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; } timeoutInterval()47 unsigned timeoutInterval() const { return m_timeoutInterval; } 48 ticksUntilNextCheck()49 unsigned ticksUntilNextCheck() { return m_ticksUntilNextCheck; } 50 start()51 void start() 52 { 53 if (!m_startCount) 54 reset(); 55 #ifdef ANDROID_INSTRUMENT 56 if (!m_startCount) 57 android::TimeCounter::start(android::TimeCounter::JavaScriptTimeCounter); 58 #endif 59 ++m_startCount; 60 } 61 stop()62 void stop() 63 { 64 ASSERT(m_startCount); 65 --m_startCount; 66 #ifdef ANDROID_INSTRUMENT 67 if (!m_startCount) 68 android::TimeCounter::record(android::TimeCounter::JavaScriptTimeCounter, __FUNCTION__); 69 #endif 70 } 71 72 void reset(); 73 74 bool didTimeOut(ExecState*); 75 76 private: 77 unsigned m_timeoutInterval; 78 unsigned m_timeAtLastCheck; 79 unsigned m_timeExecuting; 80 unsigned m_startCount; 81 unsigned m_ticksUntilNextCheck; 82 }; 83 84 } // namespace JSC 85 86 #endif // TimeoutChecker_h 87