/NodeRxTestClient/Program.cs

using System;

using System.IO;

using System.Net;

using System.Net.Sockets;

using System.Reactive;

using System.Reactive.Linq;

using System.Text;



namespace NodeRxTestClient {

	class Program {

		static void Main(string[] args) {

			var ipAddress = IPAddress.Loopback;

			var port = 1001;

			var message = Encoding.ASCII.GetBytes("Hello, world!");



			var connect = Observable.Defer(() =>

				Observable.Using(() => new TcpClient(), client =>

					AsyncConnect(client, ipAddress, port)

						.Select(_ => client.GetStream())

						.SelectMany(stream => AsyncWrite(stream, message).Finally(stream.Flush))))

				.Repeat(10);



			using (connect.Subscribe()) {

				Console.WriteLine("Press ENTER to stop connecting.");

				Console.ReadLine();

			}

		}



		static IObservable<Unit> AsyncConnect(TcpClient client, IPAddress ipAddress, int port) {

			var connect = Observable.FromAsyncPattern<IPAddress, int>(client.BeginConnect, client.EndConnect);

			return Observable.Defer(() => connect(ipAddress, port));

		}



		static IObservable<Unit> AsyncWrite(Stream stream, byte[] bytes) {

			var write = Observable.FromAsyncPattern<byte[], int, int>(stream.BeginWrite, stream.EndWrite);

			return write(bytes, 0, bytes.Length);

		}

	}

}