Re: [Xenomai-help] What returns rt_task_self in relation to rt_task_create

[Philippe Gerum <rpm@xenomai.org>]

On Wed, 2006-11-22 at 15:03 +0100, Gilles Chanteperdrix wrote:
> Philippe Gerum wrote:
> > On Wed, 2006-11-22 at 14:14 +0100, Jan Kiszka wrote:
> > We could add that, and the same stuff upon return from the task body
> > inside the trampoline call, but the only way to solve this with no leak
> > would be to call the nucleus at each invocation, and not use any cached
> > descriptor here. Since TLS requires to be operated by the owning task,
> > there is no point in trying to have a deleted task clean those up
> > thoroughly.
> > 
> 
> When creating a TLS key, you can specify a cleanup function that get
> called when a thread exits (or is canceled).
> 

Actually, there are spots where the nucleus forces do_exit() over the
caller, and specifically, when we zap a shadow from the Xenomai context,
then perform a tail scheduling for this zombie over the incoming Linux
context. In such situation, the user-space would not even be informed of
what's been going on, so the cleanup routine would be useless.

-- 
Philippe.