[ns] Incorrect event handling at ns scheduler stop?

[Thomas Kaemer <Thomas.Kaemer@eas.iis.fhg.de>]

Hello!

I have a question about the event queue. I'm afraid an event is lost
everytime the scheduler is stopped. If I understand the source code 
correctly, there is a scheduler bug.

scheduler.cc:

| void
| Scheduler::run()
| {
|       instance_ = this;
|       Event *p;
|       while ((p = deque()) && !halted_) {
|               dispatch(p);
|       }
| }


In the while loop header the next event is taken (p = deque()) 
and then the halted_ variable is checked. If halted_ is equal 
to 1 the scheduler stops its work and the dequeued event is not 
handled.

Is my conclusion correct and can I exchange both expressions 
in the while header without other side effects?


Yours sincerely
                 Kaemer