private void HandleWork()
{
using (var stateUpdate = new SubscriberSocket())
{
stateUpdate.SubscribeToAnyTopic();
stateUpdate.Bind(_configuration.ToPublisherEndpoint);
using (var stateUpdatePublish = new PublisherSocket())
{
stateUpdatePublish.Bind(_configuration.ToSubscribersEndpoint);
stateUpdate.ReceiveReady += async(s, e) =>
{
var message = e.Socket.ReceiveMultipartMessage();
var subject = message[0].ConvertToString();
var payload = message[1];
var eventId = await _cache.AppendToStream(subject, payload.Buffer);
stateUpdatePublish.SendMoreFrame(message[0].Buffer)
.SendMoreFrame(_serializer.Serialize(eventId))
.SendFrame(payload.Buffer);
};
using (_poller = new NetMQPoller {
stateUpdate, stateUpdatePublish
})
{
_poller.Run();
}
}
}
}
static void Main(string[] args)
{
using (var pubSocket = new PublisherSocket())
{
using (var subSocket = new SubscriberSocket())
{
pubSocket.Bind("tcp://127.0.0.1:55555");
var msg = new BlockedOrderCreated();
// pubSocket.SendMoreFrame("BlockedOrderTopic").SendFrame(msg.content);
Thread.Sleep(500);
subSocket.Connect("tcp://127.0.0.1:55555");
Thread.Sleep(500);
subSocket.Subscribe("BlockedOrderTopic");
pubSocket.SendMoreFrame("BlockedOrderTopic").SendFrame(msg.content);
while (true)
{
Thread.Sleep(500);
var messageReceived = subSocket.ReceiveFrameString();
Thread.Sleep(500);
Debug.WriteLine(messageReceived);
}
}
}
}
private PublisherSocket GetNewPublisherSocket(string addressZeroMq)
{
PublisherSocket publisherSocket;
{
_loggerDelegate?.Invoke(string.Format("Publisher socket binding to: {0}\n", addressZeroMq));
publisherSocket = new PublisherSocket();
// Corner case: wait until publisher socket is ready (see code below that waits for
// "_publisherReadySignal").
NetMQMonitor monitor;
{
// Must ensure that we have a unique monitor name for every instance of this class.
string endPoint = string.Format("inproc://#SubjectNetMQ#Publisher#{0}#{1}", addressZeroMq, Guid.NewGuid().ToString());
monitor = new NetMQMonitor(publisherSocket,
endPoint,
SocketEvents.Accepted | SocketEvents.Listening
);
monitor.Accepted += Publisher_Event_Accepted;
monitor.Listening += Publisher_Event_Listening;
monitor.StartAsync();
}
publisherSocket.Options.SendHighWatermark = this.HighwaterMark;
try
{
publisherSocket.Bind(addressZeroMq);
}
catch (NetMQException ex)
{
// This is usually because the address is in use.
throw new Exception(string.Format("Error E56874. Cannot bind publisher to '{0}'. 95% probability that this is caused by trying to bind a publisher to a port already in use by another process. To fix, choose a unique publisher port for this process. For more on this error, see 'Readme.md' (or the GitHub homepage for NetMQ.ReactiveExtensions).", addressZeroMq), ex);
}
// Corner case: wait until publisher socket is ready (see code below that sets "_publisherReadySignal").
{
Stopwatch sw = Stopwatch.StartNew();
_publisherReadySignal.WaitOne(TimeSpan.FromMilliseconds(3000));
_loggerDelegate?.Invoke(string.Format("Publisher: Waited {0} ms for binding.\n", sw.ElapsedMilliseconds));
}
{
monitor.Accepted -= Publisher_Event_Accepted;
monitor.Listening -= Publisher_Event_Listening;
// Current issue with NegMQ: Cannot stop or dispose monitor, or else it stops the parent socket.
//monitor.Stop();
//monitor.Dispose();
}
}
// Otherwise, the first item we publish may get missed by the subscriber. 500 milliseconds consistently works
// locally, but occasionally fails on the AppVeyor build server. 650 milliseconds is optimal.
using (EventWaitHandle wait = new ManualResetEvent(false))
{
// Cannot use Thread.Sleep() here, as this is incompatible with .NET Core 1.0, Windows 8.0, 8.1, and 10.
wait.WaitOne(TimeSpan.FromMilliseconds(650));
}
return(publisherSocket);
}
public void Run()
{
Task.Run(async() =>
{
using (var pubSocket = new PublisherSocket())
{
Console.WriteLine("Publisher socket binding...");
pubSocket.Options.SendHighWatermark = 1000;
pubSocket.Bind("tcp://localhost:12345");
while (true)
{
var stories = await FetchBestStories();
if (stories != null)
{
Console.WriteLine($"Sending {stories.Count} stories");
pubSocket.SendMoreFrame("Stories").SendFrame(JsonConvert.SerializeObject(stories));
}
await Task.Delay(IntervalSecs * 1000);
}
}
});
}
static void Main(string[] args)
{
Random rand = new Random(50);
using (var pubSocket = new PublisherSocket())
{
Console.WriteLine("Publisher socket binding...");
pubSocket.Options.SendHighWatermark = 100;
pubSocket.Bind("tcp://localhost:12345");
Thread.Sleep(200);
pubSocket.SendMoreFrame("").SendFrame("1231231231313123131231");
//for (var i = 0; i < 300; i++)
//{
// var randomizedTopic = rand.NextDouble();
// if (randomizedTopic > 0.5)
// {
// var msg = "TopicA msg-" + i;
// Console.WriteLine("Sending message : {0}", msg);
// pubSocket.SendMoreFrame("TopicA").SendFrame(msg);
// }
// else
// {
// var msg = "TopicB msg-" + i;
// Console.WriteLine("Sending message : {0}", msg);
// pubSocket.SendMoreFrame("TopicB").SendFrame(msg);
// }
// Thread.Sleep(100);
//}
}
}
public void Start()
{
if (context == null)
{
context = NetMQContext.Create();
publisher = context.CreatePublisherSocket();
publisher.Bind("tcp://*:5252");
receiver = context.CreatePullSocket();
receiver.Bind("tcp://*:5253");
// Start listening..
Task.Run(() =>
{
try
{
while (!tokenSource.IsCancellationRequested)
{
var message = receiver.ReceiveString();
var command = Serialization.DeserializeEnvelope <ContractMarker>(message);
commandReceivedSubject.OnNext(command);
}
}
catch (Exception ex)
{
Tracer.Error(ex);
throw;
}
});
}
}
static void Main(string[] args)
{
var weathers = new string[6] {
"晴朗", "多云", "阴天", "霾", "雨", "雪"
};
Console.WriteLine("发布多个地区天气预报：");
using (var publisher = new PublisherSocket())
{
publisher.Bind("tcp://127.0.0.1:8888");
var rng = new Random();
while (_terminateEvent.WaitOne(1000) == false)
{
var zipcode = rng.Next(0, 10);
var temperature = rng.Next(-50, 50);
var weatherId = rng.Next(0, 5);
var msg = $"{zipcode} {temperature} {weathers[weatherId]}";
publisher.SendFrame(msg);
Console.WriteLine(msg);
Thread.Sleep(1000);
}
}
}
public Kernel(ConnectionInformation connectionInformation)
{
this.connectionInformation = connectionInformation;
// heartbeat
hbSocket = new RouterSocket();
hbSocket.Bind($"{connectionInformation.transport}://{connectionInformation.ip}:{connectionInformation.hb_port}");
// control
controlSocket = new RouterSocket();
controlSocket.Bind($"{connectionInformation.transport}://{connectionInformation.ip}:{connectionInformation.control_port}");
// stdin
stdinSocket = new RouterSocket();
stdinSocket.Bind($"{connectionInformation.transport}://{connectionInformation.ip}:{connectionInformation.stdin_port}");
// iopub
ioSocket = new PublisherSocket();
ioSocket.Bind($"{connectionInformation.transport}://{connectionInformation.ip}:{connectionInformation.iopub_port}");
// shell
shellSocket = new RouterSocket();
shellSocket.Bind($"{connectionInformation.transport}://{connectionInformation.ip}:{connectionInformation.shell_port}");
payload = new List <Payload>();
nugetManager = new NuGetManager(new FileInfo(".").FullName);
executionCount = 0;
lastMessage = null;
headerCode = getHeaderCode();
hmac = new HMACSHA256(Encoding.UTF8.GetBytes(connectionInformation.key));
}
private static void Main()
{
Console.Title = "NetMQ Weather Update Server";
bool stopRequested = false;
// Wire up the CTRL+C handler
Console.CancelKeyPress += (sender, e) => stopRequested = true;
Console.WriteLine("Publishing weather updates...");
using (var publisher = new PublisherSocket())
{
publisher.Bind("tcp://127.0.0.1:5556");
var rng = new Random();
while (!stopRequested)
{
int zipcode = rng.Next(0, 99999);
int temperature = rng.Next(-80, 135);
int relhumidity = rng.Next(0, 90);
publisher.SendFrame(string.Format("{0} {1} {2}", zipcode, temperature, relhumidity));
}
}
}
public ZeroMqPublisher(ILogFactory logFactory, string address)
{
_logger = logFactory.CreateLog(this);
_pubSocket = new PublisherSocket();
_pubSocket.Options.SendHighWatermark = 1000;
_pubSocket.Bind(address);
}
public void RunPipeline(PairSocket shim)
{
publisherSocket = context.CreatePublisherSocket();
publisherSocket.Bind("tcp://*:" + StreamingProtocol.Port);
snapshotSocket = context.CreateResponseSocket();
snapshotSocket.Bind("tcp://*:" + SnapshotProtocol.Port);
snapshotSocket.ReceiveReady += OnSnapshotReady;
shim.ReceiveReady += OnShimReady;
heartbeatTimer = new NetMQTimer(StreamingProtocol.HeartbeatInterval);
heartbeatTimer.Elapsed += OnHeartbeatTimerElapsed;
shim.SignalOK();
poller = new Poller();
poller.AddSocket(shim);
poller.AddSocket(snapshotSocket);
poller.AddTimer(heartbeatTimer);
poller.Start();
publisherSocket.Dispose();
snapshotSocket.Dispose();
}
public void ThreadMQPublishServer()
{
try
{
using (PublisherSocket publishSocket = new PublisherSocket())
{
publishSocket.Bind(MQConfig.PublishServer);
try
{
while (!_cancellationTokenSource.IsCancellationRequested)
{
KeyData item;
if (MQPublishQueue.TryTake(out item))
{
publishSocket.PublisherSend(item);
}
}
}
catch (TerminatingException)
{
}
catch (Exception ex)
{
MQThreadExceptionHandler?.Invoke(ex);
}
}
}
catch (Exception ex)
{
MQThreadExceptionHandler?.Invoke(ex);
}
}
private void PreparePublishing()
{
AsyncIO.ForceDotNet.Force();
pubSocket = new PublisherSocket();
pubSocket.Options.SendHighWatermark = 100;
pubSocket.Bind("tcp://localhost:12344");
}
public Publisher(string address)
{
_context = NetMQContext.Create();
_socket = _context.CreatePublisherSocket();
_socket.Bind(address);
Console.WriteLine("Publisher: bound to {0}", address);
}
/// <summary>
/// Subscribe To Start Auction
/// </summary>
public void subscribeToStartAuctionCmd()
{
// Bind the publisher to the address
_publisher = _context.CreatePublisherSocket();
_publisher.Bind(ConfigurationManager.AppSettings["pubAddr"]);
// Connect to address for StartAuction and subscribe to the topic - StartAuction
var startAuctionSub = _context.CreateSubscriberSocket();
var startAuctionTopic = ConfigurationManager.AppSettings["startAuctionTopic"];
startAuctionSub.Connect(ConfigurationManager.AppSettings["startAuctionAddr"]);
startAuctionSub.Subscribe(startAuctionTopic);
Console.WriteLine("SUB: " + startAuctionTopic);
while (true)
{
string startAuctionCmd = startAuctionSub.ReceiveString();
Console.WriteLine("REC: " + startAuctionCmd);
publishAcknowledgement(startAuctionCmd);
// Extract the ID and get the bidders emails
string id = MessageParser.parseMessage(startAuctionCmd, "<id>", "</id>");
IDatabase database = DatabaseFacade.GetDatabase();
string[] emails = database.getBidderEmails(id);
if (emails != null)
{
publishNotifyBiddersCommand(id, emails);
}
publishAuctionStartedEvent(id);
}
}
public void PubSub_Should_NotCrash_IfNo_Thread_Sleep()
{
using (var pub = new PublisherSocket())
{
using (var sub = new SubscriberSocket())
{
int freePort = TcpPortFree();
pub.Bind("tcp://127.0.0.1:" + freePort);
sub.Connect("tcp://127.0.0.1:" + freePort);
sub.Subscribe("*");
Stopwatch sw = Stopwatch.StartNew();
{
for (int i = 0; i < 50; i++)
{
pub.SendFrame("*"); // Ping.
Console.Write("*");
string topic;
var gotTopic = sub.TryReceiveFrameString(TimeSpan.FromMilliseconds(100), out topic);
string ping;
var gotPing = sub.TryReceiveFrameString(TimeSpan.FromMilliseconds(100), out ping);
if (gotTopic == true)
{
Console.Write("\n");
break;
}
}
}
Console.WriteLine("Connected in {0} ms.", sw.ElapsedMilliseconds);
}
}
}
private void Produce()
{
var eventSerializer = new EventSerializer();
_publisherSocket = new PublisherSocket();
_publisherSocket.Options.SendHighWatermark = 1000;
_publisherSocket.Bind(_producerConfiguration.Endpoint);
while (!_cancel.IsCancellationRequested)
{
var next = Next();
var topic = eventSerializer.Serialize(next);
var message = new TransportMessage()
{
MessageType = next.GetType(),
MessageId = Guid.NewGuid(),
Message = Encoding.UTF32.GetBytes(JsonConvert.SerializeObject(next, _settings)),
};
var msg = Encoding.UTF32.GetBytes(JsonConvert.SerializeObject(message, _settings));
_publisherSocket.SendMoreFrame(topic).SendFrame(msg);
Task.Delay(_rand.Next(250, 500)).Wait();
}
}
private static void StartShellLoop(string shellAddress, string ioPubAddress)
{
ShellRouterSocket.Bind(shellAddress);
Log.Info($"Bound shell server to address {shellAddress}");
ShellPublisherSocket.Bind(ioPubAddress);
Log.Info($"Bound IO pub to address {ioPubAddress}");
while (!StopEvent.Wait(0))
{
var message = GetNextMessage();
Log.Info($"Received message {JsonSerializer.Serialize(message)}");
if (MessageHandlers.TryGetValue(message.Header.MessageType, out IShellMessageHandler handler))
{
Log.Info($"Sending message to {message.Header.MessageType} handler");
handler.HandleMessage(message, ShellRouterSocket, ShellPublisherSocket);
Log.Info("Message handling complete");
}
else
{
Log.Error($"No message handler found for message type {message.Header.MessageType}");
}
}
}
private void Run()
{
using var publisher = new PublisherSocket();
publisher.Bind(@"tcp://127.0.0.1:17232");
using var subscriber = new SubscriberSocket();
subscriber.Bind(@"tcp://127.0.0.1:17233");
subscriber.SubscribeToAnyTopic();
running.Set();
using var server = new TelnetServer(IPAddress.Any, port, publisher, subscriber)
{
OptionReuseAddress = true
};
Log.Information("Server starting ...");
server.Start();
while (running.WaitOne(TimeSpan.Zero))
{
if (subscriber.TryReceiveFrameBytes(TimeSpan.FromMilliseconds(100), out var frame))
{
server.Multicast(frame);
}
}
server.Stop();
Log.Information("Server stopped.");
}
public bool SendMessage()
{
var netMqTimer = new NetMQTimer(100);
var timer = new Timer(180000);
timer.Start();
timer.Elapsed += (sender, args) =>
{
this.Cancel = true;
timer.Stop();
};
using (var publisher = new PublisherSocket())
{
publisher.Bind("tcp://*:3245");
Thread.Sleep(3000);
var rng = new Random();
while (!Cancel)
{
var zipcode = 10001;//rng.Next(0, 99999);
var temperature = rng.Next(-80, 135);
var humidity = rng.Next(0, 90);
publisher.SendFrame($"{zipcode} {temperature} {humidity}");
}
}
return(true);
}
static void Main(string[] args)
{
Random rand = new Random(50);
using (var pubSocket = new PublisherSocket())
{
Console.WriteLine("Publisher socket binding...");
pubSocket.Options.SendHighWatermark = 100;
pubSocket.Bind("tcp://localhost:12345");
Thread.Sleep(200);
pubSocket.SendMoreFrame("").SendFrame("1231231231313123131231");
//for (var i = 0; i < 300; i++)
//{
// var randomizedTopic = rand.NextDouble();
// if (randomizedTopic > 0.5)
// {
// var msg = "TopicA msg-" + i;
// Console.WriteLine("Sending message : {0}", msg);
// pubSocket.SendMoreFrame("TopicA").SendFrame(msg);
// }
// else
// {
// var msg = "TopicB msg-" + i;
// Console.WriteLine("Sending message : {0}", msg);
// pubSocket.SendMoreFrame("TopicB").SendFrame(msg);
// }
// Thread.Sleep(100);
//}
}
}
public void PubSub()
{
ThreadPool.QueueUserWorkItem(state => {
var server = new PublisherSocket();
server.Bind("tcp://*:5557");
while (!_stopLoops)
{
try {
var dataFacadeEvent = new DataFacadeEvent {
State = new List <User> {
new User {
Id = 666
}
}
};
using (var responseStream = new MemoryStream()) {
Serializer.Serialize(responseStream, dataFacadeEvent);
server.SendFrame(responseStream.ToArray());
}
Thread.Sleep(5000);
} catch (Exception e) {
Console.WriteLine(e);
}
}
});
}
public void Start(int feederPort)
{
Random rand = new Random(50);
_feederSocket = new PublisherSocket();
_feederSocket.Options.SendHighWatermark = 1000;
_feederSocket.Bind($"tcp://*:{feederPort}");
/*
* for (var i = 0; i < 100; i++)
* {
* var randomizedTopic = rand.NextDouble();
* if (randomizedTopic > 0.5)
* {
* var msg = "TopicA msg-" + i;
* Console.WriteLine("Sending message : {0}", msg);
* _feederSocket.SendMoreFrame("TopicA").SendFrame(msg);
* }
* else
* {
* var msg = "TopicB msg-" + i;
* Console.WriteLine("Sending message : {0}", msg);
* _feederSocket.SendMoreFrame("TopicB").SendFrame(msg);
* }
* Thread.Sleep(500);
*
* }
*/
}
public async Task ShouldSubscribeToSpecificSubject()
{
using (var publisherSocket = new PublisherSocket())
{
publisherSocket.Bind(ToSubscribersEndpoint);
var createEvent = new Func <string, string, Task>(async(streamId, market) =>
{
var @event = new ChangeCcyPairPrice(streamId, market, 0.0, 0.0, 0.0, 0.0);
var message = _eventSerializer.ToProducerMessage(@event);
var eventId = new EventId(streamId, 0, string.IsNullOrEmpty(market) ? streamId : $"{streamId}.{market}", DateTime.Now.Ticks);
publisherSocket.SendMoreFrame(message.Subject)
.SendMoreFrame(_serializer.Serialize(eventId))
.SendFrame(_serializer.Serialize(message));
await Task.Delay(500);
});
var subscribedToStreamId = "EUR/USD";
var subscribedToMarket = "Harmony";
var NOTsubscribedToStreamId = "EUR/GBP";
var NOTsubscribedToMarket = "FxConnect";
var cacheConfiguration = new DynamicCacheConfiguration(ToSubscribersEndpoint, StateOfTheWorldEndpoint, HeartbeatEndpoint)
{
Subject = $"{subscribedToStreamId}.{subscribedToMarket}",
HeartbeatDelay = TimeSpan.FromSeconds(1),
HeartbeatTimeout = TimeSpan.FromSeconds(1),
};
var cache = new DynamicCache <string, CurrencyPair>(cacheConfiguration, LoggerForTests <DynamicCache <string, CurrencyPair> > .Default(), _eventSerializer);
await cache.Run();
await Task.Delay(1000);
await createEvent(NOTsubscribedToStreamId, NOTsubscribedToMarket);
Assert.AreEqual(0, cache.Items.SelectMany(ccy => ccy.AppliedEvents).Count());
await createEvent(NOTsubscribedToStreamId, subscribedToMarket);
Assert.AreEqual(0, cache.Items.SelectMany(ccy => ccy.AppliedEvents).Count());
await createEvent(subscribedToStreamId, NOTsubscribedToMarket);
Assert.AreEqual(0, cache.Items.SelectMany(ccy => ccy.AppliedEvents).Count());
await createEvent(subscribedToStreamId, subscribedToMarket);
Assert.AreEqual(1, cache.Items.SelectMany(ccy => ccy.AppliedEvents).Count());
await createEvent(subscribedToStreamId, string.Empty);
Assert.AreEqual(1, cache.Items.SelectMany(ccy => ccy.AppliedEvents).Count());
}
}
private static void PublisherSocket()
{
Random rand = new Random(50);
using var pubSocket = new PublisherSocket();
Console.WriteLine("Publisher socket binding...");
pubSocket.Options.SendHighWatermark = 1000;
pubSocket.Bind("tcp://*:12345");
for (var i = 0; i < 100; i++)
{
var randomizedTopic = rand.NextDouble();
if (randomizedTopic > 0.5)
{
var msg = "TopicA msg-" + i;
Console.WriteLine("Sending message : {0}", msg);
pubSocket.SendMoreFrame("TopicA").SendFrame(msg);
}
else
{
var msg = "TopicB msg-" + i;
Console.WriteLine("Sending message : {0}", msg);
pubSocket.SendMoreFrame("TopicB").SendFrame(msg);
}
Thread.Sleep(500);
}
}
public static void Publish()
{
using (var pub = new PublisherSocket())
{
bool usePlain = true;
if (usePlain)
{
pub.Options.PlainUsername = "******";
pub.Options.PlainPassword = "******";
pub.Options.PlainServer = true;
}
pub.Bind("tcp://192.168.0.193:6021");
int i = 0;
while (true)
{
Thread.Sleep(500);
pub.SendMoreFrame("A").SendFrame("Hello - " + i++);
Console.WriteLine("SENDING MESSAGE on port 6021");
}
Console.WriteLine();
Console.Write("Press any key to exit...");
Console.ReadKey();
}
}
private static void Main()
{
Console.Title = "NetMQ Weather Update Server";
bool stopRequested = false;
// Wire up the CTRL+C handler
Console.CancelKeyPress += (sender, e) => stopRequested = true;
Console.WriteLine("Publishing weather updates...");
using (var publisher = new PublisherSocket())
{
publisher.Bind("tcp://127.0.0.1:5556");
var rng = new Random();
while (!stopRequested)
{
int zipcode = rng.Next(0, 99999);
int temperature = rng.Next(-80, 135);
int relhumidity = rng.Next(0, 90);
publisher.SendFrame($"{zipcode} {temperature} {relhumidity}");
}
}
}
public static PublisherSocket CreatePublisherSocket(ushort port)
{
var publisher = new PublisherSocket();
publisher.Bind($"tcp://*:{port}");
return(publisher);
}
public Task StartAsync(CancellationToken cancellationToken)
{
SetupDefaultMimeTypes();
_shell.Bind(_shellAddress);
_ioPubSocket.Bind(_ioPubAddress);
_stdIn.Bind(_stdInAddress);
_control.Bind(_controlAddress);
var kernelIdentity = Guid.NewGuid().ToString();
Task.Run(async() =>
{
using var activity = Log.OnEnterAndExit();
while (!cancellationToken.IsCancellationRequested)
{
var request = _shell.GetMessage();
activity.Info("Received: {message}", request.ToJson());
SetBusy(request);
switch (request.Header.MessageType)
{
case JupyterMessageContentTypes.KernelInfoRequest:
kernelIdentity = Encoding.Unicode.GetString(request.Identifiers[0].ToArray());
HandleKernelInfoRequest(request);
SetIdle(request);
break;
case JupyterMessageContentTypes.KernelShutdownRequest:
SetIdle(request);
break;
default:
var context = new JupyterRequestContext(
_shellChannel,
_ioPubChannel,
_stdInChannel,
request,
kernelIdentity);
await _scheduler.Schedule(context);
await context.Done();
SetIdle(request);
break;
}
}
}, cancellationToken);
void SetBusy(ZeroMQMessage request) => _ioPubChannel.Publish(new Status(StatusValues.Busy), request, kernelIdentity);
void SetIdle(ZeroMQMessage request) => _ioPubChannel.Publish(new Status(StatusValues.Idle), request, kernelIdentity);
return(Task.CompletedTask);
}
internal NetMQSink(string bindingAddress, IFormatProvider formatProvider, bool callNetMqCleanup)
{
publisherSocket = new PublisherSocket();
publisherSocket.Bind(bindingAddress);
fmtProvider = formatProvider;
cleanUpNetMq = callNetMqCleanup;
publisherSocket.Options.Linger = new TimeSpan(0, 0, 5);
}
public void Start(int publishPort)
{
ctx = NetMQContext.Create();
publishSocket = ctx.CreatePublisherSocket();
publishSocket.Bind("tcp://*:" + publishPort);
logger.Info("Message publisher started on port " + publishPort);
}
public void Start(int publishPort)
{
ctx = NetMQContext.Create();
publishSocket = ctx.CreatePublisherSocket();
publishSocket.Bind("tcp://*:" + publishPort);
logger.Info("Message publisher started on port " + publishPort);
}
/// <summary>
/// Add <see cref="IAddress"/> to the socket
/// </summary>
/// <param name="address"><see cref="IAddress"/> to be added</param>
public override void SocketAdd(IAddress address)
{
if (disposedValue)
{
throw new InvalidOperationException("NetMQPublisher has been disposed");
}
socket.Bind(address.ToString());
}
public void InsertNetMQ(string didiStr)
{
using (var pubSocket = new PublisherSocket())
{
pubSocket.Options.SendHighWatermark = 10000;
pubSocket.Bind("tcp://localhost:12345");
Thread.Sleep(500);
pubSocket.SendMoreFrame("").SendFrame(didiStr);
}
}
public ReactiveServer()
{
var context = NetMQContext.Create();
repSocket = context.CreateResponseSocket();
repSocket.Bind("tcp://127.0.0.1:3334");
repSocket.ReceiveReady += RepSocketOnReceiveReady;
var repThread = new Thread(RepThread);
repThread.Start();
pubSocket = context.CreatePublisherSocket();
pubSocket.Bind("tcp://127.0.0.1:3333");
}
static void Main(string[] args)
{
Console.Title = "NetMQ LazyPirate Client 2";
const string serverAddress = "tcp://127.0.0.1:5555";
const string requestString = "Hi";
var requestTimeout = TimeSpan.FromMilliseconds(2500);
var requestRetries = 10;
var requestMessage = new NetMQMessage(1);
requestMessage.Append("Hi");
using (var progressPublisher = new PublisherSocket())
{
const string pubSubAddress = "tcp://127.0.0.1:5556";
progressPublisher.Bind(pubSubAddress);
SubscriberContinuousLoop(pubSubAddress, requestString);
while (true)
{
var responseString = RequestSocket.RequestResponseMultipartMessageWithRetry(serverAddress, requestMessage,
requestRetries, requestTimeout, progressPublisher);
}
}
}
private void SenderWorker()
{
_mqContext = NetMQContext.Create();
_publisherSocket = _mqContext.CreatePublisherSocket();
if (Protocol == "tcp")
_publisherSocket.Connect(_address);
if (Protocol == "pgm") //Multicast
{
_publisherSocket.Options.MulticastHops = 4;
_publisherSocket.Options.MulticastRate = 40 * 1024; // 40 megabit
_publisherSocket.Options.MulticastRecoveryInterval = TimeSpan.FromMinutes(10);
_publisherSocket.Options.SendBuffer = 1024 * 10; // 10 megabyte
_publisherSocket.Bind(_address);
}
_publisherSocket.SendReady += (s, a) => { };
}
/// <summary>
/// the broker setting up the cluster
///
///
/// State 2 ---+ +--- State n
/// | |
/// +----+----+
/// client 1 ---| | |--- worker 1
/// client 2 ---+---- BROKER 1 ----+--- worker 2
/// : | | | :
/// client n ---+ +----+----+ +--- worker n
/// | |
/// BROKER 2 BROKER n
///
/// BROKER 2 and n are not included and must be setup separately
///
/// A minimum of two address must be supplied
/// </summary>
/// <param name="args">[0] = this broker's address
/// [1] = 1st peer's address
/// :
/// [n] = nth peer address</param>
/// <remarks>
/// since "inproc://" is not working in NetMQ we use "tcp://"
/// for each broker we need 5 ports which for this example are
/// assigned as follows (in true life it should be configurable whether
/// they are ports or tcp/ip addresses)
///
/// this brokers address => local frontend binds to tcp://127.0.0.1:5555
/// cloud frontend binds to :5556
/// local backend binds to :5557
/// state backend binds to :5558
/// monitor PULL binds to :5559
///
/// the sockets are connected as follows
///
/// this broker's monitor PUSH connects to tcp://127.0.0.1:5559
///
/// (if peer's address and port is tcp://127.0.0.1:5575)
///
/// this broker's cloud backend connects to :5576
/// this broker's state frontend connects to :5578
///
/// this scheme is fix in this example
/// </remarks>
public static void Main(string[] args)
{
Console.Title = "NetMQ Inter-Broker Router";
const string baseAddress = "tcp://127.0.0.1:";
if (args.Length < 2)
{
Console.WriteLine("usage: program me peer1 [peer]*");
Console.WriteLine("each broker needs 5 port for his sockets!");
Console.WriteLine("place enough distance between multiple broker addresses!");
Environment.Exit(-1);
}
// trapping Ctrl+C as exit signal!
Console.CancelKeyPress += (s, e) =>
{
e.Cancel = true;
s_keepRunning = false;
};
// get random generator for later use
var rnd = new Random();
// get list for registering the clients
var clients = new List<byte[]>(NbrClients);
// get a list of peer addresses
var peers = new List<byte[]>();
// get all peer addresses - first is this broker!
for (var i = 1; i < args.Length; i++)
peers.Add(Encoding.UTF8.GetBytes(args[i]));
// build this broker's address
var me = baseAddress + args[0];
// get the port as integer for later use
var myPort = int.Parse(args[0]);
Console.WriteLine("[BROKER] The broker can be stopped by using CTRL+C!");
Console.WriteLine("[BROKER] setting up sockets ...");
// set up all the addresses needed in the due course
var localFrontendAddress = me;
var cloudFrontendAddress = baseAddress + (myPort + 1);
var localBackendAddress = baseAddress + (myPort + 2);
var stateBackendAddress = baseAddress + (myPort + 3);
var monitorAddress = baseAddress + (myPort + 4);
// create the context and all the sockets
using (var localFrontend = new RouterSocket())
using (var localBackend = new RouterSocket())
using (var cloudFrontend = new RouterSocket())
using (var cloudBackend = new RouterSocket())
using (var stateBackend = new PublisherSocket())
using (var stateFrontend = new SubscriberSocket())
using (var monitor = new PullSocket())
{
// give every socket an unique identity, e.g. LocalFrontend[Port]
SetIdentities(myPort,
localFrontend,
cloudFrontend,
localBackend,
stateBackend,
monitor,
cloudBackend, stateFrontend);
// subscribe to any message on the stateFrontend socket!
stateFrontend.Subscribe("");
// bind the serving sockets
localFrontend.Bind(localFrontendAddress);
cloudFrontend.Bind(cloudFrontendAddress);
localBackend.Bind(localBackendAddress);
stateBackend.Bind(stateBackendAddress);
monitor.Bind(monitorAddress);
// connect sockets to peers
for (var i = 1; i < args.Length; i++)
{
// build the cloud back end address
var peerPort = int.Parse(args[i]);
var address = baseAddress + (peerPort + 1);
Console.WriteLine("[BROKER] connect to cloud peer {0}", address);
// this cloudBackend connects to all peer cloudFrontends
cloudBackend.Connect(address);
// build the state front end address
address = baseAddress + (peerPort + 3);
Console.WriteLine("[BROKER] subscribe to state peer {0}", address);
// this stateFrontend to all peer stateBackends
stateFrontend.Connect(address);
}
// setup the local worker queue for LRU and monitor cloud capacity
var workerQueue = new Queue<byte[]>();
int previousLocalCapacity = 0;
// receive the capacity available from other peer(s)
stateFrontend.ReceiveReady += (s, e) =>
{
// the message should contain the available cloud capacity
var capacity = e.Socket.ReceiveFrameString();
Debug.Assert(string.IsNullOrWhiteSpace(capacity), "StateFrontend: message was empty!");
int couldCapacity;
Debug.Assert(int.TryParse(capacity, out couldCapacity), "StateFrontend: message did not contain a number!");
};
// get the status message and print it
monitor.ReceiveReady += (s, e) =>
{
var msg = e.Socket.ReceiveFrameString();
Console.WriteLine("[MONITOR] {0}", msg);
};
// all local clients are connecting to this socket
// they send a REQ and get a REPLY
localFrontend.ReceiveReady += (s, e) =>
{
// [client adr][empty][message id]
var request = e.Socket.ReceiveMultipartMessage();
// register the local client for later identification if not known
if (!clients.Any(n => AreSame(n, request[0])))
clients.Add(request[0].Buffer);
// if we have local capacity send worker else send to cloud
if (workerQueue.Count > 0)
{
// get the LRU worker adr
var worker = workerQueue.Dequeue();
// wrap message with workers address
var msg = Wrap(worker, request);
// send message to the worker
// [worker adr][empty][client adr][empty][data]
localBackend.SendMultipartMessage(msg);
}
else
{
// get an random index for peers
var peerIdx = rnd.Next(peers.Count - 2) + 2;
// get peers address
var peer = peers[peerIdx];
// wrap message with peer's address
var msg = Wrap(peer, request);
// [peer adr][empty][client adr][empty][data]
cloudBackend.SendMultipartMessage(msg);
}
};
// the workers are connected to this socket
// we get a REPLY either for a cloud client [worker adr][empty][peer adr][empty][peer client adr][empty][data]
// or local client [worker adr][empty][client adr][empty][data]
// or a READY message [worker adr][empty][WORKER_READY]
localBackend.ReceiveReady += (s, e) =>
{
// a worker can send "READY" or a request
// or an REPLAY
var msg = e.Socket.ReceiveMultipartMessage();
// just to make sure we received a proper message
Debug.Assert(msg != null && msg.FrameCount > 0, "[LocalBackend] message was empty or frame count == 0!");
// get the workers identity
var id = Unwrap(msg);
// this worker done in either way so add it to available workers
workerQueue.Enqueue(id);
// if it is NOT a ready message we need to route the message
// it could be a reply to a peer or a local client
// [WORKER_READY] or [client adr][empty][data] or [peer adr][empty][peer client adr][empty][data]
if (msg[0].Buffer[0] != WorkerReady)
{
Debug.Assert(msg.FrameCount > 2, "[LocalBackend] None READY message malformed");
// if the adr (first frame) is any of the clients send the REPLY there
// and send it to the peer otherwise
if (clients.Any(n => AreSame(n, msg.First)))
localFrontend.SendMultipartMessage(msg);
else
cloudFrontend.SendMultipartMessage(msg);
}
};
// this socket is connected to all peers
// we receive either a REQ or a REPLY form a peer
// REQ [peer adr][empty][peer client adr][empty][message id] -> send to peer for processing
// REP [peer adr][empty][client adr][empty][message id] -> send to local client
cloudBackend.ReceiveReady += (s, e) =>
{
var msg = e.Socket.ReceiveMultipartMessage();
// just to make sure we received a message
Debug.Assert(msg != null && msg.FrameCount > 0, "[CloudBackend] message was empty or frame count == 0!");
// we need the peers address for proper addressing
var peerAdr = Unwrap(msg);
// the remaining message must be at least 3 frames!
