System V semaphores and ipc?

[Joel Sherrill]

Amalaye Oyake wrote:
>
> Does RTEMS support UNIX System V semaphores and ipc?
>
> Specifically I am looking for:
>
> sys/ipc.h - interprocess communication access structure
>
> sys/msg.h - message queue structures
>
> Now I know that RTEMS is not UNIX, but do these headers exist in some 
> form? I see some stuff like sys/types.h - data types … if they do not 
> I shall use the POSIX mapping.
>
RTEMS supports POSIX message queues and semaphores.

It does NOT support any of the shm* or mmap related calls. In addition, you
can't fork a process. :)

In general, the first place to look for concurrency calls is 
cpukit/posix/src. File access
and libc code is generally divided between libcsupport and newlib.

--joel

--joel
>
> Sincerely
>
> * Amalaye Oyake *
>
> * Flight Software Applications & Data Product Mgmt */\
>
> * 818.393.7168 work 818.653.4748 cell *||
>
> * Jet Propulsion Laboratory, Pasadena CA 91109 */||\
>
> @@@ personal opinions expressed represent only the views of the author @@@
>
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