void RunLoop::TimerBase::timerFired(CFRunLoopTimerRef, void* context)
{
TimerBase* timer = static_cast<TimerBase*>(context);
AutodrainedPool pool;
timer->fired();
}
void ThreadTimers::sharedTimerFiredInternal()
{
// Do a re-entrancy check.
if (m_firingTimers)
return;
m_firingTimers = true;
m_pendingSharedTimerFireTime = 0;
double fireTime = monotonicallyIncreasingTime();
double timeToQuit = fireTime + maxDurationOfFiringTimers;
while (!m_timerHeap.isEmpty() && m_timerHeap.first()->m_nextFireTime <= fireTime) {
TimerBase* timer = m_timerHeap.first();
timer->m_nextFireTime = 0;
timer->m_unalignedNextFireTime = 0;
timer->heapDeleteMin();
double interval = timer->repeatInterval();
timer->setNextFireTime(interval ? fireTime + interval : 0);
// Once the timer has been fired, it may be deleted, so do nothing else with it after this point.
timer->fired();
// Catch the case where the timer asked timers to fire in a nested event loop, or we are over time limit.
if (!m_firingTimers || timeToQuit < monotonicallyIncreasingTime())
break;
}
m_firingTimers = false;
updateSharedTimer();
}
void TimerBase::collectFiringTimers(double fireTime, Vector<TimerBase*>& firingTimers)
{
while (!timerHeap->isEmpty() && timerHeap->first()->m_nextFireTime <= fireTime) {
TimerBase* timer = timerHeap->first();
firingTimers.append(timer);
timersReadyToFire->add(timer);
timer->m_nextFireTime = 0;
timer->heapDeleteMin();
}
}
void RunLoop::TimerBase::timerFired(RunLoop* runLoop, uint64_t ID)
{
TimerMap::iterator it = runLoop->m_activeTimers.find(ID);
ASSERT(it != runLoop->m_activeTimers.end());
TimerBase* timer = it->second;
// FIMXE: Support repeating timers.
::KillTimer(runLoop->m_runLoopMessageWindow, ID);
timer->fired();
}
void RunLoop::TimerBase::timerFired(RunLoop* runLoop, uint64_t ID)
{
TimerMap::iterator it = runLoop->m_activeTimers.find(ID);
ASSERT(it != runLoop->m_activeTimers.end());
TimerBase* timer = it->second;
if (!timer->m_isRepeating) {
runLoop->m_activeTimers.remove(it);
::KillTimer(runLoop->m_runLoopMessageWindow, ID);
}
timer->fired();
}
void TimerBase::callback(void* arg)
{
/*
TimerBase* t = (TimerBase*) arg;
t->stop();
bool ret = t->timeout();
if (!ret || t->m_singleShot) {
return;
}
// periodic timer. restart
t->start(t->m_interval, false);
*/
TimerBase* t = (TimerBase*) arg;
SingletonTimer* master = t->m_master;
TimerHandle* handle = t->m_handle;
master->ref(handle);
bool ret = t->timeout();
// stop if:
// a. this is a singleshot timer
// b. callback returned false
//
// but if it stopped and restarted the timer
// (which will cause the handle to change), we need
// to continue
if (!ret || t->m_singleShot) {
if (!t->m_handle || (t->m_handle == handle)) {
master->deref(handle);
t->stop();
return;
}
}
// periodic timer. reschedule
master->deref(handle);
// Need to check if the handle is valid here because
// someone could have called stop in the callback but still
// returned true from the callback
if (t->m_handle) {
master->fire(t->m_handle, SingletonTimer::currentTime() + t->m_interval);
}
}
TimerBase* TimerList::PopFront() {
TimerBase* p = _head;
if (_head) {
_head = _head->GetNext();
if (!_head)
_tail = nullptr;
else
_head->SetPrev(nullptr);
p->SetNext(nullptr);
p->SetPrev(nullptr);
p->SetList(nullptr);
}
return p;
}
void RunLoop::TimerBase::timerFired(RunLoop* runLoop, uint64_t ID)
{
TimerMap::iterator it = runLoop->m_activeTimers.find(ID);
if (it == runLoop->m_activeTimers.end()) {
// The timer must have been stopped after the WM_TIMER message was posted to the message queue.
return;
}
TimerBase* timer = it->value;
if (!timer->m_isRepeating) {
runLoop->m_activeTimers.remove(it);
::KillTimer(runLoop->m_runLoopMessageWindow, ID);
}
timer->fired();
}
TimeoutGuard::TimeoutGuard(timer::ticks_t beginTicks, timer::ticks_t ticks,
TimerBase& timer, Thread* pThread) :
m_timer(timer), m_pThread(pThread)
{
// ----- Critical section begin -----------------------------------------
os::core::scheduler::InterruptsCriticalSection cs;
timer::ticks_t nowTicks = timer.getCurrentTicks();
if ((nowTicks - beginTicks) >= ticks)
{
m_didTimeout = true;
}
else
{
// Normally the entry should not be there, but for just in case
timer.remove(pThread);
timer.insert(ticks, pThread);
m_didTimeout = false;
}
// ----- Critical section end -------------------------------------------
}
void TimerBase::fireTimers(double fireTime, const Vector<TimerBase*>& firingTimers)
{
int size = firingTimers.size();
for (int i = 0; i != size; ++i) {
TimerBase* timer = firingTimers[i];
// If not in the set, this timer has been deleted or re-scheduled in another timer's fired function.
// So either we don't want to fire it at all or we will fire it next time the shared timer goes off.
// It might even have been deleted; that's OK because we won't do anything else with the pointer.
if (!timersReadyToFire->contains(timer))
continue;
// Setting the next fire time has a side effect of removing the timer from the firing timers set.
double interval = timer->repeatInterval();
timer->setNextFireTime(interval ? fireTime + interval : 0);
// Once the timer has been fired, it may be deleted, so do nothing else with it after this point.
timer->fired();
// Catch the case where the timer asked timers to fire in a nested event loop.
if (!timersReadyToFire)
break;
}
}
