static int FLClient1_MAX_RETRIES = 3; // Before we abandon
public static void FLClient1(IDictionary <string, string> dict, string[] args)
{
//
// Freelance client - Model 1
// Uses REQ socket to query one or more services
//
// Authors: Pieter Hintjens, Uli Riehm
//
if (args == null || args.Length < 1)
{
Console.WriteLine("I: syntax: {0} FLClient1 [endpoint]", AppDomain.CurrentDomain.FriendlyName);
return;
}
// The client uses a Lazy Pirate strategy if it only has one server to talk
// to. If it has two or more servers to talk to, it will try each server just
// once:
using (var context = ZContext.Create())
using (var request = new ZFrame("Hello World"))
{
ZFrame reply = null;
if (args.Length == 1)
{
// For one endpoint, we retry N times
string endpoint = args[0];
for (int retries = 0; retries < FLClient1_MAX_RETRIES; ++retries)
{
if (null != (reply = FLClient1_TryRequest(context, endpoint, request)))
{
break; // Successful
}
Console.WriteLine("W: no response from {0}, retrying...", endpoint);
}
}
else
{
// For multiple endpoints, try each at most once
for (int endpoint_nbr = 0; endpoint_nbr < args.Length; ++endpoint_nbr)
{
string endpoint = args[endpoint_nbr];
if (null != (reply = FLClient1_TryRequest(context, endpoint, request)))
{
break; // Successful
}
Console.WriteLine("W: no response from {0}, retrying...", endpoint);
}
}
if (reply != null)
{
Console.WriteLine("Service is running OK");
}
}
}
public static void Console_WriteZFrame(string format, ZFrame frame, params object[] data)
{
var renderer = new StringBuilder();
var list = new List <object>(data);
// here the renderer
renderer.Append(format);
renderer.Append(": ");
renderer.Append("{");
renderer.Append(0 + data.Length);
renderer.Append("}");
// now the message
frame.Position = 0;
if (frame.Length == 0)
{
list.Add("0");
}
else
{
list.Add(frame.ReadString());
}
frame.Position = 0;
Console.WriteLine(renderer.ToString(), list.ToArray());
}
public void Execute(ProcessNode currentNode, ProcessNode previousNode)
{
string endpoint = "tcp://127.0.0.1:5556";
// Create
using (var context = new ZContext())
using (var requester = new ZSocket(context, ZSocketType.REQ))
{
// Connect
requester.Connect(endpoint);
string requestText = "Do some work";
Console.WriteLine("Request {0}", requestText);
// Send
requester.Send(new ZFrame(requestText));
// Receive
using (ZFrame reply = requester.ReceiveFrame())
{
Console.WriteLine("Received: {0} ", reply.ReadString());
}
currentNode.Done();
}
}
static void Main(string[] args)
{
Console.WriteLine("10 seconds worker server");
// Create
using (var context = new ZContext())
using (var responder = new ZSocket(context, ZSocketType.REP))
{
// Bind
responder.Bind("tcp://*:5556");
while (true)
{
// Receive
using (ZFrame request = responder.ReceiveFrame())
{
Console.WriteLine("Received {0}", request.ReadString());
// Do some work
Thread.Sleep(10000);
// Send
Console.WriteLine("Sending Work Done");
responder.Send(new ZFrame("Work Done"));
}
}
}
}
public VehicleRecogResult GetVehicleByPic(string imageFileName)
{
VehicleRecogResult vehicleResults = new VehicleRecogResult();
using (var requester = new ZSocket(context, ZSocketType.REQ))
{
requester.Connect("tcp://127.0.0.1:50559");
string imagepath = imageFileName;
if (File.Exists(imagepath))
{
Guid guid = Guid.NewGuid();
DataTypes.VehicleInfo info = new DataTypes.VehicleInfo();
info.Id = "11111";
info.Imagepath = (imagepath);
info.Uuid = guid.ToString().Replace("-", "");
ZMessage zMsg = new ZMessage();
zMsg.Add(new ZFrame(info.ToByteArray()));
requester.Send(zMsg);
using (ZFrame reply = requester.ReceiveFrame())
{
