From: Richard Cochran <richardcochran@domain.hid>
To: xenomai@xenomai.org
Subject: [Xenomai-help] Using plain old POSIX shm_open with real time threads
Date: Fri, 5 Aug 2011 15:30:06 +0200 [thread overview]
Message-ID: <20110805133006.GA2945@domain.hid> (raw)
Dear xenomai people,
I would like to have a shared ram fifo between a normal Linux program
and a xenomai program that uses the POSIX skin. Can I simply use
__raw_shm_open and __raw_mmap in the xenomai thread, or would there be
some penalty or bad side affect on the RT thread?
I see that the documented way for RT/non-RT IPC is the message
pipe. Perhaps you could comment on the pros/cons of using it, compared
with my shared memory idea.
Thanks,
Richard
next reply other threads:[~2011-08-05 13:30 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-05 13:30 Richard Cochran [this message]
2011-08-05 14:05 ` [Xenomai-help] Using plain old POSIX shm_open with real time threads Gilles Chanteperdrix
2011-08-05 15:58 ` Richard Cochran
2011-08-05 15:39 ` Philippe Gerum
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