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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 "base/trace_event/trace_event_memory.h" | 5 #include "base/trace_event/trace_event_memory.h" |
6 | 6 |
7 #include "base/debug/leak_annotations.h" | 7 #include "base/debug/leak_annotations.h" |
8 #include "base/lazy_instance.h" | 8 #include "base/lazy_instance.h" |
9 #include "base/location.h" | |
10 #include "base/logging.h" | 9 #include "base/logging.h" |
11 #include "base/memory/scoped_ptr.h" | 10 #include "base/memory/scoped_ptr.h" |
12 #include "base/single_thread_task_runner.h" | 11 #include "base/message_loop/message_loop.h" |
13 #include "base/strings/string_number_conversions.h" | 12 #include "base/strings/string_number_conversions.h" |
14 #include "base/strings/string_util.h" | 13 #include "base/strings/string_util.h" |
15 #include "base/threading/thread_local_storage.h" | 14 #include "base/threading/thread_local_storage.h" |
16 #include "base/trace_event/trace_event.h" | 15 #include "base/trace_event/trace_event.h" |
17 | 16 |
18 namespace base { | 17 namespace base { |
19 namespace trace_event { | 18 namespace trace_event { |
20 | 19 |
21 namespace { | 20 namespace { |
22 | 21 |
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138 // Each item in the trace event stack contains both name and category so tell | 137 // Each item in the trace event stack contains both name and category so tell |
139 // tcmalloc that we have returned |count| * 2 stack frames. | 138 // tcmalloc that we have returned |count| * 2 stack frames. |
140 return static_cast<int>(count * 2); | 139 return static_cast<int>(count * 2); |
141 } | 140 } |
142 | 141 |
143 } // namespace | 142 } // namespace |
144 | 143 |
145 ////////////////////////////////////////////////////////////////////////////// | 144 ////////////////////////////////////////////////////////////////////////////// |
146 | 145 |
147 TraceMemoryController::TraceMemoryController( | 146 TraceMemoryController::TraceMemoryController( |
148 scoped_refptr<SingleThreadTaskRunner> task_runner, | 147 scoped_refptr<MessageLoopProxy> message_loop_proxy, |
149 HeapProfilerStartFunction heap_profiler_start_function, | 148 HeapProfilerStartFunction heap_profiler_start_function, |
150 HeapProfilerStopFunction heap_profiler_stop_function, | 149 HeapProfilerStopFunction heap_profiler_stop_function, |
151 GetHeapProfileFunction get_heap_profile_function) | 150 GetHeapProfileFunction get_heap_profile_function) |
152 : task_runner_(task_runner.Pass()), | 151 : message_loop_proxy_(message_loop_proxy), |
153 heap_profiler_start_function_(heap_profiler_start_function), | 152 heap_profiler_start_function_(heap_profiler_start_function), |
154 heap_profiler_stop_function_(heap_profiler_stop_function), | 153 heap_profiler_stop_function_(heap_profiler_stop_function), |
155 get_heap_profile_function_(get_heap_profile_function), | 154 get_heap_profile_function_(get_heap_profile_function), |
156 weak_factory_(this) { | 155 weak_factory_(this) { |
157 // Force the "memory" category to show up in the trace viewer. | 156 // Force the "memory" category to show up in the trace viewer. |
158 TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("memory"), "init"); | 157 TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("memory"), "init"); |
159 // Watch for the tracing system being enabled. | 158 // Watch for the tracing system being enabled. |
160 TraceLog::GetInstance()->AddEnabledStateObserver(this); | 159 TraceLog::GetInstance()->AddEnabledStateObserver(this); |
161 } | 160 } |
162 | 161 |
163 TraceMemoryController::~TraceMemoryController() { | 162 TraceMemoryController::~TraceMemoryController() { |
