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
54struct componentname {
55	char *cn_nameptr;
56	size_t cn_namelen;
57};
58
59struct makefs_fsinfo;
60struct vnode {
61	struct makefs_fsinfo *fs;
62	void *v_data;
63};
64
65#define vput(a) ((void)(a))
66
67struct 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
78struct kauth_cred;
79void		bcleanup(void);
80int		bread(struct vnode *, daddr_t, int, int, struct buf **);
81void		brelse(struct buf *, int);
82int		bwrite(struct buf *);
83struct 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
93static inline unsigned int
94uimin(unsigned int a, unsigned int b)
95{
96
97	return (a < b ? a : b);
98}
99
100static inline unsigned int
101uimax(unsigned int a, unsigned int b)
102{
103
104	return (a > b ? a : b);
105}
106
107static inline void
108microtime(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
123struct 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