Subj : Re: Semaphores and pthreads
To   : comp.programming.threads
From : Markus Elfring
Date : Mon Jan 10 2005 10:19 pm

> As prev poster said - never mix sema with mutexes, unless you must :).
> Sema are good for their async safety but this is probably not of
> interest if you are threads newbie. Just keep them in mind, everyone
> needs them sometimes :). As their man page says: "This is the only
> thread synchronization  function  provided  by POSIX threads that is
> async-signal safe." (This is from SEMAPHORES(3) manpage on Linux).

More background informations ...
pthread_cond_wait() versus sem_wait()
http://groups.google.de/groups?threadm=336DB34B.63DA%40zko.dec.com

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