/// <summary>
/// Send a message to broker
/// if no message provided create a new empty one
/// prepend the message with the MDP prologue
/// </summary>
/// <param name="mdpCommand">MDP command</param>
/// <param name="data">data to be sent</param>
/// <param name="message">the message to send</param>
private void Send(MDPCommand mdpCommand, string data, NetMQMessage message)
{
// cmd, null, message -> [REPLY],<null>,[client adr][e][reply]
// cmd, string, null -> [READY],[service name]
// cmd, null, null -> [HEARTBEAT]
var msg = ReferenceEquals(message, null) ? new NetMQMessage() : message;
// protocol envelope according to MDP
// last frame is the data if available
if (!ReferenceEquals(data, null))
{
// data could be multiple whitespaces or even empty(!)
msg.Push(data);
}
// set MDP command ([client adr][e][reply] OR [service]) => [data]
msg.Push(new[] { (byte)mdpCommand }); // [command][header][data]
// set MDP Header
msg.Push(m_mdpWorker); // [header][data]
// set MDP empty frame as separator
msg.Push(NetMQFrame.Empty); // [e][command][header][data]
Log(string.Format("[WORKER] sending {0} to broker / Command {1}", msg, mdpCommand));
m_worker.SendMessage(msg);
}
public static void Main(string[] args)
{
NetMQContext context = NetMQContext.Create();
NetMQSocket server = context.CreateRequestSocket();
server.Bind("tcp://*:5555");
NetMQMessage message = new NetMQMessage();
NetMQMessage getmass = new NetMQMessage();
message.Append("Hallo ");
message.Append(40);
Client client = new Client();
Thread t = new Thread(new ThreadStart(client.runClient));
t.Start();
while (true)
{
server.SendMessage(message, false);
getmass = server.ReceiveMessage(false);
System.Console.WriteLine(getmass.Pop().ConvertToString());
System.Console.WriteLine(getmass.Pop().ConvertToInt32());
}
}
public void Send(string work)
{
var message = new NetMQMessage();
message.Append(Encoding.Unicode.GetBytes(work));
_socket.SendMessage(message);
}
private static void Main(string[] args)
{
using (var ctx = NetMQContext.Create())
{
using (NetMQSocket frontend = ctx.CreateRouterSocket(), backend = ctx.CreateDealerSocket())
{
frontend.Bind(FRONTEND_ENDPOINT);
backend.Bind(BACKEND_ENDPOINT);
//Handler for messages coming in to the frontend
frontend.ReceiveReady += (sender, e) =>
{
var msg = frontend.ReceiveMessage();
backend.SendMessage(msg); //Relay this message to the backend
};
//Handler for messages coming in to the backend
backend.ReceiveReady += (sender, e) =>
{
var msg = backend.ReceiveMessage();
frontend.SendMessage(msg); //Relay this message to the frontend
};
using (var poller = new Poller())
{
poller.AddSocket(backend);
poller.AddSocket(frontend);
//Listen out for events on both sockets and raise events when messages come in
poller.Start();
}
}
}
}
public void Send(NetMQSocket socket)
{
NetMQMessage message = new NetMQMessage();
message.Append(BitConverter.GetBytes(IndexStart));
message.Append(BitConverter.GetBytes(IndexCount));
message.Append(BitConverter.GetBytes(ByteStart));
message.Append(BitConverter.GetBytes(ByteCount));
socket.SendMessage(message);
}
private void SendMessage(NetMQSocket socket, string socketKind, Message message)
{
// Add metadata for the current session if needed.
if (message.Header.Session == null)
{
message.Header.Session = session;
}
logger.LogDebug($"Sending {socketKind} message:\n\t{JsonConvert.SerializeObject(message)}");
socket.SendMessage(context, message);
}
public async Task SendMessage(NetMQMessage message)
{
// instead of creating inproc socket which listen to messages and then send
//to the server we just creating task and run a code on
// the poller thread which the the thread of the clientSocket
Task task = new Task(() => clientSocket.SendMessage(message));
task.Start(scheduler);
await task;
await ReceiveMessage();
}
private void heartbeatTimer_Elapsed(object sender, NetMQTimerEventArgs e)
{
// If liveness hits zero, queue is considered disconnected
if (--_liveness <= 0)
{
Console.WriteLine("{0} - W: heartbeat failure, can't reach queue.", DateTime.Now.ToLongTimeString());
Console.WriteLine("{0} - W: reconnecting in {1} msecs...", DateTime.Now.ToLongTimeString(), _interval);
Thread.Sleep(_interval);
// Exponential back off
if (_interval < INTERVAL_MAX)
{
_interval *= 2;
}
_liveness = Paranoid.HEARTBEAT_LIVENESS;
// Break the while loop and start the connection over
Task.Factory.StartNew(_ =>
{
Console.WriteLine("{0} - I: restart", DateTime.Now.ToLongTimeString());
Stop();
Dispose();
Start();
}, _scheduler);
}
// Send heartbeat to queue if it's time
if (DateTime.Now > _nextHeartbeatAt)
{
_nextHeartbeatAt = DateTime.Now.AddMilliseconds(Paranoid.HEARTBEAT_INTERVAL_MS);
var heartbeatMessage = new NetMQMessage();
heartbeatMessage.Append(new NetMQFrame(Encoding.Unicode.GetBytes(Paranoid.PPP_HEARTBEAT)));
_worker.SendMessage(heartbeatMessage);
