public void MultipleSubscriptions()
        {
            using (var pub = new XPublisherSocket())
                using (var sub = new XSubscriberSocket())
                {
                    var port = pub.BindRandomPort("tcp://127.0.0.1");
                    sub.Connect("tcp://127.0.0.1:" + port);

                    sub.SendFrame(new byte[] { 1, (byte)'C' });
                    sub.SendFrame(new byte[] { 1, (byte)'B' });
                    sub.SendFrame(new byte[] { 1, (byte)'A' });
                    sub.SendFrame(new byte[] { 1, (byte)'D' });
                    sub.SendFrame(new byte[] { 1, (byte)'E' });

                    Thread.Sleep(500);

                    sub.SendFrame(new byte[] { 0, (byte)'C' });
                    sub.SendFrame(new byte[] { 0, (byte)'B' });
                    sub.SendFrame(new byte[] { 0, (byte)'A' });
                    sub.SendFrame(new byte[] { 0, (byte)'D' });
                    sub.SendFrame(new byte[] { 0, (byte)'E' });

                    Thread.Sleep(500);
                }
        }
        public void MultipleSubscribers()
        {
            using (var pub = new XPublisherSocket())
                using (var sub = new XSubscriberSocket())
                    using (var sub2 = new XSubscriberSocket())
                    {
                        var port = pub.BindRandomPort("tcp://127.0.0.1");

                        sub.Connect("tcp://127.0.0.1:" + port);
                        sub.SendFrame(new byte[] { 1, (byte)'A' });
                        sub.SendFrame(new byte[] { 1, (byte)'A', (byte)'B' });
                        sub.SendFrame(new byte[] { 1, (byte)'B' });
                        sub.SendFrame(new byte[] { 1, (byte)'C' });

                        sub2.Connect("tcp://127.0.0.1:" + port);
                        sub2.SendFrame(new byte[] { 1, (byte)'A' });
                        sub2.SendFrame(new byte[] { 1, (byte)'A', (byte)'B' });
                        sub2.SendFrame(new byte[] { 1, (byte)'C' });

                        Thread.Sleep(500);

                        pub.SendMoreFrame("AB");
                        pub.SendFrame("1");

                        Assert.AreEqual("AB", sub.ReceiveMultipartStrings().First(), "First subscriber is expected to receive the message");

                        Assert.AreEqual("AB", sub2.ReceiveMultipartStrings().First(), "Second subscriber is expected to receive the message");
                    }
        }
Esempio n. 3
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        protected override async Task ExecuteAsync(CancellationToken stoppingToken)
        {
            try
            {
                _logger.LogInformation("XPub/XSub starting...");
                using var _publisher = new XPublisherSocket($"@tcp://127.0.0.1:4444");
                _logger.LogInformation($"XPub at 127.0.0.1:4444.");
                using var _subscriber = new XSubscriberSocket($"@tcp://127.0.0.1:5555");
                _logger.LogInformation($"XSub at 127.0.0.1:5555.");
                var proxy = new Proxy(_subscriber, _publisher);
                var t     = Task.Factory.StartNew(_ => {
                    try
                    {
                        proxy.Start();
                    }
                    catch (Exception e)
                    {
                        _logger.LogError(e, "ERROR in Proxy Task");
                    }
                }, TaskCreationOptions.LongRunning);
                await Task.Delay(-1, stoppingToken).ContinueWith(_ => { });

                proxy.Stop();
                await t; // to avoid proxy accessing disposed objects
            }
            catch (Exception e)
            {
                _logger.LogError(e, "ERROR in Worker");
            }
            finally
            {
                _logger.LogInformation("XPub/XSub terminating");
            }
        }
Esempio n. 4
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        private void Run(PairSocket shim)
        {
            using (m_publisherSocket = new XPublisherSocket(m_address))
            {
                m_publisherSocket.SetWelcomeMessage(WelcomeMessage);

                m_publisherSocket.ReceiveReady += DropPublisherSubscriptions;

                m_heartbeatTimer          = new NetMQTimer(HeartbeatInterval);
                m_heartbeatTimer.Elapsed += OnHeartbeatTimerElapsed;

                shim.ReceiveReady += OnShimMessage;

