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	stwalkerster
	Mar 17 2018, 6:43 PM

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	namespace foo
	{
	using System.Threading;
	using ZeroMQ;

	internal class zmq_sender
	{
	public static void Main(string[] args)
	{
	// fancy stuff to queue up three instances of DoStuff on different threads, and wait until they're all done
	// most of this is waiting-for-completion garbage, the key bits are ThreadPool.QueueUserWorkItem() which
	// takes a method or lambda, and DoStuff().
	int instances = 3;
	var mre = new WaitHandle[instances];
	for (int i = 0; i < instances; i++)
	{
	mre[i] = new ManualResetEvent(false);
	var current = (ManualResetEvent)mre[i];
	int c = i;

	ThreadPool.QueueUserWorkItem(
	x =>
	{
	try
	{
	DoStuff(c);
	}
	finally
	{
	current.Set();
	}
	});
	}

	WaitHandle.WaitAll(mre);
	}

	// emulates a client. Connects, sends three things, disconnects.
	private static void DoStuff(int i)
	{
	using (var context = new ZContext())
	{
	using (var sock = new ZSocket(context, ZSocketType.PUB){})
	{
	sock.Connect("tcp://127.0.0.1:12345");

	sock.Send(new ZFrame(i + ": test 1"));
	Thread.Sleep(1000);
	sock.Send(new ZFrame(i + ": test 2"));
	Thread.Sleep(1000);
	sock.Send(new ZFrame(i + ": test 3"));
	}
	}
	}
	}

	internal class zmq_receiver
	{
	// connects, binds to socket, and prints whatever it receives.
	public static void Main(string[] args)
	{
	var context = new ZContext();
	var sock = new ZSocket(context, ZSocketType.SUB);
	sock.Bind("tcp://*:12345");
	sock.SubscribeAll();

	while (true)
	{
	using (ZFrame request = sock.ReceiveFrame())
	{
	Console.WriteLine(request.ReadString());
	}
	}
	}
	}
	}
	/*

	OUTPUT:
	0: test 1
	2: test 1
	1: test 1
	0: test 2
	2: test 2
	1: test 2
	2: test 3
	1: test 3
	0: test 3