From mboxrd@z Thu Jan  1 00:00:00 1970
Date: Thu, 3 Jun 2010 10:35:50 -0400
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From: Andreas Glatz <andreasglatz@domain.hid>
Subject: Re: [Xenomai-core] rt_pipe_open / rt_pipe_delete bug
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To: stephane ancelot <sancelot@domain.hid>
Cc: "xenomai@xenomai.org" <xenomai@xenomai.org>

On Thu, Jun 03, 2010 at 04:09:38AM -0400, stephane ancelot wrote:
> Hi,
> 
> tryied in v2.4.10 :
> 
> 
> I have opened a /dev/rtp7 pipe , and deleted it.
> 
> if I launch again the same program, rt_pipe_open replies with -EBUSY ....
> 

Can you describe the sequence how you are invoking rt_pipe_open()/open()/rt_pipe_delete()?

If the following description applies to you then you discovered what we've discovered
before and there is no easy fix for that as far as I know.

1) create pipe with rt_pipe_open()
2) connect to it by opening /dev/rtp7 with open()
3) delete pipe with rt_pipe_delete() (for example by killing the Xenomai application)
4) create same pipe again with rt_pipe_open() (for example by restarting the
   Xenomai application with /dev/rtp7 is still open)

--> rt_pipe_open() reports an error

Andreas