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/*
* Simple struct with functions to create a list which associates ids with data
* -Allows for finding ids associated with data such as IPs or public keys in a short time
* -Should only be used if there are relatively few add/remove calls to the list
*/
/*
* Copyright © 2016-2018 The TokTok team.
* Copyright © 2014 Tox project.
*
* This file is part of Tox, the free peer to peer instant messenger.
*
* Tox 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.
*
* Tox 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 Tox. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef C_TOXCORE_TOXCORE_LIST_H
#define C_TOXCORE_TOXCORE_LIST_H
#include <stdint.h>
typedef struct BS_List {
uint32_t n; // number of elements
uint32_t capacity; // number of elements memory is allocated for
uint32_t element_size; // size of the elements
uint8_t *data; // array of elements
int *ids; // array of element ids
} BS_List;
/* Initialize a list, element_size is the size of the elements in the list and
* initial_capacity is the number of elements the memory will be initially allocated for
*
* return value:
* 1 : success
* 0 : failure
*/
int bs_list_init(BS_List *list, uint32_t element_size, uint32_t initial_capacity);
/* Free a list initiated with list_init */
void bs_list_free(BS_List *list);
/* Retrieve the id of an element in the list
*
* return value:
* >= 0 : id associated with data
* -1 : failure
*/
int bs_list_find(const BS_List *list, const uint8_t *data);
/* Add an element with associated id to the list
*
* return value:
* 1 : success
* 0 : failure (data already in list)
*/
int bs_list_add(BS_List *list, const uint8_t *data, int id);
/* Remove element from the list
*
* return value:
* 1 : success
* 0 : failure (element not found or id does not match)
*/
int bs_list_remove(BS_List *list, const uint8_t *data, int id);
/* Removes the memory overhead
*
* return value:
* 1 : success
* 0 : failure
*/
int bs_list_trim(BS_List *list);
#endif
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