I've held off on chiming in on this, mostly because I can only speculate at this point (and partly because this is probably the wrong list for this discussion). :-)
There is a race condition documented in the comments in the condition variable code. I followed it through and at one point was pretty convinced this is the root cause. I believe this race condition should eventually be resolved, and would like to help out (still working out the legal details). :-( What I don't know yet is how much impact this would have on Rob's code, thread performance, etc. The services you'd LIKE to use aren't available to all Windows versions, so you may have to add a thread or something similar. Anyway, once the new thread code and Python are available, I figured I'd at least try it out with threaded Python. Even a seemingly-unrelated change might eliminate the failure if it changes the timing. Simply undefing _POSIX_SEMAPHORES will enable the old code, so it's easy to try. -Jerry -O Gerald S. Williams, 55A-134A-E : mailto:[EMAIL PROTECTED] O- -O AGERE SYSTEMS, 6755 SNOWDRIFT RD : office:610-712-8661 O- -O ALLENTOWN, PA, USA 18106-9353 : mobile:908-672-7592 O- > -----Original Message----- > From: Jason Tishler [mailto:[EMAIL PROTECTED]] > Sent: Friday, April 19, 2002 7:49 AM > To: Robert Collins > Cc: [EMAIL PROTECTED] > Subject: Re: [PATCH] minor pthread fixes > > > Rob, > > On Fri, Apr 19, 2002 at 09:37:04PM +1000, Robert Collins wrote: > > From memory - no. Alsothe symptoms are wrong - the test hangs, not > > prematurely exiting. Anyway, it shouldn't be too hard to build a test > > .dll and give it a try. If you want I can shoot such a beast over to > > you. > > No, that's OK. Thanks to Gerald Williams' related Python patch this > issue has been obviated. I was just trying to finally put this Cygwin > pthreads problem to bed... > > Jason >
