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/*
* Copyright (C) 2008 Kenneth Rohde Christiansen
* (C) 2008 Afonso Rabelo Costa Jr.
* (C) 2009-2010 ProFUSION embedded systems
* (C) 2009-2010 Samsung Electronics
*
* 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.
*/
#include "config.h"
#include "SharedTimer.h"
#include <Ecore.h>
#include <pthread.h>
#include <stdio.h>
#include <wtf/Assertions.h>
#include <wtf/CurrentTime.h>
#include <wtf/MainThread.h>
namespace WebCore {
static pthread_mutex_t timerMutex = PTHREAD_MUTEX_INITIALIZER;
static Ecore_Timer *_sharedTimer = 0;
static Ecore_Pipe *_pipe = 0;
static void (*_timerFunction)();
struct timerOp {
double time;
unsigned char op; // 0 - add a timer; 1 - del a timer;
};
void setSharedTimerFiredFunction(void (*func)())
{
_timerFunction = func;
}
static Eina_Bool timerEvent(void*)
{
if (_timerFunction)
_timerFunction();
_sharedTimer = 0;
return ECORE_CALLBACK_CANCEL;
}
void processTimers(struct timerOp *tOp)
{
if (_sharedTimer) {
ecore_timer_del(_sharedTimer);
_sharedTimer = 0;
}
if (tOp->op == 1)
return;
double interval = tOp->time - currentTime();
if (interval <= ecore_animator_frametime_get()) {
if (_timerFunction)
_timerFunction();
return;
}
_sharedTimer = ecore_timer_add(interval, timerEvent, 0);
}
void pipeHandlerCb(void *data, void *buffer, unsigned int nbyte)
{
ASSERT(nbyte == sizeof(struct timerOp));
struct timerOp *tOp = (struct timerOp *)buffer;
processTimers(tOp);
}
void stopSharedTimer()
{
struct timerOp tOp;
pthread_mutex_lock(&timerMutex);
if (!_pipe)
_pipe = ecore_pipe_add(pipeHandlerCb, 0);
pthread_mutex_unlock(&timerMutex);
tOp.op = 1;
ecore_pipe_write(_pipe, &tOp, sizeof(tOp));
}
void addNewTimer(double fireTime)
{
struct timerOp tOp;
pthread_mutex_lock(&timerMutex);
if (!_pipe)
_pipe = ecore_pipe_add(pipeHandlerCb, 0);
pthread_mutex_unlock(&timerMutex);
tOp.time = fireTime;
tOp.op = 0;
ecore_pipe_write(_pipe, &tOp, sizeof(tOp));
}
void setSharedTimerFireTime(double fireTime)
{
addNewTimer(fireTime);
}
}
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