filep.h revision ae115bc77f6fcde83175c75b4206dc2e50747966
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (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 2007 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_FILEP_H
#define _SYS_FILEP_H
#pragma ident "%Z%%M% %I% %E% SMI"
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/fs/ufs_fsdir.h>
#include <sys/fs/ufs_fs.h>
#include <sys/fs/ufs_inode.h>
/*
* These structs should be invisible to the caller of
* the user-level routines
*/
typedef struct dev_ident { /* device identifier block */
char *di_desc;
int di_dcookie;
char di_taken;
union {
struct fs di_fs;
char dummy[SBSIZE];
} un_fs;
} devid_t;
/*
* Borrowed bits from i_flag
*/
#define FI_CACHED 0x100000
#define FI_PARTIAL_CACHE 0x200000
#define FI_NOCACHE 0x400000
#define FI_COMPRESSED 0x8 /* File compressed in ramdisk */
#define DECOMP_BUFSIZE (512 * 1024) /* size of decompress buffer */
typedef struct file_ident { /* file identifier block */
uint_t fi_filedes;
char *fi_path;
daddr_t fi_blocknum;
uint_t fi_count;
off_t fi_offset;
caddr_t fi_memp;
char fi_taken;
char fi_flags;
devid_t *fi_devp;
char fi_buf[MAXBSIZE];
int (*fi_getblock)(struct file_ident *);
struct inode *fi_inode;
struct file_ident *fi_forw;
struct file_ident *fi_back;
off_t fi_cfoff; /* compressed file offset */
caddr_t fi_dcscrbuf; /* decomp scratch buffer */
size_t fi_dcscrused; /* used bytes in scratch buf */
struct z_stream_s *fi_dcstream; /* decompression stream */
} fileid_t;
extern int diskread(fileid_t *);
#ifdef __cplusplus
}
#endif
#endif /* _SYS_FILEP_H */