DataTypes.VehicleInfo msg2 = new DataTypes.VehicleInfo();
msg2.MergeFrom(reply.Read());
vehicleResults = JsonConvert.DeserializeObject <VehicleRecogResult>(msg2.Jsonresult);
//Console.WriteLine(" Received: {0}!", msg2.Jsonresult);
}
}
}
return(vehicleResults);
}
private void ReceiveDataHandler()
{
while (Enabled)
{
// Receive data from the socket
using (ZMessage message = m_zeroMQClient.Provider.ReceiveMessage())
{
// Dealer socket should have removed identity frame already, should be left
// with delimiter and data payload frames
if (message.Count == 2)
{
// Get the data payload frame
ZFrame frame = message[1];
m_zeroMQClient.BytesReceived = (int)frame.Length;
if (m_zeroMQClient.ReceiveBufferSize < m_zeroMQClient.BytesReceived)
{
m_zeroMQClient.SetReceiveBuffer(m_zeroMQClient.BytesReceived);
}
frame.Read(m_zeroMQClient.ReceiveBuffer, 0, m_zeroMQClient.BytesReceived);
m_zeroMQClient.Statistics.UpdateBytesReceived(m_zeroMQClient.BytesReceived);
// Notify consumer of received data
OnReceiveDataComplete(m_zeroMQClient.ReceiveBuffer, m_zeroMQClient.BytesReceived);
}
}
}
}
// Send message to the command server
public bool SendCommandMessage(ref Message msg, out string error)
{
error = "";
try
{
bool bOK = false;
// Load message topic and data
msg.SerializeMessageToBuffer(out byte[] buffer);
// Send to command server endpoint
using (var client = new ZSocket(ZSocketType.REQ))
{
client.SendTimeout = new TimeSpan(0, 0, 5);
client.ReceiveTimeout = new TimeSpan(0, 0, 5);
client.Connect(Settings.Instance.CmdClientUri);
ZFrame frame = new ZFrame(buffer);
bOK = client.Send(frame, out ZError zerror);
if (bOK)
{
using (ZFrame reply = client.ReceiveFrame())
{
byte[] resultBuffer = reply.Read();
msg = Message.DeserializeBufferToMessage(resultBuffer);
}
}
}
return(bOK);
}
catch (Exception ex)
{
error = $"Settings::Initialize error {ex.Message}";
Debug.WriteLine(error);
}
return(false);
}
/// <summary>
/// Sends a requestion and waits for the response
/// </summary>
/// <param name="req">The request to be sent to MegaMol</param>
/// <param name="timeout">The timeout when the function will throw an exception</param>
/// <returns>The response answer by MegaMol</returns>
public void Send(Request req, TimeSpan timeout)
{
if (req == null)
{
throw new ArgumentNullException("req");
}
socket.ReceiveTimeout = timeout;
socket.SendTimeout = timeout;
ZFrame reqData = req.MakeZMQRequest();
if (reqData == null)
{
throw new ArgumentException("req seemed illegal");
}
socket.Send(reqData);
//Response resp = null;
//using (ZFrame reply = socket.ReceiveFrame()) {
// Response r = new Response();
// r.Request = req; // set request first, because that object is required to parse the answer
// r.fromZFrameString(reply.ReadString(Encoding.UTF8));
// resp = r;
//}
//return resp;
}
public static void Move(string Direction)
{
string ServerAdress = "tcp://127.0.0.1:5" + Port + "6";
using (var context = new ZContext())
using (var requester = new ZSocket(context, ZSocketType.REQ))
{
requester.Connect(ServerAdress);
requester.Send(new ZFrame(PlayerName + ";" + Direction));
using (ZFrame reply = requester.ReceiveFrame())
{
if (reply.ReadString() == "Accepted")
{
Console.WriteLine("Accepted");
}
else
{
Console.WriteLine("error");
MessageBox.Show("Error (maybe name is already taken)", "error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
}
}
}
void ReadMessagesThread()
{
string uri = Settings.Instance.SubscribeUri;
using (var subscriber = new ZSocket(ZSocketType.SUB))
{
subscriber.ReceiveTimeout = new TimeSpan(0, 0, 5);
subscriber.Connect(uri);
foreach (var topic in Topics)
{
subscriber.Subscribe(topic);
}
do
{
