From: Jan Kiszka <jan.kiszka@domain.hid>
To: Kent Borg <kentborg@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] Shared Memory?
Date: Wed, 21 Dec 2005 00:48:17 +0100 [thread overview]
Message-ID: <43A89841.1070407@domain.hid> (raw)
In-Reply-To: <20051220183927.T16178@domain.hid>
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Kent Borg wrote:
> Looking at the Xenomai documentation, I can't see how to do shared
> memory communication between a realtime and non-realtime userland
> task. Do I just use regular Linux shared memory, but somehow lock it
> down?
>
Use mixed RT/non-RT threads and you will have shared mem for free, use
processes and you only have to ask linux for some shared fragments. In
any case don't forget to mlockall() your RT-processes!
Jan
PS: You only need "special" Xenomai services for allocating mem when you
want to shared it between kernel and user land.
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next prev parent reply other threads:[~2005-12-20 23:48 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-20 23:39 [Xenomai-help] Shared Memory? Kent Borg
2005-12-20 23:48 ` Jan Kiszka [this message]
2005-12-20 23:52 ` Kent Borg
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