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/* * Copyright (c) 2000-2005 Silicon Graphics, Inc. * All Rights Reserved. * * 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__ #ifdef __KERNEL__ /* * POSIX Extensions */ typedef unsigned char uchar_t; typedef unsigned short ushort_t; typedef unsigned int uint_t; typedef unsigned long ulong_t; /* * Additional type declarations for XFS */ typedef signed char __int8_t; typedef unsigned char __uint8_t; typedef signed short int __int16_t; typedef unsigned short int __uint16_t; typedef signed int __int32_t; typedef unsigned int __uint32_t; typedef signed long long int __int64_t; typedef unsigned long long int __uint64_t; typedef enum { B_FALSE,B_TRUE } boolean_t; typedef __uint32_t prid_t; /* project ID */ typedef __uint32_t inst_t; /* an instruction */ typedef __s64 xfs_off_t; /* <file offset> type */ typedef __u64 xfs_ino_t; /* <inode> type */ typedef __s64 xfs_daddr_t; /* <disk address> type */ typedef char * xfs_caddr_t; /* <core address> type */ typedef __u32 xfs_dev_t; typedef __u32 xfs_nlink_t; /* __psint_t is the same size as a pointer */ #if (BITS_PER_LONG == 32) typedef __int32_t __psint_t; typedef __uint32_t __psunsigned_t; #elif (BITS_PER_LONG == 64) typedef __int64_t __psint_t; typedef __uint64_t __psunsigned_t; #else #error BITS_PER_LONG must be 32 or 64 #endif #endif /* __KERNEL__ */ 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 */ typedef __uint16_t xfs_prid_t; /* prid_t truncated to 16bits in XFS */ /* * 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. */ #if XFS_BIG_BLKNOS 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 */ #else typedef __uint32_t xfs_fsblock_t; /* blockno in filesystem (agno|agbno) */ typedef __uint32_t xfs_rfsblock_t; /* blockno in filesystem (raw) */ typedef __uint32_t xfs_rtblock_t; /* extent (block) in realtime area */ typedef __int32_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */ #endif 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 */ typedef __uint8_t xfs_arch_t; /* architecture of an xfs fs */ /* * 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 struct xfs_dirent { /* data from readdir() */ xfs_ino_t d_ino; /* inode number of entry */ xfs_off_t d_off; /* offset of disk directory entry */ unsigned short d_reclen; /* length of this record */ char d_name[1]; /* name of file */ } xfs_dirent_t; #define DIRENTBASESIZE (((xfs_dirent_t *)0)->d_name - (char *)0) #define DIRENTSIZE(namelen) \ ((DIRENTBASESIZE + (namelen) + \ sizeof(xfs_off_t)) & ~(sizeof(xfs_off_t) - 1)) 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; #endif /* __XFS_TYPES_H__ */