protected void Callback(DateTime now)
{
var boundary = TimerCall.At(now);
SortedSet <TimerCall> toCall;
// get all calls scheduler before infinity and now remove
// them once from the set of awaiting calls then try to
// advance them and scheduler for a next call
lock (syncLock)
{
toCall = this.calls.GetViewBetween(TimerCall.Min, boundary);
this.calls.ExceptWith(toCall);
foreach (var call in toCall)
{
if (call.TryAdvance())
{
this.calls.Add(call);
}
}
}
foreach (var call in toCall)
{
try
{
call.Call();
}
catch (Exception cause)
{
var failure = new TimerFailure(now, cause, call.Call);
this.OnError?.Invoke(this, failure);
}
}
}
private IDisposable Schedule(Action action, TimeSpan delay, TimeSpan?interval = null)
{
if (disposed)
{
throw new ObjectDisposedException("Timer has been disposed");
}
var timerCall = new TimerCall(action, DateTime.UtcNow + delay, interval);
lock (syncLock)
{
this.calls.Add(timerCall);
}
return(new TimerDisposer(this, timerCall));
}
public TimerDisposer(AbstractTimer timer, TimerCall call)
{
this.timer = timer;
this.call = call;
}
