Subj : Re: redhat linux standard C library does not have pthread_mutex_trylock ???
To   : comp.programming.threads
From : Joe Seigh
Date : Tue Feb 08 2005 11:44 am

On 8 Feb 2005 08:28:34 -0800, <outsiderjustice@yahoo.com> wrote:

> Thanks Paul, that 'weak-link' thing works!
>
> Just wondering why the standard C library does not provide this
> automatically same as all other pthread functions, is there any
> technical reason?
>
>
Probably because it wasn't meant for general usage.  It's only there
so they could make some library calls thread-safe by wrapping the
function with a lock/unlock pair.  If you assume restricted usage
then you can dummy up part of the pthreads api.  You can't dummy
up all of it.  What do you think pthread_cond_wait is supposed to
do in that case?


-- 
Joe Seigh

Lock-free synchronization primitives
http://atomic-ptr-plus.sourceforge.net/

.