1/* 2 * Copyright (C) 2013 Samsung Electronics. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' 14 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS 17 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 18 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 19 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 20 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 21 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 22 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 23 * THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#ifndef DispatchQueueWorkItemEfl_h 27#define DispatchQueueWorkItemEfl_h 28 29#include <WorkQueue.h> 30#include <wtf/Assertions.h> 31#include <wtf/CurrentTime.h> 32#include <wtf/Functional.h> 33#include <wtf/RefCounted.h> 34 35class WorkItem { 36public: 37 static std::unique_ptr<WorkItem> create(PassRefPtr<WorkQueue> workQueue, std::function<void ()> function) 38 { 39 return std::unique_ptr<WorkItem>(new WorkItem(workQueue, WTF::move(function))); 40 } 41 void dispatch() { m_function(); } 42 43protected: 44 WorkItem(PassRefPtr<WorkQueue> workQueue, std::function<void ()> function) 45 : m_workQueue(workQueue) 46 , m_function(WTF::move(function)) 47 { 48 } 49 50private: 51 RefPtr<WorkQueue> m_workQueue; 52 std::function<void ()> m_function; 53}; 54 55class TimerWorkItem : public WorkItem { 56public: 57 static std::unique_ptr<TimerWorkItem> create(PassRefPtr<WorkQueue> workQueue, std::function<void ()> function, std::chrono::nanoseconds delayNanoSeconds) 58 { 59 ASSERT(delayNanoSeconds.count() >= 0); 60 return std::unique_ptr<TimerWorkItem>(new TimerWorkItem(workQueue, WTF::move(function), monotonicallyIncreasingTime() * 1000000000.0 + delayNanoSeconds.count())); 61 } 62 double expirationTimeNanoSeconds() const { return m_expirationTimeNanoSeconds; } 63 bool hasExpired(double currentTimeNanoSeconds) const { return currentTimeNanoSeconds >= m_expirationTimeNanoSeconds; } 64 65protected: 66 TimerWorkItem(PassRefPtr<WorkQueue> workQueue, std::function<void ()> function, double expirationTimeNanoSeconds) 67 : WorkItem(workQueue, WTF::move(function)) 68 , m_expirationTimeNanoSeconds(expirationTimeNanoSeconds) 69 { 70 } 71 72private: 73 double m_expirationTimeNanoSeconds; 74}; 75 76#endif // DispatchQueueWorkItemEfl_h 77