private static void Queue_ReceiveReady(object sender, NetMQQueueEventArgs <byte[]> e)
{
if (e.Queue.TryDequeue(out byte[] result, TimeSpan.FromSeconds(1.0)))
{
push.SendFrame(result);
}
}
static void Main(string[] args)
{
/// Task Ventilator
// Binds PUSH socket to tcp://localhost:5557
// Sends batch of tasks to workers via that socket
Console.WriteLine("====== VENTILATOR ======");
using (var sender = new PushSocket("@tcp://*:5557"))
using (var sink = new PushSocket(">tcp://localhost:5558"))
{
Console.WriteLine("Press enter when worker are ready");
Console.ReadLine();
//the first message it "0" and signals start of batch
//see the Sink.csproj Program.cs file for where this is used
Console.WriteLine("Sending start of batch to Sink");
sink.SendFrame("0");
Console.WriteLine("Sending tasks to workers");
//initialise random number generator
Random rand = new Random(0);
//expected costs in Ms
int totalMs = 0;
//send 100 tasks (workload for tasks, is just some random sleep time that
//the workers can perform, in real life each work would do more than sleep
for (int taskNumber = 0; taskNumber < 100; taskNumber++)
{
//Random workload from 1 to 100 msec
int workload = rand.Next(0, 100);
totalMs += workload;
Console.WriteLine("Workload : {0}", workload);
sender.SendFrame(workload.ToString());
}
Console.WriteLine("Total expected cost : {0} msec", totalMs);
Console.WriteLine("Press Enter to quit");
Console.ReadLine();
}
}
static void Main(string[] args)
{
// Task Ventilator
// Binds PUSH socket to tcp://localhost:5557
// Sends batch of tasks to workers via that socket
Console.WriteLine("====== VENTILATOR ======");
using (var sender = new PushSocket("@tcp://*:80"))
using (var sink = new PullSocket(">tcp://localhost:8080"))
{
Thread.Sleep(1000);
//the first message it "0" and signals start of batch
//see the Sink.csproj Program.cs file for where this is used
Console.WriteLine("Sending start of batch to Sink");
//sink.SendFrame("0");
Console.WriteLine("Sending tasks to workers");
//initialise random number generator
Random rand = new Random(0);
//expected costs in Ms
int totalMs = 0;
//send 100 tasks (workload for tasks, is just some random sleep time that
//the workers can perform, in real life each work would do more than sleep
int upper = 10;
int height = 400;
for (int lower = 0; lower < height; lower += 10)
{
sender.SendFrame(lower + "," + upper + "," + height);
upper += 10;
}
Console.WriteLine("Total expected cost : {0} msec", totalMs);
Console.WriteLine("Press Enter to quit");
Console.ReadLine();
}
}
static void Main(string[] args)
{
Console.WriteLine("====== VENTILATOR ======");
using (var push = new PushSocket())
using (var sink = new DealerSocket())
{
push.Bind("tcp://127.0.0.1:8888");
sink.Connect("tcp://127.0.0.1:7777");
Console.WriteLine("Press enter when worker are ready");
Console.ReadLine();
Console.WriteLine("Sending start of batch to Sink");
sink.SendFrame("0");
Console.WriteLine("Sending tasks to workers");
var rnd = new Random();
var totalMs = 0;
for (int taskNumber = 0; taskNumber < 100; taskNumber++)
{
int workload = rnd.Next(0, 100);
totalMs += workload;
Console.WriteLine("Workload : {0}", workload);
push.SendFrame(workload.ToString());
}
Console.WriteLine($"Total expected cost : {totalMs} msec");
Console.WriteLine("Press Enter to quit");
Console.ReadLine();
}
}
static void Main(string[] args)
{
string connectionString = args[0];
using (var send = new PushSocket(">tcp://127.0.0.1:9999"))
using (var receive = new ResponseSocket(connectionString))
{
while (true)
{
// Block for request
var message = receive.ReceiveFrameString();
var msgId = Guid.NewGuid().ToString();
// Acknowledge
receive.SendFrame("200, ACK");
// Do Work ...
