Hans Søndergaard (HSO) wrote:
> I use objects of type:
>
>
>
> typedef struct object {
>
> RT_MUTEX *rt_lock;
>
> ..
>
> } Object;
>
>
>
> int err = rt_mutex_create (ob->rt_lock, NULL);
>
> printf ("[alloc.c]: rt_mutex_create err: %d; #%d \n", err, __LINE__);
>
>
>
> err = rt_mutex_acquire (ob->rt_lock, TM_INFINITE);
>
> printf ("[lock.c]: rt_mutex_acquire, err: %d; #%d \n", err, __LINE__);
>
A question that may look stupid, is ob->rt_lock correctly initialised?
Also, why using a malloc for this, why not doing:
typedef struct object {
RT_MUTEX rt_lock;
/* ... */
} Object;
int err = rt_mutex_create (&ob->rt_lock, NULL);
err = rt_mutex_acquire (&ob->rt_lock, TM_INFINITE);
> On creation, rt_mutex_create returns 0 (as expected).
>
> On acquiring, rt_mutex_acquire returns -3,
>
> but this return value is not included among the possible return values
> in the documentation of Mutex services.
>
>
> Could you please explain what this return value -3 means?
3 is ESRCH, what version of Xenomai are you using?
--
Gilles
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