1 /* 2 * Copyright (C) 2006 Apple Computer, Inc. All rights reserved. 3 * Copyright (C) 2009 Google Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #ifndef ThreadTimers_h 28 #define ThreadTimers_h 29 30 #include "platform/PlatformExport.h" 31 #include "wtf/Noncopyable.h" 32 #include "wtf/HashSet.h" 33 #include "wtf/Vector.h" 34 35 namespace blink { 36 37 class SharedTimer; 38 class TimerBase; 39 40 // A collection of timers per thread. Kept in PlatformThreadData. 41 class PLATFORM_EXPORT ThreadTimers { 42 WTF_MAKE_NONCOPYABLE(ThreadTimers); WTF_MAKE_FAST_ALLOCATED; 43 public: 44 ThreadTimers(); 45 46 // On a thread different then main, we should set the thread's instance of the SharedTimer. 47 void setSharedTimer(SharedTimer*); 48 timerHeap()49 Vector<TimerBase*>& timerHeap() { return m_timerHeap; } 50 51 void updateSharedTimer(); 52 void fireTimersInNestedEventLoop(); 53 54 private: 55 static void sharedTimerFired(); 56 57 void sharedTimerFiredInternal(); 58 void fireTimersInNestedEventLoopInternal(); 59 60 Vector<TimerBase*> m_timerHeap; 61 SharedTimer* m_sharedTimer; // External object, can be a run loop on a worker thread. Normally set/reset by worker thread. 62 bool m_firingTimers; // Reentrancy guard. 63 double m_pendingSharedTimerFireTime; 64 }; 65 66 } 67 68 #endif 69