184 lines
6.3 KiB
C
184 lines
6.3 KiB
C
/*
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* Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*
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* Further, this software is distributed without any warranty that it is
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* free of the rightful claim of any third person regarding infringement
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* or the like. Any license provided herein, whether implied or
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* otherwise, applies only to this software file. Patent licenses, if
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* any, provided herein do not apply to combinations of this program with
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* other software, or any other product whatsoever.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write the Free Software Foundation, Inc., 59
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* Temple Place - Suite 330, Boston MA 02111-1307, USA.
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*
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* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
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* Mountain View, CA 94043, or:
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*
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* http://www.sgi.com
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*
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* For further information regarding this notice, see:
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*
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* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
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*/
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#ifndef __XFS_TYPES_H__
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#define __XFS_TYPES_H__
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#ifdef __KERNEL__
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/*
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* POSIX Extensions
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*/
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typedef unsigned char uchar_t;
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typedef unsigned short ushort_t;
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typedef unsigned int uint_t;
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typedef unsigned long ulong_t;
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/*
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* Additional type declarations for XFS
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*/
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typedef signed char __int8_t;
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typedef unsigned char __uint8_t;
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typedef signed short int __int16_t;
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typedef unsigned short int __uint16_t;
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typedef signed int __int32_t;
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typedef unsigned int __uint32_t;
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typedef signed long long int __int64_t;
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typedef unsigned long long int __uint64_t;
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typedef enum { B_FALSE,B_TRUE } boolean_t;
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typedef __int64_t prid_t; /* project ID */
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typedef __uint32_t inst_t; /* an instruction */
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typedef __s64 xfs_off_t; /* <file offset> type */
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typedef __u64 xfs_ino_t; /* <inode> type */
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typedef __s64 xfs_daddr_t; /* <disk address> type */
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typedef char * xfs_caddr_t; /* <core address> type */
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typedef __u32 xfs_dev_t;
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typedef __u32 xfs_nlink_t;
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/* __psint_t is the same size as a pointer */
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#if (BITS_PER_LONG == 32)
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typedef __int32_t __psint_t;
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typedef __uint32_t __psunsigned_t;
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#elif (BITS_PER_LONG == 64)
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typedef __int64_t __psint_t;
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typedef __uint64_t __psunsigned_t;
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#else
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#error BITS_PER_LONG must be 32 or 64
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#endif
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#endif /* __KERNEL__ */
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typedef __uint32_t xfs_agblock_t; /* blockno in alloc. group */
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typedef __uint32_t xfs_extlen_t; /* extent length in blocks */
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typedef __uint32_t xfs_agnumber_t; /* allocation group number */
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typedef __int32_t xfs_extnum_t; /* # of extents in a file */
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typedef __int16_t xfs_aextnum_t; /* # extents in an attribute fork */
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typedef __int64_t xfs_fsize_t; /* bytes in a file */
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typedef __uint64_t xfs_ufsize_t; /* unsigned bytes in a file */
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typedef __int32_t xfs_suminfo_t; /* type of bitmap summary info */
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typedef __int32_t xfs_rtword_t; /* word type for bitmap manipulations */
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typedef __int64_t xfs_lsn_t; /* log sequence number */
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typedef __int32_t xfs_tid_t; /* transaction identifier */
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typedef __uint32_t xfs_dablk_t; /* dir/attr block number (in file) */
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typedef __uint32_t xfs_dahash_t; /* dir/attr hash value */
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typedef __uint16_t xfs_prid_t; /* prid_t truncated to 16bits in XFS */
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/*
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* These types are 64 bits on disk but are either 32 or 64 bits in memory.
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* Disk based types:
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*/
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typedef __uint64_t xfs_dfsbno_t; /* blockno in filesystem (agno|agbno) */
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typedef __uint64_t xfs_drfsbno_t; /* blockno in filesystem (raw) */
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typedef __uint64_t xfs_drtbno_t; /* extent (block) in realtime area */
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typedef __uint64_t xfs_dfiloff_t; /* block number in a file */
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typedef __uint64_t xfs_dfilblks_t; /* number of blocks in a file */
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/*
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* Memory based types are conditional.
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*/
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#if XFS_BIG_BLKNOS
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typedef __uint64_t xfs_fsblock_t; /* blockno in filesystem (agno|agbno) */
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typedef __uint64_t xfs_rfsblock_t; /* blockno in filesystem (raw) */
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typedef __uint64_t xfs_rtblock_t; /* extent (block) in realtime area */
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typedef __int64_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */
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#else
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typedef __uint32_t xfs_fsblock_t; /* blockno in filesystem (agno|agbno) */
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typedef __uint32_t xfs_rfsblock_t; /* blockno in filesystem (raw) */
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typedef __uint32_t xfs_rtblock_t; /* extent (block) in realtime area */
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typedef __int32_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */
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#endif
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typedef __uint64_t xfs_fileoff_t; /* block number in a file */
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typedef __int64_t xfs_sfiloff_t; /* signed block number in a file */
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typedef __uint64_t xfs_filblks_t; /* number of blocks in a file */
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typedef __uint8_t xfs_arch_t; /* architecture of an xfs fs */
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/*
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* Null values for the types.
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*/
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#define NULLDFSBNO ((xfs_dfsbno_t)-1)
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#define NULLDRFSBNO ((xfs_drfsbno_t)-1)
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#define NULLDRTBNO ((xfs_drtbno_t)-1)
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#define NULLDFILOFF ((xfs_dfiloff_t)-1)
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#define NULLFSBLOCK ((xfs_fsblock_t)-1)
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#define NULLRFSBLOCK ((xfs_rfsblock_t)-1)
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#define NULLRTBLOCK ((xfs_rtblock_t)-1)
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#define NULLFILEOFF ((xfs_fileoff_t)-1)
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#define NULLAGBLOCK ((xfs_agblock_t)-1)
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#define NULLAGNUMBER ((xfs_agnumber_t)-1)
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#define NULLEXTNUM ((xfs_extnum_t)-1)
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#define NULLCOMMITLSN ((xfs_lsn_t)-1)
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/*
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* Max values for extlen, extnum, aextnum.
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*/
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#define MAXEXTLEN ((xfs_extlen_t)0x001fffff) /* 21 bits */
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#define MAXEXTNUM ((xfs_extnum_t)0x7fffffff) /* signed int */
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#define MAXAEXTNUM ((xfs_aextnum_t)0x7fff) /* signed short */
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/*
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* MAXNAMELEN is the length (including the terminating null) of
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* the longest permissible file (component) name.
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*/
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#define MAXNAMELEN 256
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typedef struct xfs_dirent { /* data from readdir() */
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xfs_ino_t d_ino; /* inode number of entry */
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xfs_off_t d_off; /* offset of disk directory entry */
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unsigned short d_reclen; /* length of this record */
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char d_name[1]; /* name of file */
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} xfs_dirent_t;
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#define DIRENTBASESIZE (((xfs_dirent_t *)0)->d_name - (char *)0)
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#define DIRENTSIZE(namelen) \
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((DIRENTBASESIZE + (namelen) + \
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sizeof(xfs_off_t)) & ~(sizeof(xfs_off_t) - 1))
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typedef enum {
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XFS_LOOKUP_EQi, XFS_LOOKUP_LEi, XFS_LOOKUP_GEi
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} xfs_lookup_t;
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typedef enum {
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XFS_BTNUM_BNOi, XFS_BTNUM_CNTi, XFS_BTNUM_BMAPi, XFS_BTNUM_INOi,
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XFS_BTNUM_MAX
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} xfs_btnum_t;
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#endif /* __XFS_TYPES_H__ */
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