1#ifndef TREE_WALK_H2#define TREE_WALK_H34struct name_entry {5const unsigned char *sha1;6const char *path;7unsigned int mode;8};910struct tree_desc {11const void *buffer;12struct name_entry entry;13unsigned int size;14};1516static inline const unsigned char *tree_entry_extract(struct tree_desc *desc, const char **pathp, unsigned int *modep)17{18*pathp = desc->entry.path;19*modep = canon_mode(desc->entry.mode);20return desc->entry.sha1;21}2223static inline int tree_entry_len(const char *name, const unsigned char *sha1)24{25return (const char *)sha1 - name - 1;26}2728void update_tree_entry(struct tree_desc *);29void init_tree_desc(struct tree_desc *desc, const void *buf, unsigned long size);3031/* Helper function that does both of the above and returns true for success */32int tree_entry(struct tree_desc *, struct name_entry *);3334void *fill_tree_descriptor(struct tree_desc *desc, const unsigned char *sha1);3536typedef void (*traverse_callback_t)(int n, unsigned long mask, struct name_entry *entry, const char *base);3738void traverse_trees(int n, struct tree_desc *t, const char *base, traverse_callback_t callback);3940int get_tree_entry(const unsigned char *, const char *, unsigned char *, unsigned *);4142#endif