Question

我正在尝试使用ZeroMQ在VS中实现 ROUTER / ROUTER 模式，而我似乎无法让这件事发挥作用。据我所知，我知道服务器工作正常，因为我尝试使用其他类型的客户端套接字没有任何问题。但是当它成为ROUTER时，它不起作用。

有人会知道如何修复客户端吗？

我的代码如下：

static string ip = "127.0.0.1";
static string port = "5555";
static string endpoint = string.Format("tcp://{0}:{1}", ip, port);

static void Main(string[] args)
    {
        Task.Factory.StartNew(StartRouterServer,TaskCreationOptions.LongRunning);
        Task.Factory.StartNew(() => StartRouterClient(0), TaskCreationOptions.LongRunning);

        Thread.Sleep(10000000);
    }

static void StartRouterClient(int i)
    {
        using (ZContext context = new ZContext())
        using (ZSocket router = new ZSocket(context, ZSocketType.ROUTER))
        {
            router.IdentityString = "client: " + i;
            router.Connect(endpoint);
            //send message
            router.SendMore(new ZFrame(router.IdentityString));
            router.SendMore(new ZFrame());
            router.Send(new ZFrame("Hi"));

            using (ZMessage received = router.ReceiveMessage())
            {//on receiving a reply from the server, you come here.
                Console.WriteLine("Received a message back from the server!!");
            }
        }
    }

static void StartRouterServer()
    {
        using (ZContext context = new ZContext())
        using (ZSocket router = new ZSocket(context, ZSocketType.ROUTER))
        {
            router.IdentityString = "router";
            router.Bind(endpoint);
            Console.WriteLine("The server is bound to {0}", router.LastEndpoint);

            while (true)
            {
                using (ZMessage received = router.ReceiveMessage())
                {//what you do when you receive the message.
                    Console.WriteLine("received a message!");
                    router.SendMore(received[0]);
                    router.SendMore(new ZFrame());
                    router.Send(new ZFrame("Hi back!!"));
                }
            }
        }
    }

Answer 1

在服务器套接字绑定到端口5555之前，可能会创建客户端套接字并尝试发送。如果发生这种情况，客户端套接字将丢弃该消息。

尝试在In [32]: pd.date_range(df.beginning_date.min(), df.end_date.max()) Out[32]: DatetimeIndex(['2009-12-14', '2009-12-15', '2009-12-16', '2009-12-17', '2009-12-18', '2009-12-19', '2009-12-20', '2009-12-21', '2009-12-22', '2009-12-23', ... '2013-12-23', '2013-12-24', '2013-12-25', '2013-12-26', '2013-12-27', '2013-12-28', '2013-12-29', '2013-12-30', '2013-12-31', '2014-01-01'], dtype='datetime64[ns]', length=1480, freq='D')的调用之间添加 Thread.Sleep( 1000 ) ，以允许创建服务器套接字时间并绑定。

_{（我在python中编写了一个类似的代码，只要在客户端连接并发送之前服务器套接字肯定被绑定，它就可以工作。）}

Answer 2

好的，恩，我搞砸了这个问题。对于这种模式，每个路由器都需要知道彼此的身份。这就是它的工作方式。即在StartRouterClient（）方法中，我不得不替换router.SendMore(new ZFrame(router.IdentityString)); 与router.SendMore(server.IdentityString);

为什么无法使ZeroMQ ROUTER / ROUTER模式起作用？

2 个答案: