private void TraceItemAdded(object sender, TraceEventArgs e)
{
lstTrace.Invoke(new TraceChanged(AddToTrace), e.ExecutedAction.ToString());
if (e.ExecutedAction.IsDeadlocked) {
if (_visual != null && _chosenAction != null) {
UpdateState();
}
lstCandidateActions.Invoke(new MethodInvoker(lstCandidateActions.Items.Clear));
txtCandidateDescription.Invoke(new MethodInvoker(delegate() { txtCandidateDescription.Text = ""; }));
}
}
/// <summary>
/// Finds all candidate actions for execution, and selects one to
/// execute using the SelectionActionToExecute delegate.
/// </summary>
/// <returns>
/// true if the Scheduler should continue, false if it is
/// deadlocked.
/// </returns>
private bool SelectAndExecuteAction()
{
List <CandidateAction> candidates = FindAllCandidateActions();
if (candidates.Count == 0)
{
return(HandleNoCandidateActions());
}
CandidateAction chosen;
chosen = SelectAction(candidates);
TraceEventArgs traceArgs = new TraceEventArgs()
{
ExecutedAction = chosen
};
Debug("Chose action");
_trace.Add(chosen.ToString());
if (TraceItemAdded != null)
{
TraceItemAdded(this, traceArgs);
}
//Now let them sync with each other if this
//is a synchronous actino
if (chosen.IsSync)
{
chosen.Action1.Sync(chosen.Action2);
chosen.Action2.Sync(chosen.Action1);
}
List <ProcessBase> wakeUp = new List <ProcessBase>();
List <Guid> wakeUpGuids = new List <Guid>();
//if (chosen.Process1 == null) {
// throw new Exception("IS NULL");
//}
chosen.Process1.ChosenAction = chosen.Action1;
wakeUpGuids.Add(chosen.Process1.SetID);
wakeUp.Add(chosen.Process1);
if (!chosen.IsAsync)
{
chosen.Process2.ChosenAction = chosen.Action2;
wakeUp.Add(chosen.Process2);
wakeUpGuids.Add(chosen.Process2.SetID);
}
if (chosen.IsAsync)
{
Debug("Chose async action " + chosen + ", proc " + chosen.Process1 + ".");
}
else
{
Debug("Chose action " + chosen + ", procs " + chosen.Process1 + " and " + chosen.Process2);
}
Logger.TraceDebug(chosen);
Debug("TRACE: " + "\n " + String.Join("\n ", _trace.ToArray()));
foreach (ProcessBase p in _activeProcs)
{
if (!wakeUp.Contains(p) && wakeUpGuids.Contains(p.SetID))
{
p.ChosenAction = null;
wakeUp.Add(p);
}
}
//Finally, wake everyone up that needs to do something
foreach (ProcessBase p in wakeUp)
{
Debug("Waking up " + p);
p.Continue();
}
return(true);
}
/// <summary>
/// Finds all candidate actions for execution, and selects one to
/// execute using the SelectionActionToExecute delegate.
/// </summary>
/// <returns>
/// true if the Scheduler should continue, false if it is
/// deadlocked.
/// </returns>
private bool SelectAndExecuteAction()
{
List<CandidateAction> candidates = FindAllCandidateActions();
if (candidates.Count == 0) {
return HandleNoCandidateActions();
}
CandidateAction chosen;
chosen = SelectAction(candidates);
TraceEventArgs traceArgs = new TraceEventArgs() { ExecutedAction = chosen };
Debug("Chose action");
_trace.Add(chosen.ToString());
if (TraceItemAdded != null) {
TraceItemAdded(this, traceArgs);
}
//Now let them sync with each other if this
//is a synchronous actino
if (chosen.IsSync) {
chosen.Action1.Sync(chosen.Action2);
chosen.Action2.Sync(chosen.Action1);
}
List<ProcessBase> wakeUp = new List<ProcessBase>();
List<Guid> wakeUpGuids = new List<Guid>();
//if (chosen.Process1 == null) {
// throw new Exception("IS NULL");
//}
chosen.Process1.ChosenAction = chosen.Action1;
wakeUpGuids.Add(chosen.Process1.SetID);
wakeUp.Add(chosen.Process1);
if (!chosen.IsAsync) {
chosen.Process2.ChosenAction = chosen.Action2;
wakeUp.Add(chosen.Process2);
wakeUpGuids.Add(chosen.Process2.SetID);
}
if (chosen.IsAsync) {
Debug("Chose async action " + chosen + ", proc " + chosen.Process1 + ".");
} else {
Debug("Chose action " + chosen + ", procs " + chosen.Process1 + " and " + chosen.Process2);
}
Logger.TraceDebug(chosen);
Debug("TRACE: " + "\n " + String.Join("\n ", _trace.ToArray()));
foreach (ProcessBase p in _activeProcs) {
if (!wakeUp.Contains(p) && wakeUpGuids.Contains(p.SetID)) {
p.ChosenAction = null;
wakeUp.Add(p);
}
}
//Finally, wake everyone up that needs to do something
foreach (ProcessBase p in wakeUp) {
Debug("Waking up " + p);
p.Continue();
}
return true;
}