13 Jul
2006
13 Jul
'06
2:13 p.m.
On Wed, 2006-07-12 at 20:54 +0300, Jussi Laako wrote:
Dave Robillard wrote:
Sorry, I /was/ referring to sem_post/sem_wait/etc. I mean havn't tried
any interprocess posix signalling stuff, like named semaphores or
message queues.
Benchmarking message queues against pipes would be interesting, maybe
Jack could benefit if they're faster?
-DR-
realtime thread is pretty sketchy...). Pipes let
you communicate
between processes though - I havn't tried the fancier POSIX interprocess
stuff yet.
What do you mean by semaphore then, if not sem_*()?
sem_post(3)/sem_wait(3) are defined in POSIX realtime extensions (librt
in glibc). I would recommend _NOT_ to mix these semaphores (or shared
memory, or message queues) with anything from SysV which is usually
veeery far from being realtime safe, from implementation point of view.
IF the implementation happens to be the same in Linux, doesn't mean
that's the case in any other POSIX system.