public function onUpdate($old)
    {
        if (!Daemon::$process instanceof Master || (Daemon::$config->autoreload->value === 0) || !$old) {
            return;
        }

        $e = explode(';', $old);
        foreach ($e as $path) {
            Daemon::$process->fileWatcher->rmWatch($path, [Daemon::$process, 'sighup']);
        }

        $e = explode(';', $this->value);
        foreach ($e as $path) {
            Daemon::$process->fileWatcher->addWatch($path, [Daemon::$process, 'sighup']);
        }
    }