From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 5 Aug 2011 15:30:06 +0200 From: Richard Cochran Message-ID: <20110805133006.GA2945@domain.hid> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Subject: [Xenomai-help] Using plain old POSIX shm_open with real time threads List-Id: Help regarding installation and common use of Xenomai List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: xenomai@xenomai.org 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