about summary refs log tree commit diff
path: root/third_party/abseil_cpp/absl/base/internal/raw_logging.h
diff options
context:
space:
mode:
Diffstat (limited to 'third_party/abseil_cpp/absl/base/internal/raw_logging.h')
-rw-r--r--third_party/abseil_cpp/absl/base/internal/raw_logging.h183
1 files changed, 0 insertions, 183 deletions
diff --git a/third_party/abseil_cpp/absl/base/internal/raw_logging.h b/third_party/abseil_cpp/absl/base/internal/raw_logging.h
deleted file mode 100644
index 418d6c856f..0000000000
--- a/third_party/abseil_cpp/absl/base/internal/raw_logging.h
+++ /dev/null
@@ -1,183 +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.
-//
-// Thread-safe logging routines that do not allocate any memory or
-// acquire any locks, and can therefore be used by low-level memory
-// allocation, synchronization, and signal-handling code.
-
-#ifndef ABSL_BASE_INTERNAL_RAW_LOGGING_H_
-#define ABSL_BASE_INTERNAL_RAW_LOGGING_H_
-
-#include <string>
-
-#include "absl/base/attributes.h"
-#include "absl/base/config.h"
-#include "absl/base/internal/atomic_hook.h"
-#include "absl/base/log_severity.h"
-#include "absl/base/macros.h"
-#include "absl/base/optimization.h"
-#include "absl/base/port.h"
-
-// This is similar to LOG(severity) << format..., but
-// * it is to be used ONLY by low-level modules that can't use normal LOG()
-// * it is designed to be a low-level logger that does not allocate any
-//   memory and does not need any locks, hence:
-// * it logs straight and ONLY to STDERR w/o buffering
-// * it uses an explicit printf-format and arguments list
-// * it will silently chop off really long message strings
-// Usage example:
-//   ABSL_RAW_LOG(ERROR, "Failed foo with %i: %s", status, error);
-// This will print an almost standard log line like this to stderr only:
-//   E0821 211317 file.cc:123] RAW: Failed foo with 22: bad_file
-
-#define ABSL_RAW_LOG(severity, ...)                                            \
-  do {                                                                         \
-    constexpr const char* absl_raw_logging_internal_basename =                 \
-        ::absl::raw_logging_internal::Basename(__FILE__,                       \
-                                               sizeof(__FILE__) - 1);          \
-    ::absl::raw_logging_internal::RawLog(ABSL_RAW_LOGGING_INTERNAL_##severity, \
-                                         absl_raw_logging_internal_basename,   \
-                                         __LINE__, __VA_ARGS__);               \
-  } while (0)
-
-// Similar to CHECK(condition) << message, but for low-level modules:
-// we use only ABSL_RAW_LOG that does not allocate memory.
-// We do not want to provide args list here to encourage this usage:
-//   if (!cond)  ABSL_RAW_LOG(FATAL, "foo ...", hard_to_compute_args);
-// so that the args are not computed when not needed.
-#define ABSL_RAW_CHECK(condition, message)                             \
-  do {                                                                 \
-    if (ABSL_PREDICT_FALSE(!(condition))) {                            \
-      ABSL_RAW_LOG(FATAL, "Check %s failed: %s", #condition, message); \
-    }                                                                  \
-  } while (0)
-
-// ABSL_INTERNAL_LOG and ABSL_INTERNAL_CHECK work like the RAW variants above,
-// except that if the richer log library is linked into the binary, we dispatch
-// to that instead.  This is potentially useful for internal logging and
-// assertions, where we are using RAW_LOG neither for its async-signal-safety
-// nor for its non-allocating nature, but rather because raw logging has very
-// few other dependencies.
-//
-// The API is a subset of the above: each macro only takes two arguments.  Use
-// StrCat if you need to build a richer message.
