Function append_obj_to_tail

libCacheSim/cache/cacheObj.c:210–229

* append the object to the tail of the doubly linked list * the object is not in the list, otherwise, use move_obj_to_tail * @param head * @param tail * @param cache_obj */

 * @param cache_obj
 */
void append_obj_to_tail(cache_obj_t **head, cache_obj_t **tail,
                        cache_obj_t *cache_obj) {

  cache_obj->queue.next = NULL;
  cache_obj->queue.prev = *tail;

  if (head != NULL && *head == NULL) {
    // the list is empty
    DEBUG_ASSERT(*tail == NULL);
    *head = cache_obj;
  }

  if (*tail != NULL) {
    // the list has at least one element
    (*tail)->queue.next = cache_obj;
  }


  *tail = cache_obj;
}