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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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25 */ | 25 */ |
26 | 26 |
27 #ifndef WorkerThread_h | 27 #ifndef WorkerThread_h |
28 #define WorkerThread_h | 28 #define WorkerThread_h |
29 | 29 |
30 #include "core/CoreExport.h" | 30 #include "core/CoreExport.h" |
31 #include "core/dom/ExecutionContextTask.h" | 31 #include "core/dom/ExecutionContextTask.h" |
32 #include "core/frame/csp/ContentSecurityPolicy.h" | 32 #include "core/frame/csp/ContentSecurityPolicy.h" |
33 #include "core/workers/WorkerGlobalScope.h" | 33 #include "core/workers/WorkerGlobalScope.h" |
34 #include "core/workers/WorkerLoaderProxy.h" | 34 #include "core/workers/WorkerLoaderProxy.h" |
35 #include "core/workers/WorkerV8Isolate.h" | |
35 #include "platform/WebThreadSupportingGC.h" | 36 #include "platform/WebThreadSupportingGC.h" |
36 #include "platform/weborigin/SecurityOrigin.h" | 37 #include "platform/weborigin/SecurityOrigin.h" |
37 #include "wtf/Forward.h" | 38 #include "wtf/Forward.h" |
38 #include "wtf/MessageQueue.h" | 39 #include "wtf/MessageQueue.h" |
39 #include "wtf/OwnPtr.h" | 40 #include "wtf/OwnPtr.h" |
40 #include "wtf/PassRefPtr.h" | 41 #include "wtf/PassRefPtr.h" |
41 #include "wtf/RefCounted.h" | 42 #include "wtf/RefCounted.h" |
42 #include <v8.h> | 43 #include <v8.h> |
43 | 44 |
44 namespace blink { | 45 namespace blink { |
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65 virtual void stop(); | 66 virtual void stop(); |
66 | 67 |
67 // Returns the thread this worker runs on. Some implementations can create | 68 // Returns the thread this worker runs on. Some implementations can create |
68 // a new thread on the first call (e.g. shared, dedicated workers), whereas | 69 // a new thread on the first call (e.g. shared, dedicated workers), whereas |
69 // some implementations can use an existing thread that is already being | 70 // some implementations can use an existing thread that is already being |
70 // used by other workers (e.g. compositor workers). | 71 // used by other workers (e.g. compositor workers). |
71 virtual WebThreadSupportingGC& backingThread() = 0; | 72 virtual WebThreadSupportingGC& backingThread() = 0; |
72 | 73 |
73 virtual void didStartRunLoop(); | 74 virtual void didStartRunLoop(); |
74 virtual void didStopRunLoop(); | 75 virtual void didStopRunLoop(); |
76 virtual void initializeBackingThread(); | |
77 virtual void shutdownBackingThread(); | |
kinuko
2015/05/28 16:21:59
Are they called outside WorkerThread or subclass?
sadrul
2015/05/28 16:51:56
These are called only from inside WorkerThread, ex
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75 | 78 |
76 v8::Isolate* isolate() const { return m_isolate; } | 79 v8::Isolate* isolate() const { return m_isolate ? m_isolate->isolate() : nul lptr; } |
77 | 80 |
78 // Can be used to wait for this worker thread to shut down. | 81 // Can be used to wait for this worker thread to shut down. |
79 // (This is signalled on the main thread, so it's assumed to be waited on th e worker context thread) | 82 // (This is signalled on the main thread, so it's assumed to be waited on th e worker context thread) |
80 WebWaitableEvent* shutdownEvent() { return m_shutdownEvent.get(); } | 83 WebWaitableEvent* shutdownEvent() { return m_shutdownEvent.get(); } |
81 | 84 |
82 WebWaitableEvent* terminationEvent() { return m_terminationEvent.get(); } | 85 WebWaitableEvent* terminationEvent() { return m_terminationEvent.get(); } |
83 void terminateAndWait(); | 86 void terminateAndWait(); |
84 static void terminateAndWaitForAllWorkers(); | 87 static void terminateAndWaitForAllWorkers(); |
85 | 88 |
86 bool isCurrentThread(); | 89 bool isCurrentThread(); |
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115 void setWorkerInspectorController(WorkerInspectorController*); | 118 void setWorkerInspectorController(WorkerInspectorController*); |
116 | 119 |
117 protected: | 120 protected: |
