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1 /* | 1 /* |
2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. | 2 * Copyright (C) 2008 Apple Inc. All Rights Reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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40 #include "wtf/PassRefPtr.h" | 40 #include "wtf/PassRefPtr.h" |
41 #include "wtf/RefCounted.h" | 41 #include "wtf/RefCounted.h" |
42 #include <v8.h> | 42 #include <v8.h> |
43 | 43 |
44 namespace blink { | 44 namespace blink { |
45 | 45 |
46 class WebWaitableEvent; | 46 class WebWaitableEvent; |
47 class WorkerGlobalScope; | 47 class WorkerGlobalScope; |
48 class WorkerInspectorController; | 48 class WorkerInspectorController; |
49 class WorkerReportingProxy; | 49 class WorkerReportingProxy; |
50 class WorkerSharedTimer; | |
51 class WorkerThreadShutdownFinishTask; | 50 class WorkerThreadShutdownFinishTask; |
52 class WorkerThreadStartupData; | 51 class WorkerThreadStartupData; |
53 class WorkerThreadTask; | 52 class WorkerThreadTask; |
54 | 53 |
55 enum WorkerThreadStartMode { | 54 enum WorkerThreadStartMode { |
56 DontPauseWorkerGlobalScopeOnStart, | 55 DontPauseWorkerGlobalScopeOnStart, |
57 PauseWorkerGlobalScopeOnStart | 56 PauseWorkerGlobalScopeOnStart |
58 }; | 57 }; |
59 | 58 |
60 class CORE_EXPORT WorkerThread : public RefCounted<WorkerThread> { | 59 class CORE_EXPORT WorkerThread : public RefCounted<WorkerThread> { |
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115 // Factory method for creating a new worker context for the thread. | 114 // Factory method for creating a new worker context for the thread. |
116 virtual PassRefPtrWillBeRawPtr<WorkerGlobalScope> createWorkerGlobalScope(Pa ssOwnPtr<WorkerThreadStartupData>) = 0; | 115 virtual PassRefPtrWillBeRawPtr<WorkerGlobalScope> createWorkerGlobalScope(Pa ssOwnPtr<WorkerThreadStartupData>) = 0; |
117 | 116 |
118 virtual void postInitialize() { } | 117 virtual void postInitialize() { } |
119 | 118 |
120 virtual v8::Isolate* initializeIsolate(); | 119 virtual v8::Isolate* initializeIsolate(); |
121 virtual void willDestroyIsolate(); | 120 virtual void willDestroyIsolate(); |
122 virtual void destroyIsolate(); | 121 virtual void destroyIsolate(); |
123 virtual void terminateV8Execution(); | 122 virtual void terminateV8Execution(); |
124 | 123 |
124 // This is protected virtual for testing. | |
125 virtual bool doIdleGc(double deadlineSeconds); | |
126 | |
127 WebThreadSupportingGC* threadForTesting() const | |
128 { | |
129 return m_thread.get(); | |
130 } | |
131 | |
132 void setMinQuietPeriodBeforeDoingIdleGcForTesting(long long minQuietPeriodBe foreDoingIdleGc) | |
Sami
2015/04/09 10:52:29
For better or worse, "double seconds" is the prefe
alex clarke (OOO till 29th)
2015/04/10 15:29:38
Acknowledged.
| |
133 { | |
134 m_minQuietPeriodMsBeforeDoingIdleGc = minQuietPeriodBeforeDoingIdleGc; | |
135 } | |
136 | |
125 private: | 137 private: |
126 friend class WorkerSharedTimer; | 138 friend class WorkerThreadIdleTask; |
127 friend class WorkerThreadShutdownFinishTask; | 139 friend class WorkerThreadShutdownFinishTask; |
140 friend class WorkerThreadWaitUntilIdleTask; | |
141 friend class WorkerThreadWakeupIdleTask; | |
128 | 142 |
129 void stopInShutdownSequence(); | 143 void stopInShutdownSequence(); |
130 void stopInternal(); | 144 void stopInternal(); |
131 | 145 |
132 void initialize(); | 146 void initialize(); |
133 void cleanup(); | 147 void cleanup(); |
134 void idleHandler(); | 148 void dontStartIdleTaskYet(); |
Sami
2015/04/09 10:52:29
Okay, I think I agree that it's probably better no
alex clarke (OOO till 29th)
2015/04/10 15:29:37
Acknowledged.