                // signal the actor that the shim is ready to work
                shim.SignalOK();

                m_poller = new NetMQPoller {
                    m_publisherSocket, shim
                };
                m_poller.Add(m_heartbeatTimer);

                // Polling until poller is cancelled
                m_poller.Run();
            }
        }
Esempio n. 5
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        private void Run(PairSocket shim)
        {
            _shim = shim;
            using (_publisherSocket = new XPublisherSocket())
            {
                _publisherSocket.SetWelcomeMessage(WelcomeMessage);
                _publisherSocket.Bind(_address);

                _publisherSocket.ReceiveReady += DropPublisherSubscriptions;

                _heartbeatTimer          = new NetMQTimer(_heartbeatInterval);
                _heartbeatTimer.Elapsed += OnHeartbeatTimerElapsed;

                if (_receiveTimeout > 0)
                {
                    _receiveTimeoutTimer          = new NetMQTimer(1000);
                    _receiveTimeoutTimer.Enable   = false;
                    _receiveTimeoutTimer.Elapsed += OnReceiveTimeout;;
                }

                shim.ReceiveReady += OnShimMessage;

                // signal the actor that the shim is ready to work
                shim.SignalOK();

                _poller = new NetMQPoller {
                    _publisherSocket, shim, _heartbeatTimer, _receiveTimeoutTimer
                };
                // Polling until poller is cancelled
                _poller.Run();
            }
        }
        public void TopicPubSub()
        {
            using (var pub = new XPublisherSocket())
                using (var sub = new XSubscriberSocket())
                {
                    var port = pub.BindRandomPort("tcp://127.0.0.1");
                    sub.Connect("tcp://127.0.0.1:" + port);
                    sub.SendFrame(new byte[] { 1, (byte)'A' });

                    // let the subscriber connect to the publisher before sending a message
                    Thread.Sleep(500);

                    var msg = pub.ReceiveFrameBytes();
                    Assert.AreEqual(2, msg.Length);
                    Assert.AreEqual(1, msg[0]);
                    Assert.AreEqual('A', msg[1]);

                    pub.SendMoreFrame("A");
                    pub.SendFrame("Hello");

                    bool more;

                    Assert.AreEqual("A", sub.ReceiveFrameString(out more));
                    Assert.IsTrue(more);

                    Assert.AreEqual("Hello", sub.ReceiveFrameString(out more));
                    Assert.False(more);
                }
        }
Esempio n. 7
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        public void Start()
        {
            ManualResetEvent mre = new ManualResetEvent(false);

            // NetMQ.Bind to Publish and Subscribe addresses
            Task.Factory.StartNew(() =>
            {
                using (_toSocket = new XPublisherSocket())
                    using (_fromSocket = new XSubscriberSocket())
                    {
                        _toSocket.Bind(_toAddress);
                        _fromSocket.Bind(_fromAddress);

                        _proxy = new Proxy(_fromSocket, _toSocket);

                        mre.Set();

                        // This method is blocking, so important to set the ManualResetEvent before this.
                        _proxy.Start();
                    }
            });

            // Wait until the message host is actually started before returning
            mre.WaitOne(-1);
        }
        public void Unsubscribe()
        {
            using (var pub = new XPublisherSocket())
                using (var sub = new XSubscriberSocket())
                {
                    var port = pub.BindRandomPort("tcp://127.0.0.1");
                    sub.Connect("tcp://127.0.0.1:" + port);
                    sub.SendFrame(new byte[] { 1, (byte)'A' });

                    // let the subscriber connect to the publisher before sending a message
                    Thread.Sleep(500);

                    pub.SendMoreFrame("A");
                    pub.SendFrame("Hello");

                    bool more;

                    Assert.AreEqual("A", sub.ReceiveFrameString(out more));
                    Assert.IsTrue(more);

                    Assert.AreEqual("Hello", sub.ReceiveFrameString(out more));
                    Assert.False(more);

                    sub.SendFrame(new byte[] { 0, (byte)'A' });

