void FTimerManager::InternalPauseTimer(FTimerUnifiedDelegate const& InDelegate)
{
// not currently threadsafe
check(IsInGameThread());
int32 TimerIdx;
FTimerData const* TimerToPause = FindTimer(InDelegate, &TimerIdx);
if( TimerToPause && (TimerToPause->Status != ETimerStatus::Paused) )
{
ETimerStatus::Type PreviousStatus = TimerToPause->Status;
// Add to Paused list
int32 NewIndex = PausedTimerList.Add(*TimerToPause);
// Set new status
FTimerData &NewTimer = PausedTimerList[NewIndex];
NewTimer.Status = ETimerStatus::Paused;
// Remove from previous TArray
switch( PreviousStatus )
{
case ETimerStatus::Active :
// Store time remaining in ExpireTime while paused
NewTimer.ExpireTime = NewTimer.ExpireTime - InternalTime;
ActiveTimerHeap.HeapRemoveAt(TimerIdx);
break;
case ETimerStatus::Pending :
PendingTimerList.RemoveAtSwap(TimerIdx);
break;
default : check(false);
}
}
}
void SendRequest() {
requestQueue::iterator it;
if (m_pDoing || m_pReplies) return;
if (m_vsPending.empty()) return;
it = m_vsPending.begin();
if (it->second.empty()) {
m_vsPending.erase(it);
SendRequest();
return;
}
// When we are called from the timer, we need to remove it.
// We can't delete it (segfault on return), thus we
// just stop it. The main loop will delete it.
CTimer* pTimer = FindTimer("RouteTimeout");
if (pTimer) {
pTimer->Stop();
UnlinkTimer(pTimer);
}
AddTimer(
new CRouteTimeout(this, 60, 1, "RouteTimeout",
"Recover from missing / wrong server replies"));
m_pDoing = it->first;
m_pReplies = it->second[0].reply;
m_sLastRequest = it->second[0].sLine;
PutIRC(it->second[0].sLine);
it->second.erase(it->second.begin());
}
void Timers::Execute()
{
timeval curTime;
gettimeofday(&curTime, 0);
for (Timer* s = m_firstTimer; s != 0; s = m_firstTimer)
{
if (CompareTimevals(s->GetNextExecution(), curTime))
break;
TimerCbk_t cbk = s->GetCallback();
void* userdata = s->GetUserdata();
s->Update();
int remainingReps = s->GetRemainingRepetitions();
cbk(userdata);
if (FindTimer(s))
{
DeleteFromList(s);
if (remainingReps == 0)
delete s;
else
InsertTimer(s);
}
}
}
void FTimerManager::InternalClearTimer(FTimerHandle const& InHandle)
{
// not currently threadsafe
check(IsInGameThread());
// Skip if the handle is invalid as it would not be found by FindTimer and unbind the current handler if it also used INDEX_NONE.
if (!InHandle.IsValid())
{
return;
}
int32 TimerIdx;
FTimerData const* const TimerData = FindTimer(InHandle, &TimerIdx);
if (TimerData)
{
InternalClearTimer(TimerIdx, TimerData->Status);
}
else
{
// Edge case. We're currently handling this timer when it got cleared. Unbind it to prevent it firing again
// in case it was scheduled to fire multiple times.
if (CurrentlyExecutingTimer.TimerHandle == InHandle)
{
CurrentlyExecutingTimer.TimerDelegate.Unbind();
CurrentlyExecutingTimer.TimerHandle.Invalidate();
}
}
}
void FTimerManager::InternalClearTimer(FTimerUnifiedDelegate const& InDelegate)
{
// not currently threadsafe
check(IsInGameThread());
int32 TimerIdx;
FTimerData const* const TimerData = FindTimer(InDelegate, &TimerIdx);
if( TimerData )
{
switch( TimerData->Status )
{
case ETimerStatus::Pending : PendingTimerList.RemoveAtSwap(TimerIdx); break;
case ETimerStatus::Active : ActiveTimerHeap.HeapRemoveAt(TimerIdx); break;
case ETimerStatus::Paused : PausedTimerList.RemoveAtSwap(TimerIdx); break;
default : check(false);
}
}
else
{
// Edge case. We're currently handling this timer when it got cleared. Unbind it to prevent it firing again
// in case it was scheduled to fire multiple times.
