我正在尝试使用ZeroMQ并试图让某些东西正常工作。我的第一个想法是使用inproc传输设置REP / REQ，看看我是否可以在两个线程之间发送消息。以下大部分代码都来自clzmq示例，但它似乎不起作用。
服务器和客户端都绑定到传输，但是当客户端尝试执行Send时，它会阻塞并且只是坐在那里。我没有ZeroMQ经验所以我不确定在哪里先看，任何帮助将不胜感激。这是违规（攻击性）代码：
using System;
using System.Diagnostics;
using System.Threading;
using NUnit.Framework;
using ZMQ;
namespace PostBox
{
[TestFixture]
public class Class1
{
private const string Address = "inproc://test";
private const uint MessageSize = 10;
private const int RoundtripCount = 100;
[Test]
public void Should()
{
var clientThread = new Thread(StartClient);
clientThread.Start();
var serverThread = new Thread(StartServer);
serverThread.Start();
clientThread.Join();
serverThread.Join();
Console.WriteLine("Done with life");
}
private void StartServer()
{
// Initialise 0MQ infrastructure
using (var ctx = new Context(1))
{
using (var skt = ctx.Socket(SocketType.REP))
{
skt.Bind(Address);
Console.WriteLine("Server has bound");
// Bounce the messages.
for (var i = 0; i < RoundtripCount; i++)
{
var msg = skt.Recv();
Debug.Assert(msg.Length == MessageSize);
skt.Send(msg);
}
Thread.Sleep(1000);
}
}
Console.WriteLine("Done with server");
}
private void StartClient()
{
Thread.Sleep(2000);
// Initialise 0MQ infrastructure
using (var ctx = new Context(1))
{
using (var skt = ctx.Socket(SocketType.REQ))
{
skt.Bind(Address);
Console.WriteLine("Client has bound");
// Create a message to send.
var msg = new byte[MessageSize];
// Start measuring the time.
var watch = new Stopwatch();
watch.Start();
// Start sending messages.
for (var i = 0; i < RoundtripCount; i++)
{
skt.Send(msg);
msg = skt.Recv();
Debug.Assert(msg.Length == MessageSize);
Console.Write(".");
}
// Stop measuring the time.
watch.Stop();
var elapsedTime = watch.ElapsedTicks;
// Print out the test parameters.
Console.WriteLine("message size: " + MessageSize + " [B]");
Console.WriteLine("roundtrip count: " + RoundtripCount);
// Compute and print out the latency.
var latency = (double)(elapsedTime) / RoundtripCount / 2 *
1000000 / Stopwatch.Frequency;
Console.WriteLine("Your average latency is {0} [us]",
latency.ToString("f2"));
}
}
Console.WriteLine("Done with client");
}
}
}
编辑：
我在以下答案的帮助下完成了这项工作，但它还要求我将Bind更改为Connect，这在您考虑它时是有意义的，因为我们有服务器绑定到当地的交通工具和连接到远程交通工具的客户。这是更新后的代码：
using System;
using System.Diagnostics;
using System.Threading;
using NUnit.Framework;
using ZMQ;
namespace PostBox
{
[TestFixture]
public class Class1
{
private const string Address = "inproc://test";
private const uint MessageSize = 10;
private const int RoundtripCount = 100;
private static Context ctx;
[Test]
public void Should()
{
using (ctx = new Context(1))
{
var clientThread = new Thread(StartClient);
clientThread.Start();
var serverThread = new Thread(StartServer);
serverThread.Start();
clientThread.Join();
serverThread.Join();
Console.WriteLine("Done with life");
}
}
private void StartServer()
{
try
{
using (var skt = ctx.Socket(SocketType.REP))
{
skt.Bind(Address);
Console.WriteLine("Server has bound");
// Bounce the messages.
for (var i = 0; i < RoundtripCount; i++)
{
var msg = skt.Recv();
Debug.Assert(msg.Length == MessageSize);
skt.Send(msg);
}
Thread.Sleep(1000);
}
Console.WriteLine("Done with server");
}
catch (System.Exception e)
{
Console.WriteLine(e.Message);
}
}
private void StartClient()
{
Thread.Sleep(2000);
try
{
// Initialise 0MQ infrastructure
using (var skt = ctx.Socket(SocketType.REQ))
{
skt.Connect(Address);
Console.WriteLine("Client has bound");
// Create a message to send.
var msg = new byte[MessageSize];
// Start measuring the time.
var watch = new Stopwatch();
watch.Start();
// Start sending messages.
for (var i = 0; i < RoundtripCount; i++)
{
skt.Send(msg);
msg = skt.Recv();
Debug.Assert(msg.Length == MessageSize);
Console.Write(".");
}
// Stop measuring the time.
watch.Stop();
var elapsedTime = watch.ElapsedTicks;
// Print out the test parameters.
Console.WriteLine("message size: " + MessageSize + " [B]");
Console.WriteLine("roundtrip count: " + RoundtripCount);
// Compute and print out the latency.
var latency = (double)(elapsedTime) / RoundtripCount / 2 *
1000000 / Stopwatch.Frequency;
Console.WriteLine("Your average latency is {0} [us]",
latency.ToString("f2"));
}
Console.WriteLine("Done with client");
}
catch (System.Exception e)
{
Console.WriteLine(e.Message);
}
}
}
}
答案 0 :(得分：14)
我相信，两个线程都需要使用相同的Context。 Zeromq指南建议不要在进程中使用多个上下文。 创建上下文，在两个线程之间共享该上下文。这应该有用。
来自http://zguide.zeromq.org/chapter:all
您必须为您的流程创建一个“上下文”对象，并将其传递给 所有线程。上下文收集ØMQ的状态。创建连接 跨越inproc：transport，服务器和客户端线程都必须共享 相同的上下文对象。
答案 1 :(得分：2)
只有一端可以绑定另一端必须连接，你可以有多个连接。