Multiple socket poller 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 MSPoller(string[] args)
{
//
// Reading from multiple sockets
// This version uses zmq_poll()
//
// Author: metadings
//

using (var context = new ZContext())
using (var receiver = new ZSocket(context, ZSocketType.PULL))
using (var subscriber = new ZSocket(context, ZSocketType.SUB))
{
// Connect to task ventilator
receiver.Connect("tcp://127.0.0.1:5557");

// Connect to weather server
subscriber.Connect("tcp://127.0.0.1:5556");
subscriber.SetOption(ZSocketOption.SUBSCRIBE, "10001 ");

var poll = ZPollItem.CreateReceiver();

// Process messages from both sockets
ZError error;
ZMessage msg;
while (true)
{
if (receiver.PollIn(poll, out msg, out error, TimeSpan.FromMilliseconds(64)))
{
// Process task
}
else
{
if (error == ZError.ETERM)
return; // Interrupted
if (error != ZError.EAGAIN)
throw new ZException(error);
}

if (subscriber.PollIn(poll, out msg, out error, TimeSpan.FromMilliseconds(64)))
{
// Process weather update
}
else
{
if (error == ZError.ETERM)
return; // Interrupted
if (error != ZError.EAGAIN)
throw new ZException(error);
}
}
}
}
}
}