DAB>   Well, I have used DosEnterCritSec when I had to call a time-critical
 DAB> communications routine in order to prevent timeouts 
 DAB> (Communicating with weird PLC's).
 DAB>   I needed to be sure that when I went into that 
 DAB> routine, everything else
 DAB> stopped until it was completed.  It WAS designed to 
 DAB> be as quick as possible.
 DAB>   I don't think I'm being lazy... I just wanted to 
 DAB> point out that I think
 DAB> that there are legitimate uses for DosEnterCritSec.


I don't think that is a legitimate use,  because it is working around a
design flaw in the program (you have free-running polling loops in the
other threads).

I have written a lot of real time communication code under OS/2.  I have
never had to use a critsec,  or even the "time critical" priority
class.

Pete's first thread axiom:  A thread's most important job is to do
                            nothing very well.


--- Maximus/2 3.00