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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1997-1998 by Sun Microsystems, Inc.
* All rights reserved.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#ifndef _SYS_FBUF_H
#define _SYS_FBUF_H
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 1.3 */
#include <sys/vnode.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* A struct fbuf is used to get a mapping to part of a file using the
* segkmap facilities. After you get a mapping, you can fbrelse() it
* (giving a seg code to pass back to segmap_release), you can fbwrite()
* it (causes a synchronous write back using the file mapping information),
* or you can fbiwrite it (causing indirect synchronous write back to
* the block number given without using the file mapping information).
*/
struct fbuf {
caddr_t fb_addr;
uint_t fb_count;
};
#if defined(__STDC__)
extern int fbread(struct vnode *, offset_t, uint_t, enum seg_rw,
struct fbuf **);
extern void fbzero(struct vnode *, offset_t, uint_t, struct fbuf **);
extern int fbwrite(struct fbuf *);
extern int fbdwrite(struct fbuf *);
extern int fbiwrite(struct fbuf *, struct vnode *, daddr_t bn, int bsize);
extern void fbrelse(struct fbuf *, enum seg_rw);
#endif
#ifdef __cplusplus
}
#endif
#endif /* _SYS_FBUF_H */
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