void
CompositorParent::ScheduleComposition()
{
if (mCurrentCompositeTask || mPaused) {
return;
}
bool initialComposition = mLastCompose.IsNull();
TimeDuration delta;
if (!initialComposition)
delta = TimeStamp::Now() - mLastCompose;
int32_t rate = CalculateCompositionFrameRate();
// If rate == 0 (ASAP mode), minFrameDelta must be 0 so there's no delay.
TimeDuration minFrameDelta = TimeDuration::FromMilliseconds(
rate == 0 ? 0.0 : std::max(0.0, 1000.0 / rate));
mCurrentCompositeTask = NewRunnableMethod(this, &CompositorParent::CompositeCallback);
if (!initialComposition && delta < minFrameDelta) {
TimeDuration delay = minFrameDelta - delta;
#ifdef COMPOSITOR_PERFORMANCE_WARNING
mExpectedComposeStartTime = TimeStamp::Now() + delay;
#endif
ScheduleTask(mCurrentCompositeTask, delay.ToMilliseconds());
} else {
#ifdef COMPOSITOR_PERFORMANCE_WARNING
mExpectedComposeStartTime = TimeStamp::Now();
#endif
ScheduleTask(mCurrentCompositeTask, 0);
}
}
void
CompositorParent::ScheduleComposition()
{
if (mCurrentCompositeTask) {
return;
}
bool initialComposition = mLastCompose.IsNull();
TimeDuration delta;
if (!initialComposition)
delta = mozilla::TimeStamp::Now() - mLastCompose;
#ifdef COMPOSITOR_PERFORMANCE_WARNING
mExpectedComposeTime = mozilla::TimeStamp::Now() + TimeDuration::FromMilliseconds(15);
#endif
mCurrentCompositeTask = NewRunnableMethod(this, &CompositorParent::Composite);
// Since 60 fps is the maximum frame rate we can acheive, scheduling composition
// events less than 15 ms apart wastes computation..
if (!initialComposition && delta.ToMilliseconds() < 15) {
#ifdef COMPOSITOR_PERFORMANCE_WARNING
mExpectedComposeTime = mozilla::TimeStamp::Now() + TimeDuration::FromMilliseconds(15 - delta.ToMilliseconds());
#endif
ScheduleTask(mCurrentCompositeTask, 15 - delta.ToMilliseconds());
} else {
ScheduleTask(mCurrentCompositeTask, 0);
}
}
void Scheduler::operator()()
{
// pull a task off the ready list
if (!m_ReadyList.try_pop(m_CurrentTask)) {
//std::cout <<"Scheduler::Step(), FAILED POP" << std::endl;
m_CurrentTask = nullptr;
// must continue at top of loop, since we don't have a task to process
return;
}
if (m_CurrentTask->getStatus() == TASK_READY)
{
m_CurrentTask->resume();
// check completion status
// if it's still in a ready state,
// put it back on the ready list
if (m_CurrentTask->getStatus() == TASK_READY) {
ScheduleTask(m_CurrentTask);
} else {
//printf("Dropping task: %d\n", m_CurrentTask->getStatus());
}
}
}
//============================================================================
// NThreadPool::Resume : Resume the pool.
//----------------------------------------------------------------------------
void NThreadPool::Resume(void)
{ StLock acquireLock(mLock);
NThreadTaskListIterator theIter;
// Validate our state
NN_ASSERT(mIsPaused);
// Schedule the tasks
//
// The threads are blocked until we release the lock, so any sorting
// of the task list will be deferred until the first thread can run.
