnixEpoch() - tick)); -} - -// Check that absl::int128 works as a std::chrono::duration representation. -TEST(Time, Chrono128) { - // Define a std::chrono::time_point type whose time[sic]_since_epoch() is - // a signed 128-bit count of attoseconds. This has a range and resolution - // (currently) beyond those of absl::Time, and undoubtedly also beyond those - // of std::chrono::system_clock::time_point. - // - // Note: The to/from-chrono support should probably be updated to handle - // such wide representations. - using Timestamp = - std::chrono::time_point<std::chrono::system_clock, - std::chrono::duration<absl::int128, std::atto>>; - - // Expect that we can round-trip the std::chrono::system_clock::time_point - // extremes through both absl::Time and Timestamp, and that Timestamp can - // handle the (current) absl::Time extremes. - // - // Note: We should use std::chrono::floor() instead of time_point_cast(), - // but floor() is only available since c++17. - for (const auto tp : {std::chrono::system_clock::time_point::min(), - std::chrono::system_clock::time_point::max()}) { - EXPECT_EQ(tp, absl::ToChronoTime(absl::FromChrono(tp))); - EXPECT_EQ(tp, std::chrono::time_point_cast< - std::chrono::system_clock::time_point::duration>( - std::chrono::time_point_cast<Timestamp::duration>(tp))); - } - Timestamp::duration::rep v = std::numeric_limits<int64_t>::min(); - v *= Timestamp::duration::period::den; - auto ts = Timestamp(Timestamp::duration(v)); - ts += std::chrono::duration<int64_t, std::atto>(0); - EXPECT_EQ(std::numeric_limits<int64_t>::min(), - ts.time_since_epoch().count() / Timestamp::duration::period::den); - EXPECT_EQ(0, - ts.time_since_epoch().count() % Timestamp::duration::period::den); - v = std::numeric_limits<int64_t>::max(); - v *= Timestamp::duration::period::den; - ts = Timestamp(Timestamp::duration(v)); - ts += std::chrono::duration<int64_t, std::atto>(999999999750000000); - EXPECT_EQ(std::numeric_limits<int64_t>::max(), - ts.time_since_epoch().count() / Timestamp::duration::period::den); - EXPECT_EQ(999999999750000000, - ts.time_since_epoch().count() % Timestamp::duration::period::den); -} - -TEST(Time, TimeZoneAt) { - const absl::TimeZone nyc = - absl::time_internal::LoadTimeZone("America/New_York"); - const std::string fmt = "%a, %e %b %Y %H:%M:%S %z (%Z)"; - - // A non-transition where the civil time is unique. - absl::CivilSecond nov01(2013, 11, 1, 8, 30, 0); - const auto nov01_ci = nyc.At(nov01); - EXPECT_EQ(absl::TimeZone::TimeInfo::UNIQUE, nov01_ci.kind); - EXPECT_EQ("Fri, 1 Nov 2013 08:30:00 -0400 (EDT)", - absl::FormatTime(fmt, nov01_ci.pre, nyc)); - EXPECT_EQ(nov01_ci.pre, nov01_ci.trans); - EXPECT_EQ(nov01_ci.pre, nov01_ci.post); - EXPECT_EQ(nov01_ci.pre, absl::FromCivil(nov01, nyc)); - - // A Spring DST transition, when there is a gap in civil time - // and we prefer the later of the possible interpretations of a - // non-existent time. - absl::CivilSecond mar13(2011, 3, 13, 2, 15, 0); - const auto mar_ci = nyc.At(mar13); - EXPECT_EQ(absl::TimeZone::TimeInfo::SKIPPED, mar_ci.kind); - EXPECT_EQ("Sun, 13 Mar 2011 03:15:00 -0400 (EDT)", - absl::FormatTime(fmt, mar_ci.pre, nyc)); - EXPECT_EQ("Sun, 13 Mar 2011 03:00:00 -0400 (EDT)", - absl::FormatTime(fmt, mar_ci.trans, nyc)); - EXPECT_EQ("Sun, 13 Mar 2011 01:15:00 -0500 (EST)", - absl::FormatTime(fmt, mar_ci.post, nyc)); - EXPECT_EQ(mar_ci.trans, absl::FromCivil(mar13, nyc)); - - // A Fall DST transition, when civil times are repeated and - // we prefer the earlier of the possible interpretations of an - // ambiguous time. - absl::CivilSecond nov06(2011, 11, 6, 1, 15, 0); - const auto nov06_ci = nyc.At(nov06); - EXPECT_EQ(absl::TimeZone::TimeInfo::REPEATED, nov06_ci.kind); - EXPECT_EQ("Sun, 6 Nov 2011 01:15:00 -0400 (EDT)", - absl::FormatTime(fmt, nov06_ci.pre, nyc)); - EXPECT_EQ("Sun, 6 Nov 2011 01:00:00 -0500 (EST)", - absl::FormatTime(fmt, nov06_ci.trans, nyc)); - EXPECT_EQ("Sun, 6 Nov 2011 01:15:00 -0500 (EST)", - absl::FormatTime(fmt, nov06_ci.post, nyc)); - EXPECT_EQ(nov06_ci.pre, absl::FromCivil(nov06, nyc)); - - // Check that (time_t) -1 is handled correctly. - absl::CivilSecond minus1(1969, 12, 31, 18, 59, 59); - const auto minus1_cl = nyc.At(minus1); - EXPECT_EQ(absl::TimeZone::TimeInfo::UNIQUE, minus1_cl.kind); - EXPECT_EQ(-1, absl::ToTimeT(minus1_cl.pre)); - EXPECT_EQ("Wed, 31 Dec 1969 18:59:59 -0500 (EST)", - absl::FormatTime(fmt, minus1_cl.pre, nyc)); - EXPECT_EQ("Wed, 31 Dec 1969 23:59:59 +0000 (UTC)", - absl::FormatTime(fmt, minus1_cl.pre, absl::UTCTimeZone())); -} - -// FromCivil(CivilSecond(year, mon, day, hour, min, sec), UTCTimeZone()) -// has a specialized fastpath implementation, which we exercise here. -TEST(Time, FromCivilUTC) { - const absl::TimeZone utc = absl::UTCTimeZone(); - const std::string fmt = "%a, %e %b %Y %H:%M:%S %z (%Z)"; - const int kMax = std::numeric_limits<int>::max(); - const int kMin = std::numeric_limits<int>::min(); - absl::Time t; - - // 292091940881 is the last positive year to use the fastpath. - t = absl::FromCivil( - absl::CivilSecond(292091940881, kMax, kMax, kMax, kMax, kMax), utc); - EXPECT_EQ("Fri, 25 Nov 292277026596 12:21:07 +0000 (UTC)", - absl::FormatTime(fmt, t, utc)); - t = absl::FromCivil( - absl::CivilSecond(292091940882, kMax, kMax, kMax, kMax, kMax), utc); - EXPECT_EQ("infinite-future", absl::FormatTime(fmt, t, utc)); // no overflow - - // -292091936940 is the last negative year to use the fastpath. - t = absl::FromCivil( - absl::CivilSecond(-292091936940, kMin, kMin, kMin, kMin, kMin), utc); - EXPECT_EQ("Fri, 1 Nov -292277022657 10:37:52 +0000 (UTC)", - absl::FormatTime(fmt, t, utc)); - t = absl::FromCivil( - absl::CivilSecond(-292091936941, kMin, kMin, kMin, kMin, kMin), utc); - EXPECT_EQ("infinite-past", absl::FormatTime(fmt, t, utc)); // no underflow - - // Check that we're counting leap years correctly. - t = absl::FromCivil(absl::CivilSecond(1900, 2, 28, 23, 59, 59), utc); - EXPECT_EQ("Wed, 28 Feb 1900 23:59:59 +0000 (UTC)", - absl::FormatTime(fmt, t, utc)); - t = absl::FromCivil(absl::CivilSecond(1900, 3, 1, 0, 0, 0), utc); - EXPECT_EQ("Thu, 1 Mar 1900 00:00:00 +0000 (UTC)", - absl::FormatTime(fmt, t, utc)); - t = absl::FromCivil(absl::CivilSecond(2000, 2, 29, 23, 59, 59), utc); - EXPECT_EQ("Tue, 29 Feb 2000 23:59:59 +0000 (UTC)", - absl::FormatTime(fmt, t, utc)); - t = absl::FromCivil(absl::CivilSecond(2000, 3, 1, 0, 0, 0), utc); - EXPECT_EQ("Wed, 1 Mar 2000 00:00:00 +0000 (UTC)", - absl::FormatTime(fmt, t, utc)); -} - -TEST(Time, ToTM) { - const absl::TimeZone utc = absl::UTCTimeZone(); - - // Compares the results of ToTM() to gmtime_r() for lots of times over the - // course of a few days. - const absl::Time start = - absl::FromCivil(absl::CivilSecond(2014, 1, 2, 3, 4, 5), utc); - const absl::Time end = - absl::FromCivil(absl::CivilSecond(2014, 1, 5, 3, 4, 5), utc); - for (absl::Time t = start; t < end; t += absl::Seconds(30)) { - const struct tm tm_bt = ToTM(t, utc); - const time_t tt = absl::ToTimeT(t); - struct tm tm_lc; -#ifdef _WIN32 - gmtime_s(&tm_lc, &tt); -#else - gmtime_r(&tt, &tm_lc); -#endif - EXPECT_EQ(tm_lc.tm_year, tm_bt.tm_year); - EXPECT_EQ(tm_lc.tm_mon, tm_bt.tm_mon); - EXPECT_EQ(tm_lc.tm_mday, tm_bt.tm_mday); - EXPECT_EQ(tm_lc.tm_hour, tm_bt.tm_hour); - EXPECT_EQ(tm_lc.tm_min, tm_bt.tm_min); - EXPECT_EQ(tm_lc.tm_sec, tm_bt.tm_sec); - EXPECT_EQ(tm_lc.tm_wday, tm_bt.tm_wday); - EXPECT_EQ(tm_lc.tm_yday, tm_bt.tm_yday); - EXPECT_EQ(tm_lc.tm_isdst, tm_bt.tm_isdst); - - ASSERT_FALSE(HasFailure()); - } - - // Checks