try
{
using (ZFrame reply = subscriber.ReceiveFrame())
{
byte[] tempBuffer = reply.Read();
var msg = Message.DeserializeBufferToMessage(tempBuffer);
MessageCallback?.Invoke(msg);
}
}
catch (Exception ex)
{
Debug.WriteLine($"ReadMessagesThread Exception {ex.Message}");
}
}while (WaitEvent.WaitOne(1) == false);
}
}
public static void GetServerPort()
{
string ServerAdress = "tcp://127.0.0.1:5000";
using (var context = new ZContext())
using (var requester = new ZSocket(context, ZSocketType.REQ))
{
requester.Connect(ServerAdress);
requester.Send(new ZFrame("New"));
using (ZFrame reply = requester.ReceiveFrame())
{
String Answer = reply.ReadString();
if (Answer != "Error")
{
Console.WriteLine("Accept");
Port = Answer;
MessageBox.Show("Connecting to " + Port + "...", "Connecting...",
MessageBoxButtons.OK,
MessageBoxIcon.Information);
}
else
{
Console.WriteLine("error");
MessageBox.Show("Error (Get New Port)", "error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
}
}
}
public static void Auth(string Name)
{
GetServerPort();
string ServerAdress = "tcp://127.0.0.1:5" + Port + "5";
using (var context = new ZContext())
using (var requester = new ZSocket(context, ZSocketType.REQ))
{
requester.Connect(ServerAdress);
requester.Send(new ZFrame(Name));
using (ZFrame reply = requester.ReceiveFrame())
{
if (reply.ReadString() == "Accepted")
{
Console.WriteLine("Accept");
PlayerName = Name;
inpWindow.Close();
}
else
{
Console.WriteLine("error");
MessageBox.Show("Error (maybe name is already taken)", "error",
MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
}
}
}
static void Main(string[] args)
{
//
//Hello World Client
//
//Author: metadings
//
//Create
//using(var context = new ZContext())
using (var requester = new ZSocket(ZSocketType.REQ))
{
//Connect
requester.Connect("tcp://127.0.0.1:5555");
for (int n = 0; n < 10; n++)
{
//Message
string requestText = "Hello my friend";
Console.WriteLine("Sending {0}...", requestText);
//Send
requester.Send(new ZFrame(requestText));
//Receive
using (ZFrame reply = requester.ReceiveFrame())
{
Console.WriteLine("Received {0} {1}!", requestText, reply.ReadString());
Console.ReadKey();
}
}
}
}
public void ReceiveJson()
{
while (Thread.CurrentThread.IsAlive)
{
String request = null;
if (this.binded)
{
try
{
ZFrame frame = this.socket.ReceiveFrame();
request = frame.ReadString();
String reply = this.UpdateParams(request);
ZFrame message = new ZFrame(reply);
this.socket.Send(message);
}
catch (ZException e)
{
request = "Cannot receive message: " + e.Message;
}
}
else
{
request = "Cannot receive message: Not connected";
}
}
}
static void Main(string[] args)
{
string name = "World";
// Create
// using (var context = new ZContext())
using (var responder = new ZSocket(ZSocketType.REP))
{
// Bind
responder.Bind("tcp://*:5555");
while (true)
{
// Receive
using (ZFrame request = responder.ReceiveFrame())
{
Console.WriteLine("Received {0}", request.ReadString());
// Do some work
Thread.Sleep(1);
// Send
responder.Send(new ZFrame(name));
}
}
}
}
/// <summary>
/// 响应 服务器端
/// </summary>
/// <param name="port"></param>
/// <param name="messageHandler">不能为null，否则抛出异常,MessageHandler不能抛出异常</param>
public static void ReqServer(int port, Func <String, String> messageHandler)
{
//ZContext实例
using (ZContext context = new ZContext())
{
//ZSocket实例 响应
using (ZSocket responder = new ZSocket(context, ZSocketType.REP))
{
ZError zError = null;
bool result = responder.Bind($"tcp://*:{port}", out zError);
while (isRunning)
{
//接收消息
using (ZFrame request = responder.ReceiveFrame())
{
//Response socket always reply to the last client that sends a message.
