1 #ifndef NETDATA_DICTIONARY_H
2 #define NETDATA_DICTIONARY_H 1
4 struct dictionary_stats {
5 unsigned long long inserts;
6 unsigned long long deletes;
7 unsigned long long searches;
8 unsigned long long entries;
11 typedef struct name_value {
12 avl avl; // the index - this has to be first!
14 uint32_t hash; // a simple hash to speed up searching
15 // we first compare hashes, and only if the hashes are equal we do string comparisons
21 typedef struct dictionary {
22 avl_tree values_index;
26 struct dictionary_stats *stats;
27 pthread_rwlock_t *rwlock;
30 #define DICTIONARY_FLAG_DEFAULT 0x00000000
31 #define DICTIONARY_FLAG_SINGLE_THREADED 0x00000001
32 #define DICTIONARY_FLAG_VALUE_LINK_DONT_CLONE 0x00000002
33 #define DICTIONARY_FLAG_NAME_LINK_DONT_CLONE 0x00000004
34 #define DICTIONARY_FLAG_WITH_STATISTICS 0x00000008
36 extern DICTIONARY *dictionary_create(uint8_t flags);
37 extern void dictionary_destroy(DICTIONARY *dict);
38 extern void *dictionary_set(DICTIONARY *dict, const char *name, void *value, size_t value_len);
39 extern void *dictionary_get(DICTIONARY *dict, const char *name);
40 extern int dictionary_del(DICTIONARY *dict, const char *name);
42 extern int dictionary_get_all(DICTIONARY *dict, int (*callback)(void *entry, void *d), void *data);
44 #endif /* NETDATA_DICTIONARY_H */