Thread.Sleep(2000);
// Send response
send.SendFrame(string.Format("Handler {0} completed task {1}",
connectionString, msgId));
// Exit handler
break;
}
}
}
static void Main(string[] args)
{
Console.WriteLine("====== WORKER ======");
var sinkPort = ConfigurationManager.AppSettings.Get("sinkPort") ?? "8088";
var ventilatorPort = ConfigurationManager.AppSettings.Get("ventilatorPort") ?? "400";
using (var receiver = new PullSocket($">tcp://localhost:{sinkPort}"))
using (var sender = new PushSocket($">tcp://localhost:{ventilatorPort}"))
{
while (true)
{
string workload = receiver.ReceiveFrameString();
// the protocoll is as follows: [0] -> lower, [1] -> upper, [2] -> height
string[] workLoadArray = workload.Split(',');
var calculator = new MandelbrotCalculator();
var result = calculator.Calculate(Convert.ToInt32(workLoadArray[2]), 400, Convert.ToInt32(workLoadArray[0]), Convert.ToInt32(workLoadArray[1]));
byte[] data;
BinaryFormatter binaryFormatter = new BinaryFormatter();
using (var memoryStream = new MemoryStream())
{
binaryFormatter.Serialize(memoryStream, result);
data = memoryStream.ToArray();
}
Console.WriteLine("Sending");
sender.SendFrame(data);
}
}
}
private static void Main()
{
Console.WriteLine("Creating socket..");
using (var pushSocket = new PushSocket(">tcp://localhost:5556")
{
/* So apparently this is needed to prevent the socket from being immediately disposed
* after the last instruction of the using block.
* With this setting, the socket shall be disposed only after the message has been sent.
* This is equivalent to say "wait forever", but someone may arguably want to set a finite
* amount of time when in production.
*/
Options = { Linger = TimeSpan.FromSeconds(-1) }
})
{
Console.WriteLine("Creating message..");
var message = new Message
{
Text = "test message",
TimeStamp = DateTime.Now,
Type = "test",
ValueCode = 0
};
Console.WriteLine("Serializing message..");
using (var memoryStream = new MemoryStream())
{
var binaryFormatter = new BinaryFormatter();
binaryFormatter.Serialize(memoryStream, message);
var serializedMessage = memoryStream.ToArray();
Console.WriteLine("Sending message..");
pushSocket.SendFrame(serializedMessage);
}
}
Console.WriteLine("Performing cleanup..");
NetMQConfig.Cleanup();
}
public override void Publisher()
{
AsyncIO.ForceDotNet.Force();
sender = new PushSocket();
sender.Connect("tcp://" + IP + ":" + Port);
Debug.Log("Connect ObjectSender to: " + "tcp://" + IP + ":" + Port);
while (IsRunning)
{
Thread.Sleep(50);
if (sendMessageQueue.Count > 3)
{
sendMessageQueue.RemoveRange(0, sendMessageQueue.Count - 3);
}
if (sendMessageQueue.Count > 0)
{
// Debug.Log("Send: " + sendMessageQueue[0]);
try
{
sender.SendFrame(sendMessageQueue[0], false); // true not wait
sendMessageQueue.RemoveAt(0);
}
catch { }
}
}
// disconnectClose();
}
static void Main(string[] args)
{
bool started = false;
while (true)
{
if (started)
{
Console.WriteLine("Please Press Enter to Stop...");
Console.ReadLine();
using (var server = new PushSocket())
{
server.Connect("tcp://127.0.0.1:5489");
server.SendFrame("false");
started = false;
}
}
else
{
Console.WriteLine("Please Press Enter to Start...");
Console.ReadLine();
using (var send = new PushSocket())
{
send.Connect("tcp://127.0.0.1:5488");
send.SendFrame("true");
started = true;
}
}
}
}
static void Main(string[] args)
{
// Console.WriteLine("Connecting to hello world server…");
// using (var requester = new RequestSocket())
// {
// requester.Connect("tcp://localhost:5555");
// int requestNumber;
// for (requestNumber = 0; requestNumber != 100; requestNumber++)
