private void ClrSystemTimerHandler(object state)
{
DispatcherQueue.ClrSystemTimerContext clrSystemTimerContext = (DispatcherQueue.ClrSystemTimerContext)state;
try
{
lock (_clrSystemTimerTable)
{
_clrSystemTimerTable.Remove(clrSystemTimerContext.Id);
}
clrSystemTimerContext.Timer.Dispose();
Dispatcher.SetCurrentThreadCausalities(clrSystemTimerContext.CausalityContext);
clrSystemTimerContext.TimerPort.Post(DateTime.Now);
}
catch (Exception exception)
{
Dispatcher.LogError("DispatcherQueue:TimerHandler", exception);
}
}
protected virtual Timer EnqueueTimerUsingClrSystemTimers(TimeSpan timeSpan, Port <DateTime> timerPort)
{
CausalityThreadContext causalityContext = Dispatcher.CloneCausalitiesFromCurrentThread();
if (timeSpan.TotalMilliseconds <= 5.0 && timeSpan.Milliseconds >= 0)
{
timerPort.Post(DateTime.Now);
return(null);
}
timeSpan = TimeSpan.FromSeconds(timeSpan.TotalSeconds * _timescale);
DispatcherQueue.ClrSystemTimerContext clrSystemTimerContext = new DispatcherQueue.ClrSystemTimerContext(timerPort, causalityContext);
Timer timer = new Timer(new TimerCallback(ClrSystemTimerHandler), clrSystemTimerContext, -1, -1);
clrSystemTimerContext.Timer = timer;
lock (_clrSystemTimerTable)
{
_clrSystemTimerTable.Add(clrSystemTimerContext.Id, timer);
}
timer.Change(timeSpan, TimeSpan.FromMilliseconds(-1.0));
return(timer);
}