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1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 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 "gin/public/v8_platform.h" | 5 #include "gin/public/v8_platform.h" |
6 | 6 |
7 #include "base/bind.h" | 7 #include "base/bind.h" |
8 #include "base/location.h" | 8 #include "base/location.h" |
9 #include "base/sys_info.h" | 9 #include "base/sys_info.h" |
10 #include "base/threading/worker_pool.h" | 10 #include "base/threading/worker_pool.h" |
11 #include "base/trace_event/trace_event.h" | 11 #include "base/trace_event/trace_event.h" |
12 #include "gin/per_isolate_data.h" | 12 #include "gin/per_isolate_data.h" |
13 #include "v8/include/v8-tracing.h" | |
14 | 13 |
15 namespace gin { | 14 namespace gin { |
16 | 15 |
17 namespace { | 16 namespace { |
18 | 17 |
19 base::LazyInstance<V8Platform>::Leaky g_v8_platform = LAZY_INSTANCE_INITIALIZER; | 18 base::LazyInstance<V8Platform>::Leaky g_v8_platform = LAZY_INSTANCE_INITIALIZER; |
20 | 19 |
21 } // namespace | 20 } // namespace |
22 | 21 |
23 // static | 22 // static |
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148 memcpy(&traceEventHandle, &handle, sizeof(handle)); | 147 memcpy(&traceEventHandle, &handle, sizeof(handle)); |
149 TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(category_enabled_flag, name, | 148 TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(category_enabled_flag, name, |
150 traceEventHandle); | 149 traceEventHandle); |
151 } | 150 } |
152 | 151 |
153 namespace { | 152 namespace { |
154 | 153 |
155 class EnabledStateObserverImpl final | 154 class EnabledStateObserverImpl final |
156 : public base::trace_event::TraceLog::EnabledStateObserver { | 155 : public base::trace_event::TraceLog::EnabledStateObserver { |
157 public: | 156 public: |
158 EnabledStateObserverImpl() { | 157 EnabledStateObserverImpl() = default; |
159 tracing_category_observer_ = v8::tracing::TracingCategoryObserver::Create(); | |
160 observers_.insert(reinterpret_cast<v8::Platform::TraceStateObserver*>( | |
161 tracing_category_observer_.get())); | |
162 } | |
163 | 158 |
164 void OnTraceLogEnabled() final { | 159 void OnTraceLogEnabled() final { |
165 base::AutoLock lock(mutex_); | 160 base::AutoLock lock(mutex_); |
166 for (auto o : observers_) { | 161 for (auto o : observers_) { |
167 o->OnTraceEnabled(); | 162 o->OnTraceEnabled(); |
168 } | 163 } |
169 } | 164 } |
170 | 165 |
171 void OnTraceLogDisabled() final { | 166 void OnTraceLogDisabled() final { |
172 base::AutoLock lock(mutex_); | 167 base::AutoLock lock(mutex_); |
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190 observers_.erase(observer); | 185 observers_.erase(observer); |
191 if (observers_.empty()) { | 186 if (observers_.empty()) { |
192 base::trace_event::TraceLog::GetInstance()->RemoveEnabledStateObserver( | 187 base::trace_event::TraceLog::GetInstance()->RemoveEnabledStateObserver( |
193 this); | 188 this); |
194 } | 189 } |
195 } | 190 } |
196 | 191 |
197 private: | 192 private: |
198 base::Lock mutex_; | 193 base::Lock mutex_; |
199 std::unordered_set<v8::Platform::TraceStateObserver*> observers_; | 194 std::unordered_set<v8::Platform::TraceStateObserver*> observers_; |
200 std::unique_ptr<v8::tracing::TracingCategoryObserver> | |
201 tracing_category_observer_; | |
202 | 195 |
203 DISALLOW_COPY_AND_ASSIGN(EnabledStateObserverImpl); | 196 DISALLOW_COPY_AND_ASSIGN(EnabledStateObserverImpl); |
204 }; | 197 }; |
205 | 198 |
206 base::LazyInstance<EnabledStateObserverImpl>::Leaky g_trace_state_dispatcher = | 199 base::LazyInstance<EnabledStateObserverImpl>::Leaky g_trace_state_dispatcher = |
207 LAZY_INSTANCE_INITIALIZER; | 200 LAZY_INSTANCE_INITIALIZER; |
208 | 201 |
209 } // namespace | 202 } // namespace |
210 | 203 |
211 void V8Platform::AddTraceStateObserver( | 204 void V8Platform::AddTraceStateObserver( |
212 v8::Platform::TraceStateObserver* observer) { | 205 v8::Platform::TraceStateObserver* observer) { |
213 g_trace_state_dispatcher.Get().AddObserver(observer); | 206 g_trace_state_dispatcher.Get().AddObserver(observer); |
214 } | 207 } |
215 | 208 |
216 void V8Platform::RemoveTraceStateObserver( | 209 void V8Platform::RemoveTraceStateObserver( |
217 v8::Platform::TraceStateObserver* observer) { | 210 v8::Platform::TraceStateObserver* observer) { |
218 g_trace_state_dispatcher.Get().RemoveObserver(observer); | 211 g_trace_state_dispatcher.Get().RemoveObserver(observer); |
219 } | 212 } |
220 | 213 |
221 } // namespace gin | 214 } // namespace gin |
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