internal StateMachineSubscription Dequeue()
{
StateMachineSubscription subscription = this.EventQueue[0];
this.EventQueue.RemoveAt(0);
return(subscription);
}
internal void Enqueue(ActivityExecutionContext context, IComparable queueName)
{
StateMachineSubscription item = this.GetSubscription(queueName);
if (item != null)
{
this.EventQueue.Add(item);
}
this.ProcessQueue(context);
}
internal void Enqueue(ActivityExecutionContext context, Guid subscriptionId)
{
StateMachineSubscription item = this.GetSubscription(subscriptionId);
if (item != null)
{
this.EventQueue.Add(item);
}
this.ProcessQueue(context);
}
internal void Enqueue(ActivityExecutionContext context, IComparable queueName)
{
StateMachineSubscription subscription = GetSubscription(queueName);
if (subscription != null)
{
// subscription can be null if we already unsubscribed to
// this event
this.EventQueue.Add(subscription);
}
ProcessQueue(context);
}
internal void ProcessQueue(ActivityExecutionContext context)
{
StateActivity currentState = StateMachineHelpers.GetCurrentState(context);
if (this.EventQueue.Count == 0 ||
this.ExecutionState.HasEnqueuedActions ||
this.ExecutionState.SchedulerBusy ||
currentState == null)
{
return;
}
StateMachineSubscription subscription = Dequeue();
subscription.ProcessEvent(context);
}
