static int
aio_sigev_alloc(struct aiocb *iocb, struct sigev_node **sn,
struct sigevent *saved_ev)
{
if (__sigev_check_init()) {
/* This might be that thread library is not enabled. */
errno = EINVAL;
return (-1);
}
*sn = __sigev_alloc(SI_ASYNCIO, &iocb->aio_sigevent, NULL, 1);
if (*sn == NULL) {
errno = EAGAIN;
return (-1);
}
*saved_ev = iocb->aio_sigevent;
(*sn)->sn_id = (sigev_id_t)iocb;
__sigev_get_sigevent(*sn, &iocb->aio_sigevent, (*sn)->sn_id);
(*sn)->sn_dispatch = aio_dispatch;
__sigev_list_lock();
__sigev_register(*sn);
__sigev_list_unlock();
return (0);
}
int
__timer_create(clockid_t clockid, struct sigevent *evp, timer_t *timerid)
{
struct __timer *timer;
struct sigevent ev;
struct sigev_node *sn;
int ret, err;
timer = malloc(sizeof(struct __timer));
if (timer == NULL)
return (-1);
if (evp == NULL || evp->sigev_notify != SIGEV_THREAD) {
ret = __sys_ktimer_create(clockid, evp, &timer->oshandle);
if (ret == -1) {
err = errno;
free(timer);
errno = err;
return (ret);
}
timer->node = NULL;
*timerid = timer;
return (0);
}
if (__sigev_check_init()) {
free(timer);
errno = EINVAL;
return (-1);
}
sn = __sigev_alloc(SI_TIMER, evp, NULL, 0);
if (sn == NULL) {
free(timer);
errno = EAGAIN;
return (-1);
}
__sigev_get_sigevent(sn, &ev, sn->sn_gen);
ret = __sys_ktimer_create(clockid, &ev, &timer->oshandle);
if (ret != 0) {
err = errno;
__sigev_free(sn);
free(timer);
errno = err;
return (-1);
}
sn->sn_flags |= SNF_SYNC;
sn->sn_dispatch = timer_dispatch;
sn->sn_id = timer->oshandle;
timer->node = sn;
__sigev_list_lock();
__sigev_register(sn);
__sigev_list_unlock();
*timerid = timer;
return (0);
}
int
__mq_notify(mqd_t mqd, const struct sigevent *evp)
{
struct sigevent ev;
struct sigev_node *sn;
int ret;
if (evp == NULL || evp->sigev_notify != SIGEV_THREAD) {
if (mqd->node != NULL) {
__sigev_list_lock();
__sigev_delete_node(mqd->node);
mqd->node = NULL;
__sigev_list_unlock();
}
return __sys_kmq_notify(mqd->oshandle, evp);
}
if (__sigev_check_init()) {
/*
* Thread library is not enabled.
*/
errno = EINVAL;
return (-1);
}
sn = __sigev_alloc(SI_MESGQ, evp, mqd->node, 1);
if (sn == NULL) {
errno = EAGAIN;
return (-1);
}
sn->sn_id = mqd->oshandle;
sn->sn_dispatch = mq_dispatch;
__sigev_get_sigevent(sn, &ev, sn->sn_gen);
__sigev_list_lock();
if (mqd->node != NULL)
__sigev_delete_node(mqd->node);
mqd->node = sn;
__sigev_register(sn);
ret = __sys_kmq_notify(mqd->oshandle, &ev);
__sigev_list_unlock();
return (ret);
}