if (CurrentlyExecutingTimer.TimerDelegate == InDelegate)
{
CurrentlyExecutingTimer.TimerDelegate.Unbind();
}
}
}
int AddTimer( TIMER_TYPE type, timer_handler handler, const char *name, int interval, void *userptr )
{
Timer *timer;
Module *moduleptr;
SET_SEGV_LOCATION();
moduleptr = GET_CUR_MODULE();
if( handler == NULL )
{
nlog( LOG_WARNING, "Module %s timer %s does not exist", moduleptr->info->name, name );
return NS_FAILURE;
}
if( FindTimer( name ) )
{
nlog( LOG_WARNING, "Module %s timer %s already exists. Not adding.", moduleptr->info->name, name );
return NS_FAILURE;
}
timer = new_timer( name );
if( timer )
{
timer->type = type;
timer->interval = interval;
timer->lastrun = me.now;
timer->moduleptr = moduleptr;
timer->handler = handler;
timer->userptr = userptr;
TimerCalcNextRun(timer, NULL);
dlog( DEBUG2, "AddTimer: Module %s added timer %s", moduleptr->info->name, name );
return NS_SUCCESS;
}
return NS_FAILURE;
}
void Timers::Destroy(Timer* timer)
{
if (FindTimer(timer))
{
DeleteFromList(timer);
delete timer;
}
}
void StartAwayNickTimer() {
RemTimer("AwayNickTimer");
if (FindTimer("BackNickTimer")) {
// Client disconnected before we got set back, so do nothing.
RemTimer("BackNickTimer");
return;
}
AddTimer(new CAwayNickTimer(*this));
}
float FTimerManager::InternalGetTimerRate(FTimerUnifiedDelegate const& InDelegate) const
{
FTimerData const* const TimerData = FindTimer(InDelegate);
if (TimerData)
{
return TimerData->Rate;
}
return -1.f;
}
bool CModule::AddTimer(CTimer* pTimer) {
if ((!pTimer) || (FindTimer(pTimer->GetName()))) {
delete pTimer;
return false;
}
if (!m_sTimers.insert(pTimer).second)
// Was already added
return true;
m_pManager->AddCron(pTimer);
return true;
}
bool FDataScannerImpl::FindExistingChunk(const TMap<uint64, TSet<FGuid>>& ChunkLookup, TMap<FGuid, FSHAHash>& ChunkShaHashes, uint64 ChunkHash, const FRollingHash<WindowSize>& RollingHash, FGuid& OutMatchedChunk)
{
FStatsScopedTimer FindTimer(StatFindMatchTime);
bool bFoundChunkMatch = false;
if (ChunkLookup.Contains(ChunkHash))
{
FSHAHash ChunkSha;
RollingHash.GetWindowData().GetShaHash(ChunkSha);
for (FGuid& PotentialMatch : ChunkLookup.FindRef(ChunkHash))
{
// Use sha if we have it
if (ChunkShaHashes.Contains(PotentialMatch))
{
if(ChunkSha == ChunkShaHashes[PotentialMatch])
{
bFoundChunkMatch = true;
OutMatchedChunk = PotentialMatch;
break;
}
}
else
{
// Otherwise compare data
TArray<uint8> SerialBuffer;
