how to wait for a thread until it stopped

9 Aug 2005

      Hi there, I'm still working on the transistion from an old thread lib
to the boost thread lib.

I have two threads, the GUI thread and a worker thread. The worker
thread is always inside a loop that only breaks if someone set the
flag.

The GUI thread has from time to time to stop the worker thread. This
is currently done by setting a flag ( _bStop ) and the worker thread
will eventually stop like:

void run()
{
   boost::mutex::scoped_lock oLock( _oRunMutex );

   do
   {
      ...

      if( _bStop  )
         _oRunCondition.wait( oLock );

   } while( _bTerminate == false );
}

I believe that this implemention can lead to deadlocks. But how can I
implement the behavior that the GUI thread will break until the worker
thread has stopped.

Thanks,
Christian

Christian Henning