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