internal virtual void Start(TellerPool tellerPool)
{
TellerRequest tr = new TellerRequest();
tellerPool.Acquire(tr, true); // Blocks until a teller is acquired.
Teller teller = (Teller)tr.ResourceObtained;
teller.DoService(this); // Blocks while the teller is servicing me.
// Service is done.
tr.Release();
}