// {
// Console.WriteLine("Sending Hello {0}...", requestNumber);
// requester.SendFrame("Hello");
// string str = requester.ReceiveFrameString();
// Console.WriteLine("Received World {0}", requestNumber);
// }
// }
using (var responder = new PushSocket())
{
responder.Bind("tcp://*:5555");
while (true)
{
//string str = responder.ReceiveFrameString();
string str = "hellllllo";
Console.WriteLine(str);
Thread.Sleep(50); // Do some 'work'
responder.SendFrame(str);
}
}
}
public static void Main(string[] args)
{
Console.WriteLine("====== VENTILATOR ======");
Console.WriteLine("Press enter when all is set up");
Console.ReadLine();
using (var sender = new PushSocket("@tcp://*:80"))
{
Console.WriteLine("Sending tasks to workers");
int step = 10;
int height = 200; //400 hier kann height geändert werden
int width = 200; // hier kann width geändert werden
for (int start = 0; start < height; start += 10)
{
Thread.Sleep(100);
sender.SendFrame(start + "," + step + "," + width);
Console.WriteLine("asked for " + start + " to " + step);
step = step + 10;
}
Console.WriteLine("Press any key to quit");
Console.ReadLine();
}
}
public static void Main(string[] args)
{
// Task Worker
// Connects PULL socket to tcp://localhost:5557
// collects workload for socket from Ventilator via that socket
// Connects PUSH socket to tcp://localhost:5558
// Sends results to Sink via that socket
Console.WriteLine("====== WORKER ======");
using (var receiver = new PullSocket(">tcp://127.0.0.1:5557"))
using (var sender = new PushSocket(">tcp://127.0.0.1:5558"))
{
//process tasks forever
while (true)
{
//workload from the vetilator is a simple delay
//to simulate some work being done, see
//Ventilator.csproj Proram.cs for the workload sent
//In real life some more meaningful work would be done
string workload = receiver.ReceiveFrameString();
//simulate some work being done
Thread.Sleep(int.Parse(workload));
//send results to sink, sink just needs to know worker
//is done, message content is not important, just the presence of
//a message means worker is done.
//See Sink.csproj Proram.cs
Console.WriteLine("Sending to Sink");
sender.SendFrame(string.Empty);
}
}
}
static void Main(string[] args)
{
Console.WriteLine("====== Back Queue STARTED ======");
using var fromWorkerForPosion = new PullSocket($"@{ThreadSafeFactory.BackPosionQueue}");
using var fromWorkerForUrl = new PullSocket($"@{ThreadSafeFactory.BackUrlQueue}");
using var forFrontForUrl = new PushSocket($"@{ThreadSafeFactory.BackQueue}");
Console.WriteLine("Socket initialized");
var fromWorkerProcessorForFrontQueue = Task.Run(() =>
{
do
{
try
{
Console.WriteLine($"Waiting for worker link");
var queueItem = fromWorkerForUrl.ReceiveFrameString();
Console.WriteLine($"Received [{queueItem}] from worker");
Console.WriteLine($"Sending to front queue");
forFrontForUrl.SendFrame(queueItem);
Console.WriteLine($"Sent to front queue");
}
catch (Exception ex)
{
Console.WriteLine($"Error in Front Queue Processor {ex.Message}");
}
} while (true);
});
var fromWorkerProcessorForPoison = Task.Run(() =>
{
do
{
Console.WriteLine($"Waiting for poison items");
var workload = fromWorkerForPosion.ReceiveFrameString();
UrlPosionQueueItem queueItem = workload.FromJson <UrlPosionQueueItem>();
_posionQueue.Enqueue(queueItem);
Console.WriteLine($"Received poison [{queueItem.ToJson()}] from worker");
} while (true);
});
var poisonQueueProcessor = Task.Run(() =>
{
do
{
//while (_posionQueue.IsEmpty)
//{
// Task.Delay(5000).Wait();
//}
if (_posionQueue.TryDequeue(out UrlPosionQueueItem queueItem))
