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1 | #ifndef CACHE_TREE_H | |
2 | #define CACHE_TREE_H | |
3 | ||
4 | #include "tree.h" | |
5 | #include "tree-walk.h" | |
6 | ||
7 | struct cache_tree; | |
8 | struct cache_tree_sub { | |
9 | struct cache_tree *cache_tree; | |
10 | int namelen; | |
11 | int used; | |
12 | char name[FLEX_ARRAY]; | |
13 | }; | |
14 | ||
15 | struct cache_tree { | |
16 | int entry_count; /* negative means "invalid" */ | |
17 | unsigned char sha1[20]; | |
18 | int subtree_nr; | |
19 | int subtree_alloc; | |
20 | struct cache_tree_sub **down; | |
21 | }; | |
22 | ||
23 | struct cache_tree *cache_tree(void); | |
24 | void cache_tree_free(struct cache_tree **); | |
25 | void cache_tree_invalidate_path(struct cache_tree *, const char *); | |
26 | struct cache_tree_sub *cache_tree_sub(struct cache_tree *, const char *); | |
27 | ||
28 | void cache_tree_write(struct strbuf *, struct cache_tree *root); | |
29 | struct cache_tree *cache_tree_read(const char *buffer, unsigned long size); | |
30 | ||
31 | int cache_tree_fully_valid(struct cache_tree *); | |
32 | int cache_tree_update(struct cache_tree *, struct cache_entry **, int, int, int); | |
33 | ||
34 | /* bitmasks to write_cache_as_tree flags */ | |
35 | #define WRITE_TREE_MISSING_OK 1 | |
36 | #define WRITE_TREE_IGNORE_CACHE_TREE 2 | |
37 | ||
38 | /* error return codes */ | |
39 | #define WRITE_TREE_UNREADABLE_INDEX (-1) | |
40 | #define WRITE_TREE_UNMERGED_INDEX (-2) | |
41 | #define WRITE_TREE_PREFIX_ERROR (-3) | |
42 | ||
43 | int write_cache_as_tree(unsigned char *sha1, int flags, const char *prefix); | |
44 | void prime_cache_tree(struct cache_tree **, struct tree *); | |
45 | ||
46 | extern int cache_tree_matches_traversal(struct cache_tree *, struct name_entry *ent, struct traverse_info *info); | |
47 | ||
48 | #endif |