cachefs_dir.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* 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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#ifndef _SYS_FS_CACHEFS_DIR_H
#define _SYS_FS_CACHEFS_DIR_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <sys/types.h>
#include <sys/fs/cachefs_fs.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
* c_dirent is stored on disk, so it needs to be the same 32-bit vs. 64-bit.
*/
#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
#pragma pack(4)
#endif
struct c_dirent {
uint_t d_length; /* entry length */
uint_t d_flag; /* entry flags */
cfs_cid_t d_id; /* file id */
offset_t d_offset; /* disk offset of this entry */
cfs_fid_t d_cookie; /* back fid */
ushort_t d_namelen; /* name length, without null */
char d_name[1]; /* name */
};
#if _LONG_LONG_ALIGNMENT == 8 && _LONG_LONG_ALIGNMENT_32 == 4
#pragma pack()
#endif
#define C_DIRSIZ(dp) \
(((dp)->d_namelen + (uint_t)sizeof (struct c_dirent) + 7) & ~7)
#define CDE_SIZE(NM) \
((strlen(NM) + sizeof (struct c_dirent) + 7) & ~7)
/*
* Various flags stored in c_dirent flag field.
*/
#define CDE_VALID 0x1 /* entry is valid */
#define CDE_COMPLETE 0x2 /* entry is complete */
#if defined(_KERNEL) && defined(__STDC__)
int cachefs_dir_look(cnode_t *dcp, char *nm, fid_t *cookiep, uint_t *flagp,
u_offset_t *d_offsetp, cfs_cid_t *cidp);
int cachefs_dir_new(cnode_t *dcp, cnode_t *cp);
int cachefs_dir_enter(cnode_t *dcp, char *nm, fid_t *cookiep, cfs_cid_t *cidp,
int issync);
int cachefs_dir_rmentry(cnode_t *dcp, char *nm);
void cachefs_dir_modentry(cnode_t *dcp, u_offset_t offset, fid_t *cookiep,
cfs_cid_t *cidp);
int cachefs_dir_read(struct cnode *dcp, struct uio *uiop, int *eofp);
int cachefs_dir_fill(cnode_t *dcp, cred_t *cr);
int cachefs_dir_empty(cnode_t *dcp);
int cachefs_async_populate_dir(struct cachefs_populate_req *, cred_t *,
vnode_t *, vnode_t *);
#endif /* defined(_KERNEL) && defined(__STDC__) */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_FS_CACHEFS_DIR_H */