| /* |
| * 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_DIR2_H_ |
| #define XFS_DIR2_H_ |
| |
| #include <core.h> |
| #include <fs.h> |
| |
| #include "xfs.h" |
| |
| const void *xfs_dir2_dirblks_get_cached(struct fs_info *fs, block_t startblock, |
| xfs_filblks_t c); |
| void xfs_dir2_dirblks_flush_cache(void); |
| |
| uint32_t xfs_dir2_da_hashname(const uint8_t *name, int namelen); |
| |
| block_t xfs_dir2_get_right_blk(struct fs_info *fs, xfs_dinode_t *core, |
| block_t fsblkno, int *error); |
| |
| struct inode *xfs_dir2_local_find_entry(const char *dname, struct inode *parent, |
| xfs_dinode_t *core); |
| struct inode *xfs_dir2_block_find_entry(const char *dname, struct inode *parent, |
| xfs_dinode_t *core); |
| struct inode *xfs_dir2_leaf_find_entry(const char *dname, struct inode *parent, |
| xfs_dinode_t *core); |
| struct inode *xfs_dir2_node_find_entry(const char *dname, struct inode *parent, |
| xfs_dinode_t *core); |
| |
| static inline bool xfs_dir2_isleaf(struct fs_info *fs, xfs_dinode_t *dip) |
| { |
| uint64_t last = 0; |
| xfs_bmbt_irec_t irec; |
| |
| bmbt_irec_get(&irec, ((xfs_bmbt_rec_t *)&dip->di_literal_area[0]) + |
| be32_to_cpu(dip->di_nextents) - 1); |
| last = irec.br_startoff + irec.br_blockcount; |
| |
| return (last == XFS_INFO(fs)->dirleafblk + (1 << XFS_INFO(fs)->dirblklog)); |
| } |
| |
| static inline int xfs_dir2_entry_name_cmp(uint8_t *start, uint8_t *end, |
| const char *name) |
| { |
| if (!name || (strlen(name) != end - start)) |
| return -1; |
| |
| while (start < end) |
| if (*start++ != *name++) |
| return -1; |
| |
| return 0; |
| } |
| |
| #endif /* XFS_DIR2_H_ */ |