PF> to call it as few times as possible,  and get as many bytes back with
 PF> each call (this is why "Wait for something" read timeout processing
 PF> is so cool).

 JS> I'am able to react on a terminate flag. Or is it 
 JS> possible to close the serial device (or Socket) with an 
 JS> external Program (I wasn't successful when it tried 
 JS> this) ?

You can do a shutdown(socket,2) from another thread, and the thread
blocked on a recv() or send() (<--unlikely) will drop out of it.  Works
just fine here.


--- Maximus/2 2.02