{
Console.WriteLine($"Processing poison {queueItem.ToJson()}");
}
// TODO: Persist all posion queue items with failure reasons in db
} while (true);
});
Task.WaitAll(fromWorkerProcessorForFrontQueue, /* fromWorkerProcessorForPoison,*/ poisonQueueProcessor);
Console.WriteLine("====== FRONT QUEUE ======");
}
public void Test_Start_Should_Not_Fail_In_Case_Of_Processing_Exception()
{
using (AutoMock mock = AutoMock.GetLoose(this.output.Capture()))
{
IOptions <MessageHandlerOptions> options = Options.Create(new MessageHandlerOptions {
Address = "tcp://127.0.0.1:51861"
});
mock.Provide(options);
mock.Mock <ITelegramService>()
.SetupSequence(service => service.SendMessageAsync(It.IsAny <string>(), It.IsAny <CancellationToken>()))
.Throws(new Exception("Something threw an exception"))
.Returns(Task.CompletedTask);
using (var pushSocket = new PushSocket($"@{options.Value.Address}"))
using (var handler = mock.Create <MessageHandlerImpl>())
{
handler.Start();
pushSocket.SendFrame("some-message1");
pushSocket.SendFrame("some-message2");
Mock <ITelegramService> telegramService = mock.Mock <ITelegramService>();
var cts = new CancellationTokenSource(TimeSpan.FromSeconds(10));
Predicate <CancellationToken> isNotCancelled = token => !token.IsCancellationRequested;
while (!cts.Token.IsCancellationRequested)
{
try
{
telegramService.Verify(p => p.SendMessageAsync("some-message1", Match.Create(isNotCancelled)), Times.Once);
telegramService.Verify(p => p.SendMessageAsync("some-message2", Match.Create(isNotCancelled)), Times.Once);
break;
}
catch (MockException)
{
if (cts.Token.IsCancellationRequested)
{
throw;
}
}
}
}
}
}
protected override void Produce(PushSocket socket, int messageSize)
{
var msg = new byte[messageSize];
msg[messageSize / 2] = 0x42;
for (int i = 0; i < MsgCount; i++)
{
socket.SendFrame(msg);
}
}
public void SimplePushPull()
{
using (var pullSocket = new PullSocket())
using (var pushSocket = new PushSocket())
{
var port = pullSocket.BindRandomPort("tcp://127.0.0.1");
pushSocket.Connect("tcp://127.0.0.1:" + port);
pushSocket.SendFrame("hello");
Assert.AreEqual("hello", pullSocket.ReceiveFrameString());
}
}
public void EmptyMessage()
{
using (var pullSocket = new PullSocket())
using (var pushSocket = new PushSocket())
{
var port = pullSocket.BindRandomPort("tcp://127.0.0.1");
pushSocket.Connect("tcp://127.0.0.1:" + port);
pushSocket.SendFrame(new byte[300]);
Assert.AreEqual(300, pullSocket.ReceiveFrameString().Length);
}
}
void StartClient()
{
Debug.Log("Client is On!!");
using (var pushSocket = new PushSocket())
using (var subscriberSocket = new SubscriberSocket())
{
pushSocket.Connect("tcp://localhost:20002");
subscriberSocket.Connect("tcp://localhost:20001");
subscriberSocket.Subscribe("topicA");
Thread.Sleep(TimeSpan.FromSeconds(2));
Debug.Log("Send !!");
pushSocket.SendFrame("Hello Server First!");
while (true)
{
string str = subscriberSocket.ReceiveFrameString();
Debug.Log("[Client] Get! :: " + str);
pushSocket.SendFrame("Hello Server!");
Debug.Log("[Client] Send Hello Server!");
}
}
}
public void Notify(ExposedService exposedService)
{
Log.Logger.ForContext <MessageQueueNotificationService>().Information("New container event: {@ExposedService}", exposedService);
var frame = GetSerializedMessageFrame(exposedService);
try
{
_pushSocket.SendFrame(frame);
}
catch (Exception exception)
{
Log.Logger.ForContext <MessageQueueNotificationService>().Error(exception, "Error while sending exposed service change to the message queue.");
}
}
public void Start()
{
Task.Run(() =>
{
