http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/xfs/xfs_dir2_block.h

/* * Copyright (c) 2000-2001,2005 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_DIR2_BLOCK_H__ #define __XFS_DIR2_BLOCK_H__ /* * xfs_dir2_block.h * Directory version 2, single block format structures */ struct uio; struct xfs_dabuf; struct xfs_da_args; struct xfs_dir2_data_hdr; struct xfs_dir2_leaf_entry; struct xfs_inode; struct xfs_mount; struct xfs_trans; /* * The single block format is as follows: * xfs_dir2_data_hdr_t structure * xfs_dir2_data_entry_t and xfs_dir2_data_unused_t structures * xfs_dir2_leaf_entry_t structures * xfs_dir2_block_tail_t structure */ #define XFS_DIR2_BLOCK_MAGIC 0x58443242 /* XD2B: for one block dirs */ typedef struct xfs_dir2_block_tail { __uint32_t count; /* count of leaf entries */ __uint32_t stale; /* count of stale lf entries */ } xfs_dir2_block_tail_t; /* * Generic single-block structure, for xfs_db. */ typedef struct xfs_dir2_block { xfs_dir2_data_hdr_t hdr; /* magic XFS_DIR2_BLOCK_MAGIC */ xfs_dir2_data_union_t u[1]; xfs_dir2_leaf_entry_t leaf[1]; xfs_dir2_block_tail_t tail; } xfs_dir2_block_t; /* * Pointer to the leaf header embedded in a data block (1-block format) */ #define XFS_DIR2_BLOCK_TAIL_P(mp,block) xfs_dir2_block_tail_p(mp,block) static inline xfs_dir2_block_tail_t * xfs_dir2_block_tail_p(struct xfs_mount *mp, xfs_dir2_block_t *block) { return (((xfs_dir2_block_tail_t *) ((char *)(block) + (mp)->m_dirblksize)) - 1); } /* * Pointer to the leaf entries embedded in a data block (1-block format) */ #define XFS_DIR2_BLOCK_LEAF_P(btp) xfs_dir2_block_leaf_p(btp) static inline struct xfs_dir2_leaf_entry * xfs_dir2_block_leaf_p(xfs_dir2_block_tail_t *btp) { return (((struct xfs_dir2_leaf_entry *) (btp)) - INT_GET((btp)->count, ARCH_CONVERT)); } /* * Function declarations. */ extern int xfs_dir2_block_addname(struct xfs_da_args *args); extern int xfs_dir2_block_getdents(struct xfs_trans *tp, struct xfs_inode *dp, struct uio *uio, int *eofp, struct xfs_dirent *dbp, xfs_dir2_put_t put); extern int xfs_dir2_block_lookup(struct xfs_da_args *args); extern int xfs_dir2_block_removename(struct xfs_da_args *args); extern int xfs_dir2_block_replace(struct xfs_da_args *args); extern int xfs_dir2_leaf_to_block(struct xfs_da_args *args, struct xfs_dabuf *lbp, struct xfs_dabuf *dbp); extern int xfs_dir2_sf_to_block(struct xfs_da_args *args); #endif /* __XFS_DIR2_BLOCK_H__ */