* [Xenomai-help] InterProcessCommunication between Xenomai task and Linux process
@ 2006-10-27 9:24 Roderik_Wildenburg
2006-10-27 12:51 ` Gilles Chanteperdrix
0 siblings, 1 reply; 2+ messages in thread
From: Roderik_Wildenburg @ 2006-10-27 9:24 UTC (permalink / raw)
To: xenomai
Is there a standard way for communication between nativ Linux processes
and Xenomai task which ensures that the Xenomai task does not lose its
raltime capability (e.g. can I use Xenomai (Posix)-queues within Linux
processes ?).
I just need a hint, where I can read about it.
Thanks in advance
Roderik
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [Xenomai-help] InterProcessCommunication between Xenomai task and Linux process
2006-10-27 9:24 [Xenomai-help] InterProcessCommunication between Xenomai task and Linux process Roderik_Wildenburg
@ 2006-10-27 12:51 ` Gilles Chanteperdrix
0 siblings, 0 replies; 2+ messages in thread
From: Gilles Chanteperdrix @ 2006-10-27 12:51 UTC (permalink / raw)
To: Roderik_Wildenburg; +Cc: xenomai
Roderik_Wildenburg@domain.hid wrote:
> Is there a standard way for communication between nativ Linux processes
> and Xenomai task which ensures that the Xenomai task does not lose its
> raltime capability (e.g. can I use Xenomai (Posix)-queues within Linux
> processes ?).
> I just need a hint, where I can read about it.
Xenomai POSIX messages queues can only be used by Xenomai tasks, but
Xenomai tasks do not switch to secondary mode when using POSIX messages
queues. Note that when using the POSIX skin, all tasks are Xenomai
tasks, the SCHED_OTHER policy being reserved to non-realtime task.
Another solution is to use the native skin message pipe services,
described here:
http://www.xenomai.org/documentation/trunk/html/api/group__pipe.html
--
Gilles Chanteperdrix
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2006-10-27 9:24 [Xenomai-help] InterProcessCommunication between Xenomai task and Linux process Roderik_Wildenburg
2006-10-27 12:51 ` Gilles Chanteperdrix
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