that the tm_isdst field is correct when in standard time. - const absl::TimeZone nyc = - absl::time_internal::LoadTimeZone("America/New_York"); - absl::Time t = absl::FromCivil(absl::CivilSecond(2014, 3, 1, 0, 0, 0), nyc); - struct tm tm = ToTM(t, nyc); - EXPECT_FALSE(tm.tm_isdst); - - // Checks that the tm_isdst field is correct when in daylight time. - t = absl::FromCivil(absl::CivilSecond(2014, 4, 1, 0, 0, 0), nyc); - tm = ToTM(t, nyc); - EXPECT_TRUE(tm.tm_isdst); - - // Checks overflow. - tm = ToTM(absl::InfiniteFuture(), nyc); - EXPECT_EQ(std::numeric_limits<int>::max() - 1900, tm.tm_year); - EXPECT_EQ(11, tm.tm_mon); - EXPECT_EQ(31, tm.tm_mday); - EXPECT_EQ(23, tm.tm_hour); - EXPECT_EQ(59, tm.tm_min); - EXPECT_EQ(59, tm.tm_sec); - EXPECT_EQ(4, tm.tm_wday); - EXPECT_EQ(364, tm.tm_yday); - EXPECT_FALSE(tm.tm_isdst); - - // Checks underflow. - tm = ToTM(absl::InfinitePast(), nyc); - EXPECT_EQ(std::numeric_limits<int>::min(), tm.tm_year); - EXPECT_EQ(0, tm.tm_mon); - EXPECT_EQ(1, tm.tm_mday); - EXPECT_EQ(0, tm.tm_hour); - EXPECT_EQ(0, tm.tm_min); - EXPECT_EQ(0, tm.tm_sec); - EXPECT_EQ(0, tm.tm_wday); - EXPECT_EQ(0, tm.tm_yday); - EXPECT_FALSE(tm.tm_isdst); -} - -TEST(Time, FromTM) { - const absl::TimeZone nyc = - absl::time_internal::LoadTimeZone("America/New_York"); - - // Verifies that tm_isdst doesn't affect anything when the time is unique. - struct tm tm; - std::memset(&tm, 0, sizeof(tm)); - tm.tm_year = 2014 - 1900; - tm.tm_mon = 6 - 1; - tm.tm_mday = 28; - tm.tm_hour = 1; - tm.tm_min = 2; - tm.tm_sec = 3; - tm.tm_isdst = -1; - absl::Time t = FromTM(tm, nyc); - EXPECT_EQ("2014-06-28T01:02:03-04:00", absl::FormatTime(t, nyc)); // DST - tm.tm_isdst = 0; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-06-28T01:02:03-04:00", absl::FormatTime(t, nyc)); // DST - tm.tm_isdst = 1; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-06-28T01:02:03-04:00", absl::FormatTime(t, nyc)); // DST - - // Adjusts tm to refer to an ambiguous time. - tm.tm_year = 2014 - 1900; - tm.tm_mon = 11 - 1; - tm.tm_mday = 2; - tm.tm_hour = 1; - tm.tm_min = 30; - tm.tm_sec = 42; - tm.tm_isdst = -1; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-11-02T01:30:42-04:00", absl::FormatTime(t, nyc)); // DST - tm.tm_isdst = 0; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-11-02T01:30:42-05:00", absl::FormatTime(t, nyc)); // STD - tm.tm_isdst = 1; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-11-02T01:30:42-04:00", absl::FormatTime(t, nyc)); // DST - - // Adjusts tm to refer to a skipped time. - tm.tm_year = 2014 - 1900; - tm.tm_mon = 3 - 1; - tm.tm_mday = 9; - tm.tm_hour = 2; - tm.tm_min = 30; - tm.tm_sec = 42; - tm.tm_isdst = -1; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-03-09T03:30:42-04:00", absl::FormatTime(t, nyc)); // DST - tm.tm_isdst = 0; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-03-09T01:30:42-05:00", absl::FormatTime(t, nyc)); // STD - tm.tm_isdst = 1; - t = FromTM(tm, nyc); - EXPECT_EQ("2014-03-09T03:30:42-04:00", absl::FormatTime(t, nyc)); // DST - - // Adjusts tm to refer to a time with a year larger than 2147483647. - tm.tm_year = 2147483647 - 1900 + 1; - tm.tm_mon = 6 - 1; - tm.tm_mday = 28; - tm.tm_hour = 1; - tm.tm_min = 2; - tm.tm_sec = 3; - tm.tm_isdst = -1; - t = FromTM(tm, absl::UTCTimeZone()); - EXPECT_EQ("2147483648-06-28T01:02:03+00:00", - absl::FormatTime(t, absl::UTCTimeZone())); - - // Adjusts tm to refer to a time with a very large month. - tm.tm_year = 2019 - 1900; - tm.tm_mon = 2147483647; - tm.tm_mday = 28; - tm.tm_hour = 1; - tm.tm_min = 2; - tm.tm_sec = 3; - tm.tm_isdst = -1; - t = FromTM(tm, absl::UTCTimeZone()); - EXPECT_EQ("178958989-08-28T01:02:03+00:00", - absl::FormatTime(t, absl::UTCTimeZone())); -} - -TEST(Time, TMRoundTrip) { - const