And the original ipc modules works in 2.0 -- in uniprocessors.
Further, there is a light mutex to be in 2.1
On Sat, Dec 18, 1999 at 12:41:18PM +0000, Stuart Hughes wrote:
> Hi Christian,
>
> The original ipc module does not work in RTL2 as far as I know.
> However, I recently posted a portable version of the newfifos package
> found in RTAI (which also works on RTL V2), this provides a number of
> IPC services including mailboxes and semaphore. From the README.FIFOS:
>
> The semaphore services available are:
> - rtf_sem_init(fd, init_val);
> - rtf_sem_wait(fd);
> - rtf_sem_trywait(fd);
> - rtf_sem_timed_wait(fd, ms_delay);
> - rtf_sem_post(fd);
> - rtf_sem_destroy(fd);
>
> I think my original posting was lost while the rtl list was down last
> week, but the package can be found at http://www.realtimelinux.org/ if
> you follow the links to CRAN it is in the subdirectory called software,
> the file is called:
>
> rtai_rtl_fifos-03.tgz
>
> Regards, Stuart
>
>
> Christian Kramer wrote:
> >
> > Hi!
> >
> > I would like to use semaphores in my realtime-thread, but the
> > semaphore-functionality seems only to be given in RTL Version 1.
> >
> > Does the rt_ipc module work in RTL 2 (without stepping back to RTL 1),
> > or is there another way to use semaphores?
> >
> > Thank you very much,
> >
> > Christian
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