5 * hash.h Structures and prototypes
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27 #include <freeradius-devel/ident.h>
28 RCSIDH(hash_h, "$Id$")
35 * Fast hash, which isn't too bad. Don't use for cryptography,
36 * just for hashing internal data.
38 uint32_t fr_hash(const void *, size_t);
39 uint32_t fr_hash_update(const void *data, size_t size, uint32_t hash);
40 uint32_t fr_hash_string(const char *p);
43 * If you need fewer than 32-bits of hash, use this macro to get
44 * the number of bits in the hash you need. The upper bits of the
45 * hash will be set to zero.
47 uint32_t fr_hash_fold(uint32_t hash, int bits);
49 typedef struct fr_hash_table_t fr_hash_table_t;
50 typedef void (*fr_hash_table_free_t)(void *);
51 typedef uint32_t (*fr_hash_table_hash_t)(const void *);
52 typedef int (*fr_hash_table_cmp_t)(const void *, const void *);
53 typedef int (*fr_hash_table_walk_t)(void * /* ctx */, void * /* data */);
55 fr_hash_table_t *fr_hash_table_create(fr_hash_table_hash_t hashNode,
56 fr_hash_table_cmp_t cmpNode,
57 fr_hash_table_free_t freeNode);
58 void fr_hash_table_free(fr_hash_table_t *ht);
59 int fr_hash_table_insert(fr_hash_table_t *ht, void *data);
60 int fr_hash_table_delete(fr_hash_table_t *ht, const void *data);
61 void *fr_hash_table_yank(fr_hash_table_t *ht, const void *data);
62 int fr_hash_table_replace(fr_hash_table_t *ht, void *data);
63 void *fr_hash_table_finddata(fr_hash_table_t *ht, const void *data);
64 int fr_hash_table_num_elements(fr_hash_table_t *ht);
65 int fr_hash_table_walk(fr_hash_table_t *ht,
66 fr_hash_table_walk_t callback,
73 #endif /* FR_HASH_H */