workerman怎么判断连接状态

1. 运行环境

windows 10，php 7.3，workerman 4.1，laravel 8

2. 问题描述？

需要做一个实时更新的报价盘，前端用websockt连接服务器，连接成功后每秒给前端发送最新的数据，但是服务器是windows，在laravel中用workerman的Timer类报错pcntl_alarm()未被定义，然后考虑用while sleep循环，但是在postman测试时发现连接断开，循环还在不停推送，不知道怎么实时检测连接是否断开，然后停掉循环，是哪里用法不对嘛，新手菜鸡，希望大佬指点一下。

Command

<?php
namespace App\Console\Commands;
use GuzzleHttp\Client;
use Illuminate\Console\Command;
use Workerman\Connection\TcpConnection;
use Workerman\Worker;

class websocket extends Command
{
    protected $signature = 'websocket';
    protected $description = 'websocket';
    public function __construct()
    {
        parent::__construct();
    }

    public function handle()
    {
        $ws_worker = new Worker("websocket://0.0.0.0:8080");
        $ws_worker->name = 'WebsocketWorker';
        $ws_worker->onMessage = function(TcpConnection $connection, $data){
            while (true) {
               if ($connection->getStatus()!==TcpConnection::STATUS_ESTABLISHED){
                    break;
                }
                $data = $this->GetGoldPrictOne();
                if ($data) {
                    $connection->send(json_encode($data));
                }
                sleep(1);
            }
        };
        $ws_worker->onConnect = function(TcpConnection $connection) {
            $connection->send('Welcome to the WebSocket server!');
        };
        $ws_worker->onClose = function(TcpConnection $connection) {
            echo "Connection closed\n";
        };
        Worker::runAll();
        $this->info('WebSocket server started successfully.');
    }