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/*
* ndpi_memory.c
*
* Copyright (C) 2011-23 - ntop.org
*
* This file is part of nDPI, an open source deep packet inspection
* library based on the OpenDPI and PACE technology by ipoque GmbH
*
* nDPI 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 3 of the License, or
* (at your option) any later version.
*
* nDPI 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 Lesser General Public License
* along with nDPI. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#define NDPI_CURRENT_PROTO NDPI_PROTOCOL_UNKNOWN
#include "ndpi_config.h"
#include "ndpi_api.h"
/* ****************************************** */
static void *(*_ndpi_malloc)(size_t size);
static void (*_ndpi_free)(void *ptr);
static volatile long int ndpi_tot_allocated_memory;
/* ****************************************** */
void set_ndpi_malloc(void *(*__ndpi_malloc)(size_t size)) {
_ndpi_malloc = __ndpi_malloc;
}
void set_ndpi_free(void (*__ndpi_free)(void *ptr)) {
_ndpi_free = __ndpi_free;
}
/* ****************************************** */
u_int32_t ndpi_get_tot_allocated_memory() {
return(__sync_fetch_and_add(&ndpi_tot_allocated_memory, 0));
}
/* ****************************************** */
void *ndpi_malloc(size_t size) {
__sync_fetch_and_add(&ndpi_tot_allocated_memory, size);
return(_ndpi_malloc ? _ndpi_malloc(size) : malloc(size));
}
/* ****************************************** */
void *ndpi_calloc(unsigned long count, size_t size) {
size_t len = count * size;
void *p = _ndpi_malloc ? _ndpi_malloc(len) : malloc(len);
if(p) {
memset(p, 0, len);
__sync_fetch_and_add(&ndpi_tot_allocated_memory, len);
}
return(p);
}
/* ****************************************** */
void ndpi_free(void *ptr) {
if(_ndpi_free) {
if(ptr)
_ndpi_free(ptr);
} else {
if(ptr)
free(ptr);
}
}
/* ****************************************** */
void *ndpi_realloc(void *ptr, size_t old_size, size_t new_size) {
void *ret = ndpi_malloc(new_size);
if(!ret)
return(ret);
else {
if(ptr != NULL) {
memcpy(ret, ptr, (old_size < new_size ? old_size : new_size));
ndpi_free(ptr);
}
return(ret);
}
}
/* ****************************************** */
char *ndpi_strdup(const char *s) {
if(s == NULL ){
return NULL;
}
int len = strlen(s);
char *m = ndpi_malloc(len + 1);
if(m) {
memcpy(m, s, len);
m[len] = '\0';
}
return(m);
}
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