function list_containers_info($limit=0, $marker=NULL)
    {
        list($status, $reason, $container_info) = 
                $this->cfs_http->list_containers_info($limit, $marker);
        #if ($status == 401 && $this->_re_auth()) {
        #    return $this->list_containers_info($limit, $marker);
        #}
        if ($status < 200 || $status > 299) {
            throw new InvalidResponseException(
                "Invalid response (".$status."): ".$this->cfs_http->get_error());
        }
        return $container_info;
    }