From: | Larry Rosenman <ler(at)lerctr(dot)org> |
---|---|
To: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>, ohp(at)pyrenet(dot)fr |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Unixware Patch (Was: Re: Beta2 Tag'd and Bundled ...) |
Date: | 2003-09-03 19:53:39 |
Message-ID: | 329890000.1062618819@lerlaptop.iadfw.net |
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Thread: | |
Lists: | pgsql-hackers |
>From UnixWare:
$ cc -O -Kpthread test_thread.c -o test_thread -lsocket -lnsl
UX:acomp: WARNING: "test_thread.c", line 60: argument #3 incompatible with
prototype: pthread_create()
UX:acomp: WARNING: "test_thread.c", line 61: argument #3 incompatible with
prototype: pthread_create()
$ ./test_thread
Your functions are all thread-safe
$
--On Wednesday, September 03, 2003 15:36:53 -0400 Bruce Momjian
<pgman(at)candle(dot)pha(dot)pa(dot)us> wrote:
> ohp(at)pyrenet(dot)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.
--
Larry Rosenman http://www.lerctr.org/~ler
Phone: +1 972-414-9812 E-Mail: ler(at)lerctr(dot)org
US Mail: 1905 Steamboat Springs Drive, Garland, TX 75044-6749
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