String msg = request.ReadString(Encoding.UTF8);
String resp = messageHandler(msg);
responder.Send(new ZFrame(resp, Encoding.UTF8));
}
}
}
}
}
// .split service methods
// Here is the implementation of the methods that work on a service:
// Lazy constructor that locates a service by name or creates a new
// service if there is no service already with that name.
public Service RequireService(ZFrame serviceFrame)
{
if (serviceFrame == null)
{
throw new InvalidOperationException();
}
string name = serviceFrame.ToString();
Service service;
if (Services.ContainsKey(name))
{
service = Services[name];
}
else
{
service = new Service(this, name);
Services[name] = service;
//zhash_freefn(self->workers, id_string, s_worker_destroy);
if (Verbose)
{
"I: added service: '{0}'".DumpString(name);
}
}
return(service);
}
static void Main(string[] args)
{
Console.WriteLine("Hello World!");
using (var publisher = new ZSocket(ZSocketType.PUB))
{
string address = "tcp://*:5556";
Console.WriteLine("I: Publisher.Bind'ing on {0}", address);
publisher.Bind(address);
// Initialize random number generator
var rnd = new Random();
while (true)
{
// Get values that will fool the boss
int zipcode = rnd.Next(99999);
int temperature = rnd.Next(-55, +45);
// Send message to all subscribers
var update = string.Format("{0:D5} {1}", zipcode, temperature);
using (var updateFrame = new ZFrame(update))
{
publisher.Send(updateFrame);
}
}
}
}
// .split worker methods
// Here is the implementation of the methods that work on a worker:
// Lazy constructor that locates a worker by identity, or creates a new
// worker if there is no worker already with that identity.
public Worker RequireWorker(ZFrame identity)
{
if (identity == null)
{
throw new InvalidOperationException();
}
string idString;
using (var tstfrm = identity.Duplicate())
{
idString = tstfrm.Read().ToHexString();
}
Worker worker = Workers.ContainsKey(idString)
? Workers[idString]
: null;
if (worker == null)
{
worker = new Worker(idString, this, identity);
Workers[idString] = worker;
if (Verbose)
{
"I: registering new worker: '{0}'".DumpString(idString);
}
}
return(worker);
}
public static void HWClient(IDictionary <string, string> dict, string[] args)
{
//
// Hello World client
//
// Author: metadings
//
// Create
using (var context = ZContext.Create())
using (var requester = ZSocket.Create(context, ZSocketType.REQ))
{
// Connect
requester.Connect("tcp://127.0.0.1:5555");
for (int n = 0; n < 10; ++n)
{
string requestText = "Hello";
Console.Write("Sending {0}...", requestText);
// Send
using (var request = new ZFrame(requestText))
{
requester.Send(request);
}
// Receive
using (ZFrame reply = requester.ReceiveFrame())
{
Console.WriteLine(" Received: {0} {1}!", requestText, reply.ReadString());
}
}
}
}
public static void Main(string[] args)
{
if (args == null || args.Length < 1)
{
Console.WriteLine(" Клиент подключен к адресу");
Console.WriteLine(" tcp://192.168.0.102:5555");
Console.WriteLine();
args = new string[] { "tcp://192.168.0.102:5555" };
}
string endpoint = args[0];
// Create
using (var context = new ZContext())
using (var requester = new ZSocket(context, ZSocketType.REQ))
{
// Connect
requester.Connect(endpoint);
