private static function get_struct ($message, $level) {
		if (self::$machine === null) {
			self::$machine = (isset ($_SERVER['SERVER_ADDR'])) ? $_SERVER['SERVER_ADDR'] : 'localhost';
		}

		$dt = new \DateTime ('now', new \DateTimeZone (self::$timezone));

		return array (
			'machine' => self::$machine,
			'date' => $dt->format (self::$date_format),
			'level' => $level,
			'message' => $message
		);
	}