1 /* $NetBSD: buf.h,v 1.12 2017/02/16 22:10:50 christos Exp $ */ 2 3 /* 4 * Copyright (c) 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Luke Mewburn for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed for the NetBSD Project by 20 * Wasabi Systems, Inc. 21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #ifndef _FFS_BUF_H 39 #define _FFS_BUF_H 40 41 #include <sys/param.h> 42 #include <sys/queue.h> 43 #include <sys/stat.h> 44 45 #include <stdio.h> 46 #include <string.h> 47 #include <errno.h> 48 #include <time.h> 49 #include <stddef.h> 50 #include <stdlib.h> 51 #include <err.h> 52 53 struct componentname { 54 char *cn_nameptr; 55 size_t cn_namelen; 56 }; 57 58 struct makefs_fsinfo; 59 struct vnode { 60 struct makefs_fsinfo *fs; 61 void *v_data; 62 }; 63 64 #define vput(a) ((void)(a)) 65 66 struct buf { 67 void * b_data; 68 long b_bufsize; 69 long b_bcount; 70 daddr_t b_blkno; 71 daddr_t b_lblkno; 72 struct makefs_fsinfo * b_fs; 73 74 TAILQ_ENTRY(buf) b_tailq; 75 }; 76 77 struct kauth_cred; 78 void bcleanup(void); 79 int bread(struct vnode *, daddr_t, int, int, struct buf **); 80 void brelse(struct buf *, int); 81 int bwrite(struct buf *); 82 struct buf * getblk(struct vnode *, daddr_t, int, int, int); 83 84 #define bdwrite(bp) bwrite(bp) 85 #define clrbuf(bp) memset((bp)->b_data, 0, (u_int)(bp)->b_bcount) 86 87 #define B_MODIFY 0 88 #define BC_AGE 0 89 90 #define min(a, b) MIN((a), (b)) 91 92 static inline void 93 microtime(struct timeval *tv) 94 { 95 extern struct stat stampst; 96 97 if (stampst.st_ino) { 98 tv->tv_sec = stampst.st_mtime; 99 tv->tv_usec = 0; 100 } else { 101 gettimeofday((tv), NULL); 102 } 103 } 104 105 #define KASSERT(a) 106 #define IO_SYNC 1 107 108 struct pool { 109 size_t size; 110 }; 111 112 #define pool_init(p, s, a1, a2, a3, a4, a5, a6) (p)->size = (s) 113 #define pool_get(p, f) ecalloc(1, (p)->size) 114 #define pool_put(p, a) free(a) 115 #define pool_destroy(p) 116 117 #define MALLOC_DECLARE(a) 118 #define malloc_type_attach(a) 119 #define malloc_type_detach(a) 120 121 #define mutex_enter(m) 122 #define mutex_exit(m) 123 #define mutex_init(m, t, i) 124 #define mutex_destroy(m) 125 126 #define desiredvnodes 10000 127 #define NOCRED NULL 128 #define DEV_BSHIFT 9 129 130 #endif /* _FFS_BUF_H */ 131