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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chrome/browser/metrics/thread_watcher.h" | 5 #include "chrome/browser/metrics/thread_watcher.h" |
| 6 | 6 |
| 7 #include <math.h> // ceil | 7 #include <math.h> // ceil |
| 8 | 8 |
| 9 #include "base/bind.h" | 9 #include "base/bind.h" |
| 10 #include "base/compiler_specific.h" | 10 #include "base/compiler_specific.h" |
| 11 #include "base/debug/alias.h" | 11 #include "base/debug/alias.h" |
| 12 #include "base/debug/dump_without_crashing.h" |
| 12 #include "base/lazy_instance.h" | 13 #include "base/lazy_instance.h" |
| 13 #include "base/strings/string_number_conversions.h" | 14 #include "base/strings/string_number_conversions.h" |
| 14 #include "base/strings/string_split.h" | 15 #include "base/strings/string_split.h" |
| 15 #include "base/strings/string_tokenizer.h" | 16 #include "base/strings/string_tokenizer.h" |
| 16 #include "base/strings/stringprintf.h" | 17 #include "base/strings/stringprintf.h" |
| 17 #include "base/threading/thread_restrictions.h" | 18 #include "base/threading/thread_restrictions.h" |
| 18 #include "build/build_config.h" | 19 #include "build/build_config.h" |
| 19 #include "chrome/browser/metrics/metrics_service.h" | 20 #include "chrome/browser/metrics/metrics_service.h" |
| 20 #include "chrome/common/chrome_switches.h" | 21 #include "chrome/common/chrome_switches.h" |
| 21 #include "chrome/common/chrome_version_info.h" | 22 #include "chrome/common/chrome_version_info.h" |
| 22 #include "chrome/common/dump_without_crashing.h" | |
| 23 #include "chrome/common/logging_chrome.h" | 23 #include "chrome/common/logging_chrome.h" |
| 24 | 24 |
| 25 #if defined(OS_WIN) | 25 #if defined(OS_WIN) |
| 26 #include "base/win/windows_version.h" | 26 #include "base/win/windows_version.h" |
| 27 #endif | 27 #endif |
| 28 | 28 |
| 29 using content::BrowserThread; | 29 using content::BrowserThread; |
| 30 | 30 |
| 31 namespace { | 31 namespace { |
| 32 | 32 |
| 33 // The following are unique function names for forcing the crash when a thread | 33 // The following are unique function names for forcing the crash when a thread |
| 34 // is unresponsive. This makes it possible to tell from the callstack alone what | 34 // is unresponsive. This makes it possible to tell from the callstack alone what |
| 35 // thread was unresponsive. | 35 // thread was unresponsive. |
| 36 // | 36 // |
| 37 // We disable optimizations for this block of functions so the compiler doesn't | 37 // We disable optimizations for this block of functions so the compiler doesn't |
| 38 // merge them all together. | 38 // merge them all together. |
| 39 MSVC_DISABLE_OPTIMIZE() | 39 MSVC_DISABLE_OPTIMIZE() |
| 40 MSVC_PUSH_DISABLE_WARNING(4748) | 40 MSVC_PUSH_DISABLE_WARNING(4748) |
| 41 | 41 |
| 42 #ifndef NDEBUG | 42 #ifndef NDEBUG |
| 43 int* NullPointer() { | 43 int* NullPointer() { |
| 44 return reinterpret_cast<int*>(NULL); | 44 return reinterpret_cast<int*>(NULL); |
| 45 } | 45 } |
| 46 #endif | 46 #endif |
| 47 | 47 |
| 48 void NullPointerCrash(int line_number) { | 48 void NullPointerCrash(int line_number) { |
| 49 #ifndef NDEBUG | 49 #ifndef NDEBUG |
| 50 *NullPointer() = line_number; // Crash. | 50 *NullPointer() = line_number; // Crash. |
| 51 #else | 51 #else |
| 52 logging::DumpWithoutCrashing(); | 52 base::debug::DumpWithoutCrashing(); |
| 53 #endif | 53 #endif |
| 54 } | 54 } |
| 55 | 55 |
| 56 NOINLINE void ShutdownCrash() { | 56 NOINLINE void ShutdownCrash() { |
| 57 NullPointerCrash(__LINE__); | 57 NullPointerCrash(__LINE__); |
| 58 } | 58 } |
| 59 | 59 |
| 60 NOINLINE void ThreadUnresponsive_UI() { | 60 NOINLINE void ThreadUnresponsive_UI() { |
| 61 NullPointerCrash(__LINE__); | 61 NullPointerCrash(__LINE__); |
| 62 } | 62 } |
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| 854 : base::Watchdog(duration, "Startup watchdog thread", true) { | 854 : base::Watchdog(duration, "Startup watchdog thread", true) { |
| 855 } | 855 } |
| 856 | 856 |
| 857 // Alarm is called if the time expires after an Arm() without someone calling | 857 // Alarm is called if the time expires after an Arm() without someone calling |
| 858 // Disarm(). When Alarm goes off, in release mode we get the crash dump | 858 // Disarm(). When Alarm goes off, in release mode we get the crash dump |
| 859 // without crashing and in debug mode we break into the debugger. | 859 // without crashing and in debug mode we break into the debugger. |
| 860 virtual void Alarm() OVERRIDE { | 860 virtual void Alarm() OVERRIDE { |
| 861 #ifndef NDEBUG | 861 #ifndef NDEBUG |
| 862 DCHECK(false); | 862 DCHECK(false); |
| 863 #else | 863 #else |
| 864 logging::DumpWithoutCrashing(); | 864 base::debug::DumpWithoutCrashing(); |
| 865 #endif | 865 #endif |
| 866 } | 866 } |
| 867 | 867 |
| 868 DISALLOW_COPY_AND_ASSIGN(StartupWatchDogThread); | 868 DISALLOW_COPY_AND_ASSIGN(StartupWatchDogThread); |
| 869 }; | 869 }; |
| 870 | 870 |
| 871 // ShutdownWatchDogThread methods and members. | 871 // ShutdownWatchDogThread methods and members. |
| 872 // | 872 // |
| 873 // Class for detecting hangs during shutdown. | 873 // Class for detecting hangs during shutdown. |
| 874 class ShutdownWatchDogThread : public base::Watchdog { | 874 class ShutdownWatchDogThread : public base::Watchdog { |
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| 983 | 983 |
| 984 #if defined(OS_WIN) | 984 #if defined(OS_WIN) |
| 985 // On Windows XP, give twice the time for shutdown. | 985 // On Windows XP, give twice the time for shutdown. |
| 986 if (base::win::GetVersion() <= base::win::VERSION_XP) | 986 if (base::win::GetVersion() <= base::win::VERSION_XP) |
| 987 actual_duration *= 2; | 987 actual_duration *= 2; |
| 988 #endif | 988 #endif |
| 989 | 989 |
| 990 shutdown_watchdog_ = new ShutdownWatchDogThread(actual_duration); | 990 shutdown_watchdog_ = new ShutdownWatchDogThread(actual_duration); |
| 991 shutdown_watchdog_->Arm(); | 991 shutdown_watchdog_->Arm(); |
| 992 } | 992 } |
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