NetMQ.Sockets.SubscriberSocket.SubscribeToAnyTopic C# (CSharp) Метод

        public virtual void SubscribeToAnyTopic()
        {
            Subscribe(string.Empty);
        }

        public void RequestResponseMultipartMessageWithRetryFails()
        {
            const string address = "tcp://127.0.0.1:50002";
            const string pubAddress = "tcp://127.0.0.1:60002";
            const int numTries = 5;
            var requestTimeout = TimeSpan.FromMilliseconds(100);
            var requestMessage = new NetMQMessage(1);
            requestMessage.Append("Hi");

            using (var progressPublisher = new PublisherSocket(pubAddress))
            using (var progressSubscriber = new SubscriberSocket(pubAddress))
            using (var server = new RouterSocket(address))
            {
                progressSubscriber.SubscribeToAnyTopic();
                var progressProactor = new NetMQProactor(progressSubscriber, (socket, message) =>
                    Console.WriteLine("C: {0} {1:ss.fff}", message[0].ConvertToString(), DateTime.Now));

                var serverProactor = new NetMQProactor(server, (socket, message) =>
                {
                    Console.WriteLine("ResponseEcho recieved message {0} at {1:ss.fff}", message[2].ConvertToString(),
                        DateTime.Now);
                });

                using (serverProactor)
                using (progressProactor)
                {
                    var responseMessage = RequestSocket.RequestResponseMultipartMessageWithRetry(address, requestMessage,
                        numTries, requestTimeout, progressPublisher);
                    Assert.IsNull(responseMessage);
                }
            }
        }