Console.WriteLine("Отправь сообщение: \n");
string requestText = Console.ReadLine();
Console.WriteLine("Sending {0}…", requestText);
Console.WriteLine();
// Send
requester.Send(new ZFrame(requestText));
// Receive
using (ZFrame reply = requester.ReceiveFrame())
{
Console.WriteLine(" Вы отправили сообщение: {0}, Длина сообщения: {1}\n", requestText, reply.ReadString());
}
}
}
static void Main(string[] args)
{
Console.WriteLine("BPMN worker server");
// Create
using (var context = new ZContext())
using (var responder = new ZSocket(context, ZSocketType.REP))
{
// Bind
responder.Bind("tcp://*:5555");
while (true)
{
// Receive
using (ZFrame request = responder.ReceiveFrame())
{
var flow = request.ReadString();
if (flow.StartsWith("<?xml")) //Just for demo purposes
{
var p = new Process(new MemoryStream(Encoding.UTF8.GetBytes(flow)));
var processInstance = p.NewProcessInstance();
processInstance.SetDefaultHandlers();
processInstance.SetHandler("task", new ZMQTaskHandler());
//processInstance.SetHandler("endEvent", new ZMQEndHandler(responder));
processInstance.Start(new Dictionary <string, object>());
}
responder.Send(new ZFrame("Work Done"));
}
}
}
}
private static void Main(string[] args)
{
try
{
var options = new Options();
var parser = new CommandLineParser(new CommandLineParserSettings(Console.Error));
if (!parser.ParseArguments(args, options))
{
Environment.Exit(1);
}
using (var context = ZContext.Create())
{
using (var socket = new ZSocket(context, ZSocketType.PUSH))
{
foreach (var endPoint in options.BindEndPoints)
{
socket.Bind(endPoint);
}
long msgCptr = 0;
var msgIndex = 0;
while (true)
{
if (msgCptr == long.MaxValue)
{
msgCptr = 0;
}
msgCptr++;
if (options.MaxMessage >= 0)
{
if (msgCptr > options.MaxMessage)
{
break;
}
}
if (msgIndex == options.AltMessages.Count())
{
msgIndex = 0;
}
var msg = options.AltMessages[msgIndex++].Replace("#nb#", msgCptr.ToString("d2"));
Thread.Sleep(options.Delay);
Console.WriteLine("Pushing: " + msg);
var msgFrame = new ZFrame(msg, Encoding.UTF8);
socket.Send(msgFrame);
}
}
}
}
catch (Exception exp)
{
Console.WriteLine(exp.Message);
}
}
private static void Main(string[] args)
{
var options = new Options();
var parser = new CommandLineParser(new CommandLineParserSettings(Console.Error));
if (!parser.ParseArguments(args, options))
{
Environment.Exit(1);
}
using (var context = ZContext.Create())
{
using (var socket = new ZSocket(context, ZSocketType.REP))
{
foreach (var bindEndPoint in options.BindEndPoints)
{
socket.Bind(bindEndPoint);
}
while (true)
{
Thread.Sleep(options.Delay);
var rcvdFrame = socket.ReceiveFrame();
var rcvdMsg = rcvdFrame.ReadString(Encoding.UTF8);
Console.WriteLine("Received: " + rcvdMsg);
var replyMsg = options.ReplyMessage.Replace("#msg#", rcvdMsg);
var replyFrame = new ZFrame(replyMsg);
Console.WriteLine("Sending : " + replyMsg + Environment.NewLine);
socket.Send(replyFrame);
}
}
}
}
public static void Main(string[] args)
{
var endpoint = "tcp://191.232.181.23:5560";
using (var context = new ZContext())
using (var socket = new ZSocket(context, ZSocketType.REQ))
{
Console.WriteLine($"Conectando-se ao endpoint {endpoint}");
socket.Connect(endpoint);
var count = 1;
while (count < 10001)
{
var frame = new ZFrame(count.ToString());
socket.Send(frame);
var reply = socket.ReceiveFrame();
Console.WriteLine($"Resposta {reply.ToString()} recebida");
count++;
}
Console.ReadLine();
}
}
static void RTReq_Worker(int i)
{
using (var context = new ZContext())
using (var worker = new ZSocket(context, ZSocketType.REQ))
{
worker.IdentityString = "PEER" + i; // Set a printable identity
worker.Connect("tcp://127.0.0.1:5671");
int total = 0;
while (true)
{
// Tell the broker we're ready for work
worker.Send(new ZFrame("Hi Boss"));
// Get workload from broker, until finished
using (ZFrame frame = worker.ReceiveFrame())
{
//Console.WriteLine($"worker receive data: {frame.ReadString()}");
var finished = (frame.ReadString() == "Fired!");
if (finished)
{
break;
}
}
total++;
// Do some random work
Thread.Sleep(1);
}
Console.WriteLine("Completed: PEER{0}, {1} tasks", i, total);
}
}
public static void RRClient(IDictionary <string, string> dict, string[] args)
{
//
// Hello World client
// Connects REQ socket to tcp://localhost:5559
// Sends "Hello" to server, expects "World" back
//
// Authors: Pieter Hintjens, Uli Riehm
//
// Socket to talk to server
using (var context = ZContext.Create())
using (var requester = ZSocket.Create(context, ZSocketType.REQ))
{
requester.Connect("tcp://127.0.0.1:5559");
for (int n = 0; n < 10; ++n)
{
using (var request = new ZFrame("Hello"))
{
requester.Send(request);
}
using (ZFrame reply = requester.ReceiveFrame())
{
Console.WriteLine("Hello {0}!", reply.ReadString());
}
}
}
}
static ZFrame FLClient1_TryRequest(ZContext context, string endpoint, ZFrame request)
{
Console.WriteLine("I: trying echo service at {0}...", endpoint);
using (var client = ZSocket.Create(context, ZSocketType.REQ))
{
client.Connect(endpoint);
// Send request, wait safely for reply
using (var message = ZFrame.CopyFrom(request))
{
client.Send(message);
}
var poll = ZPollItem.CreateReceiver();
ZError error;
ZMessage incoming;
if (client.PollIn(poll, out incoming, out error, FLClient1_REQUEST_TIMEOUT))
{
return(incoming[0]);
}
}
return(null);
}
public static void RRClient(string[] args)
{
//
// Hello World client
// Connects REQ socket to tcp://127.0.0.1:5559
// Sends "Hello" to server, expects "World" back
//
// Author: metadings
//
// Socket to talk to server
using (var context = new ZContext())
using (var requester = new ZSocket(context, ZSocketType.REQ))
{
requester.Connect("tcp://127.0.0.1:5559");
for (int n = 0; n < 10; ++n)
{
requester.Send(new ZFrame("Hello"));
using (ZFrame reply = requester.ReceiveFrame())
{
Console.WriteLine("Hello {0}!", reply.ReadString());
}
}
}
}
public static void MsgServer(string name)
{
int requestCount = 0;
using (var context = new ZContext())
using (var responder = new ZSocket(context, ZSocketType.REP))
{
responder.Bind("tcp://*:5555");
while (true)
{
// Receive
using (ZFrame request = responder.ReceiveFrame())
{
++requestCount;
Console.WriteLine("Hifrend received request #{0}: {1}", requestCount, request.ReadString());
// Do some work
Thread.Sleep(1);
responder.Send(new ZFrame(name));
}
}
}
}
/// <summary>
/// Forwards replies from the backend socket to the frontend socket.
