static int
aio_io(struct aiocb *iocb, int (*sysfunc)(struct aiocb *iocb))
{
struct sigev_node *sn;
struct sigevent saved_ev;
int ret, err;
if (iocb->aio_sigevent.sigev_notify != SIGEV_THREAD) {
ret = sysfunc(iocb);
return (ret);
}
ret = aio_sigev_alloc(iocb, &sn, &saved_ev);
if (ret)
return (ret);
ret = sysfunc(iocb);
iocb->aio_sigevent = saved_ev;
if (ret != 0) {
err = errno;
__sigev_list_lock();
__sigev_delete_node(sn);
__sigev_list_unlock();
errno = err;
}
return (ret);
}
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);
}
int
__mq_close(mqd_t mqd)
{
int h;
if (mqd->node != NULL) {
__sigev_list_lock();
__sigev_delete_node(mqd->node);
__sigev_list_unlock();
}
h = mqd->oshandle;
free(mqd);
return (__sys_close(h));
}
int
__timer_delete(timer_t timerid)
{
int ret, err;
if (timerid->node != NULL) {
__sigev_list_lock();
__sigev_delete_node(timerid->node);
__sigev_list_unlock();
}
ret = __sys_ktimer_delete(timerid->oshandle);
err = errno;
free(timerid);
errno = err;
return (ret);
}
int
__aio_fsync(int op, struct aiocb *iocb)
{
struct sigev_node *sn;
struct sigevent saved_ev;
int ret, err;
if (iocb->aio_sigevent.sigev_notify != SIGEV_THREAD)
return __sys_aio_fsync(op, iocb);
ret = aio_sigev_alloc(iocb, &sn, &saved_ev);
if (ret)
return (ret);
ret = __sys_aio_fsync(op, iocb);
iocb->aio_sigevent = saved_ev;
if (ret != 0) {
err = errno;
__sigev_list_lock();
__sigev_delete_node(sn);
__sigev_list_unlock();
errno = err;
}
return (ret);
}
