index: make the index file format extensible.
[git/git.git] / cache-tree.h
1 #ifndef CACHE_TREE_H
2 #define CACHE_TREE_H
3
4 struct cache_tree;
5 struct cache_tree_sub {
6 struct cache_tree *cache_tree;
7 int namelen;
8 int used;
9 char name[FLEX_ARRAY];
10 };
11
12 struct cache_tree {
13 int entry_count; /* negative means "invalid" */
14 unsigned char sha1[20];
15 int subtree_nr;
16 int subtree_alloc;
17 struct cache_tree_sub **down;
18 };
19
20 struct cache_tree *cache_tree(void);
21 void cache_tree_free(struct cache_tree **);
22 void cache_tree_invalidate_path(struct cache_tree *, const char *);
23
24 void *cache_tree_write(struct cache_tree *root, unsigned long *size_p);
25 struct cache_tree *cache_tree_read(const char *buffer, unsigned long size);
26
27 int cache_tree_fully_valid(struct cache_tree *);
28 int cache_tree_update(struct cache_tree *, struct cache_entry **, int, int);
29
30 #endif