1 /* $NetBSD: buf.h,v 1.14 2022/03/06 08:31:54 hgutch 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 #include "namespace.h" 53 54 struct componentname { 55 char *cn_nameptr; 56 size_t cn_namelen; 57 }; 58 59 struct makefs_fsinfo; 60 struct vnode { 61 struct makefs_fsinfo *fs; 62 void *v_data; 63 }; 64 65 #define vput(a) ((void)(a)) 66 67 struct buf { 68 void * b_data; 69 long b_bufsize; 70 long b_bcount; 71 daddr_t b_blkno; 72 daddr_t b_lblkno; 73 struct makefs_fsinfo * b_fs; 74 75 TAILQ_ENTRY(buf) b_tailq; 76 }; 77 78 struct kauth_cred; 79 void bcleanup(void); 80 int bread(struct vnode *, daddr_t, int, int, struct buf **); 81 void brelse(struct buf *, int); 82 int bwrite(struct buf *); 83 struct buf * getblk(struct vnode *, daddr_t, int, int, int); 84 85 #define bdwrite(bp) bwrite(bp) 86 #define clrbuf(bp) memset((bp)->b_data, 0, (u_int)(bp)->b_bcount) 87 88 #define B_MODIFY 0 89 #define BC_AGE 0 90 91 #define min(a, b) MIN((a), (b)) 92 93 static inline unsigned int 94 uimin(unsigned int a, unsigned int b) 95 { 96 97 return (a < b ? a : b); 98 } 99 100 static inline unsigned int 101 uimax(unsigned int a, unsigned int b) 102 { 103 104 return (a > b ? a : b); 105 } 106 107 static inline void 108 microtime(struct timeval *tv) 109 { 110 extern struct stat stampst; 111 112 if (stampst.st_ino) { 113 tv->tv_sec = stampst.st_mtime; 114 tv->tv_usec = 0; 115 } else { 116 gettimeofday((tv), NULL); 117 } 118 } 119 120 #define KASSERT(a) 121 #define IO_SYNC 1 122 123 struct pool { 124 size_t size; 125 }; 126 127 #define pool_init(p, s, a1, a2, a3, a4, a5, a6) (p)->size = (s) 128 #define pool_get(p, f) ecalloc(1, (p)->size) 129 #define pool_put(p, a) free(a) 130 #define pool_destroy(p) 131 132 #define MALLOC_DECLARE(a) 133 #define malloc_type_attach(a) 134 #define malloc_type_detach(a) 135 136 #define mutex_enter(m) 137 #define mutex_exit(m) 138 #define mutex_init(m, t, i) 139 #define mutex_destroy(m) 140 141 #define desiredvnodes 10000 142 #define NOCRED NULL 143 #define DEV_BSHIFT 9 144 145 #endif /* _FFS_BUF_H */ 146