/// </summary>
protected override bool BackendHandler(ZSocket sock, out ZMessage message, out ZError error)
{
error = default(ZError);
message = null;
// receiving scope
// DEALER: normal movemsg
ZMessage incoming = null;
if (!sock.ReceiveMessage(ref incoming, /* ZSocketFlags.DontWait */ ZSocketFlags.None, out error))
{
return false;
}
using (incoming)
{
// STREAM: write frames: identity, body, identity, empty
// Read identity
int ic = (int)incoming[0].Length;
var identityBytes = new byte[ic];
incoming[0].Read(identityBytes, 0, ic);
// Remove DEALER's delimiter
incoming.RemoveAt(1);
// Append Identity frame
var identity0 = new ZFrame(identityBytes);
incoming.Add(identity0);
// Append STREAM's empty delimiter frame
incoming.Add(new ZFrame());
if (!SendMsg(FrontendSocket, incoming, out error))
{
return false;
}
}
return true;
}
/// <summary>
///
/// </summary>
/// <param name="idString"></param>
/// <param name="broker"></param>
/// <param name="identity">will be dublicated inside the constructor</param>
public Worker(string idString, Broker broker, ZFrame identity)
{
Broker = broker;
IdString = idString;
Identity = identity.Duplicate();
}
// .split worker methods
// Here is the implementation of the methods that work on a worker:
// Lazy constructor that locates a worker by identity, or creates a new
// worker if there is no worker already with that identity.
public Worker RequireWorker(ZFrame identity)
{
if (identity == null)
throw new InvalidOperationException();
string idString;
using (var tstfrm = identity.Duplicate())
{
idString = tstfrm.Read().ToHexString();
}
Worker worker = Workers.ContainsKey(idString)
? Workers[idString]
: null;
if (worker == null)
{
worker = new Worker(idString, this, identity);
Workers[idString] = worker;
if(Verbose)
"I: registering new worker: '{0}'".DumpString(idString);
}
return worker;
}
// .split service methods
// Here is the implementation of the methods that work on a service:
// Lazy constructor that locates a service by name or creates a new
// service if there is no service already with that name.
public Service RequireService(ZFrame serviceFrame)
{
if(serviceFrame == null)
throw new InvalidOperationException();
string name = serviceFrame.ToString();
Service service;
if (Services.ContainsKey(name))
{
service = Services[name];
}
else
{
service = new Service(this, name);
Services[name] = service;
//zhash_freefn(self->workers, id_string, s_worker_destroy);
if (Verbose)
"I: added service: '{0}'".DumpString(name);
}
return service;
}
// .split broker client_msg method
// Process a request coming from a client. We implement MMI requests
// directly here (at present, we implement only the mmi.service request):
public void ClientMsg(ZFrame sender, ZMessage msg)
{
// service & body
if(msg.Count < 2)
throw new InvalidOperationException();
using (ZFrame serviceFrame = msg.Pop())
{
Service service = RequireService(serviceFrame);
// Set reply return identity to client sender
msg.Wrap(sender.Duplicate());
//if we got a MMI Service request, process that internally
if (serviceFrame.Length >= 4
&& serviceFrame.ToString().StartsWith("mmi."))