absl::TimeZone nyc = - absl::time_internal::LoadTimeZone("America/New_York"); - - // Test round-tripping across a skipped transition - absl::Time start = absl::FromCivil(absl::CivilHour(2014, 3, 9, 0), nyc); - absl::Time end = absl::FromCivil(absl::CivilHour(2014, 3, 9, 4), nyc); - for (absl::Time t = start; t < end; t += absl::Minutes(1)) { - struct tm tm = ToTM(t, nyc); - absl::Time rt = FromTM(tm, nyc); - EXPECT_EQ(rt, t); - } - - // Test round-tripping across an ambiguous transition - start = absl::FromCivil(absl::CivilHour(2014, 11, 2, 0), nyc); - end = absl::FromCivil(absl::CivilHour(2014, 11, 2, 4), nyc); - for (absl::Time t = start; t < end; t += absl::Minutes(1)) { - struct tm tm = ToTM(t, nyc); - absl::Time rt = FromTM(tm, nyc); - EXPECT_EQ(rt, t); - } - - // Test round-tripping of unique instants crossing a day boundary - start = absl::FromCivil(absl::CivilHour(2014, 6, 27, 22), nyc); - end = absl::FromCivil(absl::CivilHour(2014, 6, 28, 4), nyc); - for (absl::Time t = start; t < end; t += absl::Minutes(1)) { - struct tm tm = ToTM(t, nyc); - absl::Time rt = FromTM(tm, nyc); - EXPECT_EQ(rt, t); - } -} - -TEST(Time, Range) { - // The API's documented range is +/- 100 billion years. - const absl::Duration range = absl::Hours(24) * 365.2425 * 100000000000; - - // Arithmetic and comparison still works at +/-range around base values. - absl::Time bases[2] = {absl::UnixEpoch(), absl::Now()}; - for (const auto base : bases) { - absl::Time bottom = base - range; - EXPECT_GT(bottom, bottom - absl::Nanoseconds(1)); - EXPECT_LT(bottom, bottom + absl::Nanoseconds(1)); - absl::Time top = base + range; - EXPECT_GT(top, top - absl::Nanoseconds(1)); - EXPECT_LT(top, top + absl::Nanoseconds(1)); - absl::Duration full_range = 2 * range; - EXPECT_EQ(full_range, top - bottom); - EXPECT_EQ(-full_range, bottom - top); - } -} - -TEST(Time, Limits) { - // It is an implementation detail that Time().rep_ == ZeroDuration(), - // and that the resolution of a Duration is 1/4 of a nanosecond. - const absl::Time zero; - const absl::Time max = - zero + absl::Seconds(std::numeric_limits<int64_t>::max()) + - absl::Nanoseconds(999999999) + absl::Nanoseconds(3) / 4; - const absl::Time min = - zero + absl::Seconds(std::numeric_limits<int64_t>::min()); - - // Some simple max/min bounds checks. - EXPECT_LT(max, absl::InfiniteFuture()); - EXPECT_GT(min, absl::InfinitePast()); - EXPECT_LT(zero, max); - EXPECT_GT(zero, min); - EXPECT_GE(absl::UnixEpoch(), min); - EXPECT_LT(absl::UnixEpoch(), max); - - // Check sign of Time differences. - EXPECT_LT(absl::ZeroDuration(), max - zero); - EXPECT_LT(absl::ZeroDuration(), - zero - absl::Nanoseconds(1) / 4 - min); // avoid zero - min - - // Arithmetic works at max - 0.25ns and min + 0.25ns. - EXPECT_GT(max, max - absl::Nanoseconds(1) / 4); - EXPECT_LT(min, min + absl::Nanoseconds(1) / 4); -} - -TEST(Time, ConversionSaturation) { - const absl::TimeZone utc = absl::UTCTimeZone(); - absl::Time t; - - const auto max_time_t = std::numeric_limits<time_t>::max(); - const auto min_time_t = std::numeric_limits<time_t>::min(); - time_t tt = max_time_t - 1; - t = absl::FromTimeT(tt); - tt = absl::ToTimeT(t); - EXPECT_EQ(max_time_t - 1, tt); - t += absl::Seconds(1); - tt = absl::ToTimeT(t); - EXPECT_EQ(max_time_t, tt); - t += absl::Seconds(1); // no effect - tt = absl::ToTimeT(t); - EXPECT_EQ(max_time_t, tt); - - tt = min_time_t + 1; - t = absl::FromTimeT(tt); - tt = absl::ToTimeT(t); - EXPECT_EQ(min_time_t + 1, tt); - t -= absl::Seconds(1); - tt = absl::ToTimeT(t); - EXPECT_EQ(min_time_t, tt); - t -= absl::Seconds(1); // no effect - tt = absl::ToTimeT(t); - EXPECT_EQ(min_time_t, tt); - - const auto max_timeval_sec = - std::numeric_limits<decltype(timeval::tv_sec)>::max(); - const