                    Thread.Sleep(500);

                    pub.SendMoreFrame("A");
                    pub.SendFrame("Hello");

                    string str;
                    Assert.IsFalse(sub.TryReceiveFrameString(out str));
                }
        }
Esempio n. 9
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        public static void Run()
        {
            using (var publisherSocket = new XPublisherSocket())
            {
                publisherSocket.SetWelcomeMessage("WM");
                publisherSocket.Bind("tcp://*:6669");

                // we just drop subscriptions
                publisherSocket.ReceiveReady += (sender, eventArgs) => publisherSocket.SkipMultipartMessage();

                var poller = new NetMQPoller {
                    publisherSocket
                };

                // send a message every second
                var sendMessageTimer = new NetMQTimer(1000);
                poller.Add(sendMessageTimer);
                sendMessageTimer.Elapsed +=
                    (sender, eventArgs) =>
                    publisherSocket.SendMoreFrame("A").SendFrame(new Random().Next().ToString());

                // send heartbeat every two seconds
                var heartbeatTimer = new NetMQTimer(2000);
                poller.Add(heartbeatTimer);
                heartbeatTimer.Elapsed += (sender, eventArgs) => publisherSocket.SendFrame("HB");

                poller.Stop();
            }
        }
Esempio n. 10
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        private static void Intermediary()
        {
            using var xpubSocket = new XPublisherSocket("@tcp://localhost:1234");
            using var xsubSocket = new XSubscriberSocket("@tcp://127.0.0.1:5678");
            Console.WriteLine("Intermediary started, and waiting for messages");
            // proxy messages between frontend / backend
            var proxy = new Proxy(xsubSocket, xpubSocket);

            // blocks indefinitely
            proxy.Start();
        }
Esempio n. 11
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        private void ProxyThread()
        {
            if (_disposeCount != 0)
            {
                _traces.Debug("IpcEventProxy: disposed before start.");
                return;
            }
            XSubscriberSocket xsub = null;
            XPublisherSocket  xpub = null;

            try
            {
                xsub = _context.CreateXSubscriberSocket();
                xpub = _context.CreateXPublisherSocket();

                xsub.Bind(_xSubscriberAddress);
                xpub.Bind(_xPublisherAddress);
                var xproxy = new Proxy(xpub, xsub, null);
                _traces.Debug("IpcEventProxy: started (pub->xsub {0} <=> {1} xpub<-sub)", _xSubscriberAddress, _xPublisherAddress);
                xproxy.Start();
                _traces.Debug("IpcEventProxy: stopped.");
            }
            catch (NetMQException ex)
            {
                if (_disposeCount == 0 && !(ex is TerminatingException))
                {
                    _isFaultedState = true;
                    _traces.Error(ex, "Error while IpcEventProxy starting or during operation.");
                    var handler = FaultedState;
                    if (handler != null)
                    {
                        try
                        {
                            handler(this, EventArgs.Empty);
                        }
                        catch (Exception ex2)
                        {
                            _traces.Error(ex2);
                        }
                    }
                }
            }
            finally
            {
                if (xsub != null)
                {
                    _traces.CaptureMqExceptions(xsub.Dispose);
                }
                if (xpub != null)
                {
                    _traces.CaptureMqExceptions(xpub.Dispose);
                }
            }
        }
Esempio n. 12
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        public IMessageBroker Startup()
        {
            if (IsStarted)
            {
                return(this);
            }
            var cancellationTokenSource = _cancellationTokenSource = new CancellationTokenSource();

