[Xenomai-help] thread and posix skin

["Alessio Margan]

Hi,

I've got problem using pthread_make_periodic_np and pthread_wait_np.
Should I make some particular initializations ?
CONFIG_XENO_OPT_TIMING_PERIOD=y have sense ?
In the examples and testsuite I 've just seen the use of clock_nanosleep 
with pthread,
should I use it instead of pthread_make_periodic_np ?

This is the thread routine, I get error on pthread_wait_np() return code 
110.


void * rt_thread(void * arg, rt_thread_hook_t * hook)
{
thread_info_t * th_info = (thread_info_t *)arg;
int ret = 0;
struct timespec starttp, periodtp;
//
if ( hook ) { hook->init(0); }

printf("THREAD INIT: name = %s, period %ld us\n",
th_info->name, th_info->period.period.tv_usec);

ret = pthread_set_name_np(pthread_self(), th_info->name);
if ( ret != 0 ) {
printf("%s : pthread_set_name_np() return code %d\n",
th_info->name, ret);
exit(1);
}

periodtp.tv_sec = 0ULL;
periodtp.tv_nsec = th_info->period.period.tv_usec * 1000ULL;
clock_gettime(CLOCK_REALTIME, &starttp);

starttp.tv_sec += 1ULL;
starttp.tv_nsec += periodtp.tv_nsec;

ret = pthread_make_periodic_np(pthread_self(), &starttp, &periodtp);
if ( ret != 0 ) {
printf("%s : pthread_make_periodic_np() return code %d\n",
th_info->name, ret);
exit(1);
}

while (loop) {

if ( hook ) { hook->loop(0); }

// return 0 if the period expires as expected
ret = pthread_wait_np(NULL);
if ( ret != 0 ) {
printf("%s : pthread_wait_np() return code %d\n", th_info->name, ret);
exit(1);
}

}

//
if ( hook ) { hook->shutdown(0); }

printf("THREAD %s ENDS\n", th_info->name);

return 0;
}


TIA

Alessio


-- 

ISTITUTO ITALIANO
DI TECNOLOGIA

Alessio Margan
/Senior Technician/
mail me <mailto:alessio.margan@domain.hid>

Via Morego, 30 16163 Genova 
<http://maps.google.com/maps?f=q&hl=en&geocode=&q=via+morego,+30+genova&sll=37.0625,-95.677068&sspn=85.420533,191.601563&ie=UTF8&ll=44.474913,8.907037&spn=0.004685,0.011652&t=h&z=17&iwloc=addr>

www.iit.it <http://www.iit.it>

*Legal Disclaimer*
This electronic message contains information that is confidential. The 
information is intended for the use of the addressee only. If you are 
not the addressee we would appreciate your notification in this respect. 
Please note that any disclosure, copy, distribution or use of the 
contents of this message is prohibited and may be unlawful. We have 
taken every reasonable precaution to ensure that any kind of attachment 
to this e-mail has been swept for viruses. However, we cannot accept 
liability for any damage sustained as a result of software viruses and 
would advise you to carry out your own virus checks before opening any 
attachment.
*Avvertenza legale*
Questo messaggio Email contiene informazioni confidenziali riservate ai 
soli destinatari. Qualora veniate in possesso di tali informazioni senza 
essere definito come destinatario vi reghiamo di leggere le seguenti 
note. Ogni apertura, copia, distribuzione del contenuto del messaggio e 
dei suoi allegati è proibito e potrebbe violare le presenti leggi. 
Abbiamo attivato ogni possibile e ragionevole precauzione per assicurare 
che gli allegati non contengano virus. Comunque non assumeremo alcuna 
responsabilità per ogni eventuale danno causato da virus software e 
simili in quanto è onere del destinatario verificarne l’assenza in ogni 
allegato attuando propri indipendenti controlli.