internal override void End()
{
OnEnd();
var finalState = FinalState;
Debug.Assert(!InFinalState && (FinalStatesMask & finalState) > 0);
// Final state must be assigned before triggering conditions, because they will use it
// to determine whether or not undo the events they control.
SetFinalState(finalState);
//
if (_callbacks != null)
{
// Debug.Assert(_callbacks.Count > 0);
// Assert above is potentially false, since the user may call
// Clear on _callbacks, as it is an ICollection.
foreach (var callback in _callbacks)
{
callback(this as TEv);
}
_callbacks = null;
}
// Following piece of code is optimezed for cases in which an event
// belongs to a single event, which represents the great majority of situations.
if (Conditions != null)
{
Debug.Assert(Conditions.Count > 0);
// Triggers all conditions to which this event belongs.
IParentCondition condition;
if (Conditions.Count == 1 && !(condition = Conditions.First).Succeeded)
{
condition.Trigger(this);
}
else
{
var en = Conditions.GetEnumerator();
while (en.MoveNext())
{
if (!(condition = en.Current).Succeeded)
{
condition.Trigger(this);
}
}
}
Conditions = null;
}
// Following piece of code is optimezed for cases in which an event
// is "yielded" by a single process, which represents the great majority of situations.
if (Subscribers != null)
{
Debug.Assert(Subscribers.Count > 0);
// Reschedules all processes which are not completed yet.
// The "where" clause filters yielders, so that only those processes
// which are still running are picked up for scheduling.
SimProcess subscriber;
if (Subscribers.Count == 1 && (subscriber = Subscribers.First).IsAlive)
{
Env.ScheduleProcess(subscriber);
}
else
{
var en = Subscribers.GetEnumerator();
while (en.MoveNext())
{
if ((subscriber = en.Current).IsAlive)
{
Env.ScheduleProcess(subscriber);
}
}
}
Subscribers = null;
}
}
