SIGEV_NONE
if ((ap->aio_sigevent.sigev_notify != SIGEV_NONE) &&
if ((ap->aio_sigevent.sigev_notify != SIGEV_NONE) &&
if ((ap->aio_sigevent.sigev_notify != SIGEV_NONE) &&
(sigevp->sigev_notify != SIGEV_NONE) &&
case SIGEV_NONE: