Handling Ctrl-C cleanly in C#

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;

using ZeroMQ;

namespace Examples
{
static partial class Program
{
public static void Interrupt(string[] args)
{
//
// Interrupt
//
// Author: metadings
//

if (args == null || args.Length == 0)
{
args = new string[] { "World" };
}

string name = args[0];

var error = default(ZError);

using (var context = new ZContext())
using (var responder = new ZSocket(context, ZSocketType.REP))
{
Console.CancelKeyPress += (s, ea) =>
{
ea.Cancel = true;
context.Shutdown();
};

responder.Bind("tcp://*:5555");

ZFrame request;

while (true)
{
if (Console.KeyAvailable)
{
ConsoleKeyInfo info = Console.ReadKey(true);
/* if (info.Modifiers == ConsoleModifiers.Control && info.Key == ConsoleKey.C)
{
context.Shutdown();
} /**/

if (info.Key == ConsoleKey.Escape)
{
context.Shutdown();
}
}

if (null == (request = responder.ReceiveFrame(ZSocketFlags.DontWait, out error)))
{
if (error == ZError.EAGAIN)
{
Thread.Sleep(1);
continue;
}
if (error == ZError.ETERM)
break; // Interrupted
throw new ZException(error);
}

using (request)
{
Console.Write("Received: {0}!", request.ReadString());

Thread.Sleep(512); // See also the much slower reaction

Console.WriteLine(" Sending {0}… ", name);

if (!responder.Send(new ZFrame(name), out error))
{
if (error == ZError.ETERM)
break; // Interrupted
throw new ZException(error);
}
}
}

if (error == ZError.ETERM)
{
Console.WriteLine("Terminated! You have pressed CTRL+C or ESC.");
return;
}
throw new ZException(error);
}
}
}
}