mirror of
https://github.com/darlinghq/darling-WTF.git
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117 lines
3.6 KiB
C++
117 lines
3.6 KiB
C++
/*
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* Copyright (C) 2010, 2015 Apple Inc. All rights reserved.
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* Portions Copyright (c) 2010 Motorola Mobility, 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. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef WorkQueue_h
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#define WorkQueue_h
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#include <wtf/Forward.h>
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#include <wtf/FunctionDispatcher.h>
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#include <wtf/Seconds.h>
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#include <wtf/Threading.h>
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#if USE(COCOA_EVENT_LOOP)
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#include <dispatch/dispatch.h>
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#endif
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#if USE(WINDOWS_EVENT_LOOP)
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#include <wtf/ThreadingPrimitives.h>
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#include <wtf/Vector.h>
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#endif
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#if USE(GLIB_EVENT_LOOP) || USE(GENERIC_EVENT_LOOP)
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#include <wtf/Condition.h>
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#include <wtf/RunLoop.h>
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#endif
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namespace WTF {
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class WorkQueue final : public FunctionDispatcher {
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public:
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enum class Type {
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Serial,
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Concurrent
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};
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enum class QOS {
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UserInteractive,
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UserInitiated,
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Default,
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Utility,
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Background
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};
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WTF_EXPORT_PRIVATE static Ref<WorkQueue> create(const char* name, Type = Type::Serial, QOS = QOS::Default);
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virtual ~WorkQueue();
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WTF_EXPORT_PRIVATE void dispatch(Function<void()>&&) override;
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WTF_EXPORT_PRIVATE void dispatchAfter(Seconds, Function<void()>&&);
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WTF_EXPORT_PRIVATE static void concurrentApply(size_t iterations, WTF::Function<void(size_t index)>&&);
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#if USE(COCOA_EVENT_LOOP)
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dispatch_queue_t dispatchQueue() const { return m_dispatchQueue; }
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#elif USE(GLIB_EVENT_LOOP) || USE(GENERIC_EVENT_LOOP)
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RunLoop& runLoop() const { return *m_runLoop; }
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#endif
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private:
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explicit WorkQueue(const char* name, Type, QOS);
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void platformInitialize(const char* name, Type, QOS);
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void platformInvalidate();
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#if USE(WINDOWS_EVENT_LOOP)
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static void CALLBACK timerCallback(void* context, BOOLEAN timerOrWaitFired);
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static DWORD WINAPI workThreadCallback(void* context);
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bool tryRegisterAsWorkThread();
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void unregisterAsWorkThread();
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void performWorkOnRegisteredWorkThread();
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#endif
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#if USE(COCOA_EVENT_LOOP)
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static void executeFunction(void*);
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dispatch_queue_t m_dispatchQueue;
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#elif USE(WINDOWS_EVENT_LOOP)
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volatile LONG m_isWorkThreadRegistered;
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Mutex m_functionQueueLock;
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Vector<Function<void()>> m_functionQueue;
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HANDLE m_timerQueue;
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#elif USE(GLIB_EVENT_LOOP) || USE(GENERIC_EVENT_LOOP)
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RefPtr<Thread> m_workQueueThread;
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Lock m_initializeRunLoopConditionMutex;
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Condition m_initializeRunLoopCondition;
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RunLoop* m_runLoop;
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#endif
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};
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}
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using WTF::WorkQueue;
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#endif
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