| |
149 void maybeStartIdleTask(); | |
150 void idleTask(double deadlineSeconds); | |
135 void postDelayedTask(PassOwnPtr<ExecutionContextTask>, long long delayMs); | 151 void postDelayedTask(PassOwnPtr<ExecutionContextTask>, long long delayMs); |
136 void postDelayedTask(const WebTraceLocation&, PassOwnPtr<ExecutionContextTas k>, long long delayMs); | 152 void postDelayedTask(const WebTraceLocation&, PassOwnPtr<ExecutionContextTas k>, long long delayMs); |
137 | 153 |
138 bool m_terminated; | 154 bool m_terminated; |
139 MessageQueue<WorkerThreadTask> m_debuggerMessageQueue; | 155 MessageQueue<WorkerThreadTask> m_debuggerMessageQueue; |
140 OwnPtr<WebThread::TaskObserver> m_microtaskRunner; | 156 OwnPtr<WebThread::TaskObserver> m_microtaskRunner; |
141 | 157 |
142 RefPtr<WorkerLoaderProxy> m_workerLoaderProxy; | 158 RefPtr<WorkerLoaderProxy> m_workerLoaderProxy; |
143 WorkerReportingProxy& m_workerReportingProxy; | 159 WorkerReportingProxy& m_workerReportingProxy; |
144 | 160 |
145 RefPtrWillBePersistent<WorkerInspectorController> m_workerInspectorControlle r; | 161 RefPtrWillBePersistent<WorkerInspectorController> m_workerInspectorControlle r; |
146 Mutex m_workerInspectorControllerMutex; | 162 Mutex m_workerInspectorControllerMutex; |
147 | 163 |
148 Mutex m_threadCreationMutex; | 164 Mutex m_threadCreationMutex; |
149 RefPtrWillBePersistent<WorkerGlobalScope> m_workerGlobalScope; | 165 RefPtrWillBePersistent<WorkerGlobalScope> m_workerGlobalScope; |
150 OwnPtr<WorkerThreadStartupData> m_startupData; | 166 OwnPtr<WorkerThreadStartupData> m_startupData; |
151 | 167 |
152 v8::Isolate* m_isolate; | 168 v8::Isolate* m_isolate; |
153 OwnPtr<V8IsolateInterruptor> m_interruptor; | 169 OwnPtr<V8IsolateInterruptor> m_interruptor; |
154 | 170 |
155 // Used to signal thread shutdown. | 171 // Used to signal thread shutdown. |
156 OwnPtr<WebWaitableEvent> m_shutdownEvent; | 172 OwnPtr<WebWaitableEvent> m_shutdownEvent; |
157 | 173 |
158 // Used to signal thread termination. | 174 // Used to signal thread termination. |
159 OwnPtr<WebWaitableEvent> m_terminationEvent; | 175 OwnPtr<WebWaitableEvent> m_terminationEvent; |
160 | 176 |
177 long long m_minQuietPeriodMsBeforeDoingIdleGc; | |
178 bool m_dontStartIdleTaskYet; | |
179 | |
161 // FIXME: This has to be last because of crbug.com/401397 - the | 180 // FIXME: This has to be last because of crbug.com/401397 - the |
162 // WorkerThread might get deleted before it had a chance to properly | 181 // WorkerThread might get deleted before it had a chance to properly |
163 // shut down. By deleting the WebThread first, we can guarantee that | 182 // shut down. By deleting the WebThread first, we can guarantee that |
164 // no pending tasks on the thread might want to access any of the other | 183 // no pending tasks on the thread might want to access any of the other |
165 // members during the WorkerThread's destruction. | 184 // members during the WorkerThread's destruction. |
166 OwnPtr<WebThreadSupportingGC> m_thread; | 185 OwnPtr<WebThreadSupportingGC> m_thread; |
167 }; | 186 }; |
168 | 187 |
169 } // namespace blink | 188 } // namespace blink |
170 | 189 |
171 #endif // WorkerThread_h | 190 #endif // WorkerThread_h |
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