Function cirbuf_init

dpdk/lib/cmdline/cmdline_cirbuf.c:14–25

int
cirbuf_init(struct cirbuf *cbuf, char *buf, unsigned int start, unsigned int maxlen)
{
	if (!cbuf || !buf)
		return -EINVAL;
	cbuf->maxlen = maxlen;
	cbuf->len = 0;
	cbuf->start = start;
	cbuf->end = start;
	cbuf->buf = buf;
	return 0;
}

/* multiple add */