Major cleanup. Eina_Hash now support other key than string. All code except
[profile/ivi/eina.git] / src / include / eina_hash.h
1 #ifndef EINA_HASH_H_
2 #define EINA_HASH_H_
3
4 #include "eina_types.h"
5
6 /**
7  *
8  */
9 typedef struct _Eina_Hash Eina_Hash;
10 typedef unsigned int (*Eina_Key_Length)(const void *key);
11 #define EINA_KEY_LENGTH(Function) ((Eina_Key_Length)Function)
12 typedef int (*Eina_Key_Cmp)(const void *key1, int key1_length,
13                             const void *key2, int key2_length);
14 #define EINA_KEY_CMP(Function) ((Eina_Key_Cmp)Function)
15 typedef int (*Eina_Key_Hash)(const void *key, int key_length);
16 #define EINA_KEY_HASH(Function) ((Eina_Key_Hash)Function)
17
18 EAPI int eina_hash_init(void);
19 EAPI int eina_hash_shutdown(void);
20
21 EAPI Eina_Hash * eina_hash_new(Eina_Key_Length key_length_cb,
22                                Eina_Key_Cmp key_cmp_cb,
23                                Eina_Key_Hash key_hash_cb);
24 EAPI Eina_Hash * eina_hash_string_djb2_new(void);
25 EAPI Eina_Hash * eina_hash_string_superfast_new(void);
26
27 EAPI Eina_Bool   eina_hash_add(Eina_Hash *hash, const void *key, const void *data);
28 EAPI Eina_Bool   eina_hash_direct_add(Eina_Hash *hash, const void *key, const void *data);
29 EAPI Eina_Bool   eina_hash_del(Eina_Hash *hash, const void *key, const void *data);
30 EAPI void      * eina_hash_find(const Eina_Hash *hash, const void *key);
31 EAPI void      * eina_hash_modify(Eina_Hash *hash, const void *key, const void *data);
32 EAPI void        eina_hash_free(Eina_Hash *hash);
33 EAPI int         eina_hash_population(const Eina_Hash *hash);
34
35 EAPI Eina_Bool   eina_hash_add_by_hash(Eina_Hash *hash,
36                                        const void *key, int key_length, int key_hash,
37                                        const void *data);
38 EAPI Eina_Bool   eina_hash_direct_add_by_hash(Eina_Hash *hash,
39                                               const void *key, int key_length, int key_hash,
40                                               const void *data);
41 EAPI Eina_Bool   eina_hash_del_by_hash(Eina_Hash *hash,
42                                        const void *key, int key_length, int key_hash,
43                                        const void *data);
44 EAPI void      * eina_hash_find_by_hash(const Eina_Hash *hash,
45                                         const void *key, int key_length, int key_hash);
46 EAPI void      * eina_hash_modify_by_hash(Eina_Hash *hash,
47                                           const void *key, int key_length, int key_hash,
48                                           const void *data);
49
50 /* FIXME: Should go with iterator support. */
51 typedef Eina_Bool (*Eina_Foreach)(const Eina_Hash *hash, const void *key, void *data, void *fdata);
52 EAPI void        eina_hash_foreach(const Eina_Hash *hash,
53                                    Eina_Foreach cb,
54                                    const void *fdata);
55
56 /* Paul Hsieh (http://www.azillionmonkeys.com/qed/hash.html) hash function
57    used by WebCore (http://webkit.org/blog/8/hashtables-part-2/) */
58 EAPI int eina_hash_superfast(const char *key, int len);
59
60 /* Hash function first reported by dan bernstein many years ago in comp.lang.c */
61 static inline int eina_hash_djb2(const char *key, int len);
62
63 #include "eina_inline_hash.x"
64
65 #endif /*EINA_HASH_H_*/