            _proxyTask = Task.Run(() =>
            {
                var address    = _configuration.GetAddress();
                var pubAddress = $"@{_configuration.Schema}://{address}:{_configuration.XPubPort}";
                var subAddress = $"@{_configuration.Schema}://{address}:{_configuration.XSubPort}";
#if DEBUG
                System.Diagnostics.Debug.WriteLine($"[{nameof( MessageBroker )}]XPub listening on: {pubAddress}");
                System.Diagnostics.Debug.WriteLine($"[{nameof( MessageBroker )}]XSub listening on: {subAddress}");
#endif
                using (var xpubSocket = new XPublisherSocket(pubAddress))
                    using (var xsubSocket = new XSubscriberSocket(subAddress))
                        using (var controlIn = new DealerSocket("@inproc://control-in"))
                            using (var controlOut = new DealerSocket("@inproc://control-out"))
                                using (var controlInRecv = new DealerSocket(">inproc://control-in"))
                                    using (var controlOutRecv = new DealerSocket(">inproc://control-out"))
                                    {
                                        Task.Run(() =>
                                        {
                                            while (!cancellationTokenSource.IsCancellationRequested)
                                            {
                                                try
                                                {
                                                    var topic           = controlInRecv.ReceiveFrameString();
                                                    var timestamp_bytes = controlInRecv.ReceiveFrameBytes();
                                                    var timestamp_int64 = BitConverter.ToInt64(timestamp_bytes, 0);
                                                    var timestamp       = new DateTimeOffset(timestamp_int64, TimeSpan.FromMinutes(0));
                                                    var message         = controlInRecv.ReceiveFrameString();
                                                    var wrapper         = new MessageWrapper(topic, message, timestamp);
                                                    Logger?.LogReceive(wrapper);
                                                }
                                                catch (System.ObjectDisposedException)
                                                {
                                                    return;
                                                }
                                            }
                                        }, cancellationTokenSource.Token);
                                        //proxy messages between frontend / backend
                                        var proxy = _proxy = new Proxy(xsubSocket, xpubSocket, controlIn, controlOut);
                                        //WARNING:blocks indefinitely.
                                        proxy.Start();
                                    }
            }, cancellationTokenSource.Token);
            return(this);
        }
Esempio n. 13
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        public void Run()
        {
            using (var xPubSocket = new XPublisherSocket("@" + Addresses.BuildFullAddress(Addresses.TCPLocalHost, Addresses.PublisherPort)))
                using (var xSubSocket = new XSubscriberSocket("@" + Addresses.BuildFullAddress(Addresses.TCPLocalHost, Addresses.SubscriberPort)))
                {
                    Console.WriteLine("Intermediary broker started, and waiting for messages");

                    // proxy messages between frontend / backend
                    var proxy = new Proxy(xPubSocket, xSubSocket);

                    // blocks indefinitely
                    proxy.Start();
                }
        }
Esempio n. 14
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        public static void Main(string[] args)
        {
            using (var xsubSocket = new XSubscriberSocket("@tcp://*:1234"))
                using (var xpubSocket = new XPublisherSocket("@tcp://*:5678"))
                {
                    Console.WriteLine("Intermediary started, and waiting for messages");

                    // proxy messages between frontend / backend
                    var proxy = new NetMQ.Proxy(xsubSocket, xpubSocket);

                    // blocks indefinitely
                    proxy.Start();
                }
        }
Esempio n. 15
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        public void ThroughXPubXSubWithReconnectingPublisher()
        {
            using (var xpub = new XPublisherSocket())
                using (var xsub = new XSubscriberSocket())
                    using (var poller = new NetMQPoller {
                        xsub, xpub
                    })
                    {
                        var xPubPort = (ushort)xpub.BindRandomPort("tcp://*");
                        var xSubPort = (ushort)xsub.BindRandomPort("tcp://*");

                        var proxy = new Proxy(xsub, xpub, poller: poller);
                        proxy.Start();

                        poller.RunAsync();

                        // long running subscriber
                        using (var sub = new SubscriberSocket())
                        {
                            sub.Connect(string.Format("tcp://localhost:{0}", xPubPort));
                            sub.Subscribe("A");

                            // publisher 1
                            using (var pub = new PublisherSocket())
                            {
                                pub.Connect(string.Format("tcp://localhost:{0}", xSubPort));
                                // give the publisher a chance to learn of the subscription
                                Thread.Sleep(100);
                                pub.SendMoreFrame("A").SendFrame("1");
                            }

                            // publisher 2
                            using (var pub = new PublisherSocket())
                            {
                                pub.Connect(string.Format("tcp://localhost:{0}", xSubPort));
                                // give the publisher a chance to learn of the subscription
                                Thread.Sleep(100);
                                pub.SendMoreFrame("A").SendFrame("2");
                            }

                            var frames = new List <string>();

                            Assert.True(sub.TryReceiveMultipartStrings(TimeSpan.FromSeconds(1), ref frames));
                            CollectionAssert.AreEqual(new[] { "A", "1" }, frames);

                            Assert.True(sub.TryReceiveMultipartStrings(TimeSpan.FromSeconds(1), ref frames));
                            CollectionAssert.AreEqual(new[] { "A", "2" }, frames);
                        }
                    }
        }
Esempio n. 16
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        public IntermediarySocket(IAddressBinder frontendAddressBinder, IAddressBinder backendAddressBinder,
            XSubscriberSocket frontendSocket, XPublisherSocket backendSocket)
        {
            _frontendAddressBinder = frontendAddressBinder;
            _backendAddressBinder = backendAddressBinder;
            _frontendSocket = frontendSocket;
            _backendSocket = backendSocket;

            _frontendAddressBinder.ConnectOrBindAddress(_frontendSocket);
            _backendAddressBinder.ConnectOrBindAddress(_backendSocket);

            _poller = new Poller(_frontendSocket, _backendSocket);
            _proxy = new Proxy(frontendSocket, backendSocket, poller: _poller);
        }
Esempio n. 17
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        static void Intermediary()
        {
            var a2 = $"{address}:55507";
            var a3 = $"{address}:55508";

            using (var xpubSocket = new XPublisherSocket(a3))
                using (var xsubSocket = new XSubscriberSocket(a2))
                {
                    Console.WriteLine("Intermediary started, and waiting for messages");
                    // proxy messages between frontend / backend
                    var proxy = new Proxy(xsubSocket, xpubSocket);
                    // blocks indefinitely
                    proxy.Start();
                }
        }
Esempio n. 18
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        /// <summary>
        /// 初始化PubSubServer。启动一个Task运行
        /// </summary>
        /// <param name="addr">服务地址。可以运行在不同的PC上进行消息的收发</param>
        /// <param name="publiserPort">pub server port。订阅者连接到这个端口</param>
        /// <param name="subscribePort">sub server port。发布者连接到这个端口</param>
        public void InitServer(int publiserPort, int subscribePort, string addr = "127.0.0.1")
        {
            if (HadInited)
            {
                return;
            }

            _pubSocket = new XPublisherSocket($"@tcp://{addr}:{publiserPort}");
            _subSocket = new XSubscriberSocket($"@tcp://{addr}:{subscribePort}");

            _proxy = new Proxy(_subSocket, _pubSocket);
            Task.Factory.StartNew(_proxy.Start);

            HadInited = true;
        }
Esempio n. 19
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        private void Work()
        {
            using (var subscriberSocket = new XSubscriberSocket())
            {
                subscriberSocket.Bind(_toPublisherEndpoint);

                using (var publisherSocket = new XPublisherSocket())
                {
                    publisherSocket.Bind(_toSubscriberEndpoint);

                    _proxy = new Proxy(subscriberSocket, publisherSocket);
                    _proxy.Start();
                }
            }
        }
Esempio n. 20
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        public void Start()
        {
            using (var xpubSocket = new XPublisherSocket(_settings.PubAddress))
                using (var xsubSocket = new XSubscriberSocket(_settings.SubAddress))
                {
                    // proxy messages between frontend / backend
                    var proxy = new Proxy(xsubSocket, xpubSocket);

                    _logger.LogInformation("Starting Pub/Sub Intermediary ...");
                    _logger.LogInformation("Awaiting Connections ...");

                    // blocks indefinitely
                    proxy.Start();
                }
        }
Esempio n. 21
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        public void NotSubscribed()
        {
            using (var pub = new XPublisherSocket())
                using (var sub = new XSubscriberSocket())
                {
                    var port = pub.BindRandomPort("tcp://127.0.0.1");
                    sub.Connect("tcp://127.0.0.1:" + port);