164 if (dump_timer_.IsRunning()) | 163 if (dump_timer_.IsRunning()) |
165 StopProfiling(); | 164 StopProfiling(); |
166 TraceLog::GetInstance()->RemoveEnabledStateObserver(this); | 165 TraceLog::GetInstance()->RemoveEnabledStateObserver(this); |
167 } | 166 } |
168 | 167 |
169 // base::trace_event::TraceLog::EnabledStateChangedObserver overrides: | 168 // base::trace_event::TraceLog::EnabledStateChangedObserver overrides: |
170 void TraceMemoryController::OnTraceLogEnabled() { | 169 void TraceMemoryController::OnTraceLogEnabled() { |
171 // Check to see if tracing is enabled for the memory category. | 170 // Check to see if tracing is enabled for the memory category. |
172 bool enabled; | 171 bool enabled; |
173 TRACE_EVENT_CATEGORY_GROUP_ENABLED(TRACE_DISABLED_BY_DEFAULT("memory"), | 172 TRACE_EVENT_CATEGORY_GROUP_ENABLED(TRACE_DISABLED_BY_DEFAULT("memory"), |
174 &enabled); | 173 &enabled); |
175 if (!enabled) | 174 if (!enabled) |
176 return; | 175 return; |
177 DVLOG(1) << "OnTraceLogEnabled"; | 176 DVLOG(1) << "OnTraceLogEnabled"; |
178 task_runner_->PostTask(FROM_HERE, | 177 message_loop_proxy_->PostTask( |
179 base::Bind(&TraceMemoryController::StartProfiling, | 178 FROM_HERE, |
180 weak_factory_.GetWeakPtr())); | 179 base::Bind(&TraceMemoryController::StartProfiling, |
| 180 weak_factory_.GetWeakPtr())); |
181 } | 181 } |
182 | 182 |
183 void TraceMemoryController::OnTraceLogDisabled() { | 183 void TraceMemoryController::OnTraceLogDisabled() { |
184 // The memory category is always disabled before OnTraceLogDisabled() is | 184 // The memory category is always disabled before OnTraceLogDisabled() is |
185 // called, so we cannot tell if it was enabled before. Always try to turn | 185 // called, so we cannot tell if it was enabled before. Always try to turn |
186 // off profiling. | 186 // off profiling. |
187 DVLOG(1) << "OnTraceLogDisabled"; | 187 DVLOG(1) << "OnTraceLogDisabled"; |
188 task_runner_->PostTask(FROM_HERE, | 188 message_loop_proxy_->PostTask( |
189 base::Bind(&TraceMemoryController::StopProfiling, | 189 FROM_HERE, |
190 weak_factory_.GetWeakPtr())); | 190 base::Bind(&TraceMemoryController::StopProfiling, |
| 191 weak_factory_.GetWeakPtr())); |
191 } | 192 } |
192 | 193 |
193 void TraceMemoryController::StartProfiling() { | 194 void TraceMemoryController::StartProfiling() { |
194 // Watch for the tracing framework sending enabling more than once. | 195 // Watch for the tracing framework sending enabling more than once. |
195 if (dump_timer_.IsRunning()) | 196 if (dump_timer_.IsRunning()) |
196 return; | 197 return; |
197 DVLOG(1) << "Starting trace memory"; | 198 DVLOG(1) << "Starting trace memory"; |
198 if (!InitThreadLocalStorage()) | 199 if (!InitThreadLocalStorage()) |
199 return; | 200 return; |
200 ScopedTraceMemory::set_enabled(true); | 201 ScopedTraceMemory::set_enabled(true); |
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430 if (!base::HexStringToUInt64(hex_address, &address)) | 431 if (!base::HexStringToUInt64(hex_address, &address)) |
431 return "error"; | 432 return "error"; |
432 if (!address) | 433 if (!address) |
433 return "null"; | 434 return "null"; |
434 // Note that this cast handles 64-bit to 32-bit conversion if necessary. | 435 // Note that this cast handles 64-bit to 32-bit conversion if necessary. |
435 return reinterpret_cast<const char*>(address); | 436 return reinterpret_cast<const char*>(address); |
436 } | 437 } |
437 | 438 |
438 } // namespace trace_event | 439 } // namespace trace_event |
439 } // namespace base | 440 } // namespace base |
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