FStatsScopedTimer DataMatchTimer(StatDataMatchTime);
FStatsCollector::Accumulate(StatChunkDataChecks, 1);
SerialBuffer.AddUninitialized(WindowSize);
RollingHash.GetWindowData().Serialize(SerialBuffer.GetData());
bool ChunkFound = false;
if (DataMatcher->CompareData(PotentialMatch, ChunkHash, SerialBuffer, ChunkFound))
{
FStatsCollector::Accumulate(StatChunkDataMatches, 1);
ChunkShaHashes.Add(PotentialMatch, ChunkSha);
bFoundChunkMatch = true;
OutMatchedChunk = PotentialMatch;
break;
}
else if(!ChunkFound)
{
FStatsCollector::Accumulate(StatMissingChunks, 1);
}
}
FStatsCollector::Accumulate(StatHashCollisions, 1);
}
}
return bFoundChunkMatch;
}
void Timers::DeleteFromList(Timer* timer)
{
/* Make sure that the timer is in the list */
if (!FindTimer(timer))
return;
/* Unlink the timer */
if (timer->next)
timer->next->prev = timer->prev;
if (timer->prev)
timer->prev->next = timer->next;
if (timer == m_firstTimer)
m_firstTimer = timer->next;
if (timer == m_lastTimer)
m_lastTimer = timer->prev;
}
float FTimerManager::InternalGetTimerElapsed(FTimerUnifiedDelegate const& InDelegate) const
{
FTimerData const* const TimerData = FindTimer(InDelegate);
if (TimerData)
{
if( TimerData->Status != ETimerStatus::Active)
{
// ExpireTime is time remaining for paused timers
return (TimerData->Rate - TimerData->ExpireTime);
}
else
{
return (TimerData->Rate - (TimerData->ExpireTime - InternalTime));
}
}
return -1.f;
}
BOOL FASTCALL
IntKillTimer(PWND Window, UINT_PTR IDEvent, BOOL SystemTimer)
{
PTIMER pTmr = NULL;
TRACE("IntKillTimer Window %x id %p systemtimer %s\n",
Window, IDEvent, SystemTimer ? "TRUE" : "FALSE");
TimerEnterExclusive();
pTmr = FindTimer(Window, IDEvent, SystemTimer ? TMRF_SYSTEM : 0);
if (pTmr)
{
RemoveTimer(pTmr);
}
TimerLeave();
return pTmr ? TRUE : FALSE;
}
UINT_PTR FASTCALL
IntSetTimer( PWND Window,
UINT_PTR IDEvent,
UINT Elapse,
TIMERPROC TimerFunc,
INT Type)
{
PTIMER pTmr;
UINT Ret = IDEvent;
LARGE_INTEGER DueTime;
DueTime.QuadPart = (LONGLONG)(-5000000);
#if 0
/* Windows NT/2k/XP behaviour */
if (Elapse > MAX_ELAPSE_TIME)
{
TRACE("Adjusting uElapse\n");
Elapse = 1;
}
#else
/* Windows XP SP2 and Windows Server 2003 behaviour */
if (Elapse > MAX_ELAPSE_TIME)
{
TRACE("Adjusting uElapse\n");
Elapse = MAX_ELAPSE_TIME;
}
#endif
/* Windows 2k/XP and Windows Server 2003 SP1 behaviour */
if (Elapse < 10)
{
TRACE("Adjusting uElapse\n");
Elapse = 10;
}
/* Passing an IDEvent of 0 and the SetTimer returns 1.
