【发布时间】：2011-05-20 00:22:43
【问题描述】：
我正在试验 ZeroMQ 并试图让 某事 正常工作。我的第一个想法是使用 inproc 传输设置 REP/REQ 以查看是否可以在两个线程之间发送消息。下面的大部分代码都取自 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 时，它会阻塞并坐在那里。我没有 ZeroMQ 经验，所以我不确定从哪里开始，任何帮助将不胜感激。这是冒犯（冒犯）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;
[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，但它还需要我将 Bind 更改为 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);
}
}
}
}
【问题讨论】：