-#define ABSL_INTERNAL_LOG(severity, message)                                \
-  do {                                                                      \
-    ::absl::raw_logging_internal::internal_log_function(                    \
-        ABSL_RAW_LOGGING_INTERNAL_##severity, __FILE__, __LINE__, message); \
-  } while (0)
-
-#define ABSL_INTERNAL_CHECK(condition, message)                    \
-  do {                                                             \
-    if (ABSL_PREDICT_FALSE(!(condition))) {                        \
-      std::string death_message = "Check " #condition " failed: "; \
-      death_message += std::string(message);                       \
-      ABSL_INTERNAL_LOG(FATAL, death_message);                     \
-    }                                                              \
-  } while (0)
-
-#define ABSL_RAW_LOGGING_INTERNAL_INFO ::absl::LogSeverity::kInfo
-#define ABSL_RAW_LOGGING_INTERNAL_WARNING ::absl::LogSeverity::kWarning
-#define ABSL_RAW_LOGGING_INTERNAL_ERROR ::absl::LogSeverity::kError
-#define ABSL_RAW_LOGGING_INTERNAL_FATAL ::absl::LogSeverity::kFatal
-#define ABSL_RAW_LOGGING_INTERNAL_LEVEL(severity) \
-  ::absl::NormalizeLogSeverity(severity)
-
-namespace absl {
-ABSL_NAMESPACE_BEGIN
-namespace raw_logging_internal {
-
-// Helper function to implement ABSL_RAW_LOG
-// Logs format... at "severity" level, reporting it
-// as called from file:line.
-// This does not allocate memory or acquire locks.
-void RawLog(absl::LogSeverity severity, const char* file, int line,
-            const char* format, ...) ABSL_PRINTF_ATTRIBUTE(4, 5);
-
-// Writes the provided buffer directly to stderr, in a safe, low-level manner.
-//
-// In POSIX this means calling write(), which is async-signal safe and does
-// not malloc.  If the platform supports the SYS_write syscall, we invoke that
-// directly to side-step any libc interception.
-void SafeWriteToStderr(const char *s, size_t len);
-
-// compile-time function to get the "base" filename, that is, the part of
-// a filename after the last "/" or "\" path separator.  The search starts at
-// the end of the string; the second parameter is the length of the string.
-constexpr const char* Basename(const char* fname, int offset) {
-  return offset == 0 || fname[offset - 1] == '/' || fname[offset - 1] == '\\'
-             ? fname + offset
-             : Basename(fname, offset - 1);
-}
-
-// For testing only.
-// Returns true if raw logging is fully supported. When it is not
-// fully supported, no messages will be emitted, but a log at FATAL
-// severity will cause an abort.
-//
-// TODO(gfalcon): Come up with a better name for this method.
-bool RawLoggingFullySupported();
-
-// Function type for a raw_logging customization hook for suppressing messages
-// by severity, and for writing custom prefixes on non-suppressed messages.
-//
-// The installed hook is called for every raw log invocation.  The message will
-// be logged to stderr only if the hook returns true.  FATAL errors will cause
-// the process to abort, even if writing to stderr is suppressed.  The hook is
-// also provided with an output buffer, where it can write a custom log message
-// prefix.
-//
-// The raw_logging system does not allocate memory or grab locks.  User-provided
-// hooks must avoid these operations, and must not throw exceptions.
-//
-// 'severity' is the severity level of the message being written.
-// 'file' and 'line' are the file and line number where the ABSL_RAW_LOG macro
-// was located.
-// 'buffer' and 'buf_size' are pointers to the buffer and buffer size.  If the
-// hook writes a prefix, it must increment *buffer and decrement *buf_size
-// accordingly.
-using LogPrefixHook = bool (*)(absl::LogSeverity severity, const char* file,
-                               int line, char** buffer, int* buf_size);
-
-// Function type for a raw_logging customization hook called to abort a process
-// when a FATAL message is logged.  If the provided AbortHook() returns, the
-// logging system will call abort().
-//
-// 'file' and 'line' are the file and line number where the ABSL_RAW_LOG macro
-// was located.
-// The NUL-terminated logged message lives in the buffer between 'buf_start'
-// and 'buf_end'.  'prefix_end' points to the first non-prefix character of the
-// buffer (as written by the LogPrefixHook.)
-using AbortHook = void (*)(const char* file, int line, const char* buf_start,
-                           const char* prefix_end, const char* buf_end);
-
-// Internal logging function for ABSL_INTERNAL_LOG to dispatch to.
-//
-// TODO(gfalcon): When string_view no longer depends on base, change this
-// interface to take its message as a string_view instead.
-using InternalLogFunction = void (*)(absl::LogSeverity severity,
-                                     const char* file, int line,
-                                     const std::string& message);
-
-ABSL_DLL ABSL_INTERNAL_ATOMIC_HOOK_ATTRIBUTES extern base_internal::AtomicHook<
-    InternalLogFunction>
-    internal_log_function;
-
-void RegisterInternalLogFunction(InternalLogFunction func);
-
-}  // namespace raw_logging_internal
-ABSL_NAMESPACE_END
-}  // namespace absl
-
-#endif  // ABSL_BASE_INTERNAL_RAW_LOGGING_H_