using (var receiver = new PullSocket(Endpoint))
{
while (true)
{
var command = receiver.ReceiveFrameBytes();
var msg = JsonConvert.DeserializeObject <Message>(Encoding.UTF32.GetString(command));
switch (msg.Subject)
{
case NetMQPeerDirectory.Ack:
TestsNetMQContext.Increment();
break;
case NetMQPeerDirectory.Command:
TestsNetMQContext.Increment();
break;
case NetMQPeerDirectory.Event:
TestsNetMQContext.Increment();
break;
}
}
}
}, _token);
Task.Run(async() =>
{
using (var sender = new PushSocket($"{DirectoryEndpoint}"))
{
var message = new Message()
{
Endpoint = Endpoint,
Subject = NetMQPeerDirectory.RegisterCommand
};
var msg = Encoding.UTF32.GetBytes(JsonConvert.SerializeObject(message));
sender.SendFrame(msg);
await Task.Delay(100);
}
});
}
public static void Main(string[] args)
{
Console.WriteLine("====== WORKER ======");
using (var receiver = new PullSocket(">tcp://localhost:80"))
using (var sender = new PushSocket(">tcp://localhost:400"))
{
//process tasks forever
while (true)
{
string workload = receiver.ReceiveFrameString();
Console.WriteLine("got");
string[] values = workload.Split(',');
double xReminder = -2 + ((double)Int32.Parse(values[0]) * 0.013);
MandlBrotCalcer calcer = new MandlBrotCalcer();
List <(int, int, int)> list = calcer.CalcPart(Int32.Parse(values[0]), Int32.Parse(values[1]), 0, Int32.Parse(values[2]), 18, 4, xReminder, 1.2, 0.013);
BinaryFormatter binaryFormatter = new BinaryFormatter();
byte[] listBytes;
using (var memoryStream = new MemoryStream())
{
binaryFormatter.Serialize(memoryStream, list);
listBytes = memoryStream.ToArray();
}
sender.SendFrame(listBytes);
Console.WriteLine("Sending to Sink");
sender.SendFrame(string.Empty);
}
}
}
//helper functions
#region helper functions
static public byte[] Communicate(string request)
{
lock (commsLock) {
Console.WriteLine($"Sending {request}");
sender.SendFrame(request);
//server.ReceiveFrameString();
var message = responseReceiver.ReceiveFrameBytes();
if (message.Length == 0)
{
throw new Exception("empty response");
}
return(message);
}
}
static void Main(string[] args)
{
var database = new Database();
using (var priceValidator = new SubscriberSocket(">tcp://localhost:10000"))
using (var productPush = new PushSocket("@tcp://*:12000"))
{
priceValidator.Subscribe("product");
while (true)
{
var topic = priceValidator.ReceiveFrameString();
var productTohavePriceValidated = priceValidator.ReceiveFrameString();
var product = Newtonsoft.Json.JsonConvert.DeserializeObject <Product>(productTohavePriceValidated);
Console.WriteLine(productTohavePriceValidated);
var databaseProduct = database.Products.SingleOrDefault(x => x.Id == product.Id);
ValidatedProductMessage message = null;
if (databaseProduct != null)
{
if (string.IsNullOrEmpty(product.Name))
{
message = new ValidatedProductMessage(product, "Product name is required, can not be displayed on the site.");
}
else if (string.IsNullOrEmpty(product.Description))
{
message = new ValidatedProductMessage(product, "Product description is required, can not be displayed on the site.");
}
else if (product.Price > 1000 && product.RelatedProducts.Count == 0)
{
message = new ValidatedProductMessage(product, "Expensive products must to have at least 1 related product, can not be displayed on the site.");
}
else
{
message = new ValidatedProductMessage(product);
}
}
else
{
message = new ValidatedProductMessage(null, "Product not found, need to be created by the Product Team before be published on site");
}
productPush.SendFrame(Newtonsoft.Json.JsonConvert.SerializeObject(message));
}
}
}
