1176998Sphk/*-
2176998Sphk * Copyright (c) 2005-2008 Poul-Henning Kamp
3176998Sphk * All rights reserved.
4176998Sphk *
5176998Sphk * Redistribution and use in source and binary forms, with or without
6176998Sphk * modification, are permitted provided that the following conditions
7176998Sphk * are met:
8176998Sphk * 1. Redistributions of source code must retain the above copyright
9176998Sphk *    notice, this list of conditions and the following disclaimer.
10176998Sphk * 2. Redistributions in binary form must reproduce the above copyright
11176998Sphk *    notice, this list of conditions and the following disclaimer in the
12176998Sphk *    documentation and/or other materials provided with the distribution.
13176998Sphk *
14176998Sphk * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15176998Sphk * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16176998Sphk * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17176998Sphk * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18176998Sphk * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19176998Sphk * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20176998Sphk * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21176998Sphk * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22176998Sphk * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23176998Sphk * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24176998Sphk * SUCH DAMAGE.
25176998Sphk *
26176998Sphk * $FreeBSD$
27176998Sphk */
28176998Sphk
29176998Sphk#define FIFOLOG_PT_BYTES_PRE		0
30176998Sphk#define FIFOLOG_PT_BYTES_POST		1
31176998Sphk#define FIFOLOG_PT_WRITES		2
32176998Sphk#define FIFOLOG_PT_FLUSH		3
33176998Sphk#define FIFOLOG_PT_SYNC			4
34176998Sphk#define FIFOLOG_PT_RUNTIME		5
35176998Sphk#define FIFOLOG_NPOINT			6
36176998Sphk
37176998Sphkstruct fifolog_writer {
38176998Sphk	unsigned			magic;
39176998Sphk#define FIFOLOG_WRITER_MAGIC		0xf1f0706
40176998Sphk
41176998Sphk	struct fifolog_file		*ff;
42176998Sphk
43176998Sphk	unsigned			writerate;
44176998Sphk	unsigned			syncrate;
45176998Sphk	unsigned			compression;
46176998Sphk
47176998Sphk	int				cleanup;
48176998Sphk
49176998Sphk	intmax_t			cnt[FIFOLOG_NPOINT];
50176998Sphk
51176998Sphk	uint32_t			seq;
52176998Sphk	off_t				recno;
53219095Sphk	uint8_t				flag;
54176998Sphk	time_t				last;
55176998Sphk
56219095Sphk	ssize_t				obufsize;
57216257Sphk	u_char				*obuf;
58216257Sphk
59219095Sphk	ssize_t				ibufsize;
60219095Sphk	ssize_t				ibufptr;
61176998Sphk	u_char				*ibuf;
62176998Sphk
63176998Sphk	time_t				starttime;
64176998Sphk	time_t				lastwrite;
65176998Sphk	time_t				lastsync;
66176998Sphk};
67219095Sphk
68219095Sphkstruct fifolog_writer *fifolog_write_new(void);
69219095Sphkconst char *fifolog_write_open(struct fifolog_writer *f, const char *fn, unsigned writerate, unsigned syncrate, unsigned compression);
70219095Sphkint fifolog_write_record(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, ssize_t len);
71219095Sphkint fifolog_write_poll(struct fifolog_writer *f, time_t now);
72219095Sphkint fifolog_write_record_poll(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, ssize_t len);
73219095Sphkvoid fifolog_write_close(struct fifolog_writer *f);
74219095Sphkvoid fifolog_write_destroy(struct fifolog_writer *f);
75219095Sphkextern const char *fifolog_write_statnames[];
76