118 WorkerThread(PassRefPtr<WorkerLoaderProxy>, WorkerReportingProxy&); | 121 WorkerThread(PassRefPtr<WorkerLoaderProxy>, WorkerReportingProxy&); |
119 | 122 |
120 // Factory method for creating a new worker context for the thread. | 123 // Factory method for creating a new worker context for the thread. |
121 virtual PassRefPtrWillBeRawPtr<WorkerGlobalScope> createWorkerGlobalScope(Pa ssOwnPtr<WorkerThreadStartupData>) = 0; | 124 virtual PassRefPtrWillBeRawPtr<WorkerGlobalScope> createWorkerGlobalScope(Pa ssOwnPtr<WorkerThreadStartupData>) = 0; |
122 | 125 |
123 virtual void postInitialize() { } | 126 virtual void postInitialize() { } |
124 | 127 |
125 virtual v8::Isolate* initializeIsolate(); | 128 virtual PassOwnPtr<WorkerV8Isolate> initializeIsolate(); |
126 virtual void willDestroyIsolate(); | 129 virtual void willDestroyIsolate(); |
127 virtual void destroyIsolate(); | 130 virtual void destroyIsolate(); |
128 virtual void terminateV8Execution(); | 131 virtual void terminateV8Execution(); |
129 | 132 |
130 // This is protected virtual for testing. | 133 // This is protected virtual for testing. |
131 virtual bool doIdleGc(double deadlineSeconds); | 134 virtual bool doIdleGc(double deadlineSeconds); |
132 | 135 |
133 private: | 136 private: |
134 friend class WorkerSharedTimer; | 137 friend class WorkerSharedTimer; |
135 friend class WorkerMicrotaskRunner; | 138 friend class WorkerMicrotaskRunner; |
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148 MessageQueue<WebThread::Task> m_debuggerMessageQueue; | 151 MessageQueue<WebThread::Task> m_debuggerMessageQueue; |
149 OwnPtr<WebThread::TaskObserver> m_microtaskRunner; | 152 OwnPtr<WebThread::TaskObserver> m_microtaskRunner; |
150 | 153 |
151 RefPtr<WorkerLoaderProxy> m_workerLoaderProxy; | 154 RefPtr<WorkerLoaderProxy> m_workerLoaderProxy; |
152 WorkerReportingProxy& m_workerReportingProxy; | 155 WorkerReportingProxy& m_workerReportingProxy; |
153 RawPtr<WebScheduler> m_webScheduler; // Not owned. | 156 RawPtr<WebScheduler> m_webScheduler; // Not owned. |
154 | 157 |
155 RefPtrWillBePersistent<WorkerInspectorController> m_workerInspectorControlle r; | 158 RefPtrWillBePersistent<WorkerInspectorController> m_workerInspectorControlle r; |
156 Mutex m_workerInspectorControllerMutex; | 159 Mutex m_workerInspectorControllerMutex; |
157 | 160 |
158 // This lock protects |m_workerGlobalScope|, |m_terminated|, |m_isolate| and |m_microtaskRunner|. | 161 // This lock protects |m_workerGlobalScope|, |m_terminated|, and |m_isolate| . |
159 Mutex m_threadStateMutex; | 162 Mutex m_threadStateMutex; |
160 | 163 |
161 RefPtrWillBePersistent<WorkerGlobalScope> m_workerGlobalScope; | 164 RefPtrWillBePersistent<WorkerGlobalScope> m_workerGlobalScope; |
162 | 165 |
163 v8::Isolate* m_isolate; | 166 OwnPtr<WorkerV8Isolate> m_isolate; |
kinuko
2015/05/28 16:21:59
thread and isolate are used in a very similar way,
sadrul
2015/05/28 16:51:56
They don't actually have to be. It needs a little
sadrul
2015/05/28 18:00:47
I have gone ahead and made this change. PTAL.
kinuko
2015/05/29 17:45:18
Well, was just asking because I vaguely remember y
sadrul
2015/05/29 18:26:32
I was, yes! (I was going to put it in WebThreadSup
kinuko
2015/05/31 15:18:24
WebThreadSupportingGC is used not only for JS-cont
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164 OwnPtr<V8IsolateInterruptor> m_interruptor; | |
165 | 167 |
166 // Used to signal thread shutdown. | 168 // Used to signal thread shutdown. |
167 OwnPtr<WebWaitableEvent> m_shutdownEvent; | 169 OwnPtr<WebWaitableEvent> m_shutdownEvent; |
168 | 170 |
169 // Used to signal thread termination. | 171 // Used to signal thread termination. |
170 OwnPtr<WebWaitableEvent> m_terminationEvent; | 172 OwnPtr<WebWaitableEvent> m_terminationEvent; |
171 }; | 173 }; |
172 | 174 |
173 } // namespace blink | 175 } // namespace blink |
174 | 176 |
175 #endif // WorkerThread_h | 177 #endif // WorkerThread_h |
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