rculfhash test: add missing free
[urcu.git] / urcu / rculfhash.h
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1#ifndef _URCU_RCULFHASH_H
2#define _URCU_RCULFHASH_H
ab7d5fc6 3
674f7a69 4#include <stdint.h>
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5#include <urcu-call-rcu.h>
6
7struct rcu_ht_node {
8 struct rcu_ht_node *next;
9 void *key;
732ad076 10 size_t key_len;
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11 unsigned long hash;
12 unsigned long reverse_hash;
13 unsigned int dummy;
14 void *value;
15 struct rcu_head head;
16};
17
18struct rcu_ht;
ab7d5fc6 19
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20/*
21 * Caution !
abc490a1 22 * Ensure reader and writer threads are registered as urcu readers.
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23 */
24
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25typedef unsigned long (*ht_hash_fct)(void *key, size_t length,
26 unsigned long seed);
27typedef unsigned long (*ht_compare_fct)(void *key1, size_t key1_len,
28 void *key2, size_t key2_len);
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29
30static inline
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31void ht_node_init(struct rcu_ht_node *node, void *key,
32 size_t key_len, void *value)
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33{
34 node->key = key;
732ad076 35 node->key_len = key_len;
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36 node->value = value;
37 node->dummy = 0;
38}
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39
40/*
41 * init_size must be power of two.
42 */
abc490a1 43struct rcu_ht *ht_new(ht_hash_fct hash_fct,
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44 ht_compare_fct compare_fct,
45 unsigned long hash_seed,
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46 unsigned long init_size,
47 void (*ht_call_rcu)(struct rcu_head *head,
48 void (*func)(struct rcu_head *head)));
ab7d5fc6 49
5e28c532 50int ht_destroy(struct rcu_ht *ht);
ab7d5fc6 51
abc490a1 52/* Call with rcu_read_lock held. */
732ad076 53struct rcu_ht_node *ht_lookup(struct rcu_ht *ht, void *key, size_t key_len);
ab7d5fc6 54
abc490a1 55/* Call with rcu_read_lock held. */
f000907d 56void ht_add(struct rcu_ht *ht, struct rcu_ht_node *node);
ab7d5fc6 57
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58/* Call with rcu_read_lock held. */
59int ht_add_unique(struct rcu_ht *ht, struct rcu_ht_node *node);
60
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61/* Call with rcu_read_lock held. */
62int ht_remove(struct rcu_ht *ht, struct rcu_ht_node *node);
ab7d5fc6 63
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64void ht_resize(struct rcu_ht *ht, int growth);
65
a42cc659 66#endif /* _URCU_RCULFHASH_H */
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