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// SPDX-License-Identifier: GPL-3.0-or-later
#ifndef NETDATA_DICTIONARY_H
#define NETDATA_DICTIONARY_H 1
#include "../libnetdata.h"
struct dictionary_stats {
unsigned long long inserts;
unsigned long long deletes;
unsigned long long searches;
unsigned long long entries;
};
typedef struct name_value {
avl_t avl_node; // the index - this has to be first!
uint32_t hash; // a simple hash to speed up searching
// we first compare hashes, and only if the hashes are equal we do string comparisons
char *name;
void *value;
} NAME_VALUE;
typedef struct dictionary {
avl_tree_type values_index;
uint8_t flags;
struct dictionary_stats *stats;
netdata_rwlock_t *rwlock;
} DICTIONARY;
#define DICTIONARY_FLAG_DEFAULT 0x00000000
#define DICTIONARY_FLAG_SINGLE_THREADED 0x00000001
#define DICTIONARY_FLAG_VALUE_LINK_DONT_CLONE 0x00000002
#define DICTIONARY_FLAG_NAME_LINK_DONT_CLONE 0x00000004
#define DICTIONARY_FLAG_WITH_STATISTICS 0x00000008
extern DICTIONARY *dictionary_create(uint8_t flags);
extern void dictionary_destroy(DICTIONARY *dict);
extern void *dictionary_set(DICTIONARY *dict, const char *name, void *value, size_t value_len) NEVERNULL;
extern void *dictionary_get(DICTIONARY *dict, const char *name);
extern int dictionary_del(DICTIONARY *dict, const char *name);
extern int dictionary_get_all(DICTIONARY *dict, int (*callback)(void *entry, void *d), void *data);
extern int dictionary_get_all_name_value(DICTIONARY *dict, int (*callback)(char *name, void *entry, void *d), void *data);
#endif /* NETDATA_DICTIONARY_H */
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