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openairinterface5g/openair3/UTILS/HASHTABLE/hashtable.h
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2015-10-06 16:53:42 +00:00

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/* from: http://en.literateprograms.org/Hash_table_%28C%29#chunk%20def:node
* Original licence Creative Commons CC0 1.0 Waiver.(http://creativecommons.org/publicdomain/zero/1.0/)
*/
/*
* Copyright (c) 2015, EURECOM (www.eurecom.fr)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation are those
* of the authors and should not be interpreted as representing official policies,
* either expressed or implied, of the FreeBSD Project.
*/
#ifndef _UTILS_COLLECTION_HASH_TABLE_H_
#define _UTILS_COLLECTION_HASH_TABLE_H_
#include<stdlib.h>
#include <stdint.h>
#include <stddef.h>
typedef size_t hash_size_t;
typedef enum hashtable_return_code_e {
HASH_TABLE_OK = 0,
HASH_TABLE_INSERT_OVERWRITTEN_DATA = 1,
HASH_TABLE_KEY_NOT_EXISTS = 2,
HASH_TABLE_KEY_ALREADY_EXISTS = 3,
HASH_TABLE_BAD_PARAMETER_HASHTABLE = 4,
HASH_TABLE_SYSTEM_ERROR = 5,
HASH_TABLE_CODE_MAX
} hashtable_rc_t;
typedef struct hash_node_s {
uint64_t key;
void *data;
struct hash_node_s *next;
} hash_node_t;
typedef struct hash_table_s {
hash_size_t size;
hash_size_t num_elements;
struct hash_node_s **nodes;
hash_size_t (*hashfunc)(const uint64_t);
void (*freefunc)(void*);
} hash_table_t;
char* hashtable_rc_code2string(hashtable_rc_t rcP);
void hash_free_int_func(void* memoryP);
hash_table_t *hashtable_create (hash_size_t size, hash_size_t (*hashfunc)(const uint64_t ), void (*freefunc)(void*));
hashtable_rc_t hashtable_destroy(hash_table_t *hashtbl);
hashtable_rc_t hashtable_is_key_exists (hash_table_t *hashtbl, const uint64_t key);
hashtable_rc_t hashtable_apply_funct_on_elements (hash_table_t *hashtblP, void funct(uint64_t keyP, void* dataP, void* parameterP), void* parameterP);
hashtable_rc_t hashtable_insert (hash_table_t *hashtbl, const uint64_t key, void *data);
hashtable_rc_t hashtable_remove (hash_table_t *hashtbl, const uint64_t key);
hashtable_rc_t hashtable_get (hash_table_t *hashtbl, const uint64_t key, void **dataP);
hashtable_rc_t hashtable_resize (hash_table_t *hashtbl, hash_size_t size);
#endif