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/*
general.c - Part of libsensors, a Linux library for reading sensor data.
Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
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 Lesser General Public License for more details.
You should have received a copy of the GNU 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.
*/
#include "error.h"
#include "general.h"
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#define A_BUNCH 16
void sensors_malloc_array(void *list, int *num_el, int *max_el, int el_size)
{
void **my_list = (void **)list;
*my_list = malloc(el_size*A_BUNCH);
if (! *my_list)
sensors_fatal_error(__func__, "Allocating new elements");
*max_el = A_BUNCH;
*num_el = 0;
}
void sensors_free_array(void *list, int *num_el, int *max_el)
{
void **my_list = (void **)list;
free(*my_list);
*my_list = NULL;
*num_el = 0;
*max_el = 0;
}
void sensors_add_array_el(const void *el, void *list, int *num_el,
int *max_el, int el_size)
{
int new_max_el;
void **my_list = (void *)list;
if (*num_el + 1 > *max_el) {
new_max_el = *max_el + A_BUNCH;
*my_list = realloc(*my_list, new_max_el * el_size);
if (! *my_list)
sensors_fatal_error(__func__,
"Allocating new elements");
*max_el = new_max_el;
}
memcpy(((char *) *my_list) + *num_el * el_size, el, el_size);
(*num_el) ++;
}
void sensors_add_array_els(const void *els, int nr_els, void *list,
int *num_el, int *max_el, int el_size)
{
int new_max_el;
void **my_list = (void *)list;
if (*num_el + nr_els > *max_el) {
new_max_el = (*max_el + nr_els + A_BUNCH);
new_max_el -= new_max_el % A_BUNCH;
*my_list = realloc(*my_list, new_max_el * el_size);
if (! *my_list)
sensors_fatal_error(__func__,
"Allocating new elements");
*max_el = new_max_el;
}
memcpy(((char *)*my_list) + *num_el * el_size, els, el_size * nr_els);
*num_el += nr_els;
}
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