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#ifndef HASHMAP_H
# define HASHMAP_H
# include <stdlib.h>
# include <stdint.h>
#ifndef __GNUC_PREREQ
#if defined(__GNUC__) && defined(__GNUC_MINOR__)
#define __GNUC_PREREQ(maj, min) \
((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
#else
#define __GNUC_PREREQ(maj, min) 0
#endif
#endif
struct ext2fs_hashmap {
uint32_t size;
uint32_t(*hash)(const void *key, size_t len);
void(*free)(void*);
struct ext2fs_hashmap_entry *first;
struct ext2fs_hashmap_entry *last;
struct ext2fs_hashmap_entry {
void *data;
const void *key;
size_t key_len;
struct ext2fs_hashmap_entry *next;
struct ext2fs_hashmap_entry *list_next;
struct ext2fs_hashmap_entry *list_prev;
#if __GNUC_PREREQ (4, 8)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpedantic"
#endif
} *entries[0];
#if __GNUC_PREREQ (4, 8)
#pragma GCC diagnostic pop
#endif
};
struct ext2fs_hashmap *ext2fs_hashmap_create(
uint32_t(*hash_fct)(const void*, size_t),
void(*free_fct)(void*), size_t size);
void ext2fs_hashmap_add(struct ext2fs_hashmap *h, void *data, const void *key,
size_t key_len);
void *ext2fs_hashmap_lookup(struct ext2fs_hashmap *h, const void *key,
size_t key_len);
void *ext2fs_hashmap_iter_in_order(struct ext2fs_hashmap *h,
struct ext2fs_hashmap_entry **it);
void ext2fs_hashmap_del(struct ext2fs_hashmap *h,
struct ext2fs_hashmap_entry *e);
void ext2fs_hashmap_free(struct ext2fs_hashmap *h);
uint32_t ext2fs_djb2_hash(const void *str, size_t size);
#endif /* !HASHMAP_H */