                    // let the subscriber connect to the publisher before sending a message
                    Thread.Sleep(500);

                    pub.SendFrame("Hello");

                    Assert.IsFalse(sub.TrySkipFrame());
                }
        }
Esempio n. 22
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        public IntermediarySocket(IAddressBinder frontendAddressBinder, IAddressBinder backendAddressBinder,
                                  XSubscriberSocket frontendSocket, XPublisherSocket backendSocket)
        {
            _frontendAddressBinder = frontendAddressBinder;
            _backendAddressBinder  = backendAddressBinder;
            _frontendSocket        = frontendSocket;
            _backendSocket         = backendSocket;

            _frontendAddressBinder.ConnectOrBindAddress(_frontendSocket);
            _backendAddressBinder.ConnectOrBindAddress(_backendSocket);

            _poller = new NetMQPoller {
                _frontendSocket, _backendSocket
            };
            _proxy = new Proxy(frontendSocket, backendSocket, poller: _poller);
        }
Esempio n. 23
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        public virtual void Setup(INetManager netManager)
        {
            if (string.IsNullOrEmpty(PushsocketString))
            {
                throw new ArgumentNullException(nameof(PushsocketString));
            }
            if (string.IsNullOrEmpty(PullSocketString))
            {
                throw new ArgumentNullException(nameof(PullSocketString));
            }
            if (netManager == null)
            {
                throw new ArgumentNullException(nameof(netManager));
            }

            if (!string.IsNullOrEmpty(XPubSocketString) && !string.IsNullOrEmpty(XSubSocketString))
            {
                var PublisherSocket = new XPublisherSocket(XPubSocketString);

                var SubscriberSocket = new XSubscriberSocket(XSubSocketString);

                GlobalServerProxy = new Proxy(SubscriberSocket, PublisherSocket);
            }

            sender         = new PushSocket(PushsocketString);
            responseSocket = new PullSocket(PullSocketString);

            Poller = new NetMQPoller()
            {
                sender,
                responseSocket,
                PushQueue
            };

            NetSend = netManager;

            PushQueue.ReceiveReady += (o, args) =>
            {
                var msg = PushQueue.Dequeue();
                sender.SendMultipartMessage(msg);
            };

            responseSocket.ReceiveReady += ProcessResponse;

            IsSetuped = true;
        }
Esempio n. 24
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        private void Work()
        {
            using (var subscriberSocket = new SubscriberSocket())
            {
                subscriberSocket.Options.ReceiveHighWatermark = 1000;
                subscriberSocket.SubscribeToAnyTopic();
                subscriberSocket.Connect(_toPublisherEndpoint);


                using (var publisherSocket = new XPublisherSocket())
                {
                    publisherSocket.Options.XPubVerbose = true;
                    publisherSocket.Bind(_toSubscribersEndpoint);

                    using (_poller = new NetMQPoller {
                        new NetMQTimer(TimeSpan.FromMilliseconds(1)), subscriberSocket, publisherSocket
                    })
                    {
                        subscriberSocket.ReceiveReady += (s, e) =>
                        {
                            var message = e.Socket.ReceiveMultipartBytes();
                            var topic   = Encoding.UTF8.GetString(message[0]);
                            var payload = message[1];

                            _cache[topic] = payload;

                            publisherSocket.SendMultipartBytes(message);
                        };

                        publisherSocket.ReceiveReady += (s, e) =>
                        {
                            var message = e.Socket.ReceiveFrameBytes();
                            var isSub   = message[0] == 1;
                            var topic   = Encoding.UTF8.GetString(message.Skip(1).ToArray());

                            if (_cache.ContainsKey(topic))
                            {
                                publisherSocket.SendMoreFrame(Encoding.UTF8.GetBytes(topic)).SendFrame(_cache[topic]);
                            }
                        };