{
string returnCode;
if (serviceFrame.ToString().Equals("mmi.service"))
{
string name = msg.Last().ToString();
returnCode = Services.ContainsKey(name)
&& Services[name].Workers > 0
? "200"
: "404";
}
else
returnCode = "501";
var client = msg.Unwrap();
msg.Clear();
msg.Add(new ZFrame(returnCode));
msg.Prepend(serviceFrame);
msg.Prepend(new ZFrame(MdpCommon.MDPC_CLIENT));
msg.Wrap(client);
Socket.Send(msg);
}
else
{
// Else dispatch the message to the requested Service
service.Dispatch(msg);
}
}
}
// .split broker worker_msg method
// This method processes one READY, REPLY, HEARTBEAT, or
// DISCONNECT message sent to the broker by a worker:
public void WorkerMsg(ZFrame sender, ZMessage msg)
{
if(msg.Count < 1) // At least, command
throw new InvalidOperationException();
ZFrame command = msg.Pop();
//string id_string = sender.ReadString();
bool isWorkerReady;
//string id_string;
using (var sfrm = sender.Duplicate())
{
var idString = sfrm.Read().ToHexString();
isWorkerReady = Workers.ContainsKey(idString);
}
Worker worker = RequireWorker(sender);
using (msg)
using (command)
{
if (command.StrHexEq(MdpCommon.MdpwCmd.READY))
{
if (isWorkerReady)
// Not first command in session
worker.Delete(true);
else if (command.Length >= 4
&& command.ToString().StartsWith("mmi."))
// Reserd servicee name
worker.Delete(true);
else
{
// Attach worker to service and mark as idle
using (ZFrame serviceFrame = msg.Pop())
{
worker.Service = RequireService(serviceFrame);
worker.Service.Workers++;
worker.Waiting();
}
}
}
else if (command.StrHexEq(MdpCommon.MdpwCmd.REPLY))
{
if (isWorkerReady)
{
// Remove and save client return envelope and insert the
// protocol header and service name, then rewrap envelope.
ZFrame client = msg.Unwrap();
msg.Prepend(new ZFrame(worker.Service.Name));
msg.Prepend(new ZFrame(MdpCommon.MDPC_CLIENT));
msg.Wrap(client);
Socket.Send(msg);
worker.Waiting();
}
else
{
worker.Delete(true);
}
}
else if (command.StrHexEq(MdpCommon.MdpwCmd.HEARTBEAT))
{
if (isWorkerReady)
{
worker.Expiry = DateTime.UtcNow + MdpCommon.HEARTBEAT_EXPIRY;
}
else
{
worker.Delete(true);
}
}
else if (command.StrHexEq(MdpCommon.MdpwCmd.DISCONNECT))
worker.Delete(false);
else
{
msg.DumpZmsg("E: invalid input message");
}
}
}
// .split broker client_msg method
// Process a request coming from a client. We implement MMI requests
// directly here (at present, we implement only the mmi.service request):
public void ClientMsg(ZFrame sender, ZMessage msg)
{
// service & body
if(msg.Count < 2)
throw new InvalidOperationException();
using (ZFrame serviceFrame = msg.Pop())
{
Service service = RequireService(serviceFrame);
// Set reply return identity to client sender
msg.Wrap(sender.Duplicate());
//if we got a MMI Service request, process that internally
if (serviceFrame.Length >= 4
&& serviceFrame.ToString().StartsWith("mmi."))
{
string returnCode;
if (serviceFrame.ToString().Equals("mmi.service"))
{
string name = msg.Last().ToString();
returnCode = Services.ContainsKey(name)
&& Services[name].Workers > 0
? "200"
: "400";
}
else
returnCode = "501";
using (var resetableFrame = msg.Pop())
{
msg.Prepend(new ZFrame(returnCode));
}
//ToDo check c implementation
throw new NotImplementedException("ToDo: fix this section, never tested. contains errors mmi services never called with the mdclient/mdbroker/mdworker examples");
//## following code has some errors
// Remove & save client return envelope and insert the
// protocol header and Service name, then rewrap envelope.
ZFrame client = msg.Unwrap();
msg.Prepend(serviceFrame);
msg.Prepend(new ZFrame(MdpCommon.MDPC_CLIENT));
msg.Wrap(client);
Socket.Send(msg);
}
else
{
// Else dispatch the message to the requested Service
service.Dispatch(msg);
}
}
}
