libfifolog.h revision 176998 
1/*-
2 * Copyright (c) 2005-2008 Poul-Henning Kamp
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/usr.sbin/fifolog/lib/libfifolog.h 176998 2008-03-09 19:14:36Z phk $
27 */
28
29#include <sys/stdint.h>
30
31/* CREATORS */
32const char *fifolog_create(const char *fn, off_t size, unsigned recsize);
33
34
35/* WRITERS */
36
37struct fifolog_writer;
38struct fifolog_writer *fifolog_write_new(void);
39const char *fifolog_write_open(struct fifolog_writer *f, const char *fn, unsigned writerate, unsigned syncrate, int compression);
40int fifolog_write_bytes(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, unsigned len);
41void fifolog_write_bytes_poll(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, unsigned len);
42int fifolog_write_poll(struct fifolog_writer *f, time_t now);
43void fifolog_write_close(struct fifolog_writer *f);
44void fifolog_write_destroy(struct fifolog_writer *f);
45int fifolog_write_flush(struct fifolog_writer *f);
46extern const char *fifolog_write_statnames[];
47
48/* READERS */
49
50typedef void fifolog_reader_render_t(void *priv, time_t when, unsigned flag, const unsigned char *p, unsigned l);
51struct fifolog_reader;
52struct fifolog_reader *fifolog_reader_open(const char *fname);
53off_t fifolog_reader_seek(const struct fifolog_reader *fl, time_t t0);
54void fifolog_reader_process(struct fifolog_reader *fl, off_t from, fifolog_reader_render_t *func, void *priv, time_t end);
55
56/* UTILS */
57time_t get_date(char *p);
58
59#if (__FreeBSD__ < 7)
60int     expand_number(char *_buf, int64_t *_num);
61#endif
62
63