--- libelwix/example/test_rbuf.c	2025/09/26 10:00:46	1.1
+++ libelwix/example/test_rbuf.c	2025/09/26 10:00:46	1.1.2.1
@@ -0,0 +1,58 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <elwix.h>
+
+
+int
+main(int argc, char **argv)
+{
+	ringbuf_t rbuf;
+	struct iovec iov;
+	int res, i;
+
+	argc--;
+	argv++;
+
+	if (rbuf_init(&rbuf, argc ? strtol(argv[0], NULL, 10) : 0)) {
+		printf("Error:: rbuf_init(%d) #%d - %s\n", argc, elwix_GetErrno(), elwix_GetError());
+	}
+
+	argc--;
+	argv++;
+
+	printf("Result must be 1==%d empty buffer\n", rbuf_dequeue(&rbuf, NULL));
+	printf("Buffer is empty? %d\n", rbuf_isempty(&rbuf));
+	printf("Buffer is full? %d\n", rbuf_isfull(&rbuf));
+	printf("Result enqueue %d\n", rbuf_enqueue(&rbuf, argv[0], argv[0] ? strlen(argv[0]) : 0));
+	printf("Buffer is empty? %d\n", rbuf_isempty(&rbuf));
+	printf("Buffer is full? %d\n", rbuf_isfull(&rbuf));
+	printf("Result dequeue %d\n", (res = rbuf_dequeue(&rbuf, &iov)));
+	if (!res)
+		printf("iov.iov_base=%p==%p iov.iov_size=%u==%u\n", iov.iov_base, argv[0], iov.iov_len, argv[0] ? strlen(argv[0]) : 0);
+	printf("Buffer is empty? %d\n", rbuf_isempty(&rbuf));
+	printf("Buffer is full? %d\n", rbuf_isfull(&rbuf));
+
+	for (i = 0; i < argc; i++)
+		printf("Result enqueue arg#%d %d\n", i, rbuf_enqueue(&rbuf, argv[i], argv[i] ? strlen(argv[i]) : 0));
+	printf("Buffer is empty? %d\n", rbuf_isempty(&rbuf));
+	printf("Buffer is full? %d\n", rbuf_isfull(&rbuf));
+	for (i = 0; i < argc && !(res = rbuf_dequeue(&rbuf, &iov)); i++)
+		printf("Result dequeue arg#%d %d = (%d)/%s\n", i, res, iov.iov_len, iov.iov_base);
+	printf("Buffer must be empty? 1==%d\n", rbuf_isempty(&rbuf));
+	printf("Buffer is full? %d\n", rbuf_isfull(&rbuf));
+
+	for (i = 0; i < argc; i++)
+		printf("Result enqueue arg#%d %d\n", i, rbuf_enqueue(&rbuf, argv[i], argv[i] ? strlen(argv[i]) : 0));
+	printf("Buffer is empty? %d\n", rbuf_isempty(&rbuf));
+	printf("Buffer is full? %d\n", rbuf_isfull(&rbuf));
+	printf("Purge buffer test\n");
+	rbuf_purge(&rbuf);
+	printf("Buffer must be empty? 1==%d\n", rbuf_isempty(&rbuf));
+	printf("Buffer is full? %d\n", rbuf_isfull(&rbuf));
+
+	rbuf_free(&rbuf);
+	printf("Result enqueue after free! -1==%d\n", rbuf_enqueue(&rbuf, argv[0], argv[0] ? strlen(argv[0]) : 0));
+	printf("Result dequeue after free! -1==%d\n", rbuf_dequeue(&rbuf, &iov));
+	return 0;
+}