private void _TryToPullServiceObject(IExecutive exec, object obj)
{
if (m_input.Connector == null)
{
return;
}
object serviceObject = m_input.OwnerPeek(null);
if (serviceObject == null)
{
return;
}
lock (this){
if (m_pending)
{
return;
}
if (RequiresAsyncEvents)
{
m_pending = true;
}
}
if (OnCanWeProcessServiceObject(this, serviceObject))
{
serviceObject = m_input.OwnerTake(null);
OnPreCommencementSetup(this, serviceObject);
m_pending = false;
Process(serviceObject);
}
}
private void TryToCommenceService()
{
if (m_input.Connector == null)
{
return;
}
object nextServiceObject = m_input.OwnerTake(null);
if (nextServiceObject != null)
{
Process(nextServiceObject);
}
}
private object OnDataRequested(IOutputPort op, object selector)
{
Debug.Write(Name + " was just asked for data by ");
if (Out.Peer != null)
{
Debug.WriteLine(((IHasName)Out.Peer.Owner).Name);
}
else
{
Debug.WriteLine("some non-connected element.");
}
if (m_in.Peer != null)
{
Debug.WriteLine("I will ask " + ((IHasName)In.Peer.Owner).Name + "...");
return(m_in.OwnerTake(null));
}
else
{
string data = RandomString();
Debug.WriteLine("Since I have no predecessor, I'll make up some data. How about " + data + "...");
return(data);
}
}
private object OnDataPullOut(IOutputPort op, object selector)
{
return(m_input.OwnerTake(selector));
} // Forces an upstream read.
