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/*
* Copyright (C) 2006 Apple Computer, 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 COMPUTER, INC. OR
* 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 SharedTimer_h
#define SharedTimer_h
#include <wtf/FastAllocBase.h>
#include <wtf/Noncopyable.h>
namespace WebCore {
// Each thread has its own single instance of shared timer, which implements this interface.
// This instance is shared by all timers in the thread.
// Not intended to be used directly; use the Timer class instead.
class SharedTimer {
WTF_MAKE_NONCOPYABLE(SharedTimer); WTF_MAKE_FAST_ALLOCATED;
public:
SharedTimer() { }
virtual ~SharedTimer() {}
virtual void setFiredFunction(void (*)()) = 0;
// The fire time is relative to the classic POSIX epoch of January 1, 1970,
// as the result of currentTime() is.
virtual void setFireTime(double) = 0;
virtual void stop() = 0;
};
// Implemented by port (since it provides the run loop for the main thread).
// FIXME: make ports implement MainThreadSharedTimer directly instead.
void setSharedTimerFiredFunction(void (*)());
void setSharedTimerFireTime(double);
void stopSharedTimer();
// Implementation of SharedTimer for the main thread.
class MainThreadSharedTimer : public SharedTimer {
public:
virtual void setFiredFunction(void (*function)())
{
setSharedTimerFiredFunction(function);
}
virtual void setFireTime(double fireTime)
{
setSharedTimerFireTime(fireTime);
}
virtual void stop()
{
stopSharedTimer();
}
};
} // namespace WebCore
#endif // SharedTimer_h
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