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
uimin(unsigned int a,unsigned int b)94 uimin(unsigned int a, unsigned int b)
95 {
96
97 return (a < b ? a : b);
98 }
99
100 static inline unsigned int
uimax(unsigned int a,unsigned int b)101 uimax(unsigned int a, unsigned int b)
102 {
103
104 return (a > b ? a : b);
105 }
106
107 static inline void
microtime(struct timeval * tv)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