平滑重启相关

$worker->onMessage = [new \Api\Handler, 'Do'];

$controller = explode('/', $request->path)[1] ?? '';
/ ** code */
$class = "\\Api\\Func\\{$controller}";
$connection->send(call_user_func([ new $class(), 'main']));

$worker->onMessage = [new \Api\Handler, 'Do'];

$worker->onWorkerStart = function($worker){
    $worker->onMessage = [new \Api\Handler, 'Do'];
};