__ptr_ring_full
ret = __ptr_ring_full(r);
ret = __ptr_ring_full(r);
ret = __ptr_ring_full(r);
ret = __ptr_ring_full(r);
return __ptr_ring_full(&a->ring);
if (tailcnt == headcnt || __ptr_ring_full(&array))
return (tailcnt == headcnt || __ptr_ring_full(&array));