buf.h revision 1.3 
1/*	$NetBSD: buf.h,v 1.3 2013/01/26 00:19:39 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
44#include <stdio.h>
45#include <string.h>
46#include <errno.h>
47#include <time.h>
48#include <stddef.h>
49#include <stdlib.h>
50#include <err.h>
51
52struct componentname {
53	char *cn_nameptr;
54	size_t cn_namelen;
55};
56
57struct vnode {
58	int fd;
59	void *fs;
60	void *v_data;
61	int offset;
62};
63
64#define vput(a) ((void)(a))
65
66struct buf {
67	void *		b_data;
68	long		b_bufsize;
69	long		b_bcount;
70	daddr_t		b_blkno;
71	daddr_t		b_lblkno;
72	int		b_fd;
73	struct fs *	b_fs;
74
75	TAILQ_ENTRY(buf)	b_tailq;
76};
77
78void		bcleanup(void);
79int		bread(struct vnode *, daddr_t, int, struct kauth_cred *,
80    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#define microtime(tv) gettimeofday((tv), NULL)
93#define KASSERT(a)
94#define IO_SYNC	1
95
96struct pool {
97	size_t size;
98};
99
100#define pool_init(p, s, a1, a2, a3, a4, a5, a6)	(p)->size = (s)
101#define pool_get(p, f)	malloc((p)->size)
102#define pool_put(p, a)	free(a)
103#define pool_destroy(p)
104
105#define MALLOC_DECLARE(a)
106#define malloc_type_attach(a)
107#define malloc_type_detach(a)
108
109#define mutex_enter(m)
110#define mutex_exit(m)
111#define mutex_init(m, t, i)
112#define mutex_destroy(m)
113
114#define desiredvnodes 10000
115
116#endif	/* _FFS_BUF_H */
117