115 lines
5.6 KiB
C++
115 lines
5.6 KiB
C++
/*
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* Copyright (C) 2008-2017 Apple Inc. All Rights Reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "WorkerGlobalScopeProxy.h"
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#include "WorkerDebuggerProxy.h"
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#include "WorkerLoaderProxy.h"
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#include "WorkerObjectProxy.h"
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#include <wtf/MonotonicTime.h>
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#include <wtf/ThreadSafeRefCounted.h>
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namespace WebCore {
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class DedicatedWorkerThread;
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class WorkerInspectorProxy;
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class WorkerMessagingProxy final : public ThreadSafeRefCounted<WorkerMessagingProxy>, public WorkerGlobalScopeProxy, public WorkerObjectProxy, public WorkerLoaderProxy, public WorkerDebuggerProxy {
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WTF_MAKE_FAST_ALLOCATED;
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public:
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explicit WorkerMessagingProxy(Worker&);
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virtual ~WorkerMessagingProxy();
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// Implementation of WorkerLoaderProxy.
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// This method is used in the main thread to post task back to the worker thread.
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bool postTaskForModeToWorkerOrWorkletGlobalScope(ScriptExecutionContext::Task&&, const String& mode) final;
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private:
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// Implementations of WorkerGlobalScopeProxy.
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// (Only use these functions in the worker object thread.)
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void startWorkerGlobalScope(const URL& scriptURL, const String& name, const String& userAgent, bool isOnline, const ScriptBuffer& sourceCode, const ContentSecurityPolicyResponseHeaders&, bool shouldBypassMainWorldContentSecurityPolicy, const CrossOriginEmbedderPolicy&, MonotonicTime timeOrigin, ReferrerPolicy, WorkerType, FetchRequestCredentials, JSC::RuntimeFlags) final;
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void terminateWorkerGlobalScope() final;
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void postMessageToWorkerGlobalScope(MessageWithMessagePorts&&) final;
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void postTaskToWorkerGlobalScope(Function<void(ScriptExecutionContext&)>&&) final;
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bool hasPendingActivity() const final;
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void workerObjectDestroyed() final;
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void notifyNetworkStateChange(bool isOnline) final;
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void suspendForBackForwardCache() final;
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void resumeForBackForwardCache() final;
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// Implementation of WorkerObjectProxy.
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// (Only use these functions in the worker context thread.)
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void postMessageToWorkerObject(MessageWithMessagePorts&&) final;
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void postTaskToWorkerObject(Function<void(Worker&)>&&) final;
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void postExceptionToWorkerObject(const String& errorMessage, int lineNumber, int columnNumber, const String& sourceURL) final;
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void confirmMessageFromWorkerObject(bool hasPendingActivity) final;
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void reportPendingActivity(bool hasPendingActivity) final;
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void workerGlobalScopeClosed() final;
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void workerGlobalScopeDestroyed() final;
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// Implementation of WorkerDebuggerProxy.
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// (Only use these functions in the worker context thread.)
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void postMessageToDebugger(const String&) final;
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void setResourceCachingDisabledByWebInspector(bool) final;
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// Implementation of WorkerLoaderProxy.
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// These functions are called on different threads to schedule loading
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// requests and to send callbacks back to WorkerGlobalScope.
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bool isWorkerMessagingProxy() const final { return true; }
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void postTaskToLoader(ScriptExecutionContext::Task&&) final;
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RefPtr<CacheStorageConnection> createCacheStorageConnection() final;
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RefPtr<RTCDataChannelRemoteHandlerConnection> createRTCDataChannelRemoteHandlerConnection() final;
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void workerThreadCreated(DedicatedWorkerThread&);
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// Only use this method on the worker object thread.
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bool askedToTerminate() const { return m_askedToTerminate; }
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void workerGlobalScopeDestroyedInternal();
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void reportPendingActivityInternal(bool confirmingMessage, bool hasPendingActivity);
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Worker* workerObject() const { return m_workerObject; }
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RefPtr<ScriptExecutionContext> m_scriptExecutionContext;
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std::unique_ptr<WorkerInspectorProxy> m_inspectorProxy;
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Worker* m_workerObject;
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bool m_mayBeDestroyed { false };
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RefPtr<DedicatedWorkerThread> m_workerThread;
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unsigned m_unconfirmedMessageCount { 0 }; // Unconfirmed messages from worker object to worker thread.
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bool m_workerThreadHadPendingActivity { false }; // The latest confirmation from worker thread reported that it was still active.
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bool m_askedToSuspend { false };
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bool m_askedToTerminate { false };
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Vector<std::unique_ptr<ScriptExecutionContext::Task>> m_queuedEarlyTasks; // Tasks are queued here until there's a thread object created.
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};
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} // namespace WebCore
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SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::WorkerMessagingProxy)
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static bool isType(const WebCore::WorkerLoaderProxy& proxy) { return proxy.isWorkerMessagingProxy(); }
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SPECIALIZE_TYPE_TRAITS_END()
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