auto min_timeval_sec = - std::numeric_limits<decltype(timeval::tv_sec)>::min(); - timeval tv; - tv.tv_sec = max_timeval_sec; - tv.tv_usec = 999998; - t = absl::TimeFromTimeval(tv); - tv = ToTimeval(t); - EXPECT_EQ(max_timeval_sec, tv.tv_sec); - EXPECT_EQ(999998, tv.tv_usec); - t += absl::Microseconds(1); - tv = ToTimeval(t); - EXPECT_EQ(max_timeval_sec, tv.tv_sec); - EXPECT_EQ(999999, tv.tv_usec); - t += absl::Microseconds(1); // no effect - tv = ToTimeval(t); - EXPECT_EQ(max_timeval_sec, tv.tv_sec); - EXPECT_EQ(999999, tv.tv_usec); - - tv.tv_sec = min_timeval_sec; - tv.tv_usec = 1; - t = absl::TimeFromTimeval(tv); - tv = ToTimeval(t); - EXPECT_EQ(min_timeval_sec, tv.tv_sec); - EXPECT_EQ(1, tv.tv_usec); - t -= absl::Microseconds(1); - tv = ToTimeval(t); - EXPECT_EQ(min_timeval_sec, tv.tv_sec); - EXPECT_EQ(0, tv.tv_usec); - t -= absl::Microseconds(1); // no effect - tv = ToTimeval(t); - EXPECT_EQ(min_timeval_sec, tv.tv_sec); - EXPECT_EQ(0, tv.tv_usec); - - const auto max_timespec_sec = - std::numeric_limits<decltype(timespec::tv_sec)>::max(); - const auto min_timespec_sec = - std::numeric_limits<decltype(timespec::tv_sec)>::min(); - timespec ts; - ts.tv_sec = max_timespec_sec; - ts.tv_nsec = 999999998; - t = absl::TimeFromTimespec(ts); - ts = absl::ToTimespec(t); - EXPECT_EQ(max_timespec_sec, ts.tv_sec); - EXPECT_EQ(999999998, ts.tv_nsec); - t += absl::Nanoseconds(1); - ts = absl::ToTimespec(t); - EXPECT_EQ(max_timespec_sec, ts.tv_sec); - EXPECT_EQ(999999999, ts.tv_nsec); - t += absl::Nanoseconds(1); // no effect - ts = absl::ToTimespec(t); - EXPECT_EQ(max_timespec_sec, ts.tv_sec); - EXPECT_EQ(999999999, ts.tv_nsec); - - ts.tv_sec = min_timespec_sec; - ts.tv_nsec = 1; - t = absl::TimeFromTimespec(ts); - ts = absl::ToTimespec(t); - EXPECT_EQ(min_timespec_sec, ts.tv_sec); - EXPECT_EQ(1, ts.tv_nsec); - t -= absl::Nanoseconds(1); - ts = absl::ToTimespec(t); - EXPECT_EQ(min_timespec_sec, ts.tv_sec); - EXPECT_EQ(0, ts.tv_nsec); - t -= absl::Nanoseconds(1); // no effect - ts = absl::ToTimespec(t); - EXPECT_EQ(min_timespec_sec, ts.tv_sec); - EXPECT_EQ(0, ts.tv_nsec); - - // Checks how TimeZone::At() saturates on infinities. - auto ci = utc.At(absl::InfiniteFuture()); - EXPECT_CIVIL_INFO(ci, std::numeric_limits<int64_t>::max(), 12, 31, 23, - 59, 59, 0, false); - EXPECT_EQ(absl::InfiniteDuration(), ci.subsecond); - EXPECT_EQ(absl::Weekday::thursday, absl::GetWeekday(ci.cs)); - EXPECT_EQ(365, absl::GetYearDay(ci.cs)); - EXPECT_STREQ("-00", ci.zone_abbr); // artifact of TimeZone::At() - ci = utc.At(absl::InfinitePast()); - EXPECT_CIVIL_INFO(ci, std::numeric_limits<int64_t>::min(), 1, 1, 0, 0, - 0, 0, false); - EXPECT_EQ(-absl::InfiniteDuration(), ci.subsecond); - EXPECT_EQ(absl::Weekday::sunday, absl::GetWeekday(ci.cs)); - EXPECT_EQ(1, absl::GetYearDay(ci.cs)); - EXPECT_STREQ("-00", ci.zone_abbr); // artifact of TimeZone::At() - - // Approach the maximal Time value from below. - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 15, 30, 6), utc); - EXPECT_EQ("292277026596-12-04T15:30:06+00:00", - absl::FormatTime(absl::RFC3339_full, t, utc)); - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 15, 30, 7), utc); - EXPECT_EQ("292277026596-12-04T15:30:07+00:00", - absl::FormatTime(absl::RFC3339_full, t, utc)); - EXPECT_EQ( - absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::max()), t); - - // Checks that we can also get the maximal Time value for a far-east zone. - const absl::TimeZone plus14 = absl::FixedTimeZone(14 * 60 * 60); - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 5, 5, 30, 7), plus14); - EXPECT_EQ("292277026596-12-05T05:30:07+14:00", - absl::FormatTime(absl::RFC3339_full, t, plus14)); - EXPECT_EQ( - absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::max()), t); - - // One