int start_waiter_thread (struct multipath *mpp, struct vectors *vecs)
{
struct event_thread *wp;
if (!mpp)
return 0;
wp = alloc_waiter();
if (!wp)
goto out;
mpp->waiter = (void *)wp;
strncpy(wp->mapname, mpp->alias, WWID_SIZE);
wp->vecs = vecs;
wp->mpp = mpp;
if (pthread_create(&wp->thread, &waiter_attr, waitevent, wp)) {
condlog(0, "%s: cannot create event checker", wp->mapname);
goto out1;
}
condlog(2, "%s: event checker started", wp->mapname);
return 0;
out1:
free_waiter(wp);
mpp->waiter = NULL;
out:
condlog(0, "failed to start waiter thread");
return 1;
}
void *waitevent (void *et)
{
int r;
struct event_thread *waiter;
mlockall(MCL_CURRENT | MCL_FUTURE);
waiter = (struct event_thread *)et;
pthread_cleanup_push(signal_waiter, et);
block_signal(SIGUSR1, NULL);
block_signal(SIGHUP, NULL);
while (1) {
r = waiteventloop(waiter);
if (r < 0)
break;
sleep(r);
}
pthread_cleanup_pop(1);
free_waiter(waiter);
return NULL;
}
