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Diffstat (limited to 'third_party/glog/src/utilities.cc')
| -rw-r--r-- | third_party/glog/src/utilities.cc | 374 |
1 files changed, 0 insertions, 374 deletions
diff --git a/third_party/glog/src/utilities.cc b/third_party/glog/src/utilities.cc deleted file mode 100644 index 9a1e35d022..0000000000 --- a/third_party/glog/src/utilities.cc +++ /dev/null @@ -1,374 +0,0 @@ -// Copyright (c) 2008, Google Inc. -// All rights reserved. -// -// Redistribution and use in source and binary forms, with or without -// modification, are permitted provided that the following conditions are -// met: -// -// * Redistributions of source code must retain the above copyright -// notice, this list of conditions and the following disclaimer. -// * Redistributions in binary form must reproduce the above -// copyright notice, this list of conditions and the following disclaimer -// in the documentation and/or other materials provided with the -// distribution. -// * Neither the name of Google Inc. nor the names of its -// contributors may be used to endorse or promote products derived from -// this software without specific prior written permission. -// -// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR -// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT -// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, -// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT -// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE -// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// -// Author: Shinichiro Hamaji - -#include "utilities.h" - -#include <stdio.h> -#include <stdlib.h> - -#include <signal.h> -#ifdef HAVE_SYS_TIME_H -# include <sys/time.h> -#endif -#include <time.h> -#if defined(HAVE_SYSCALL_H) -#include <syscall.h> // for syscall() -#elif defined(HAVE_SYS_SYSCALL_H) -#include <sys/syscall.h> // for syscall() -#endif -#ifdef HAVE_SYSLOG_H -# include <syslog.h> -#endif -#ifdef HAVE_UNISTD_H -# include <unistd.h> // For geteuid. -#endif -#ifdef HAVE_PWD_H -# include <pwd.h> -#endif - -#include "base/googleinit.h" - -using std::string; - -_START_GOOGLE_NAMESPACE_ - -static const char* g_program_invocation_short_name = NULL; - -_END_GOOGLE_NAMESPACE_ - -// The following APIs are all internal. -#ifdef HAVE_STACKTRACE - -#include "stacktrace.h" -#include "symbolize.h" -#include "base/commandlineflags.h" - -GLOG_DEFINE_bool(symbolize_stacktrace, true, - "Symbolize the stack trace in the tombstone"); - -_START_GOOGLE_NAMESPACE_ - -typedef void DebugWriter(const char*, void*); - -// The %p field width for printf() functions is two characters per byte. -// For some environments, add two extra bytes for the leading "0x". -static const int kPrintfPointerFieldWidth = 2 + 2 * sizeof(void*); - -static void DebugWriteToStderr(const char* data, void *) { - // This one is signal-safe. - if (write(STDERR_FILENO, data, strlen(data)) < 0) { - // Ignore errors. - } -} - -static void DebugWriteToString(const char* data, void *arg) { - reinterpret_cast<string*>(arg)->append(data); -} - -#ifdef HAVE_SYMBOLIZE -// Print a program counter and its symbol name. -static void DumpPCAndSymbol(DebugWriter *writerfn, void *arg, void *pc, - const char * const prefix) { - char tmp[1024]; - const char *symbol = "(unknown)"; - // Symbolizes the previous address of pc because pc may be in the - // next function. The overrun happens when the function ends with - // a call to a function annotated noreturn (e.g. CHECK). - if (Symbolize(reinterpret_cast<char *>(pc) - 1, tmp, sizeof(tmp))) { - symbol = tmp; - } - char buf[1024]; - snprintf(buf, sizeof(buf), "%s@ %*p %s\n", - prefix, kPrintfPointerFieldWidth, pc, symbol); - writerfn(buf, arg); -} -#endif - -static void DumpPC(DebugWriter *writerfn, void *arg, void *pc, - const char * const prefix) { - char buf[100]; - snprintf(buf, sizeof(buf), "%s@ %*p\n", - prefix, kPrintfPointerFieldWidth, pc); - writerfn(buf, arg); -} - -// Dump current stack trace as directed by writerfn -static void DumpStackTrace(int skip_count, DebugWriter *writerfn, void *arg) { - // Print stack trace - void* stack[32]; - int depth = GetStackTrace(stack, ARRAYSIZE(stack), skip_count+1); - for (int i = 0; i < depth; i++) { -#if defined(HAVE_SYMBOLIZE) - if (FLAGS_symbolize_stacktrace) { - DumpPCAndSymbol(writerfn, arg, stack[i], " "); - } else { - DumpPC(writerfn, arg, stack[i], " "); - } -#else - DumpPC(writerfn, arg, stack[i], " "); -#endif - } -} - -static void DumpStackTraceAndExit() { - DumpStackTrace(1, DebugWriteToStderr, NULL); - - // TODO(hamaji): Use signal instead of sigaction? - if (IsFailureSignalHandlerInstalled()) { - // Set the default signal handler for SIGABRT, to avoid invoking our - // own signal handler installed by InstallFailureSignalHandler(). -#ifdef HAVE_SIGACTION - struct sigaction sig_action; - memset(&sig_action, 0, sizeof(sig_action)); - sigemptyset(&sig_action.sa_mask); - sig_action.sa_handler = SIG_DFL; - sigaction(SIGABRT, &sig_action, NULL); -#elif defined(OS_WINDOWS) - signal(SIGABRT, SIG_DFL); -#endif // HAVE_SIGACTION - } - - abort(); -} - -_END_GOOGLE_NAMESPACE_ - -#endif // HAVE_STACKTRACE - -_START_GOOGLE_NAMESPACE_ - -namespace glog_internal_namespace_ { - -const char* ProgramInvocationShortName() { - if (g_program_invocation_short_name != NULL) { - return g_program_invocation_short_name; - } else { - // TODO(hamaji): Use /proc/self/cmdline and so? - return "UNKNOWN"; - } -} - -bool IsGoogleLoggingInitialized() { - return g_program_invocation_short_name != NULL; -} - -#ifdef OS_WINDOWS -struct timeval { - long tv_sec, tv_usec; -}; - -// Based on: http://www.google.com/codesearch/p?hl=en#dR3YEbitojA/os_win32.c&q=GetSystemTimeAsFileTime%20license:bsd -// See COPYING for copyright information. -static int gettimeofday(struct timeval *tv, void* tz) { -#define EPOCHFILETIME (116444736000000000ULL) - FILETIME ft; - LARGE_INTEGER li; - uint64 tt; - - GetSystemTimeAsFileTime(&ft); - li.LowPart = ft.dwLowDateTime; - li.HighPart = ft.dwHighDateTime; - tt = (li.QuadPart - EPOCHFILETIME) / 10; - tv->tv_sec = tt / 1000000; - tv->tv_usec = tt % 1000000; - - return 0; -} -#endif - -int64 CycleClock_Now() { - // TODO(hamaji): temporary impementation - it might be too slow. - struct timeval tv; - gettimeofday(&tv, NULL); - return static_cast<int64>(tv.tv_sec) * 1000000 + tv.tv_usec; -} - -int64 UsecToCycles(int64 usec) { - return usec; -} - -WallTime WallTime_Now() { - // Now, cycle clock is retuning microseconds since the epoch. - return CycleClock_Now() * 0.000001; -} - -static int32 g_main_thread_pid = getpid(); -int32 GetMainThreadPid() { - return g_main_thread_pid; -} - -bool PidHasChanged() { - int32 pid = getpid(); - if (g_main_thread_pid == pid) { - return false; - } - g_main_thread_pid = pid; - return true; -} - -pid_t GetTID() { - // On Linux and MacOSX, we try to use gettid(). -#if defined OS_LINUX || defined OS_MACOSX -#ifndef __NR_gettid -#ifdef OS_MACOSX -#define __NR_gettid SYS_gettid -#elif ! defined __i386__ -#error "Must define __NR_gettid for non-x86 platforms" -#else -#define __NR_gettid 224 -#endif -#endif - static bool lacks_gettid = false; - if (!lacks_gettid) { - pid_t tid = syscall(__NR_gettid); - if (tid != -1) { - return tid; - } - // Technically, this variable has to be volatile, but there is a small - // performance penalty in accessing volatile variables and there should - // not be any serious adverse effect if a thread does not immediately see - // the value change to "true". - lacks_gettid = true; - } -#endif // OS_LINUX || OS_MACOSX - - // If gettid() could not be used, we use one of the following. -#if defined OS_LINUX - return getpid(); // Linux: getpid returns thread ID when gettid is absent -#elif defined OS_WINDOWS && !defined OS_CYGWIN - return GetCurrentThreadId(); -#elif defined(HAVE_PTHREAD) - // If none of the techniques above worked, we use pthread_self(). - return (pid_t)(uintptr_t)pthread_self(); -#else - return -1; -#endif -} - -const char* const_basename(const char* filepath) { - const char* base = strrchr(filepath, '/'); -#ifdef OS_WINDOWS // Look for either path separator in Windows - if (!base) - base = strrchr(filepath, '\\'); -#endif - return base ? (base+1) : filepath; -} - -static string g_my_user_name; -const string& MyUserName() { - return g_my_user_name; -} -static void MyUserNameInitializer() { - // TODO(hamaji): Probably this is not portable. -#if defined(OS_WINDOWS) - const char* user = getenv("USERNAME"); -#else - const char* user = getenv("USER"); -#endif - if (user != NULL) { - g_my_user_name = user; - } else { -#if defined(HAVE_PWD_H) && defined(HAVE_UNISTD_H) - struct passwd pwd; - struct passwd* result = NULL; - char buffer[1024] = {'\0'}; - uid_t uid = geteuid(); - int pwuid_res = getpwuid_r(uid, &pwd, buffer, sizeof(buffer), &result); - if (pwuid_res == 0 && result) { - g_my_user_name = pwd.pw_name; - } else { - snprintf(buffer, sizeof(buffer), "uid%d", uid); - g_my_user_name = buffer; - } -#endif - if (g_my_user_name.empty()) { - g_my_user_name = "invalid-user"; - } - } - -} -REGISTER_MODULE_INITIALIZER(utilities, MyUserNameInitializer()); - -#ifdef HAVE_STACKTRACE -void DumpStackTraceToString(string* stacktrace) { - DumpStackTrace(1, DebugWriteToString, stacktrace); -} -#endif - -// We use an atomic operation to prevent problems with calling CrashReason -// from inside the Mutex implementation (potentially through RAW_CHECK). -static const CrashReason* g_reason = 0; - -void SetCrashReason(const CrashReason* r) { - sync_val_compare_and_swap(&g_reason, - reinterpret_cast<const CrashReason*>(0), - r); -} - -void InitGoogleLoggingUtilities(const char* argv0) { - CHECK(!IsGoogleLoggingInitialized()) - << "You called InitGoogleLogging() twice!"; - const char* slash = strrchr(argv0, '/'); -#ifdef OS_WINDOWS - if (!slash) slash = strrchr(argv0, '\\'); -#endif - g_program_invocation_short_name = slash ? slash + 1 : argv0; - -#ifdef HAVE_STACKTRACE - InstallFailureFunction(&DumpStackTraceAndExit); -#endif -} - -void ShutdownGoogleLoggingUtilities() { - CHECK(IsGoogleLoggingInitialized()) - << "You called ShutdownGoogleLogging() without calling InitGoogleLogging() first!"; - g_program_invocation_short_name = NULL; -#ifdef HAVE_SYSLOG_H - closelog(); -#endif -} - -} // namespace glog_internal_namespace_ - -_END_GOOGLE_NAMESPACE_ - -// Make an implementation of stacktrace compiled. -#ifdef STACKTRACE_H -# include STACKTRACE_H -# if 0 -// For include scanners which can't handle macro expansions. -# include "stacktrace_libunwind-inl.h" -# include "stacktrace_x86-inl.h" -# include "stacktrace_x86_64-inl.h" -# include "stacktrace_powerpc-inl.h" -# include "stacktrace_generic-inl.h" -# endif -#endif |