3 #include "web_buffer.h"
6 #ifndef NETDATA_DICTIONARY_H
7 #define NETDATA_DICTIONARY_H 1
9 typedef struct name_value {
10 avl avl; // the index - this has to be first!
12 uint32_t hash; // a simple hash to speed up searching
13 // we first compare hashes, and only if the hashes are equal we do string comparisons
19 typedef struct dictionary {
22 unsigned long long inserts;
23 unsigned long long deletes;
24 unsigned long long searches;
25 unsigned long long entries;
27 avl_tree values_index;
28 pthread_rwlock_t rwlock;
29 pthread_mutex_t atomic_mutex;
32 #define DICTIONARY_FLAG_DEFAULT 0x00000000
33 #define DICTIONARY_FLAG_SINGLE_THREADED 0x00000001
34 #define DICTIONARY_FLAG_VALUE_LINK_DONT_CLONE 0x00000002
35 #define DICTIONARY_FLAG_NAME_LINK_DONT_CLONE 0x00000004
37 extern DICTIONARY *dictionary_create(uint32_t flags);
38 extern void dictionary_destroy(DICTIONARY *dict);
39 extern void *dictionary_set(DICTIONARY *dict, const char *name, void *value, size_t value_len);
40 extern void *dictionary_get(DICTIONARY *dict, const char *name);
41 extern int dictionary_del(DICTIONARY *dict, const char *name);
43 extern int dictionary_get_all(DICTIONARY *dict, int (*callback)(void *entry, void *data), void *data);
45 #endif /* NETDATA_DICTIONARY_H */