1185222Ssam/* $NetBSD: buf.h,v 1.2 2001/11/02 03:12:49 lukem Exp $ */ 2185222Ssam 3185222Ssam/* 4185222Ssam * Copyright (c) 2001 Wasabi Systems, Inc. 5185222Ssam * All rights reserved. 6185222Ssam * 7185222Ssam * Written by Luke Mewburn for Wasabi Systems, Inc. 8185222Ssam * 9185222Ssam * Redistribution and use in source and binary forms, with or without 10185222Ssam * modification, are permitted provided that the following conditions 11185222Ssam * are met: 12185222Ssam * 1. Redistributions of source code must retain the above copyright 13185222Ssam * notice, this list of conditions and the following disclaimer. 14185222Ssam * 2. Redistributions in binary form must reproduce the above copyright 15185222Ssam * notice, this list of conditions and the following disclaimer in the 16185222Ssam * documentation and/or other materials provided with the distribution. 17185222Ssam * 3. All advertising materials mentioning features or use of this software 18185222Ssam * must display the following acknowledgement: 19185222Ssam * This product includes software developed for the NetBSD Project by 20185222Ssam * Wasabi Systems, Inc. 21185222Ssam * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22185222Ssam * or promote products derived from this software without specific prior 23185222Ssam * written permission. 24185222Ssam * 25185222Ssam * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26185222Ssam * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27185222Ssam * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28185222Ssam * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29185222Ssam * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30185222Ssam * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31185222Ssam * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32185222Ssam * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33185222Ssam * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34185222Ssam * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35185222Ssam * POSSIBILITY OF SUCH DAMAGE. 36186334Ssam * 37186334Ssam * $FreeBSD$ 38185222Ssam */ 39185222Ssam 40185222Ssam#ifndef _FFS_BUF_H 41185222Ssam#define _FFS_BUF_H 42185222Ssam 43185222Ssam#include <sys/param.h> 44185222Ssam#include <sys/queue.h> 45185222Ssam 46185222Ssamstruct buf { 47185222Ssam void * b_data; 48185222Ssam long b_bufsize; 49185222Ssam long b_bcount; 50185222Ssam daddr_t b_blkno; 51185222Ssam daddr_t b_lblkno; 52185222Ssam int b_fd; 53185222Ssam struct fs * b_fs; 54185222Ssam 55185222Ssam TAILQ_ENTRY(buf) b_tailq; 56185222Ssam}; 57185222Ssam 58185222Ssamvoid bcleanup(void); 59185222Ssamint bread(int, struct fs *, daddr_t, int, struct buf **); 60185222Ssamvoid brelse(struct buf *); 61185222Ssamint bwrite(struct buf *); 62185222Ssamstruct buf * getblk(int, struct fs *, daddr_t, int); 63185222Ssam 64185222Ssam#define bdwrite(bp) bwrite(bp) 65185222Ssam#define clrbuf(bp) memset((bp)->b_data, 0, (u_int)(bp)->b_bcount) 66185222Ssam 67185222Ssam#endif /* _FFS_BUF_H */ 68