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 37 struct 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 unsigned writes_since_sync; 48 49 int cleanup; 50 51 intmax_t cnt[FIFOLOG_NPOINT]; 52 53 uint32_t seq; 54 off_t recno; 55 int flag; 56 time_t last; 57 58 u_int ibufsize; 59 u_char *ibuf; 60 u_char *iptr; 61 62 time_t starttime; 63 time_t lastwrite; 64 time_t lastsync; 65 }; 66