43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
#ifndef HASHMAP_H
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# define HASHMAP_H
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# include <stdlib.h>
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# include <stdint.h>
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#ifndef __GNUC_PREREQ
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#if defined(__GNUC__) && defined(__GNUC_MINOR__)
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#define __GNUC_PREREQ(maj, min) \
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((__GNUC__ << 16) + __GNUC_MINOR__ >= ((maj) << 16) + (min))
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#else
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#define __GNUC_PREREQ(maj, min) 0
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#endif
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#endif
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struct ext2fs_hashmap;
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struct ext2fs_hashmap_entry {
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void *data;
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const void *key;
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size_t key_len;
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struct ext2fs_hashmap_entry *next;
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struct ext2fs_hashmap_entry *list_next;
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struct ext2fs_hashmap_entry *list_prev;
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};
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struct ext2fs_hashmap *ext2fs_hashmap_create(
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uint32_t(*hash_fct)(const void*, size_t),
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void(*free_fct)(void*), size_t size);
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void ext2fs_hashmap_add(struct ext2fs_hashmap *h, void *data, const void *key,
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size_t key_len);
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void *ext2fs_hashmap_lookup(struct ext2fs_hashmap *h, const void *key,
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size_t key_len);
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void *ext2fs_hashmap_iter_in_order(struct ext2fs_hashmap *h,
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struct ext2fs_hashmap_entry **it);
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void ext2fs_hashmap_del(struct ext2fs_hashmap *h,
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struct ext2fs_hashmap_entry *e);
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void ext2fs_hashmap_free(struct ext2fs_hashmap *h);
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uint32_t ext2fs_djb2_hash(const void *str, size_t size);
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#endif /* !HASHMAP_H */
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