Re: AW: [Xenomai-help] delete queues "offline"; /proc/stat

[Jan Kiszka <jan.kiszka@domain.hid>]

[-- Attachment #1: Type: text/plain, Size: 1657 bytes --]

Gilles Chanteperdrix wrote:
> Roderik_Wildenburg@domain.hid wrote:
>  > > > when a xenomai-task crashs which created some queues 
>  > > > (rt_queue_create) 
>  > > > and I try to restart the task the creation of the queues 
>  > > > will fail as 
>  > > > the queue still exists (error EEXIST == 17). Is there a 
>  > > > possibility to 
>  > > > see which queues exist (I did not find a hint in the /proc/xenomai
>  > > > directory) and to get rid of these queues (or geneally 
>  > > > spoken : to get 
>  > > > rid of allocated resources) e.g. with a commandline tool ?
>  > 
>  > > 
>  > > Native or posix skin? Gilles added per-process resource 
>  > > cleanup to the posix skin in 2.2-rc3.
>  > >
>  > 
>  > following Murphys law, I, of course, use native skin where this mechanism isn?t 
>  > implemented yet ;-)
>  > What does "per-process resource cleanup" mean ? 
>  > When the process/thread is killed the queues and other resources of this 
>  > process/thread are deleted automaticaly ?
> 
> Yes, all resources specific to a process are deleted automatically, so,
> any message queue descriptor or shared memory descriptor is
> closed. Named objects are not deleted though, since they may be shared
> between several processes, only non-pshared anonymous objects and named
> objects *descriptors* are deleted. This is the only reasonable
> implementation I could find.

What about a usage counter maintained on creation/binding vs.
closing/destruction? I would prefer to get them cleaned up automatically
as well somehow, or we really need tool support for IPC cleanup, and
that is ugly in my eyes.

Jan


[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 250 bytes --]