public void ProgressTime(TimeSpan timespan, IScheduler scheduler)
{
foreach (KeyValuePair <Guid, LinkedList <SchedulerEventItem> > schedulable in _delayedEvents)
{
TimeSpan span = timespan;
LinkedList <SchedulerEventItem> timeline = schedulable.Value;
while (timeline.First != null && span >= TimeSpan.Zero)
{
SchedulerEventItem item = timeline.First.Value;
item.TimeSpan -= span;
span = -item.TimeSpan;
if (item.TimeSpan <= TimeSpan.Zero)
{
scheduler.ScheduleDeltaEvent(item.Subject, item.Value);
timeline.RemoveFirst();
}
}
}
}
/// <returns>
/// The simulated time.
/// TimeSpan.Zero if no time progress was achieved due to delta events.
/// TimeSpan.MinValue if no events were available.
/// </returns>
private TimeSpan RunSignalAssignmentPhase(bool progressTime)
{
_phase = SchedulerPhase.SignalAssignment;
TimeSpan simulatedTime = TimeSpan.Zero;
while (progressTime && _deltaEvents.Count == 0)
{
TimeSpan timespan;
if (_timeline.TryNextEventTime(out timespan))
{
_schedule.ProgressTime(timespan, this);
OnSimulationTimeProgress(timespan);
simulatedTime += timespan;
}
else
{
_phase = SchedulerPhase.Idle;
return(TimeSpan.MinValue);
// TODO: check, why MinValue?
}
}
while (_deltaEvents.Count > 0)
{
SchedulerEventItem item = _deltaEvents.Pop();
ISchedulable subject = item.Subject;
if (subject.CurrentValue == null || !subject.CurrentValue.Equals(item.Value))
{
item.Subject.CurrentValue = item.Value;
_schedulablesWithEvent.Add(item.Subject);
}
}
_phase = SchedulerPhase.Idle;
return(simulatedTime);
}