From 1bf1084f2b10c3b47fd1a588d85d21ed0eb41d0c Mon Sep 17 00:00:00 2001 From: Lorry Tar Creator Date: Tue, 27 Jun 2017 06:07:23 +0000 Subject: webkitgtk-2.16.5 --- Source/WTF/wtf/WorkQueue.h | 117 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 Source/WTF/wtf/WorkQueue.h (limited to 'Source/WTF/wtf/WorkQueue.h') diff --git a/Source/WTF/wtf/WorkQueue.h b/Source/WTF/wtf/WorkQueue.h new file mode 100644 index 000000000..429c38d86 --- /dev/null +++ b/Source/WTF/wtf/WorkQueue.h @@ -0,0 +1,117 @@ +/* + * Copyright (C) 2010, 2015 Apple Inc. All rights reserved. + * Portions Copyright (c) 2010 Motorola Mobility, 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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 WorkQueue_h +#define WorkQueue_h + +#include +#include +#include +#include +#include +#include + +#if USE(COCOA_EVENT_LOOP) +#include +#endif + +#if USE(WINDOWS_EVENT_LOOP) +#include +#endif + +#if USE(GLIB_EVENT_LOOP) || USE(GENERIC_EVENT_LOOP) +#include +#include +#endif + +namespace WTF { + +class WorkQueue final : public FunctionDispatcher { +public: + enum class Type { + Serial, + Concurrent + }; + enum class QOS { + UserInteractive, + UserInitiated, + Default, + Utility, + Background + }; + + WTF_EXPORT_PRIVATE static Ref create(const char* name, Type = Type::Serial, QOS = QOS::Default); + virtual ~WorkQueue(); + + WTF_EXPORT_PRIVATE void dispatch(Function&&) override; + WTF_EXPORT_PRIVATE void dispatchAfter(std::chrono::nanoseconds, Function&&); + + WTF_EXPORT_PRIVATE static void concurrentApply(size_t iterations, const std::function&); + +#if USE(COCOA_EVENT_LOOP) + dispatch_queue_t dispatchQueue() const { return m_dispatchQueue; } +#elif USE(GLIB_EVENT_LOOP) || USE(GENERIC_EVENT_LOOP) + RunLoop& runLoop() const { return *m_runLoop; } +#endif + +private: + explicit WorkQueue(const char* name, Type, QOS); + + void platformInitialize(const char* name, Type, QOS); + void platformInvalidate(); + +#if USE(WINDOWS_EVENT_LOOP) + static void CALLBACK timerCallback(void* context, BOOLEAN timerOrWaitFired); + static DWORD WINAPI workThreadCallback(void* context); + + bool tryRegisterAsWorkThread(); + void unregisterAsWorkThread(); + void performWorkOnRegisteredWorkThread(); +#endif + +#if USE(COCOA_EVENT_LOOP) + static void executeFunction(void*); + dispatch_queue_t m_dispatchQueue; +#elif USE(WINDOWS_EVENT_LOOP) + volatile LONG m_isWorkThreadRegistered; + + Mutex m_functionQueueLock; + Vector> m_functionQueue; + + HANDLE m_timerQueue; +#elif USE(GLIB_EVENT_LOOP) || USE(GENERIC_EVENT_LOOP) + ThreadIdentifier m_workQueueThread; + Lock m_initializeRunLoopConditionMutex; + Condition m_initializeRunLoopCondition; + RunLoop* m_runLoop; +#endif +}; + +} + +using WTF::WorkQueue; + +#endif -- cgit v1.2.1