1 #ifndef HASHMAP_H 2 # define HASHMAP_H 3 4 # include <stdlib.h> 5 # include <stdint.h> 6 7 struct ext2fs_hashmap { 8 uint32_t size; 9 uint32_t(*hash)(const void *key, size_t len); 10 void(*free)(void*); 11 struct ext2fs_hashmap_entry *first; 12 struct ext2fs_hashmap_entry *last; 13 struct ext2fs_hashmap_entry { 14 void *data; 15 const void *key; 16 size_t key_len; 17 struct ext2fs_hashmap_entry *next; 18 struct ext2fs_hashmap_entry *list_next; 19 struct ext2fs_hashmap_entry *list_prev; 20 } *entries[0]; 21 }; 22 23 struct ext2fs_hashmap *ext2fs_hashmap_create( 24 uint32_t(*hash_fct)(const void*, size_t), 25 void(*free_fct)(void*), size_t size); 26 void ext2fs_hashmap_add(struct ext2fs_hashmap *h, void *data, const void *key, 27 size_t key_len); 28 void *ext2fs_hashmap_lookup(struct ext2fs_hashmap *h, const void *key, 29 size_t key_len); 30 void *ext2fs_hashmap_iter_in_order(struct ext2fs_hashmap *h, 31 struct ext2fs_hashmap_entry **it); 32 void ext2fs_hashmap_del(struct ext2fs_hashmap *h, 33 struct ext2fs_hashmap_entry *e); 34 void ext2fs_hashmap_free(struct ext2fs_hashmap *h); 35 36 uint32_t ext2fs_djb2_hash(const void *str, size_t size); 37 38 #endif /* !HASHMAP_H */ 39
