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/*
* Copyright (C) 2008 Apple 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.
* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
* its contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY APPLE 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 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 TimeoutChecker_h
#define TimeoutChecker_h
#include <wtf/Assertions.h>
namespace JSC {
class ExecState;
class TimeoutChecker {
public:
TimeoutChecker();
void setTimeoutInterval(unsigned timeoutInterval) { m_timeoutInterval = timeoutInterval; }
unsigned ticksUntilNextCheck() { return m_ticksUntilNextCheck; }
void start()
{
if (!m_startCount)
reset();
++m_startCount;
}
void stop()
{
ASSERT(m_startCount);
--m_startCount;
}
void reset();
bool didTimeOut(ExecState*);
private:
unsigned m_timeoutInterval;
unsigned m_timeAtLastCheck;
unsigned m_timeExecuting;
unsigned m_startCount;
unsigned m_ticksUntilNextCheck;
};
} // namespace JSC
#endif // TimeoutChecker_h
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