我正在尝试 ZeroMQ 并试图得到某物在职的。我的第一个想法是使用 inproc 传输设置 REP/REQ，看看是否可以在两个线程之间发送消息。下面的大部分代码取自 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它会阻塞并坐在那里。我没有 ZeroMQ 经验，所以我不知道该先看哪里，任何帮助将不胜感激。这是令人反感的（进攻性）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");
}
}
}
Edit:
我在下面的答案的帮助下得到了这个工作，但它也需要我改变Bind to a Connect，当您考虑它时，这是有道理的，因为我们有一个绑定到本地传输的服务器和一个连接到远程传输的客户端。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);
}
}
}
}
我相信，两个线程都需要使用相同的上下文。 Zeromq 指南建议不要在一个进程中使用多个上下文。
创建一个上下文，在两个线程之间共享该上下文。这应该有效。
From http://zguide.zeromq.org/chapter:all 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
across the inproc: 传输，服务器和客户端线程必须共享
相同的上下文对象。
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