size_t new_space = tracked_fds_list_space + TRACKFDS_REALLOC_STEP;
int *tmp = realloc(tracked_fds_list,
sizeof(*tracked_fds_list) * new_space);
size_t new_space = tracked_fds_list_space + TRACKFDS_REALLOC_STEP;
int *tmp = realloc(tracked_fds_list,
sizeof(*tracked_fds_list) * new_space);