2 * Copyright Droids Corporation (2007)
3 * Olivier MATZ <zer0@droids-corp.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 * Revision : $Id: cirbuf_get_buf_tail.c,v 1.1.2.3 2007-09-12 17:52:20 zer0 Exp $
27 /* convert to buffer */
31 cirbuf_get_buf_tail(struct cirbuf * cbuf, char * c, cirbuf_uint size)
33 cirbuf_uint n = (size < CIRBUF_GET_LEN(cbuf)) ? size : CIRBUF_GET_LEN(cbuf);
38 if (cbuf->start <= cbuf->end) {
39 dprintf("s[%d] -> d[%d] (%d)\n", cbuf->end - n + 1, 0, n);
40 memcpy(c, cbuf->buf + cbuf->end - n + 1, n);
43 dprintf("s[%d] -> d[%d] (%d)\n", 0, cbuf->maxlen - cbuf->start, cbuf->end + 1);
44 dprintf("s[%d] -> d[%d] (%d)\n", cbuf->maxlen - n + cbuf->end + 1, 0, n - cbuf->end - 1);
46 memcpy(c + cbuf->maxlen - cbuf->start, cbuf->buf, cbuf->end + 1);
47 memcpy(c, cbuf->buf + cbuf->maxlen - n + cbuf->end +1, n - cbuf->end - 1);