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27 #ifndef WorkerMessagingProxy_h
28 #define WorkerMessagingProxy_h
30 #include "core/dom/ExecutionContext.h"
31 #include "core/workers/WorkerGlobalScopeProxy.h"
32 #include "core/workers/WorkerLoaderProxy.h"
33 #include "wtf/Forward.h"
34 #include "wtf/Noncopyable.h"
35 #include "wtf/PassOwnPtr.h"
36 #include "wtf/PassRefPtr.h"
37 #include "wtf/RefPtr.h"
38 #include "wtf/Vector.h"
42 class WorkerObjectProxy;
43 class DedicatedWorkerThread;
44 class ExecutionContext;
47 class WorkerInspectorProxy;
49 class WorkerMessagingProxy final : public WorkerGlobalScopeProxy, public WorkerLoaderProxy {
50 WTF_MAKE_NONCOPYABLE(WorkerMessagingProxy); WTF_MAKE_FAST_ALLOCATED;
52 WorkerMessagingProxy(Worker*, PassOwnPtrWillBeRawPtr<WorkerClients>);
54 // Implementations of WorkerGlobalScopeProxy.
55 // (Only use these methods in the worker object thread.)
56 virtual void startWorkerGlobalScope(const KURL& scriptURL, const String& userAgent, const String& sourceCode, WorkerThreadStartMode) override;
57 virtual void terminateWorkerGlobalScope() override;
58 virtual void postMessageToWorkerGlobalScope(PassRefPtr<SerializedScriptValue>, PassOwnPtr<MessagePortChannelArray>) override;
59 virtual bool hasPendingActivity() const override;
60 virtual void workerObjectDestroyed() override;
62 // These methods come from worker context thread via WorkerObjectProxy
63 // and are called on the worker object thread (e.g. main thread).
64 void postMessageToWorkerObject(PassRefPtr<SerializedScriptValue>, PassOwnPtr<MessagePortChannelArray>);
65 void reportException(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL);
66 void reportConsoleMessage(MessageSource, MessageLevel, const String& message, int lineNumber, const String& sourceURL);
67 void postMessageToPageInspector(const String&);
68 WorkerInspectorProxy* workerInspectorProxy();
69 void confirmMessageFromWorkerObject(bool hasPendingActivity);
70 void reportPendingActivity(bool hasPendingActivity);
71 void workerGlobalScopeClosed();
72 void workerThreadTerminated();
74 // Implementation of WorkerLoaderProxy.
75 // These methods are called on different threads to schedule loading
76 // requests and to send callbacks back to WorkerGlobalScope.
77 virtual void postTaskToLoader(PassOwnPtr<ExecutionContextTask>) override;
78 virtual bool postTaskToWorkerGlobalScope(PassOwnPtr<ExecutionContextTask>) override;
80 void workerThreadCreated(PassRefPtr<DedicatedWorkerThread>);
83 virtual ~WorkerMessagingProxy();
86 static void workerObjectDestroyedInternal(ExecutionContext*, WorkerMessagingProxy*);
87 void terminateInternally();
89 RefPtrWillBePersistent<ExecutionContext> m_executionContext;
90 OwnPtr<WorkerObjectProxy> m_workerObjectProxy;
91 Worker* m_workerObject;
92 bool m_mayBeDestroyed;
93 RefPtr<DedicatedWorkerThread> m_workerThread;
95 unsigned m_unconfirmedMessageCount; // Unconfirmed messages from worker object to worker thread.
96 bool m_workerThreadHadPendingActivity; // The latest confirmation from worker thread reported that it was still active.
98 bool m_askedToTerminate;
100 Vector<OwnPtr<ExecutionContextTask>> m_queuedEarlyTasks; // Tasks are queued here until there's a thread object created.
101 OwnPtr<WorkerInspectorProxy> m_workerInspectorProxy;
103 OwnPtrWillBePersistent<WorkerClients> m_workerClients;
108 #endif // WorkerMessagingProxy_h