4 #define DOES_NOT_EXIST 0
6 #define EXPECT_DOES_NOT_EXIST ( 0)
7 #define EXPECT_EXISTS (-1)
8 #define EXPECT_WHATEVER (-2)
10 typedef struct hti *hashtable_t;
12 hashtable_t *ht_alloc (void);
13 void ht_free (hashtable_t *ht);
14 uint64_t ht_get (hashtable_t *ht, const char *key, uint32_t len);
15 uint64_t ht_compare_and_set (hashtable_t *ht, const char *key, uint32_t key_len, uint64_t expected_val, uint64_t val);
16 uint64_t ht_remove (hashtable_t *ht, const char *key, uint32_t len);
17 uint64_t ht_count (hashtable_t *ht);