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 * $FreeBSD$
27 */
28
29#define FIFOLOG_PT_BYTES_PRE		0
30#define FIFOLOG_PT_BYTES_POST		1
31#define FIFOLOG_PT_WRITES		2
32#define FIFOLOG_PT_FLUSH		3
33#define FIFOLOG_PT_SYNC			4
34#define FIFOLOG_PT_RUNTIME		5
35#define FIFOLOG_NPOINT			6
36
37struct fifolog_writer {
38	unsigned			magic;
39#define FIFOLOG_WRITER_MAGIC		0xf1f0706
40
41	struct fifolog_file		*ff;
42
43	unsigned			writerate;
44	unsigned			syncrate;
45	unsigned			compression;
46
47	int				cleanup;
48
49	intmax_t			cnt[FIFOLOG_NPOINT];
50
51	uint32_t			seq;
52	off_t				recno;
53	uint8_t				flag;
54	time_t				last;
55
56	ssize_t				obufsize;
57	u_char				*obuf;
58
59	ssize_t				ibufsize;
60	ssize_t				ibufptr;
61	u_char				*ibuf;
62
63	time_t				starttime;
64	time_t				lastwrite;
65	time_t				lastsync;
66};
67
68struct fifolog_writer *fifolog_write_new(void);
69const char *fifolog_write_open(struct fifolog_writer *f, const char *fn, unsigned writerate, unsigned syncrate, unsigned compression);
70int fifolog_write_record(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, ssize_t len);
71int fifolog_write_poll(struct fifolog_writer *f, time_t now);
72int fifolog_write_record_poll(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, ssize_t len);
73void fifolog_write_close(struct fifolog_writer *f);
74void fifolog_write_destroy(struct fifolog_writer *f);
75extern const char *fifolog_write_statnames[];
76