1 /* 2 * Copyright (C) 2008 Apple Inc. 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 * 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 * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of 14 * its contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY 18 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 19 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 20 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY 21 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 22 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #ifndef TimeoutChecker_h 30 #define TimeoutChecker_h 31 32 #include <wtf/Assertions.h> 33 34 #ifdef ANDROID_INSTRUMENT 35 #include "TimeCounter.h" 36 #endif 37 38 namespace JSC { 39 40 class ExecState; 41 42 class TimeoutChecker { 43 public: 44 TimeoutChecker(); 45 setTimeoutInterval(unsigned timeoutInterval)46 void setTimeoutInterval(unsigned timeoutInterval) { m_timeoutInterval = timeoutInterval; } 47 ticksUntilNextCheck()48 unsigned ticksUntilNextCheck() { return m_ticksUntilNextCheck; } 49 start()50 void start() 51 { 52 if (!m_startCount) 53 reset(); 54 #ifdef ANDROID_INSTRUMENT 55 if (!m_startCount) 56 android::TimeCounter::start(android::TimeCounter::JavaScriptTimeCounter); 57 #endif 58 ++m_startCount; 59 } 60 stop()61 void stop() 62 { 63 ASSERT(m_startCount); 64 --m_startCount; 65 #ifdef ANDROID_INSTRUMENT 66 if (!m_startCount) 67 android::TimeCounter::record(android::TimeCounter::JavaScriptTimeCounter, __FUNCTION__); 68 #endif 69 } 70 71 void reset(); 72 73 bool didTimeOut(ExecState*); 74 75 private: 76 unsigned m_timeoutInterval; 77 unsigned m_timeAtLastCheck; 78 unsigned m_timeExecuting; 79 unsigned m_startCount; 80 unsigned m_ticksUntilNextCheck; 81 }; 82 83 } // namespace JSC 84 85 #endif // TimeoutChecker_h 86