/// <summary>
/// Gets permission from the step to transition to run.
/// </summary>
/// <param name="myPfcec">My pfcec.</param>
/// <param name="ssm">The StepStateMachine that will govern this run.</param>
public virtual void GetPermissionToStart(PfcExecutionContext myPfcec, StepStateMachine ssm)
{
IExecutive exec = myPfcec.Model.Executive;
Debug.Assert(exec.CurrentEventType == ExecEventType.Detachable);
if (EarliestStart != null && EarliestStart > exec.Now)
{
exec.CurrentEventController.SuspendUntil(EarliestStart.Value);
}
m_precondition?.Invoke(myPfcec, ssm);
}
protected void GetPermissionToStart(PfcExecutionContext myPfcec, StepStateMachine ssm)
{
PfcExecutionContext root = myPfcec;
int ascents = m_rootHeight;
while (ascents > 0)
{
root = (PfcExecutionContext)myPfcec.Parent.Payload;
ascents--;
}
Exchange exchange = null;
if (m_myIndex == 0)
{
//Console.WriteLine(myPfcec.Name + " is creating an exchange and injecting it into pfcec " + root.Name + " under key " + m_sequenceKey);
exchange = new Exchange(myPfcec.Model.Executive);
root.Add(m_sequenceKey, exchange);
}
else
{
//Console.WriteLine(myPfcec.Name + " is looking for an exchange in pfcec " + root.Name + " under key " + m_sequenceKey);
DictionaryChange dc = new DictionaryChange(myPfcec_EntryAdded);
while (true)
{
exchange = (Exchange)root[m_sequenceKey];
if (exchange == null)
{
root.EntryAdded += dc;
m_idec = myPfcec.Model.Executive.CurrentEventController;
m_idec.Suspend();
}
else
{
root.EntryAdded -= dc;
break;
}
}
exchange.Take(m_myKey, true); // Only indices 1,2, ... take (and wait?). Index 0 only posts.
//Console.WriteLine(myPfcec.Name + " got the key I was looking for!");
}
Guid nextGuysKey = GuidOps.Increment(m_myKey);
exchange.Post(nextGuysKey, nextGuysKey, false);
//Console.WriteLine(myPfcec.Name + " posted the key the next guy is looking for!");
}
public override void Run(PfcExecutionContext pfcec, StepStateMachine ssm)
{
IExecutive exec = Model.Executive;
exec.CurrentEventController.SuspendUntil(exec.Now + m_tsd.GetNext());
}
public override void GetPermissionToStart(PfcExecutionContext myPfcec, StepStateMachine ssm)
{
}
