1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2005-2008 Poul-Henning Kamp
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 *    notice, this list of conditions and the following disclaimer in the
14 *    documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 *
28 * $FreeBSD$
29 */
30
31#define FIFOLOG_PT_BYTES_PRE		0
32#define FIFOLOG_PT_BYTES_POST		1
33#define FIFOLOG_PT_WRITES		2
34#define FIFOLOG_PT_FLUSH		3
35#define FIFOLOG_PT_SYNC			4
36#define FIFOLOG_PT_RUNTIME		5
37#define FIFOLOG_NPOINT			6
38
39struct fifolog_writer {
40	unsigned			magic;
41#define FIFOLOG_WRITER_MAGIC		0xf1f0706
42
43	struct fifolog_file		*ff;
44
45	unsigned			writerate;
46	unsigned			syncrate;
47	unsigned			compression;
48
49	int				cleanup;
50
51	intmax_t			cnt[FIFOLOG_NPOINT];
52
53	uint32_t			seq;
54	off_t				recno;
55	uint8_t				flag;
56	time_t				last;
57
58	ssize_t				obufsize;
59	u_char				*obuf;
60
61	ssize_t				ibufsize;
62	ssize_t				ibufptr;
63	u_char				*ibuf;
64
65	time_t				starttime;
66	time_t				lastwrite;
67	time_t				lastsync;
68};
69
70struct fifolog_writer *fifolog_write_new(void);
71const char *fifolog_write_open(struct fifolog_writer *f, const char *fn, unsigned writerate, unsigned syncrate, unsigned compression);
72int fifolog_write_record(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, ssize_t len);
73int fifolog_write_poll(struct fifolog_writer *f, time_t now);
74int fifolog_write_record_poll(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, ssize_t len);
75void fifolog_write_close(struct fifolog_writer *f);
76void fifolog_write_destroy(struct fifolog_writer *f);
77extern const char *fifolog_write_statnames[];
78