/**
* Contiguously allocates enough space for count objects that are size bytes
* of memory each and returns a pointer to the allocated memory.
*
* The allocated memory is filled with bytes of value zero.
*
* @param count number of objects to allocate
* @param size size of the objects to allocate
* @return pointer to allocated memory / NULL pointer if there is an error
*/
void *pvPortCalloc(mem_size_t count, mem_size_t size)
{
  void *p;

  /* allocate 'count' objects of size 'size' */
  p = OS_Malloc(count * size);
  if (p) {
    /* zero the memory */
    memset(p, 0, count * size);
  }
  return p;
}