                        _poller.Run();
                    }
                }
            }
        }
Esempio n. 25
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        public void WelcomeMessage()
        {
            using (var pub = new XPublisherSocket())
                using (var sub = new SubscriberSocket())
                {
                    pub.Bind("inproc://welcome");
                    pub.SetWelcomeMessage("W");

                    sub.Subscribe("W");
                    sub.Connect("inproc://welcome");

                    var subscription = pub.ReceiveFrameBytes();

                    Assert.AreEqual(subscription[1], (byte)'W');

                    Assert.AreEqual("W", sub.ReceiveFrameString());
                }
        }
Esempio n. 26
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        public void SimplePubSub()
        {
            using (var pub = new XPublisherSocket())
                using (var sub = new XSubscriberSocket())
                {
                    var port = pub.BindRandomPort("tcp://127.0.0.1");
                    sub.Connect("tcp://127.0.0.1:" + port);
                    sub.SendFrame(new byte[] { 1 });

                    // let the subscriber connect to the publisher before sending a message
                    Thread.Sleep(500);

                    pub.SendFrame("Hello");

                    Assert.AreEqual("Hello", sub.ReceiveFrameString(out bool more));
                    Assert.False(more);
                }
        }
Esempio n. 27
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        /// <summary>
        /// Starts the external to local message transfering.
        /// </summary>
        /// <param name="portForSubscribers">The port for local subscribers.</param>
        /// <param name="discoveryEndpoints">The endpoints to perform other brokers discovery.</param>
        private void StartExternalToLocalTransfer(int portForSubscribers, EndpointsRange discoveryEndpoints)
        {
            Task.Run(() =>
            {
                using (var xsubSocket = new XSubscriberSocket())
                    using (var xpubSocket = new XPublisherSocket())
                    {
                        xpubSocket.Bind($"tcp://localhost:{portForSubscribers}");

                        var dynamicSubscriber = new DynamicSubscriber(xsubSocket, discoveryEndpoints);
                        dynamicSubscriber.StartDiscovering();

                        _externalToLocalProxy = new NetMQ.Proxy(xpubSocket, xsubSocket);

                        _externalToLocalProxy.Start();
                    }
            });
        }
Esempio n. 28
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        public void BroadcastEnabled()
        {
            using (var pub = new XPublisherSocket())
                using (var sub1 = new XSubscriberSocket())
                    using (var sub2 = new XSubscriberSocket())
                    {
                        pub.Bind("inproc://manual");
                        pub.Options.XPubBroadcast = true;

                        sub1.Connect("inproc://manual");
                        sub2.Connect("inproc://manual");

                        sub1.SendFrame(new byte[] { 1, (byte)'A' });
                        sub2.SendFrame(new byte[] { 1, (byte)'A' });

                        var payload = new[] { (byte)42 };

                        var msg = new Msg();
                        msg.InitEmpty();

                        // add prefix 2 to the topic, this indicates a broadcast message and it will not be sent to sub1
                        sub1.SendFrame(new byte[] { 2, (byte)'A' }, true);
                        sub1.SendFrame(new byte[] { (byte)42 });
                        var subscription = pub.ReceiveFrameBytes();
                        var topic        = pub.ReceiveFrameBytes();
                        var message      = pub.ReceiveFrameBytes();

                        Assert.AreEqual(2, topic[0]);
                        // we must skip the first byte if we have detected a broadcast message
                        // the sender of this message is already marked for exclusion
                        // but the match logic in Send should work with normal topic.
                        topic = topic.Skip(1).ToArray();

