Re: Unixware Patch (Was: Re: Beta2 Tag'd and Bundled ...)
Bruce Momjian <pgman@candle.pha.pa.us>
From: Bruce Momjian <pgman@candle.pha.pa.us>
To: ohp@pyrenet.fr
Cc: pgsql-hackers@postgresql.org
Date: 2003-09-03T19:36:53Z
Lists: pgsql-hackers
Attachments
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ohp@pyrenet.fr wrote: > > Olivier PRENANT wrote: > > > >> It's ok to assume thread-safety, as the SCO developer (Kean Johnston) > > > >> asked the threads guys, and he said that the libc stuff is > > > >> thread-safe so they don't have to have 2 different versions in libc. > > > > > > > If any one can write a program that can prove anything (I can't), I'm > > > willing to test it here on a bi-pro (bi PIII and bi-XEON with JT > > > enabled) running uw713. > > > Maybe it will end the discussion and make a point in either way. So that > > > we (you?) can move on with the other unixware patches. > > > > You don't need a SMP machine to test threads. You just need one thread > > to do the function call, then another to do the function call and see if > > the two pointers are different. They calls don't have to happen at the > > same time. Ideally you could make call in the two threads with > > different arguments, then after both calls are completed, test that the > > two static areas have the proper _different_ values. > > > > > Ok, I don't know much about threads; would you write a simple program for > us to test? OK, done, and attached. It is also now in CVS as src/tools/test_thread_funcs.c. In hindsight, I should have done this long ago. However, it only tests the thread-safety of functions. It does not completely test your threading capability. I would like every operating system that supports thread-safety to run this program and report back the results. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073