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/*
* Copyright (C) 2023 Johnny Richard
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef HASHMAP_H
#define HASHMAP_H
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#define HASHMAP_INITIAL_CAPACITY 32
#define U32_FNV1A_PRIME 0x01000193
#define U32_FNV1A_OFFSET_BASIS 0x811c9dc5
typedef struct hashmap_t hashmap_t;
typedef struct hashmap_bucket_t hashmap_bucket_t;
typedef struct hashmap_entry_t hashmap_entry_t;
typedef struct hashmap_t
{
hashmap_entry_t *entries;
uint32_t capacity;
} hashmap_t;
typedef struct hashmap_entry_t
{
char *key;
void *value;
uint32_t hash;
hashmap_entry_t *next;
} hashmap_entry_t;
/**
* @brief: Create a new hashmap with HASHMAP_INITIAL_CAPACITY
*/
hashmap_t *
hashmap_new(void);
/**
* @brief: Store a new entry into the hashmap.
*
* @param key:
* The function copies the key in order to have his own key.
* @param value:
* Value of the hashmap entry, the hashmap doesn't have the ownership.
* @return boolean
* true if the object has been added to the hashmap otherwise false.
*/
bool
hashmap_put(hashmap_t *map, char *key, void *value);
void *
hashmap_get(hashmap_t *map, char *key);
/**
* @brief: Destroy the hashmap and entries. (including keys)
*/
void
hashmap_destroy(hashmap_t *map);
#endif /* HASHMAP_H */
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