| /* |
| * Copyright (C) 2008 Apple Inc. All Rights Reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| */ |
| |
| #ifndef InProcessWorkerMessagingProxy_h |
| #define InProcessWorkerMessagingProxy_h |
| |
| #include "core/CoreExport.h" |
| #include "core/dom/ExecutionContext.h" |
| #include "core/workers/InProcessWorkerGlobalScopeProxy.h" |
| #include "core/workers/WorkerLoaderProxy.h" |
| #include "wtf/Forward.h" |
| #include "wtf/Noncopyable.h" |
| #include "wtf/PassOwnPtr.h" |
| #include "wtf/PassRefPtr.h" |
| #include "wtf/RefPtr.h" |
| #include "wtf/Vector.h" |
| |
| namespace blink { |
| |
| class WorkerObjectProxy; |
| class WorkerThread; |
| class ExecutionContext; |
| class InProcessWorkerBase; |
| class WorkerClients; |
| class WorkerInspectorProxy; |
| |
| // TODO(nhiroki): "MessagingProxy" is not well-defined term among worker |
| // components. Probably we should rename this to something more suitable. |
| // (http://crbug.com/603785) |
| class CORE_EXPORT InProcessWorkerMessagingProxy |
| : public InProcessWorkerGlobalScopeProxy |
| , private WorkerLoaderProxyProvider { |
| WTF_MAKE_NONCOPYABLE(InProcessWorkerMessagingProxy); |
| public: |
| // Implementations of InProcessWorkerGlobalScopeProxy. |
| // (Only use these methods in the worker object thread.) |
| void startWorkerGlobalScope(const KURL& scriptURL, const String& userAgent, const String& sourceCode) override; |
| void terminateWorkerGlobalScope() override; |
| void postMessageToWorkerGlobalScope(PassRefPtr<SerializedScriptValue>, PassOwnPtr<MessagePortChannelArray>) override; |
| bool hasPendingActivity() const final; |
| void workerObjectDestroyed() override; |
| |
| // These methods come from worker context thread via WorkerObjectProxy |
| // and are called on the worker object thread (e.g. main thread). |
| void postMessageToWorkerObject(PassRefPtr<SerializedScriptValue>, PassOwnPtr<MessagePortChannelArray>); |
| void reportException(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL, int exceptionId); |
| void reportConsoleMessage(MessageSource, MessageLevel, const String& message, int lineNumber, const String& sourceURL); |
| void postMessageToPageInspector(const String&); |
| void postWorkerConsoleAgentEnabled(); |
| void confirmMessageFromWorkerObject(bool hasPendingActivity); |
| void reportPendingActivity(bool hasPendingActivity); |
| void workerGlobalScopeClosed(); |
| void workerThreadTerminated(); |
| void workerThreadCreated(); |
| |
| ExecutionContext* getExecutionContext() const { return m_executionContext.get(); } |
| |
| protected: |
| InProcessWorkerMessagingProxy(InProcessWorkerBase*, WorkerClients*); |
| ~InProcessWorkerMessagingProxy() override; |
| |
| virtual PassOwnPtr<WorkerThread> createWorkerThread(double originTime) = 0; |
| |
| PassRefPtr<WorkerLoaderProxy> loaderProxy() { return m_loaderProxy; } |
| WorkerObjectProxy& workerObjectProxy() { return *m_workerObjectProxy.get(); } |
| |
| private: |
| void workerObjectDestroyedInternal(); |
| void terminateInternally(); |
| |
| // WorkerLoaderProxyProvider |
| // These methods are called on different threads to schedule loading |
| // requests and to send callbacks back to WorkerGlobalScope. |
| void postTaskToLoader(PassOwnPtr<ExecutionContextTask>) override; |
| bool postTaskToWorkerGlobalScope(PassOwnPtr<ExecutionContextTask>) override; |
| |
| Persistent<ExecutionContext> m_executionContext; |
| OwnPtr<WorkerObjectProxy> m_workerObjectProxy; |
| WeakPersistent<InProcessWorkerBase> m_workerObject; |
| bool m_mayBeDestroyed; |
| OwnPtr<WorkerThread> m_workerThread; |
| |
| unsigned m_unconfirmedMessageCount; // Unconfirmed messages from worker object to worker thread. |
| bool m_workerThreadHadPendingActivity; // The latest confirmation from worker thread reported that it was still active. |
| |
| bool m_askedToTerminate; |
| |
| Vector<OwnPtr<ExecutionContextTask>> m_queuedEarlyTasks; // Tasks are queued here until there's a thread object created. |
| Persistent<WorkerInspectorProxy> m_workerInspectorProxy; |
| |
| Persistent<WorkerClients> m_workerClients; |
| |
| RefPtr<WorkerLoaderProxy> m_loaderProxy; |
| }; |
| |
| } // namespace blink |
| |
| #endif // InProcessWorkerMessagingProxy_h |