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/*
* utils.c
*
* Copyright (C) 2009 Hector Martin <hector@marcansoft.com>
* Copyright (C) 2009 Nikias Bassen <nikias@gmx.li>
* Copyright (c) 2013 Federico Mena Quintero
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 2.1 of the
* License, or (at your option) any later version.
*
* This library 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 Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <errno.h>
#include "utils.h"
#define CAPACITY_STEP 8
void collection_init(struct collection *col)
{
col->list = malloc(sizeof(void *) * CAPACITY_STEP);
memset(col->list, 0, sizeof(void *) * CAPACITY_STEP);
col->capacity = CAPACITY_STEP;
}
void collection_free(struct collection *col)
{
free(col->list);
col->list = NULL;
col->capacity = 0;
}
void collection_add(struct collection *col, void *element)
{
int i;
for(i=0; i<col->capacity; i++) {
if(!col->list[i]) {
col->list[i] = element;
return;
}
}
col->list = realloc(col->list, sizeof(void*) * (col->capacity + CAPACITY_STEP));
memset(&col->list[col->capacity], 0, sizeof(void *) * CAPACITY_STEP);
col->list[col->capacity] = element;
col->capacity += CAPACITY_STEP;
}
void collection_remove(struct collection *col, void *element)
{
int i;
for(i=0; i<col->capacity; i++) {
if(col->list[i] == element) {
col->list[i] = NULL;
return;
}
}
}
int collection_count(struct collection *col)
{
int i, cnt = 0;
for(i=0; i<col->capacity; i++) {
if(col->list[i])
cnt++;
}
return cnt;
}
void collection_copy(struct collection *dest, struct collection *src)
{
if (!dest || !src) return;
dest->capacity = src->capacity;
dest->list = malloc(sizeof(void*) * src->capacity);
memcpy(dest->list, src->list, sizeof(void*) * src->capacity);
}
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