static void Main(string[] args)
{
// Task Worker
// Connects PULL socket to tcp://localhost:5557
// collects workload for socket from Ventilator via that socket
// Connects PUSH socket to tcp://localhost:5558
// Sends results to Sink via that socket
Console.WriteLine("====== WORKER ======");
var mainServer = ConfigurationManager.AppSettings.Get("mainServer");
using (var receiver = new PullSocket(">tcp://localhost:80"))
using (var sender = new PushSocket(">tcp://localhost:400"))
{
//process tasks forever
while (true)
{
//workload from the vetilator is a simple delay
//to simulate some work being done, see
//Ventilator.csproj Proram.cs for the workload sent
//In real life some more meaningful work would be done
string workload = receiver.ReceiveFrameString();
//0 ... lower, 1... upper... 2..height
string[] workLoadArray = workload.Split(',');
var calculator = new Calculator();
var result = calculator.Calculate(Convert.ToInt32(workLoadArray[0]), Convert.ToInt32(workLoadArray[1]), Convert.ToInt32(workLoadArray[2]), 400);
byte[] dataGame;
BinaryFormatter binaryFormatter = new BinaryFormatter();
using (var memoryStream = new MemoryStream())
{
binaryFormatter.Serialize(memoryStream, result);
dataGame = memoryStream.ToArray();
}
Console.WriteLine("Sending to Sink");
sender.SendFrame(dataGame);
}
}
}
private void FanOutEntry(object n)
{
FanoutRun f;
string name = (string)n;
if (FanoutRM.ContainsKey(name))
{
f = FanoutRM[name];
}
else
{
Logging.logger.Error("FanOutEntry get name failed " + name);
return;
}
PushSocket p = new PushSocket();
string e = "tcp://" + f.point.ip + ":" + f.point.port;
try
{
p.Bind(e);
f.pushsock = p;
}
catch (Exception err)
{
Logging.logger.Error(ModName + " bind funin socket failed " + e + " " + err.Message);
throw (err);
}
string str;
f.Working = true;
while (f.Running)
{
str = Entry4GetFanoutData(f.name);
if (str != null)
{
p.SendFrame(str);
}
DelayTime();
}
f.Working = false;
p.Close();
return;
}
public bool Send(string message, string serverPushAddress, int serverPushPort)
{
try
{
using (var producer = new PushSocket())
{
producer.Connect(serverPushAddress + ":" + serverPushPort);
producer.SendFrame(message);
System.Threading.Thread.Sleep(2000);
producer.Disconnect(serverPushAddress + ":" + serverPushPort);
}
return(true);
}
catch
{
return(false);
}
}
public async Task StartPushing()
{
var message = string.Format("Id = {0}", _id);
var bytes = Encoding.ASCII.GetBytes(message);
while (true)
{
socket.SendFrame(message);
Console.WriteLine(" {0} Sent message", _id);
//await Task.Delay(_id * 10);
string fromServerMessage = socket.ReceiveFrameString();
Console.WriteLine("Client {0} From Server: {1}", _id, fromServerMessage);
if (!fromServerMessage.Contains(_id.ToString()))
{
throw new InvalidOperationException(string.Format("{0} Received {1}", _id, fromServerMessage));
}
}
}
public void create(int antal)
{
Message m = new Message();
//var pubSocket = new PublisherSocket();
using (var sender = new PushSocket("@tcp://*:5556"))
{
Console.WriteLine("Publisher started");
//pubSocket.Options.SendHighWatermark = 10000;
//pubSocket.Bind("tcp://*:5556");
//Thread.Sleep(100);
for (var i = 0; i < antal; i++)
{
//Console.WriteLine("Sending message : {0}", msg);
sender.SendFrame(m.Navn);
//Thread.Sleep(100);
}
}
Console.WriteLine(antal + " Beskeder sendt");
}
// Overide the run thread
protected override void Run()
{
ForceDotNet.Force(); // this line is needed to prevent unity freeze after one use, not sure why yet
using (PushSocket client = new PushSocket())
{
string addr = "tcp://localhost:" + port;