second later should push us to infinity. - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 15, 30, 8), utc); - EXPECT_EQ("infinite-future", absl::FormatTime(absl::RFC3339_full, t, utc)); - - // Approach the minimal Time value from above. - t = absl::FromCivil(absl::CivilSecond(-292277022657, 1, 27, 8, 29, 53), utc); - EXPECT_EQ("-292277022657-01-27T08:29:53+00:00", - absl::FormatTime(absl::RFC3339_full, t, utc)); - t = absl::FromCivil(absl::CivilSecond(-292277022657, 1, 27, 8, 29, 52), utc); - EXPECT_EQ("-292277022657-01-27T08:29:52+00:00", - absl::FormatTime(absl::RFC3339_full, t, utc)); - EXPECT_EQ( - absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::min()), t); - - // Checks that we can also get the minimal Time value for a far-west zone. - const absl::TimeZone minus12 = absl::FixedTimeZone(-12 * 60 * 60); - t = absl::FromCivil(absl::CivilSecond(-292277022657, 1, 26, 20, 29, 52), - minus12); - EXPECT_EQ("-292277022657-01-26T20:29:52-12:00", - absl::FormatTime(absl::RFC3339_full, t, minus12)); - EXPECT_EQ( - absl::UnixEpoch() + absl::Seconds(std::numeric_limits<int64_t>::min()), t); - - // One second before should push us to -infinity. - t = absl::FromCivil(absl::CivilSecond(-292277022657, 1, 27, 8, 29, 51), utc); - EXPECT_EQ("infinite-past", absl::FormatTime(absl::RFC3339_full, t, utc)); -} - -// In zones with POSIX-style recurring rules we use special logic to -// handle conversions in the distant future. Here we check the limits -// of those conversions, particularly with respect to integer overflow. -TEST(Time, ExtendedConversionSaturation) { - const absl::TimeZone syd = - absl::time_internal::LoadTimeZone("Australia/Sydney"); - const absl::TimeZone nyc = - absl::time_internal::LoadTimeZone("America/New_York"); - const absl::Time max = - absl::FromUnixSeconds(std::numeric_limits<int64_t>::max()); - absl::TimeZone::CivilInfo ci; - absl::Time t; - - // The maximal time converted in each zone. - ci = syd.At(max); - EXPECT_CIVIL_INFO(ci, 292277026596, 12, 5, 2, 30, 7, 39600, true); - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 5, 2, 30, 7), syd); - EXPECT_EQ(max, t); - ci = nyc.At(max); - EXPECT_CIVIL_INFO(ci, 292277026596, 12, 4, 10, 30, 7, -18000, false); - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 10, 30, 7), nyc); - EXPECT_EQ(max, t); - - // One second later should push us to infinity. - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 5, 2, 30, 8), syd); - EXPECT_EQ(absl::InfiniteFuture(), t); - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 10, 30, 8), nyc); - EXPECT_EQ(absl::InfiniteFuture(), t); - - // And we should stick there. - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 5, 2, 30, 9), syd); - EXPECT_EQ(absl::InfiniteFuture(), t); - t = absl::FromCivil(absl::CivilSecond(292277026596, 12, 4, 10, 30, 9), nyc); - EXPECT_EQ(absl::InfiniteFuture(), t); - - // All the way up to a saturated date/time, without overflow. - t = absl::FromCivil(absl::CivilSecond::max(), syd); - EXPECT_EQ(absl::InfiniteFuture(), t); - t = absl::FromCivil(absl::CivilSecond::max(), nyc); - EXPECT_EQ(absl::InfiniteFuture(), t); -} - -TEST(Time, FromCivilAlignment) { - const absl::TimeZone utc = absl::UTCTimeZone(); - const absl::CivilSecond cs(2015, 2, 3, 4, 5, 6); - absl::Time t = absl::FromCivil(cs, utc); - EXPECT_EQ("2015-02-03T04:05:06+00:00", absl::FormatTime(t, utc)); - t = absl::FromCivil(absl::CivilMinute(cs), utc); - EXPECT_EQ("2015-02-03T04:05:00+00:00", absl::FormatTime(t, utc)); - t = absl::FromCivil(absl::CivilHour(cs), utc); - EXPECT_EQ("2015-02-03T04:00:00+00:00", absl::FormatTime(t, utc)); - t = absl::FromCivil(absl::CivilDay(cs), utc); - EXPECT_EQ("2015-02-03T00:00:00+00:00", absl::FormatTime(t, utc)); - t = absl::FromCivil(absl::CivilMonth(cs), utc); - EXPECT_EQ("2015-02-01T00:00:00+00:00", absl::FormatTime(t, utc)); - t = absl::FromCivil(absl::CivilYear(cs), utc); - EXPECT_EQ("2015-01-01T00:00:00+00:00", absl::FormatTime(t, utc)); -} - -TEST(Time, LegacyDateTime) { - const absl::TimeZone utc = absl::UTCTimeZone(); - const std::string ymdhms = "%Y-%m-%d %H:%M:%S"; - const int kMax = std::numeric_limits<int>::max(); - const int kMin = std::numeric_limits<int>::min(); - absl::Time t; - - t = absl::FromDateTime(std::numeric_limits<absl::civil_year_t>::max(), - kMax, kMax, kMax, kMax, kMax, utc); - EXPECT_EQ("infinite-future", - absl::FormatTime(ymdhms, t, utc)); // no overflow - t = absl::FromDateTime(std::numeric_limits<absl::civil_year_t>::min(), - kMin, kMin, kMin, kMin, kMin, utc); - EXPECT_EQ("infinite-past", - absl::FormatTime(ymdhms, t, utc)); // no overflow - - // Check normalization. - EXPECT_TRUE(absl::ConvertDateTime(2013, 10, 32, 8, 30, 0, utc).normalized); - t = absl::FromDateTime(2015, 1, 1, 0, 0, 60, utc); - EXPECT_EQ("2015-01-01 00:01:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, 1, 0, 60, 0, utc); - EXPECT_EQ("2015-01-01 01:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, 1, 24, 0, 0, utc); - EXPECT_EQ("2015-01-02 00:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, 32, 0, 0, 0, utc); - EXPECT_EQ("2015-02-01 00:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 13, 1, 0, 0, 0, utc); - EXPECT_EQ("2016-01-01 00:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 13, 32, 60, 60, 60, utc); - EXPECT_EQ("2016-02-03 13:01:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, 1, 0, 0, -1, utc); - EXPECT_EQ("2014-12-31 23:59:59", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, 1, 0, -1, 0, utc); - EXPECT_EQ("2014-12-31 23:59:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, 1, -1, 0, 0, utc); - EXPECT_EQ("2014-12-31 23:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, 1, -1, 0, 0, 0, utc); - EXPECT_EQ("2014-12-30 00:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, -1, 1, 0, 0, 0, utc); - EXPECT_EQ("2014-11-01 00:00:00", absl::FormatTime(ymdhms, t, utc)); - t = absl::FromDateTime(2015, -1, -1, -1, -1, -1, utc); - EXPECT_EQ("2014-10-29 22:58:59", absl::FormatTime(ymdhms, t, utc)); -} - -TEST(Time, NextTransitionUTC) { - const auto tz = absl::UTCTimeZone(); - absl::TimeZone::CivilTransition trans; - - auto t = absl::InfinitePast(); - EXPECT_FALSE(tz.NextTransition(t, &trans)); - - t = absl::InfiniteFuture(); - EXPECT_FALSE(tz.NextTransition(t, &trans)); -} - -TEST(Time, PrevTransitionUTC) { - const auto tz = absl::UTCTimeZone(); - absl::TimeZone::CivilTransition trans; - - auto t = absl::InfiniteFuture(); - EXPECT_FALSE(tz.PrevTransition(t, &trans)); - - t = absl::InfinitePast(); - EXPECT_FALSE(tz.PrevTransition(t, &trans)); -} - -TEST(Time, NextTransitionNYC) { - const auto tz = absl::time_internal::LoadTimeZone("America/New_York"); - absl::TimeZone::CivilTransition trans; - - auto t = absl::FromCivil(absl::CivilSecond(2018, 6, 30, 0, 0, 0), tz); - EXPECT_TRUE(tz.NextTransition(t, &trans)); - EXPECT_EQ(absl::CivilSecond(2018, 11, 4, 2, 0, 0), trans.from); - EXPECT_EQ(absl::CivilSecond(2018, 11, 4, 1, 0, 0), trans.to); - - t = absl::InfiniteFuture(); - EXPECT_FALSE(tz.NextTransition(t, &trans)); - - t = absl::InfinitePast(); - EXPECT_TRUE(tz.NextTransition(t, &trans)); - if (trans.from == absl::CivilSecond(1918, 03, 31, 2, 0, 0)) { - // It looks like the tzdata is only 32 bit (probably macOS), - // which bottoms out at 1901-12-13T20:45:52+00:00. - EXPECT_EQ(absl::CivilSecond(1918, 3, 31, 3, 0, 0), trans.to); - } else { - EXPECT_EQ(absl::CivilSecond(1883, 11, 18, 12, 3, 58), trans.from); - EXPECT_EQ(absl::CivilSecond(1883, 11, 18, 12, 0, 