+// 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 <sys/time.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
#include "base/googleinit.h"
-#include "stacktrace.h"
-#include "symbolize.h"
using std::string;
static const char* g_program_invocation_short_name = NULL;
static pthread_t g_main_thread_id;
+_END_GOOGLE_NAMESPACE_
+
// The following APIs are all internal.
#ifdef HAVE_STACKTRACE
#include "symbolize.h"
#include "base/commandlineflags.h"
-DEFINE_bool(symbolize_stacktrace, true,
- "Symbolize the stack trace in the tombstone");
+GLOG_DEFINE_bool(symbolize_stacktrace, true,
+ "Symbolize the stack trace in the tombstone");
+
+_START_GOOGLE_NAMESPACE_
typedef void DebugWriter(const char*, void*);
// 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 *unused) {
+static void DebugWriteToStderr(const char* data, void *) {
// This one is signal-safe.
- write(STDERR_FILENO, data, strlen(data));
+ if (write(STDERR_FILENO, data, strlen(data)) < 0) {
+ // Ignore errors.
+ }
+}
+
+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) {
prefix, kPrintfPointerFieldWidth, pc, symbol);
writerfn(buf, arg);
}
-
-// Print a program counter and the corresponding stack frame size.
-static void DumpPCAndFrameSize(DebugWriter *writerfn, void *arg, void *pc,
- int framesize, const char * const prefix) {
- char buf[100];
- if (framesize <= 0) {
- snprintf(buf, sizeof(buf), "%s@ %*p (unknown)\n",
- prefix, kPrintfPointerFieldWidth, pc);
- } else {
- snprintf(buf, sizeof(buf), "%s@ %*p %9d\n",
- prefix, kPrintfPointerFieldWidth, pc, framesize);
- }
- writerfn(buf, arg);
-}
+#endif
static void DumpPC(DebugWriter *writerfn, void *arg, void *pc,
const char * const prefix) {
static void DumpStackTrace(int skip_count, DebugWriter *writerfn, void *arg) {
// Print stack trace
void* stack[32];
- int depth = GetStackTrace(stack, sizeof(stack)/sizeof(*stack), skip_count+1);
+ int depth = GetStackTrace(stack, ARRAYSIZE(stack), skip_count+1);
for (int i = 0; i < depth; i++) {
#if defined(HAVE_SYMBOLIZE)
if (FLAGS_symbolize_stacktrace) {
static void DumpStackTraceAndExit() {
DumpStackTrace(1, DebugWriteToStderr, NULL);
+
+ // TOOD(hamaji): Use signal instead of sigaction?
+#ifdef HAVE_SIGACTION
+ if (IsFailureSignalHandlerInstalled()) {
+ // Set the default signal handler for SIGABRT, to avoid invoking our
+ // own signal handler installed by InstallFailureSignalHandler().
+ 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);
+ }
+#endif // HAVE_SIGACTION
+
abort();
}
-#endif
+
+_END_GOOGLE_NAMESPACE_
+
+#endif // HAVE_STACKTRACE
+
+_START_GOOGLE_NAMESPACE_
namespace glog_internal_namespace_ {
}
}
+#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;
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();
+#else
+ // If none of the techniques above worked, we use pthread_self().
+ return (pid_t)(uintptr_t)pthread_self();
+#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 {
}
REGISTER_MODULE_INITIALIZER(utilities, MyUserNameInitializer());
-} // namespace glog_internal_namespace_
+#ifdef HAVE_STACKTRACE
+void DumpStackTraceToString(string* stacktrace) {
+ DumpStackTrace(1, DebugWriteToString, stacktrace);
+}
+#endif
-void InitGoogleLogging(const char* argv0) {
+// 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
}
+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
+#endif
projects / platform / upstream / glog.git / blobdiff