summaryrefslogtreecommitdiff
path: root/lib/rsp_hash.h
blob: a95b50b37b08abf95bf6f034e4b5f9a8f8306399 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
/* Copyright (c) 2008, UNINETT AS */
/* See COPYING for licensing information. */

#ifndef SYS_SOLARIS9
#include <stdint.h>
#endif

#if defined (__cplusplus)
extern "C" {
#endif

struct hash {
    struct list *hashlist;
    pthread_mutex_t mutex;
};

struct hash_entry {
    void *key;
    uint32_t keylen;
    void *data;
    struct list_node *next; /* used when walking through hash */
};

/* allocates and initialises hash structure; returns NULL if malloc fails */
struct hash *hash_create();

/* frees all memory associated with the hash */
void hash_destroy(struct hash *hash);

/* insert entry in hash; returns 1 if ok, 0 if malloc fails */
int hash_insert(struct hash *hash, void *key, uint32_t keylen, void *data);

/* reads entry from hash */
void *hash_read(struct hash *hash, void *key, uint32_t keylen);

/* extracts (read and remove) entry from hash */
void *hash_extract(struct hash *hash, void *key, uint32_t keylen);

/* returns first entry */
struct hash_entry *hash_first(struct hash *hash);

/* returns the next entry after the argument */
struct hash_entry *hash_next(struct hash_entry *entry);

#if defined (__cplusplus)
}
#endif

/* Local Variables: */
/* c-file-style: "stroustrup" */
/* End: */