Re: [Xenomai-help] native queue and timeout

[Philippe Gerum <rpm@xenomai.org>]

Steven Seeger wrote:
> Hello all. I grabbed svn 3956 and am having a slight problem with 2.6.25.6.
> 
>  
> 
> I spawn a native thread that does the following:
> 
>  
> 
>         int res;
> 
>        
> 
>         printf("reading..\n");
> 
>         res = rt_queue_read(&ql, &level_data, sizeof(unsigned long int),
> TM_INFINITE);
> 
>         printf("done?\n");
> 
>         if(res!=sizeof(unsigned long int)) {
> 
>             rtlog(RTLOG_LEVEL_EMERG, "level thread went wrong. retval
> %d", res);
> 
>             abort();
> 
>         }
> 
>  
> 
> The queue “ql” is bound to successfully. The queue is created in another
> userspace application. My binding code looks like this:
> 
>  
> 
>     if(rt_queue_bind(&ql, "rtlog level", TM_NONBLOCK)) {
> 
>         fprintf(stderr, "failed to bind to rtlog level queue -- is
> rtlogd running?\n");
> 
>         abort();
> 
>     }
> 
>  
> 
> “ql” is: RT_QUEUE ql;
> 
>  
> 
> Now, in the native thread, the call to rt_queue_read always returns with
> -ETIMEDOUT  (-110) which makes no sense because I am passing
> TM_INFINITE. I made sure my include files were up to date.
> 

If running the trunk/, then you need to fully rebuild the Xenomai userland libs
as well; the ABI has changed in that area.

>  
> 
> Any idea?
> 
>  
> 
> Thanks,
> 
> Steven
> 
>  
> 
> 
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> 
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-- 
Philippe.