public function onStart(Server $server)
    {
        \file_put_contents($this->serverSetting['pfile'], $server->master_pid . ',' . $server->manager_pid);

        ProcessHelper::setProcessTitle($this->serverSetting['pname'] . ' master process (' . $this->scriptFile . ')');

        $this->fireServerEvent(SwooleEvent::ON_START, [$server]);
    }