It will create the timer with an ID of 0 */
if ((Window) && (IDEvent == 0))
Ret = 1;
pTmr = FindTimer(Window, IDEvent, Type);
if ((!pTmr) && (Window == NULL) && (!(Type & TMRF_SYSTEM)))
{
IntLockWindowlessTimerBitmap();
IDEvent = RtlFindClearBitsAndSet(&WindowLessTimersBitMap, 1, HintIndex);
if (IDEvent == (UINT_PTR) -1)
{
IntUnlockWindowlessTimerBitmap();
ERR("Unable to find a free window-less timer id\n");
EngSetLastError(ERROR_NO_SYSTEM_RESOURCES);
ASSERT(FALSE);
return 0;
}
IDEvent = NUM_WINDOW_LESS_TIMERS - IDEvent;
Ret = IDEvent;
IntUnlockWindowlessTimerBitmap();
}
if (!pTmr)
{
pTmr = CreateTimer();
if (!pTmr) return 0;
if (Window && (Type & TMRF_TIFROMWND))
pTmr->pti = Window->head.pti->pEThread->Tcb.Win32Thread;
else
{
if (Type & TMRF_RIT)
pTmr->pti = ptiRawInput;
else
pTmr->pti = PsGetCurrentThreadWin32Thread();
}
pTmr->pWnd = Window;
pTmr->cmsCountdown = Elapse;
pTmr->cmsRate = Elapse;
pTmr->pfn = TimerFunc;
pTmr->nID = IDEvent;
pTmr->flags = Type|TMRF_INIT;
}
else
{
pTmr->cmsCountdown = Elapse;
pTmr->cmsRate = Elapse;
}
ASSERT(MasterTimer != NULL);
// Start the timer thread!
if (TimersListHead.Flink == TimersListHead.Blink) // There is only one timer
KeSetTimer(MasterTimer, DueTime, NULL);
return Ret;
}
bool CModule::RemTimer(const CString& sLabel) {
CTimer *pTimer = FindTimer(sLabel);
if (!pTimer)
return false;
return RemTimer(pTimer);
}
void FTimerManager::Tick(float DeltaTime)
{
// @todo, might need to handle long-running case
// (e.g. every X seconds, renormalize to InternalTime = 0)
InternalTime += DeltaTime;
while (ActiveTimerHeap.Num() > 0)
{
FTimerData& Top = ActiveTimerHeap.HeapTop();
if (InternalTime > Top.ExpireTime)
{
// Timer has expired! Fire the delegate, then handle potential looping.
// Remove it from the heap and store it while we're executing
ActiveTimerHeap.HeapPop(CurrentlyExecutingTimer);
// Determine how many times the timer may have elapsed (e.g. for large DeltaTime on a short looping timer)
int32 const CallCount = CurrentlyExecutingTimer.bLoop ?
FMath::Trunc( (InternalTime - CurrentlyExecutingTimer.ExpireTime) / CurrentlyExecutingTimer.Rate ) + 1
: 1;
// Now call the function
for (int32 CallIdx=0; CallIdx<CallCount; ++CallIdx)
{
CurrentlyExecutingTimer.TimerDelegate.Execute();
// If timer was cleared in the delegate execution, don't execute further
if( !CurrentlyExecutingTimer.TimerDelegate.IsBound() )
{
break;
}
}
if( CurrentlyExecutingTimer.bLoop &&
CurrentlyExecutingTimer.TimerDelegate.IsBound() && // did not get cleared during execution
(FindTimer(CurrentlyExecutingTimer.TimerDelegate) == NULL) // did not get manually re-added during execution
)
{
// Put this timer back on the heap
CurrentlyExecutingTimer.ExpireTime += CallCount * CurrentlyExecutingTimer.Rate;
ActiveTimerHeap.HeapPush(CurrentlyExecutingTimer);
}
CurrentlyExecutingTimer.TimerDelegate.Unbind();
}
else
{
// no need to go further down the heap, we can be finished
break;
}
}
// Timer has been ticked.
LastTickedFrame = GFrameCounter;
// If we have any Pending Timers, add them to the Active Queue.
if( PendingTimerList.Num() > 0 )
{
for(int32 Index=0; Index<PendingTimerList.Num(); Index++)
{
FTimerData& TimerToActivate = PendingTimerList[Index];
// Convert from time remaining back to a valid ExpireTime
TimerToActivate.ExpireTime += InternalTime;
TimerToActivate.Status = ETimerStatus::Active;
ActiveTimerHeap.HeapPush( TimerToActivate );
}
PendingTimerList.Empty();
}
}
