cvs commit: src/lib/libpthread/thread thr_mutex.c

[Daniel Eischen]

On Sun, 31 Oct 2004, Brian Feldman wrote:

> green       2004-10-31 05:03:50 UTC
>
>   FreeBSD src repository
>
>   Modified files:
>     lib/libpthread/thread thr_mutex.c
>   Log:
>   Make pthread_mutex_trylock(3) return EBUSY on failure, as all software
>   packages expect and seems to be most correct according to the slightly-
>   ambiguous standards.
>
>   MFC after:              1 month
>   Corroborated by:        POSIX <http://tinyurl.com/4uvub>
>   Reviewed by:            silence on threads@

I never saw this, and there has been a couple of long threads about
it.  The current behavior was deemed correct especially since default
mutexes are error check mutexes.  The rationale is that it provides a way
for a thread to tell if it owns the mutex if EDEADLK is returned.

Please back out and sorry for not seeing a posting on -threads.

-- 
Dan Eischen