function bp_links_recent_activity_item_ids_for_user($user_id = false)
{
    global $bp;
    if (!$user_id) {
        $user_id = $bp->displayed_user->id ? $bp->displayed_user->id : $bp->loggedin_user->id;
    }
    return BP_Links_Link::get_activity_recent_ids_for_user($user_id);
}