                        pub.SendFrame(topic, true);
                        pub.SendFrame(message);
                        var broadcast2 = sub2.ReceiveFrameBytes();
                        Assert.IsTrue(broadcast2[0] == 65);
                        broadcast2 = sub2.ReceiveFrameBytes();
                        Assert.IsTrue(broadcast2.SequenceEqual(payload));
                        // this message SHOULD NOT be resent to sub1
                        var received = sub1.TryReceive(ref msg, System.TimeSpan.FromMilliseconds(500));
                        Assert.IsFalse(received);
                    }
        }
Esempio n. 29
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 public void Launch()
 {
     try
     {
         using (_xPubSocket = new XPublisherSocket($"@tcp://localhost:{_xPubPort}"))
             using (_xSubSocket = new XSubscriberSocket($"@tcp://localhost:{_xSubPort}"))
             {
                 _xPubSocket.ReceiveReady += _xPubSocket_ReceiveReady;
                 _xSubSocket.ReceiveReady += _xSubSocket_ReceiveReady;
                 var proxy = new Proxy(_xSubSocket, _xPubSocket);
                 Console.WriteLine("Broker started ..");
                 proxy.Start();
             }
     }
     catch (Exception ex)
     {
         Console.WriteLine($"Error : {ex.Message}");
         throw;
     }
 }
Esempio n. 30
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        public void BroadcastDisabled()
        {
            using (var pub = new XPublisherSocket())
                using (var sub1 = new XSubscriberSocket())
                    using (var sub2 = new XSubscriberSocket())
                    {
                        pub.Bind("inproc://manual");
                        pub.Options.XPubBroadcast = false;

                        sub1.Connect("inproc://manual");
                        sub2.Connect("inproc://manual");

                        Thread.Sleep(50);

                        sub1.SendFrame(new byte[] { 1, (byte)'A' });
                        sub2.SendFrame(new byte[] { 1, (byte)'A' });

                        var payload = new[] { (byte)42 };

                        var msg = new Msg();
                        msg.InitEmpty();

                        sub1.SendFrame(new byte[] { (byte)'A' }, true);
                        sub1.SendFrame(new byte[] { (byte)42 });
                        var subscription = pub.ReceiveFrameBytes();
                        var topic        = pub.ReceiveFrameBytes();
                        var message      = pub.ReceiveFrameBytes();

                        pub.SendFrame(topic, true);
                        pub.SendFrame(message);
                        var broadcast2 = sub2.ReceiveFrameBytes();
                        Assert.IsTrue(broadcast2[0] == 65);
                        broadcast2 = sub2.ReceiveFrameBytes();
                        Assert.IsTrue(broadcast2.SequenceEqual(payload));
                        // sub1 should receive a message normally
                        var broadcast1 = sub1.ReceiveFrameBytes();
                        Assert.IsTrue(broadcast1[0] == 65);
                        broadcast1 = sub1.ReceiveFrameBytes();
                        Assert.IsTrue(broadcast1.SequenceEqual(payload));
                    }
        }
Esempio n. 31
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        protected void Dispose(bool disposing)
        {
            if (!_disposedValue)
            {
                if (disposing)
                {
                    _proxy.Stop();
                    _proxy = null;

                    _poller.Dispose();
                    _poller = null;

                    _backendSocket.Dispose();
                    _backendSocket = null;

                    _frontendSocket.Dispose();
                    _frontendSocket = null;
                }

                _disposedValue = true;
            }
        }
Esempio n. 32
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        protected void Dispose(bool disposing)
        {
            if (!_disposedValue)
            {
                if (disposing)
                {
                    _proxy.Stop();
                    _proxy = null;

                    _poller.CancelAndJoin();
                    _poller.Dispose();
                    _poller = null;

                    _backendSocket.Dispose();
                    _backendSocket = null;

                    _frontendSocket.Dispose();
                    _frontendSocket = null;
                }

                _disposedValue = true;
            }
        }
        private void Run(PairSocket shim)
        {
            using (m_publisherSocket = m_context.CreateXPublisherSocket())
            {
                m_publisherSocket.SetWelcomeMessage(WelcomeMessage);
                m_publisherSocket.Bind(m_address);

                m_publisherSocket.ReceiveReady += DropPublisherSubscriptions;

                m_heartbeatTimer = new NetMQTimer(HeartbeatInterval);
                m_heartbeatTimer.Elapsed += OnHeartbeatTimerElapsed;

                shim.ReceiveReady += OnShimMessage;

                // signal the actor that the shim is ready to work
                shim.SignalOK();

                m_poller = new Poller(m_publisherSocket, shim);
                m_poller.AddTimer(m_heartbeatTimer);

                // Polling until poller is cancelled
                m_poller.PollTillCancelled();
            }
        }