On 13 Jan 97  08:55:43, Andrew Grillet scribed in letters of flame on the
boiling sky:
 AG> I understood that DosEnterCritSec was just another name for
 AG> disable_interrupts. 
 AG> Is that not the case?

Agh! No! It stops switches to other threads *in that process*.
Threads in other processes in the system run without
interruption. (In fact they may run *faster* if you're doing
something hefty in one of the threads blocked by DosEnterCritSec().)

That said, it's an ugly hack because it stops *all* threads in
the process, whether or not they are, or even could be doing
anything related to the resource problem causing the critical
section.

And it can't cope with concurrency/contention problems on, for
example, a shared memory buffer.

... Reality is for people who cannot cope with SF.
--- Blue Wave/Max v2.30 [NR]