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 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 68 struct fifolog_writer *fifolog_write_new(void); 69 const char *fifolog_write_open(struct fifolog_writer *f, const char *fn, unsigned writerate, unsigned syncrate, unsigned compression); 70 int fifolog_write_record(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, ssize_t len); 71 int fifolog_write_poll(struct fifolog_writer *f, time_t now); 72 int fifolog_write_record_poll(struct fifolog_writer *f, uint32_t id, time_t now, const void *ptr, ssize_t len); 73 void fifolog_write_close(struct fifolog_writer *f); 74 void fifolog_write_destroy(struct fifolog_writer *f); 75 extern const char *fifolog_write_statnames[]; 76