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/*
* Taken from Linux kernel tree (linux/fs/xfs)
*
* Copyright (c) 2000-2005 Silicon Graphics, Inc.
* All Rights Reserved.
*
* Copyright (c) 2012 Paulo Alcantara <pcacjr@zytor.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef XFS_TYPES_H_
#define XFS_TYPES_H_
#include <stddef.h>
#include <sys/types.h>
typedef enum { B_FALSE,B_TRUE } boolean_t;
typedef uint32_t prid_t; /* project ID */
typedef uint32_t inst_t; /* an instruction */
typedef int64_t xfs_off_t; /* <file offset> type */
typedef unsigned long long xfs_ino_t; /* <inode> type */
typedef int64_t xfs_daddr_t; /* <disk address> type */
typedef char * xfs_caddr_t; /* <core address> type */
typedef uint32_t xfs_dev_t;
typedef uint32_t xfs_nlink_t;
/* __psint_t is the same size as a pointer */
typedef int32_t __psint_t;
typedef uint32_t __psunsigned_t;
typedef uint32_t xfs_agblock_t; /* blockno in alloc. group */
typedef uint32_t xfs_extlen_t; /* extent length in blocks */
typedef uint32_t xfs_agnumber_t; /* allocation group number */
typedef int32_t xfs_extnum_t; /* # of extents in a file */
typedef int16_t xfs_aextnum_t; /* # extents in an attribute fork */
typedef int64_t xfs_fsize_t; /* bytes in a file */
typedef uint64_t xfs_ufsize_t; /* unsigned bytes in a file */
typedef int32_t xfs_suminfo_t; /* type of bitmap summary info */
typedef int32_t xfs_rtword_t; /* word type for bitmap manipulations */
typedef int64_t xfs_lsn_t; /* log sequence number */
typedef int32_t xfs_tid_t; /* transaction identifier */
typedef uint32_t xfs_dablk_t; /* dir/attr block number (in file) */
typedef uint32_t xfs_dahash_t; /* dir/attr hash value */
/*
* These types are 64 bits on disk but are either 32 or 64 bits in memory.
* Disk based types:
*/
typedef uint64_t xfs_dfsbno_t; /* blockno in filesystem (agno|agbno) */
typedef uint64_t xfs_drfsbno_t; /* blockno in filesystem (raw) */
typedef uint64_t xfs_drtbno_t; /* extent (block) in realtime area */
typedef uint64_t xfs_dfiloff_t; /* block number in a file */
typedef uint64_t xfs_dfilblks_t; /* number of blocks in a file */
/*
* Memory based types are conditional.
*/
typedef uint64_t xfs_fsblock_t; /* blockno in filesystem (agno|agbno) */
typedef uint64_t xfs_rfsblock_t; /* blockno in filesystem (raw) */
typedef uint64_t xfs_rtblock_t; /* extent (block) in realtime area */
typedef int64_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */
typedef uint64_t xfs_fileoff_t; /* block number in a file */
typedef int64_t xfs_sfiloff_t; /* signed block number in a file */
typedef uint64_t xfs_filblks_t; /* number of blocks in a file */
/*
* Null values for the types.
*/
#define NULLDFSBNO ((xfs_dfsbno_t)-1)
#define NULLDRFSBNO ((xfs_drfsbno_t)-1)
#define NULLDRTBNO ((xfs_drtbno_t)-1)
#define NULLDFILOFF ((xfs_dfiloff_t)-1)
#define NULLFSBLOCK ((xfs_fsblock_t)-1)
#define NULLRFSBLOCK ((xfs_rfsblock_t)-1)
#define NULLRTBLOCK ((xfs_rtblock_t)-1)
#define NULLFILEOFF ((xfs_fileoff_t)-1)
#define NULLAGBLOCK ((xfs_agblock_t)-1)
#define NULLAGNUMBER ((xfs_agnumber_t)-1)
#define NULLEXTNUM ((xfs_extnum_t)-1)
#define NULLCOMMITLSN ((xfs_lsn_t)-1)
/*
* Max values for extlen, extnum, aextnum.
*/
#define MAXEXTLEN ((xfs_extlen_t)0x001fffff) /* 21 bits */
#define MAXEXTNUM ((xfs_extnum_t)0x7fffffff) /* signed int */
#define MAXAEXTNUM ((xfs_aextnum_t)0x7fff) /* signed short */
/*
* Min numbers of data/attr fork btree root pointers.
*/
#define MINDBTPTRS 3
#define MINABTPTRS 2
/*
* MAXNAMELEN is the length (including the terminating null) of
* the longest permissible file (component) name.
*/
#define MAXNAMELEN 256
typedef enum {
XFS_LOOKUP_EQi, XFS_LOOKUP_LEi, XFS_LOOKUP_GEi
} xfs_lookup_t;
typedef enum {
XFS_BTNUM_BNOi, XFS_BTNUM_CNTi, XFS_BTNUM_BMAPi, XFS_BTNUM_INOi,
XFS_BTNUM_MAX
} xfs_btnum_t;
struct xfs_name {
const unsigned char *name;
int len;
};
#endif /* XFS_TYPES_H_ */
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