public AsyncTimerProcessorResult <TArg> RegisterAsync <TArg>(TimeSpan delay)
{
TimerProcessorCallBackRequest request = TimerProcessorCallBackRequest.Add <TArg>(RealTimeSource.GetUtcNow(), delay);
if (Status == TimerProcessorStatus.Disposed)
{
return(request.TrySetDisposed().GetAsyncResult <TArg>());
}
if (Status == TimerProcessorStatus.Disposing)
{
return(request.TrySetCanceled().GetAsyncResult <TArg>());
}
using (Lock.Enter())
{
NullSafeSequencer.PointArg(SeqPointTypeUC.Notify, TimerProcessorSequencer.RegisterStatus, Status);
NullSafeSequencer.PointArg(SeqPointTypeUC.Notify, TimerProcessorSequencer.RegisterActiveProcessing, ActiveProcessing);
if (Status == TimerProcessorStatus.Disposed)
{
return(request.TrySetDisposed().GetAsyncResult <TArg>());
}
if (Status == TimerProcessorStatus.Disposing)
{
return(request.TrySetCanceled().GetAsyncResult <TArg>());
}
Requests.Enqueue(request);
if (ActiveProcessing)
{
return(request.GetAsyncResult <TArg>());
}
}
if (Processing(processActions: false) == ProcessingResult.Processed)
{
return(request.GetAsyncResult <TArg>());
}
using (Lock.Enter())
{
NullSafeSequencer.PointArg(SeqPointTypeUC.Notify, TimerProcessorSequencer.RegisterEnd, Status);
if (Status == TimerProcessorStatus.Disposed)
{
return(request.TrySetDisposed().GetAsyncResult <TArg>());
}
TryUpdateTimer(activate: true);
return(request.GetAsyncResult <TArg>());
}
}
protected virtual void ExclusiveProcessing(bool processActions)
{
NullSafeSequencer.PointArg(SeqPointTypeUC.Match, TimerProcessorSequencer.ExclusiveProcessing, processActions);
TimerProcessorStatus lastStatus;
using (Lock.Enter())
{
ActiveProcessing = true;
NullSafeSequencer.PointArg(SeqPointTypeUC.Match, TimerProcessorSequencer.BeginActiveProcessing, Status);
}
while (true)
{
using (Lock.Enter())
{
lastStatus = Status;
while (Requests.Count > 0 && WorkingRequests.Count < MaxActiveRequests)
{
WorkingRequests.Enqueue(Requests.Dequeue());
}
if (Requests.Count <= 0 && WorkingRequests.Count <= 0)
{
break;
}
}
TimerProcessorCallBackRequest.Processing(lastStatus, WorkingRequests, ExpiryItems);
}
bool processing = processActions && lastStatus != TimerProcessorStatus.Disposed && ExpiryItems.Any();
NullSafeSequencer.PointArg(SeqPointTypeUC.Match, TimerProcessorSequencer.ActionsProcessing, processing);
if (processing)
{
NullSafeSequencer.PointArg(SeqPointTypeUC.Notify, TimerProcessorSequencer.ActionsProcessingCount, ExpiryItems.Count);
ExpiryItems.TryExpire(RealTimeSource.GetUtcNow());
}
while (true)
{
using (Lock.Enter())
{
lastStatus = Status;
while (Requests.Count > 0 && WorkingRequests.Count < MaxActiveRequests)
{
WorkingRequests.Enqueue(Requests.Dequeue());
}
if (Requests.Count <= 0 && WorkingRequests.Count <= 0)
{
break;
}
}
TimerProcessorCallBackRequest.Processing(lastStatus, WorkingRequests, ExpiryItems);
}
using (Lock.Enter())
{
ActiveProcessing = false;
TimerProcessorCallBackRequest.Processing(Status, Requests, ExpiryItems);
if (Status == TimerProcessorStatus.Operating)
{
bool activate = false;
activate |= ExpiryItems.Count > 0;
activate |= Requests.Count > 0;
TryUpdateTimer(activate);
}
else
{
TryUpdateTimer(activate: false);
ExpiryItems.CancelAllAndClear();
Status = TimerProcessorStatus.Disposed;
Ticker.Dispose();
DisposedTCS.TrySetResult(null);
}
NullSafeSequencer.PointArg(SeqPointTypeUC.Match, TimerProcessorSequencer.EndActiveProcessing, Status);
}
}
