public static extern nl_cache *nl_cache_clone(nl_cache *cache);
public static extern int nl_cache_request_full_dump(nl_sock *sk, nl_cache *cache);
public static extern nl_cache_ops *nl_cache_get_ops(nl_cache *cache);
public static extern int nl_cache_pickup(nl_sock *sk, nl_cache *cache);
public static extern int nl_cache_refill(nl_sock *sk, nl_cache *cache);
public static extern int nl_cache_parse_and_add(nl_cache *cache, nl_msg *msg);
public static extern int nl_cache_nitems(nl_cache *cache);
public static extern int nl_cache_nitems_filter(nl_cache *cache, nl_object *filter);
public static extern int nl_cache_move(nl_cache *cache, nl_object *obj);
public static extern int nl_cache_is_empty(nl_cache *cache);