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/***************************************************************************
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trie_dict.h - description
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-------------------
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Copyright : (C) 2004-2025 by Leaflet
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Email : leaflet@leafok.com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef _TRIE_DICT_H_
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#define _TRIE_DICT_H_
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#include <stdint.h>
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#define TRIE_CHILDREN 256
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#define TRIE_MAX_KEY_LEN 1023
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struct trie_node_t
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{
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int64_t values[TRIE_CHILDREN];
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int8_t flags[TRIE_CHILDREN];
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struct trie_node_t *p_nodes[TRIE_CHILDREN];
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};
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typedef struct trie_node_t TRIE_NODE;
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typedef void (*trie_dict_traverse_cb)(const char *, int64_t);
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extern int trie_dict_init(const char *filename);
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extern void trie_dict_cleanup(void);
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extern int set_trie_dict_shm_readonly(void);
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extern int detach_trie_dict_shm(void);
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extern TRIE_NODE *trie_dict_create(void);
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extern void trie_dict_destroy(TRIE_NODE *p_dict);
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extern int trie_dict_set(TRIE_NODE *p_dict, const char *key, int64_t value);
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extern int trie_dict_get(TRIE_NODE *p_dict, const char *key, int64_t *p_value);
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extern int trie_dict_del(TRIE_NODE *p_dict, const char *key);
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extern void trie_dict_traverse(TRIE_NODE *p_dict, trie_dict_traverse_cb cb);
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#endif //_TRIE_DICT_H_
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