1 #ifndef _URCU_RCULFHASH_H
2 #define _URCU_RCULFHASH_H
5 #include <urcu-call-rcu.h>
8 /* cache-hot for iteration */
9 struct rcu_ht_node
*next
;
10 unsigned long reverse_hash
;
14 /* cache-cold for iteration */
22 * Ensure reader and writer threads are registered as urcu readers.
25 typedef unsigned long (*ht_hash_fct
)(void *key
, size_t length
,
27 typedef unsigned long (*ht_compare_fct
)(void *key1
, size_t key1_len
,
28 void *key2
, size_t key2_len
);
31 void ht_node_init(struct rcu_ht_node
*node
, void *key
,
35 node
->key_len
= key_len
;
40 * init_size must be power of two.
42 struct rcu_ht
*ht_new(ht_hash_fct hash_fct
,
43 ht_compare_fct compare_fct
,
44 unsigned long hash_seed
,
45 unsigned long init_size
,
46 void (*ht_call_rcu
)(struct rcu_head
*head
,
47 void (*func
)(struct rcu_head
*head
)));
49 int ht_destroy(struct rcu_ht
*ht
);
50 /* Count the number of nodes in the hash table. Call with rcu_read_lock held. */
51 void ht_count_nodes(struct rcu_ht
*ht
,
53 unsigned long *removed
);
55 /* Call with rcu_read_lock held. */
56 struct rcu_ht_node
*ht_lookup(struct rcu_ht
*ht
, void *key
, size_t key_len
);
58 /* Call with rcu_read_lock held. */
59 void ht_add(struct rcu_ht
*ht
, struct rcu_ht_node
*node
);
61 /* Call with rcu_read_lock held. */
62 int ht_add_unique(struct rcu_ht
*ht
, struct rcu_ht_node
*node
);
64 /* Call with rcu_read_lock held. */
65 int ht_remove(struct rcu_ht
*ht
, struct rcu_ht_node
*node
);
67 void ht_resize(struct rcu_ht
*ht
, int growth
);
69 #endif /* _URCU_RCULFHASH_H */