Re: [Xenomai-help] Problems with Threads and RTnet

["Karl Reichert" <Karl-Trampe@domain.hid>]

> > Karl Reichert wrote:
> > > Hello list,
> > > 
> > > I have some problems with RTnet and threads. I create two thread via
> > rt_task_spawn(), one is sending and one is receiving (non-blocking)
> frames
> > over rtnet.
> > > 
> > > Each task is existed with return (I also tried rt_task_delete()) and
> the
> > main-function is waiting for task-termination via rt_task_join().
> > > 
> > > When I run this program the first time, everything is fine. When I run
> > it a second time without rebooting, I can't receive any more frames
> > (returnvalue -1).
> > > 
> > > So it seems that the termination of the tasks and the main-function
> from
> > the first run failed to free the "RTnet resources", too.
> > > 
> > > Any idea, what I'am doing wrong?
> > 
> > What version of Xenomai are you running ? Do not you get error messages 
> > in the console ?
> > 
> > -- 
> >                                                   Gilles.
> 
> I'm running Xenomai 2.4.3 with Rtnet 0.9.10
> 
> And sorry for the mistake, rt_dev_recv() returns with -110 which means
> "connection timeout". There might be some problems with the socket, but I
> don't have a clue, what's going on.
> 
> I do not get any error messages in console. Neither dmesg nor /var/log/sys
> reports an error.
> 
> Best regards,
> Karl
> 

Forgot to close the socket when program finishes, this is why the second run always failed. Now it works :)

I thought that the socket will be closed automatically when the program exits, as this is the case in POSIX?!
Is there a reason why this is not done in RTnet? Or would there be a possibility to give at least a warning that there are still open sockets, when a program exits? This would prevent others to get the same issues.

Thanks for all your input!
Karl
-- 
von Karl Reichert