--- libelwix/inc/elwix/Attic/aring.h	2025/09/26 08:58:05	1.1
+++ libelwix/inc/elwix/Attic/aring.h	2025/09/26 08:58:05	1.1.2.1
@@ -0,0 +1,114 @@
+/*************************************************************************
+* (C) 2025 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
+*  by Michael Pounov <misho@elwix.org>
+*
+* $Author: misho $
+* $Id: aring.h,v 1.1.2.1 2025/09/26 08:58:05 misho Exp $
+*
+**************************************************************************
+The ELWIX and AITNET software is distributed under the following
+terms:
+
+All of the documentation and software included in the ELWIX and AITNET
+Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
+
+Copyright 2004 - 2025
+	by Michael Pounov <misho@elwix.org>.  All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions
+are met:
+1. Redistributions of source code must retain the above copyright
+   notice, this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright
+   notice, this list of conditions and the following disclaimer in the
+   documentation and/or other materials provided with the distribution.
+3. All advertising materials mentioning features or use of this software
+   must display the following acknowledgement:
+This product includes software developed by Michael Pounov <misho@elwix.org>
+ELWIX - Embedded LightWeight unIX and its contributors.
+4. Neither the name of AITNET nor the names of its contributors
+   may be used to endorse or promote products derived from this software
+   without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+*/
+#ifndef __ARING_H
+#define __ARING_H
+
+
+typedef struct {
+	atomic_int	rb_head;
+	atomic_int	rb_tail;
+	int		rb_bufnum;
+	struct iovec	*rb_buffer;
+} ringbuf_t;
+
+
+/*
+ * rbuf_init() - Init ring buffer
+ *
+ * @rbuf = Ring buffer
+ * @num = Number of elements in buffer
+ * return: -1 error or 0 ok
+ */
+int rbuf_init(ringbuf_t *rbuf, int num);
+/*
+ * rbuf_free() - Free ring buffer
+ *
+ * @rbuf = Ring buffer
+ * return: none
+ */
+void rbuf_free(ringbuf_t *rbuf);
+/*
+ * rbuf_purge() - Purge all buffer
+ *
+ * @rbuf = Ring buffer
+ * return: none
+ */
+void rbuf_purge(ringbuf_t *rbuf);
+/*
+ * rbuf_isempty() - Check buffer is empty
+ *
+ * @rbuf = Ring buffer
+ * return: -1 error, 0 it isn't empty
+ */
+int rbuf_isempty(ringbuf_t *rbuf);
+/*
+ * rbuf_isfull() - Check buffer is full
+ *
+ * @rbuf = Ring buffer
+ * return: -1 error or 0 it isn't full
+ */
+int rbuf_isfull(ringbuf_t *rbuf);
+
+/*
+ * rbuf_enqueue() - Enqueue data to buffer
+ *
+ * @rbuf = Ring buffer
+ * @data = Data
+ * @len = Length
+ * return: -1 error, 1 can't add data, buffer is full or 0 ok
+ */
+int rbuf_enqueue(ringbuf_t *rbuf, void *data, size_t len);
+/*
+ * rbuf_dequeue() - Dequeue data from buffer
+ *
+ * @rbuf = Ring buffer
+ * @out = Data, if =NULL, just dequeue data
+ * return: -1 error, 1 buffer is empty or 0 ok
+ */
+int rbuf_dequeue(ringbuf_t *rbuf, struct iovec *out);
+
+
+#endif