1 /* $NetBSD: buf.h,v 1.3 2001/11/02 03:12:49 lukem 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 * $FreeBSD$ 38 */ 39 40 #ifndef _FFS_BUF_H 41 #define _FFS_BUF_H 42 43 #include <sys/param.h> 44 #include <sys/queue.h> 45 46 struct makefs_fsinfo; 47 struct ucred; 48 49 struct vnode { 50 struct makefs_fsinfo *fs; 51 void *v_data; 52 }; 53 54 struct buf { 55 void * b_data; 56 long b_bufsize; 57 long b_bcount; 58 daddr_t b_blkno; 59 daddr_t b_lblkno; 60 struct makefs_fsinfo *b_fs; 61 62 TAILQ_ENTRY(buf) b_tailq; 63 }; 64 65 void bcleanup(void); 66 int bread(struct vnode *, daddr_t, int, struct ucred *, 67 struct buf **); 68 void brelse(struct buf *, int); 69 int bwrite(struct buf *); 70 struct buf * getblk(struct vnode *, daddr_t, int, int, int, int); 71 72 #define bdwrite(bp) bwrite(bp) 73 #define clrbuf(bp) memset((bp)->b_data, 0, (u_int)(bp)->b_bcount) 74 75 #endif /* _FFS_BUF_H */ 76