/**
* The <code>removeNode()</code> method removes a node from this synchronization group, and wakes
* any nodes that might be waiting on it.
*
* @param t the simulator thread to remove from this synchronization group
*/
public synchronized void removeNode(Simulation.Node t) {
// don't try to remove a thread that's not here!
SimulatorThread st = t.getThread();
if (!threadMap.containsKey(st)) return;
synchronized (condition) {
SynchEvent e = (SynchEvent) threadMap.get(st);
e.removed = true; // just in case the thread is still running, don't let it synch
if (e.met) meet_count--;
if (stillWaiting(e.waitSlot)) {
// if this wait slot hasn't happened yet, we need to decrement wait_count
// and to decrement the number of waiters in that slot
e.waitSlot.numWaiters--;
wait_count--;
}
threadMap.remove(e);
goal--;
// signal any other threads (and wake waiters as necessary) but don't wait
signalOthers();
}
}
protected WaitSlot insertWaiter(SynchEvent event, long time) {
// get a wait slot for this waiter
WaitSlot w = getWaitSlot(time);
// now this thread is officially waiting
wait_count++;
// remember the wait slot this waiter is in
event.waitSlot = w;
// increment the number of waiters in this slot
w.numWaiters++;
return w;
}