for (theIter = mTasksPending.begin(); theIter != mTasksPending.end(); theIter++)
ScheduleTask(*theIter);
// Update our state
mIsPaused = false;
mTasksPending.clear();
}
NS_IMETHODIMP
FileSystemPermissionRequest::Cancel()
{
MOZ_ASSERT(NS_IsMainThread());
mTask->SetError(NS_ERROR_DOM_SECURITY_ERR);
ScheduleTask();
return NS_OK;
}
NS_IMETHODIMP
FileSystemPermissionRequest::Allow(JS::HandleValue aChoices)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(aChoices.isUndefined());
ScheduleTask();
return NS_OK;
}
BST_VOID BST_CTaskSchdler::TimerExpired(
BST_OS_TIMERID_T ulId,
BST_VOID *pvPara)
{
BST_CORE_PTASK_NODE_STRU *pstPtaskNode;
BST_CORE_PTASK_NODE_STRU *pstPtaskNodeNext;
if ( !BST_OS_IsTimerValid (m_ulTimerId) )
{
BST_RLS_LOG1( "BST_CTaskSchdler::TimerExpired m_ulTimerId=%u is invalid",
m_ulTimerId );
return;
}
if ( ulId != m_ulTimerId )
{
BST_RLS_LOG2( "BST_CTaskSchdler::TimerExpired ulId=%u,m_ulTimerId=%u",
ulId, m_ulTimerId );
return;
}
/*
* 如果没有任务，则直接返回，不做任何操作
*/
if ( 0 == lstCount( &g_stPTaskList ) )
{
BST_RLS_LOG( "BST_CTaskSchdler::TimerExpired g_stPTaskList count=0" );
return;
}
/*
* 更新系统TICK值
*/
m_ulSystemTick += BST_TASK_SYS_TICKS;
BST_DBG_LOG1 ( "BST_CTaskSchdler::TimerExpired Scheduler TimeOut, Tick=%d ",
m_ulSystemTick );
/*
* 遍历任务列表，获取任务并进行相应调度
*/
for ( pstPtaskNode = ( BST_CORE_PTASK_NODE_STRU *)lstFirst( &g_stPTaskList );
pstPtaskNode!= BST_NULL_PTR;
pstPtaskNode = pstPtaskNodeNext )
{
pstPtaskNodeNext = ( BST_CORE_PTASK_NODE_STRU *)
lstNext((NODE *)pstPtaskNode);
if ( BST_NULL_PTR == pstPtaskNode->pcTask )
{
continue;
}
/*
* 如果任务不为空，则根据状态进行调度
*/
ScheduleTask ( pstPtaskNode->pcTask );
}
/*
* 再次启动系统TICK定时器
*/
BST_OS_TimerStart ( m_ulTimerId, BST_TASK_SYS_BASE_TIMELEN );
}
//============================================================================
// NThreadPool::AddTask : Add a task to the pool.
//----------------------------------------------------------------------------
void NThreadPool::AddTask(NThreadTask *theTask)
{ StLock acquireLock(mLock);
// Add the task
if (mIsPaused)
mTasksPending.push_back(theTask);
else
ScheduleTask(theTask);
}
void
CompositorParent::ScheduleRotationOnCompositorThread(const TargetConfig& aTargetConfig,
bool aIsFirstPaint)
{
MOZ_ASSERT(IsInCompositorThread());
if (!aIsFirstPaint &&
!mCompositionManager->IsFirstPaint() &&
mCompositionManager->RequiresReorientation(aTargetConfig.orientation())) {
if (mForceCompositionTask != nullptr) {
mForceCompositionTask->Cancel();
}
mForceCompositionTask = NewRunnableMethod(this, &CompositorParent::ForceComposition);
ScheduleTask(mForceCompositionTask, gfxPrefs::OrientationSyncMillis());
}
}
void DefaultScheduler() {
if(LockQuery(SystemLock)) {
Halt("SYSTEM LOCKED SCH");
NullScheduler();
return;
}
if(SystemTasks==NULL) Break("SCHEDULING NO TASK");
if(CurrentTask==NULL) {
CurrentTask=SystemTasks;
} else {
CurrentSP=&(CurrentTask->Value.SP);
//if(CurrentSP==0) Halt("ERRONEOUS STACK POINPOINTER");
//if(*CurrentSP<(void*)0x8000) for(;;); //Halt("ERRONEOUS STACK POINTER");
}
do {
if(CurrentTask->Next==NULL) {
CurrentTask=SystemTasks;
} else {
CurrentTask=CurrentTask->Next;
}
} while(CurrentTask->Value.RegisteredEvents!=EVENT_RUNTASK);
ScheduleTask(&(CurrentTask->Value));
}