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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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/common/profiling.h" | 5 #include "chrome/common/profiling.h" |
| 6 | 6 |
| 7 #include "base/at_exit.h" | 7 #include "base/at_exit.h" |
| 8 #include "base/bind.h" | 8 #include "base/bind.h" |
| 9 #include "base/command_line.h" | 9 #include "base/command_line.h" |
| 10 #include "base/debug/profiler.h" | 10 #include "base/debug/profiler.h" |
| 11 #include "base/lazy_instance.h" | 11 #include "base/lazy_instance.h" |
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| 34 return profile_name; | 34 return profile_name; |
| 35 } | 35 } |
| 36 | 36 |
| 37 void FlushProfilingData(base::Thread* thread) { | 37 void FlushProfilingData(base::Thread* thread) { |
| 38 static const int kProfilingFlushSeconds = 10; | 38 static const int kProfilingFlushSeconds = 10; |
| 39 | 39 |
| 40 if (!Profiling::BeingProfiled()) | 40 if (!Profiling::BeingProfiled()) |
| 41 return; | 41 return; |
| 42 | 42 |
| 43 base::debug::FlushProfiling(); | 43 base::debug::FlushProfiling(); |
| 44 static int flush_seconds; | 44 static int flush_seconds = 0; |
| 45 if (!flush_seconds) { | 45 if (!flush_seconds) { |
| 46 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); | 46 const CommandLine& command_line = *CommandLine::ForCurrentProcess(); |
| 47 std::string profiling_flush = | 47 std::string profiling_flush = |
| 48 command_line.GetSwitchValueASCII(switches::kProfilingFlush); | 48 command_line.GetSwitchValueASCII(switches::kProfilingFlush); |
| 49 if (!profiling_flush.empty()) { | 49 if (!profiling_flush.empty()) { |
| 50 flush_seconds = atoi(profiling_flush.c_str()); | 50 flush_seconds = atoi(profiling_flush.c_str()); |
| 51 DCHECK(flush_seconds > 0); | 51 DCHECK(flush_seconds > 0); |
| 52 } else { | 52 } else { |
| 53 flush_seconds = kProfilingFlushSeconds; | 53 flush_seconds = kProfilingFlushSeconds; |
| 54 } | 54 } |
| 55 } | 55 } |
| 56 thread->message_loop()->PostDelayedTask( | 56 thread->message_loop()->PostDelayedTask( |
| 57 FROM_HERE, | 57 FROM_HERE, base::Bind(&FlushProfilingData, thread), flush_seconds * 1000); |
| 58 base::Bind(&FlushProfilingData, thread), | |
| 59 base::TimeDelta::FromSeconds(flush_seconds)); | |
| 60 } | 58 } |
| 61 | 59 |
| 62 class ProfilingThreadControl { | 60 class ProfilingThreadControl { |
| 63 public: | 61 public: |
| 64 ProfilingThreadControl() : thread_(NULL) {} | 62 ProfilingThreadControl() : thread_(NULL) {} |
| 65 | 63 |
| 66 void Start() { | 64 void Start() { |
| 67 base::AutoLock locked(lock_); | 65 base::AutoLock locked(lock_); |
| 68 | 66 |
| 69 if (thread_ && thread_->IsRunning()) | 67 if (thread_ && thread_->IsRunning()) |
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| 134 return base::debug::BeingProfiled(); | 132 return base::debug::BeingProfiled(); |
| 135 } | 133 } |
| 136 | 134 |
| 137 // static | 135 // static |
| 138 void Profiling::Toggle() { | 136 void Profiling::Toggle() { |
| 139 if (BeingProfiled()) | 137 if (BeingProfiled()) |
| 140 Stop(); | 138 Stop(); |
| 141 else | 139 else |
| 142 Start(); | 140 Start(); |
| 143 } | 141 } |
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