circuitpython/py/malloc.c

57 lines
1.2 KiB
C

#include <stdio.h>
#include <stdlib.h>
#include "misc.h"
static int total_bytes_allocated = 0;
void *m_malloc(int num_bytes) {
if (num_bytes == 0) {
return NULL;
}
void *ptr = malloc(num_bytes);
if (ptr == NULL) {
printf("could not allocate memory, allocating %d bytes\n", num_bytes);
return NULL;
}
total_bytes_allocated += num_bytes;
return ptr;
}
void *m_malloc0(int num_bytes) {
if (num_bytes == 0) {
return NULL;
}
void *ptr = calloc(1, num_bytes);
if (ptr == NULL) {
printf("could not allocate memory, allocating %d bytes\n", num_bytes);
return NULL;
}
total_bytes_allocated += num_bytes;
return ptr;
}
void *m_realloc(void *ptr, int old_num_bytes, int new_num_bytes) {
if (new_num_bytes == 0) {
free(ptr);
return NULL;
}
ptr = realloc(ptr, new_num_bytes);
if (ptr == NULL) {
printf("could not allocate memory, reallocating %d bytes\n", new_num_bytes);
return NULL;
}
total_bytes_allocated += new_num_bytes;
return ptr;
}
void m_free(void *ptr, int num_bytes) {
if (ptr != NULL) {
free(ptr);
}
}
int m_get_total_bytes_allocated(void) {
return total_bytes_allocated;
}