client.Connect(addr);
while (Running)
{
if (newDataFlag)
{
//Debug.Log("ZMQPusher-> Data Sent through ZMQ.");
client.SendFrame(sendData);
newDataFlag = false;
}
}
}
NetMQConfig.Cleanup(); // this line is needed to prevent unity freeze after one use, not sure why yet
}
public void CloseSendingSockets()
{
Console.WriteLine("FINISHED SENDING DATA");
var selfSocket = new PushSocket();
selfSocket.Connect("tcp://" + RemoteServGr.NodeAddress);
var msg = new Message
{
MsgType = MessageType.EndingProgram,
SendingServer = RemoteServGr.NodeAddress
};
var msgJson = JsonConvert.SerializeObject(msg);
selfSocket.SendFrame(msgJson);
foreach (var socket in RemoteServGr.RemoteServerSockets)
{
socket.Value.Close();
}
selfSocket.Close();
}
public void Run()
{
Console.WriteLine("[CLIENT {0}] Starting", m_id);
var rnd = new Random(m_id);
// each request shall have an unique id in order to recognize an reply for a request
var messageId = new byte[5];
// create clientId for messages
var clientId = new[] { m_id };
// a flag to signal that an answer has arrived
bool messageAnswered = false;
// we use a poller because we have a socket and a timer to monitor
using (var clientPoller = new NetMQPoller())
using (var client = new RequestSocket())
using (var monitor = new PushSocket())
{
client.Connect(m_localFrontendAddress);
monitor.Connect(m_monitorAddress);
client.Options.Identity = new[] { m_id };
var timer = new NetMQTimer((int)TimeSpan.FromSeconds(10).TotalMilliseconds);
// use as flag to indicate exit
var exit = false;
// every 10 s check if message has been received, if not then send error message and ext
// and restart timer otherwise
timer.Elapsed += (s, e) =>
{
if (messageAnswered)
{
e.Timer.Enable = true;
}
else
{
var msg = string.Format("[CLIENT {0}] ERR - EXIT - lost message {1}", m_id, messageId);
// send an error message
monitor.SendFrame(msg);
// if poller is started than stop it
if (clientPoller.IsRunning)
clientPoller.Stop();
// mark the required exit
exit = true;
}
};
// process arriving answers
client.ReceiveReady += (s, e) =>
{
// mark the arrival of an answer
messageAnswered = true;
// worker is supposed to answer with our request id
var reply = e.Socket.ReceiveMultipartMessage();
if (reply.FrameCount == 0)
{
// something went wrong
monitor.SendFrame(string.Format("[CLIENT {0}] Received an empty message!", m_id));
// mark the exit flag to ensure the exit
exit = true;
}
else
{
var sb = new StringBuilder();
// create success message
foreach (var frame in reply)
sb.Append("[" + frame.ConvertToString() + "]");
// send the success message
monitor.SendFrame(string.Format("[CLIENT {0}] Received answer {1}",
m_id,
sb.ToString()));
}
};
// add socket & timer to poller
clientPoller.Add(client);
clientPoller.Add(timer);
// start poller in another thread to allow the continued processing
clientPoller.RunAsync();
// if true the message has been answered
// the 0th message is always answered
messageAnswered = true;
while (!exit)
{
// simulate sporadic activity by randomly delaying
Thread.Sleep((int)TimeSpan.FromSeconds(rnd.Next(5)).TotalMilliseconds);
// only send next message if the previous one has been replied to
if (messageAnswered)
{
// generate random 5 byte as identity for for the message
rnd.NextBytes(messageId);
messageAnswered = false;
// create message [client adr][empty][message id] and send it
var msg = new NetMQMessage();
msg.Push(messageId);
msg.Push(NetMQFrame.Empty);
msg.Push(clientId);
client.SendMultipartMessage(msg);
}
}
// stop poller if needed
if (clientPoller.IsRunning)
clientPoller.Stop();
}
}
