1 /* vi: set sw=4 ts=4: */
5 * Copyright (C) 1996, 1997 Theodore Ts'o.
8 * This file may be redistributed under the terms of the GNU Public
13 struct ext2_inode_reference {
18 struct ext2_inode_relocate_entry {
25 typedef struct ext2_inode_relocation_table *ext2_irel;
27 struct ext2_inode_relocation_table {
34 * Add an inode relocation entry.
36 errcode_t (*put)(ext2_irel irel, ext2_ino_t old,
37 struct ext2_inode_relocate_entry *ent);
39 * Get an inode relocation entry.
41 errcode_t (*get)(ext2_irel irel, ext2_ino_t old,
42 struct ext2_inode_relocate_entry *ent);
45 * Get an inode relocation entry by its original inode number
47 errcode_t (*get_by_orig)(ext2_irel irel, ext2_ino_t orig, ext2_ino_t *old,
48 struct ext2_inode_relocate_entry *ent);
51 * Initialize for iterating over the inode relocation entries.
53 errcode_t (*start_iter)(ext2_irel irel);
56 * The iterator function for the inode relocation entries.
57 * Returns an inode number of 0 when out of entries.
59 errcode_t (*next)(ext2_irel irel, ext2_ino_t *old,
60 struct ext2_inode_relocate_entry *ent);
63 * Add an inode reference (i.e., note the fact that a
64 * particular block/offset contains a reference to an inode)
66 errcode_t (*add_ref)(ext2_irel irel, ext2_ino_t ino,
67 struct ext2_inode_reference *ref);
70 * Initialize for iterating over the inode references for a
73 errcode_t (*start_iter_ref)(ext2_irel irel, ext2_ino_t ino);
76 * The iterator function for the inode references for an
77 * inode. The references for only one inode can be interator
78 * over at a time, as the iterator state is stored in ext2_irel.
80 errcode_t (*next_ref)(ext2_irel irel,
81 struct ext2_inode_reference *ref);
84 * Move the inode relocation table from one inode number to
85 * another. Note that the inode references also must move.
87 errcode_t (*move)(ext2_irel irel, ext2_ino_t old, ext2_ino_t new);
90 * Remove an inode relocation entry, along with all of the
93 errcode_t (*delete)(ext2_irel irel, ext2_ino_t old);
96 * Free the inode relocation table.
98 errcode_t (*free)(ext2_irel irel);
101 errcode_t ext2fs_irel_memarray_create(char *name, ext2_ino_t max_inode,
104 #define ext2fs_irel_put(irel, old, ent) ((irel)->put((irel), old, ent))
105 #define ext2fs_irel_get(irel, old, ent) ((irel)->get((irel), old, ent))
106 #define ext2fs_irel_get_by_orig(irel, orig, old, ent) \
107 ((irel)->get_by_orig((irel), orig, old, ent))
108 #define ext2fs_irel_start_iter(irel) ((irel)->start_iter((irel)))
109 #define ext2fs_irel_next(irel, old, ent) ((irel)->next((irel), old, ent))
110 #define ext2fs_irel_add_ref(irel, ino, ref) ((irel)->add_ref((irel), ino, ref))
111 #define ext2fs_irel_start_iter_ref(irel, ino) ((irel)->start_iter_ref((irel), ino))
112 #define ext2fs_irel_next_ref(irel, ref) ((irel)->next_ref((irel), ref))
113 #define ext2fs_irel_move(irel, old, new) ((irel)->move((irel), old, new))
114 #define ext2fs_irel_delete(irel, old) ((irel)->delete((irel), old))
115 #define ext2fs_irel_free(irel) ((irel)->free((irel)))