}
}
public void runClient()
{
NetMQContext context = NetMQContext.Create();
NetMQSocket client = context.CreateResponseSocket();
client.Connect("tcp://localhost:5555");
NetMQMessage message = new NetMQMessage();
NetMQMessage message2 = new NetMQMessage();
while (true)
{
message = client.ReceiveMessage(false);
message2.Append(message.Pop().ConvertToString() + "Tobi");
message2.Append(message.Pop().ConvertToInt32() + 12);
client.SendMessage(message2, false);
System.Threading.Thread.Sleep(100);
}
}
protected override void ExecutionMethod()
{
try
{
TRequest request = _requests.Take(Token);
var envelope = new NetMQFrame(Encoding.UTF8.GetBytes(request.Topic));
var body = new NetMQFrame(request.ToByteArray());
var msq = new NetMQMessage();
msq.Append(envelope);
msq.Append(body);
_zmqSocket.SendMessage(msq);
}
catch (Exception)
{
throw;
}
}
public void Send(NetMQMessage msg)
{
_serverSocket.SendMessage(msg);
}
/// <summary>
/// send a request to a broker for a specific service and receive the reply
///
/// if the reply is not available within a specified time
/// the client deems the connection as lost and reconnects
/// for a specified number of times. if no reply is available
/// throughout this procedure the client abandons
/// the reply is checked for validity and returns the reply
/// according to the verbose flag it reports about its activities
/// </summary>
/// <param name="serviceName">the name of the service requested</param>
/// <param name="request">the request message to process by service</param>
/// <returns>the reply from service</returns>
/// <exception cref="ApplicationException">malformed message received</exception>
/// <exception cref="ApplicationException">malformed header received</exception>
/// <exception cref="ApplicationException">reply received from wrong service</exception>
public NetMQMessage Send(string serviceName, NetMQMessage request)
{
if (string.IsNullOrWhiteSpace(serviceName))
{
throw new ApplicationException("serviceName must not be empty or null.");
}
if (ReferenceEquals(request, null))
{
throw new ApplicationException("the request must not be null");
}
// memorize it for the event handler
m_serviceName = serviceName;
// if for any reason the socket is NOT connected -> connect it!
if (!m_connected)
{
Connect();
}
var message = new NetMQMessage(request);
// prefix the request according to MDP specs
// Frame 1: "MDPCxy" (six bytes MDP/Client x.y)
// Frame 2: service name as printable string
// Frame 3: request
message.Push(serviceName);
message.Push(m_mdpClient);
Log(string.Format("[CLIENT INFO] sending {0} to service {1}", message, serviceName));
var retiesLeft = Retries;
while (retiesLeft > 0)
{
// beware of an exception if broker has not picked up the message at all
// because one can not send multiple times! it is strict REQ -> REP -> REQ ...
m_client.SendMessage(message);
// Poll -> see ReceiveReady for event handling
if (m_client.Poll(Timeout))
{
// set by event handler
return(m_reply);
}
// if it failed assume communication dead and re-connect
if (--retiesLeft > 0)
{
Log("[CLIENT WARNING] no reply, reconnecting ...");
Connect();
}
}
Log("[CLIENT ERROR] permanent error, abandoning!");
m_client.Dispose();
m_ctx.Dispose();
return(null);
}
public void SendProcessRequest(NetMQSocket socket)
{
NetMQMessage msg = new NetMQMessage();
//set file info
msg.Append(BitConverter.GetBytes((int)ServerCodes.File));
msg.Append(BitConverter.GetBytes(FileNames.Length));
for (int k = 0; k < FileNames.Length; k++)
{
msg.Append(FileNames[k] + '\0');
}
if (Indexing)
{
msg.Append(BitConverter.GetBytes((int)ServerCodes.Index));
msg.Append(PacketIndexFile);
msg.Append(TimeIndexFile);
}
if (Filtering)
{
msg.Append(BitConverter.GetBytes((int)ServerCodes.Filter));
//step 0 - gpu index
msg.Append(BitConverter.GetBytes(GpuIndex));
//step 1 - target memsize
msg.Append(BitConverter.GetBytes(GpuBufferSize));
//step 2 - streams
msg.Append(BitConverter.GetBytes(GpuStreams));
string filename = FileNames[0].Substring(FileNames[0].LastIndexOf('\\') + 1);
//step 3 - capture name
msg.Append(filename);
//step 4 - destination folder
msg.Append(GpfOutputFolder + '\0');
//step 5 - constant values
msg.Append(FilterProgram.StaticMemory.ToArray());
//step 6 - rule program
msg.Append(FilterProgram.RuleProgram.ToArray());
//step 7 - filter_program
msg.Append(FilterProgram.FilterProgram.ToArray());
//step 8 - lookup program
msg.Append(FilterProgram.LookupMemory.ToArray());
//step 9 - filter names
foreach (var filter in FilterProgram.FilterNames)
{
msg.Append(filter + '\0');
}
//step 10 - integer names
foreach (var integer in FilterProgram.IntegerNames)
{
msg.Append(integer + '\0');
}
}
msg.Append(BitConverter.GetBytes((int)ServerCodes.EndRequest));
socket.SendMessage(msg);
}
public void Send(NetMQMessage msg)
{
_clientSocket.SendMessage(msg);
}