Debug.Assert(msg.FrameCount > 2, "[CloudBackend] message malformed");
// if the id is any of the local clients it is a REPLY
// and a REQ otherwise
if (clients.Any(n => AreSame(n, msg.First)))
{
// [client adr][empty][message id]
localFrontend.SendMultipartMessage(msg);
}
else
{
// add the peers address to the request
var request = Wrap(peerAdr, msg);
// [peer adr][empty][peer client adr][empty][message id]
cloudFrontend.SendMultipartMessage(request);
}
};
// all peers are binding to this socket
// we receive REPLY or REQ from peers
// REQ [peer adr][empty][peer client adr][empty][data] -> send to local worker for processing
// REP [peer adr][empty][client adr][empty][data] -> send to local client
cloudFrontend.ReceiveReady += (s, e) =>
{
var msg = e.Socket.ReceiveMultipartMessage();
// just to make sure we received a message
Debug.Assert(msg != null && msg.FrameCount > 0, "[CloudFrontend] message was empty or frame count == 0!");
// we may need the peers address for proper addressing
var peerAdr = Unwrap(msg);
// the remaining message must be at least 3 frames!
Debug.Assert(msg.FrameCount > 2, "[CloudFrontend] message malformed");
// if the address is any of the local clients it is a REPLY
// and a REQ otherwise
if (clients.Any(n => AreSame(n, msg.First)))
localFrontend.SendMultipartMessage(msg);
else
{
// in order to know which per to send back the peers adr must be added again
var original = Wrap(peerAdr, msg);
// reduce the capacity to reflect the use of a worker by a cloud request
previousLocalCapacity = workerQueue.Count;
// get the LRU worker
var workerAdr = workerQueue.Dequeue();
// wrap the message with the worker address and send
var request = Wrap(workerAdr, original);
localBackend.SendMultipartMessage(request);
}
};
// in order to reduce chatter we only check to see if we have local capacity to provide to cloud
// periodically every 2 seconds with a timer
var timer = new NetMQTimer((int)TimeSpan.FromSeconds(2).TotalMilliseconds);
timer.Elapsed += (t, e) =>
{
// send message only if the previous send information changed
if (previousLocalCapacity != workerQueue.Count)
{
// set the information
previousLocalCapacity = workerQueue.Count;
// generate the message
var msg = new NetMQMessage();
var data = new NetMQFrame(previousLocalCapacity.ToString());
msg.Append(data);
var stateMessage = Wrap(Encoding.UTF8.GetBytes(me), msg);
// publish info
stateBackend.SendMultipartMessage(stateMessage);
}
// restart the timer
e.Timer.Enable = true;
};
// start all clients and workers as threads
var clientTasks = new Thread[NbrClients];
var workerTasks = new Thread[NbrWorker];
for (var i = 0; i < NbrClients; i++)
{
var client = new Client(localFrontendAddress, monitorAddress, (byte)i);
clientTasks[i] = new Thread(client.Run) { Name = string.Format("Client_{0}", i) };
clientTasks[i].Start();
}
for (var i = 0; i < NbrWorker; i++)
{
var worker = new Worker(localBackendAddress, (byte)i);
workerTasks[i] = new Thread(worker.Run) { Name = string.Format("Worker_{0}", i) };
workerTasks[i].Start();
}
// create poller and add sockets & timer
var poller = new NetMQPoller
{
localFrontend,
localBackend,
cloudFrontend,
cloudBackend,
stateFrontend,
stateBackend,
monitor,
timer
};
// start monitoring the sockets
poller.RunAsync();
// we wait for a CTRL+C to exit
while (s_keepRunning)
Thread.Sleep(100);
Console.WriteLine("Ctrl-C encountered! Exiting the program!");
if (poller.IsRunning)
poller.Stop();
poller.Dispose();
}
}