0), trans.to); - } -} - -TEST(Time, PrevTransitionNYC) { - const auto tz = absl::time_internal::LoadTimeZone("America/New_York"); - absl::TimeZone::CivilTransition trans; - - auto t = absl::FromCivil(absl::CivilSecond(2018, 6, 30, 0, 0, 0), tz); - EXPECT_TRUE(tz.PrevTransition(t, &trans)); - EXPECT_EQ(absl::CivilSecond(2018, 3, 11, 2, 0, 0), trans.from); - EXPECT_EQ(absl::CivilSecond(2018, 3, 11, 3, 0, 0), trans.to); - - t = absl::InfinitePast(); - EXPECT_FALSE(tz.PrevTransition(t, &trans)); - - t = absl::InfiniteFuture(); - EXPECT_TRUE(tz.PrevTransition(t, &trans)); - // We have a transition but we don't know which one. -} - -} // namespace diff --git a/third_party/abseil_cpp/absl/time/time_zone_test.cc b/third_party/abseil_cpp/absl/time/time_zone_test.cc deleted file mode 100644 index 229fcfccb0..0000000000 --- a/third_party/abseil_cpp/absl/time/time_zone_test.cc +++ /dev/null @@ -1,97 +0,0 @@ -// Copyright 2017 The Abseil Authors. -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// https://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -#include "absl/time/internal/cctz/include/cctz/time_zone.h" - -#include "gtest/gtest.h" -#include "absl/time/internal/test_util.h" -#include "absl/time/time.h" - -namespace cctz = absl::time_internal::cctz; - -namespace { - -TEST(TimeZone, ValueSemantics) { - absl::TimeZone tz; - absl::TimeZone tz2 = tz; // Copy-construct - EXPECT_EQ(tz, tz2); - tz2 = tz; // Copy-assign - EXPECT_EQ(tz, tz2); -} - -TEST(TimeZone, Equality) { - absl::TimeZone a, b; - EXPECT_EQ(a, b); - EXPECT_EQ(a.name(), b.name()); - - absl::TimeZone implicit_utc; - absl::TimeZone explicit_utc = absl::UTCTimeZone(); - EXPECT_EQ(implicit_utc, explicit_utc); - EXPECT_EQ(implicit_utc.name(), explicit_utc.name()); - - absl::TimeZone la = absl::time_internal::LoadTimeZone("America/Los_Angeles"); - absl::TimeZone nyc = absl::time_internal::LoadTimeZone("America/New_York"); - EXPECT_NE(la, nyc); -} - -TEST(TimeZone, CCTZConversion) { - const cctz::time_zone cz = cctz::utc_time_zone(); - const absl::TimeZone tz(cz); - EXPECT_EQ(cz, cctz::time_zone(tz)); -} - -TEST(TimeZone, DefaultTimeZones) { - absl::TimeZone tz; - EXPECT_EQ("UTC", absl::TimeZone().name()); - EXPECT_EQ("UTC", absl::UTCTimeZone().name()); -} - -TEST(TimeZone, FixedTimeZone) { - const absl::TimeZone tz = absl::FixedTimeZone(123); - const cctz::time_zone cz = cctz::fixed_time_zone(cctz::seconds(123)); - EXPECT_EQ(tz, absl::TimeZone(cz)); -} - -TEST(TimeZone, LocalTimeZone) { - const absl::TimeZone local_tz = absl::LocalTimeZone(); - absl::TimeZone tz = absl::time_internal::LoadTimeZone("localtime"); - EXPECT_EQ(tz, local_tz); -} - -TEST(TimeZone, NamedTimeZones) { - absl::TimeZone nyc = absl::time_internal::LoadTimeZone("America/New_York"); - EXPECT_EQ("America/New_York", nyc.name()); - absl::TimeZone syd = absl::time_internal::LoadTimeZone("Australia/Sydney"); - EXPECT_EQ("Australia/Sydney", syd.name()); - absl::TimeZone fixed = absl::FixedTimeZone((((3 * 60) + 25) * 60) + 45); - EXPECT_EQ("Fixed/UTC+03:25:45", fixed.name()); -} - -TEST(TimeZone, Failures) { - absl::TimeZone tz = absl::time_internal::LoadTimeZone("America/Los_Angeles"); - EXPECT_FALSE(LoadTimeZone("Invalid/TimeZone", &tz)); - EXPECT_EQ(absl::UTCTimeZone(), tz); // guaranteed fallback to UTC - - // Ensures that the load still fails on a subsequent attempt. - tz = absl::time_internal::LoadTimeZone("America/Los_Angeles"); - EXPECT_FALSE(LoadTimeZone("Invalid/TimeZone", &tz)); - EXPECT_EQ(absl::UTCTimeZone(), tz); // guaranteed fallback to UTC - - // Loading an empty string timezone should fail. - tz = absl::time_internal::LoadTimeZone("America/Los_Angeles"); - EXPECT_FALSE(LoadTimeZone("", &tz)); - EXPECT_EQ(absl::UTCTimeZone(), tz); // guaranteed fallback to UTC -} - -} // namespace |