mqueue_get
error = mqueue_get(curthread->td_lwp, uap->mqdes, &fp);
error = mqueue_get(curthread->td_lwp, uap->mqdes, &fp);
error = mqueue_get(l, mqdes, &fp);
error = mqueue_get(l, mqdes, &fp);
error = mqueue_get(curthread->td_lwp, uap->mqdes, &fp);