--- libelwix/inc/elwix/aring.h	2026/02/10 17:50:00	1.5
+++ libelwix/inc/elwix/aring.h	2026/02/13 17:09:32	1.6.2.1
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: aring.h,v 1.5 2026/02/10 17:50:00 misho Exp $
+* $Id: aring.h,v 1.6.2.1 2026/02/13 17:09:32 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -62,6 +62,13 @@ typedef struct {
 			int		lrb_size;
 			unsigned char	*lrb_data;
 } lrbuf_t;
+#define lrb_head(x)		atomic_load_explicit((atomic_int*) &(x)->lrb_head, memory_order_relaxed)
+#define lrb_tail(x)		atomic_load_explicit((atomic_int*) &(x)->lrb_tail, memory_order_relaxed)
+#define lrb_size(x)		((x)->lrb_size)
+#define lrb_getb(x)		((x)->lrb_data)
+#define lrb_hptr(x)		((x)->lrb_data + lrb_head((x)))
+#define lrb_tptr(x)		((x)->lrb_data + lrb_tail((x)))
+#define lrb_isrewind(x)		(lrb_head((x)) < lrb_tail((x)))
 #define lrb_queued(x, r)	do { \
 					u_int _h, _t; \
 					_t = atomic_load_explicit((atomic_int*) &(x)->lrb_tail, memory_order_acquire); \
@@ -190,6 +197,26 @@ int lrb_enqueue(lrbuf_t *lrb, void *data, size_t len, 
  * return: -1 error, 0 buffer is empty or >0 stored data bytes
  */
 int lrb_dequeue(lrbuf_t *lrb, void *data, size_t len);
+/*
+ * lrb_getw() - Get address for write
+ *
+ * @lrb = Linear ring buffer
+ * @len = Return available buffer length for write
+ * return: NULL error or !=NULL pointer for write
+ * remark: After use of lrb_getw() and write to pointer.
+ * 		You should update ring buffer with lrb_enqueue(,NULL,wrote_len,)
+ */
+void *lrb_getw(lrbuf_t *lrb, size_t *len);
+/*
+ * lrb_getr() - Get address for read
+ *
+ * @lrb = Linear ring buffer
+ * @len = Return available data length for read
+ * return: NULL error or !=NULL pointer for read
+ * remark: After use of lrb_getr() and read from pointer.
+ * 		You could update ring buffer with lrb_dequeue(,NULL,read_len)
+ */
+void *lrb_getr(lrbuf_t *lrb, size_t *len);
 
 
 #endif