--- libelwix/src/ring.c	2025/09/26 10:00:46	1.1.2.3
+++ libelwix/src/ring.c	2025/09/26 10:13:57	1.1.2.4
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: ring.c,v 1.1.2.3 2025/09/26 10:00:46 misho Exp $
+* $Id: ring.c,v 1.1.2.4 2025/09/26 10:13:57 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -163,6 +163,8 @@ rbuf_enqueue(ringbuf_t *rbuf, void *data, size_t len)
 
 	if (!rbuf || !rbuf->rb_buffer)
 		return -1;
+	if (!rbuf->rb_bufnum)
+		return 1;
 
 	h = atomic_load_explicit(&rbuf->rb_head, memory_order_relaxed);
 	t = atomic_load_explicit(&rbuf->rb_tail, memory_order_acquire);
@@ -193,6 +195,8 @@ rbuf_dequeue(ringbuf_t *rbuf, struct iovec *out)
 
 	if (!rbuf || !rbuf->rb_buffer)
 		return -1;
+	if (!rbuf->rb_bufnum)
+		return 1;
 
 	h = atomic_load_explicit(&rbuf->rb_head, memory_order_acquire);
 	t = atomic_load_explicit(&rbuf->rb_tail, memory_order_relaxed);