much more robust server

OpenRA.Server/Class1.cs

@@ -4,45 +4,72 @@ using System.Linq;
 using System.Text;
 using System.Net.Sockets;
 using System.Threading;
+using System.IO;
+using System.Net;
 
 namespace OpenRA.Server
 {
-	class Program
+	static class Program
 	{
 		static void Main(string[] args)
 		{
-			var left = new TcpListener(1234);
+			var listener = new TcpListener(IPAddress.Any, 1234);
-			left.Start();
+			var clients = new List<TcpClient>();
-			var right = new TcpListener(1235);
-			right.Start();
 
-			var lc = left.AcceptTcpClient();
+			listener.Start();
-			lc.NoDelay = true; 
-			var l = lc.GetStream();
 
-			var rc = right.AcceptTcpClient();
+			for (; ; )
-			rc.NoDelay = true;
-			var r = rc.GetStream();
-
-			var ll = new Thread(RW(l, r));
-			var rr = new Thread(RW(r, l));
-			ll.Start();
-			rr.Start();
-
-			ll.Join();
-		}
-
-		static ThreadStart RW(NetworkStream a, NetworkStream b)
-		{
-			return () =>
 			{
-				var buf = new byte[4096];
+				try
-				while (true)
 				{
-					var len = a.Read(buf, 0, 4096);
+					var conn = listener.AcceptTcpClient();
-					b.Write(buf, 0, len);
+					conn.NoDelay = true;
+					Console.WriteLine("Accepted connection from {0}", 
+						conn.Client.RemoteEndPoint.ToString());
+
+					new Thread(() =>
+					{
+						lock (clients)
+							clients.Add(conn);
+
+						var ns = conn.GetStream();
+
+						try
+						{
+							for (; ; )
+							{
+								var frame = BitConverter.ToInt32(ns.Read(4), 0);
+								var length = BitConverter.ToInt32(ns.Read(4), 0);
+								var data = ns.Read(length);
+
+								lock (clients)
+									foreach (var c in clients)
+										if (c != conn)
+										{
+											var otherStream = c.GetStream();
+											otherStream.Write(BitConverter.GetBytes(frame));
+											otherStream.Write(BitConverter.GetBytes(length));
+											otherStream.Write(data);
+										}
+							}
+						}
+						catch (Exception e)
+						{
+							Console.WriteLine("Client dropped: {0}", conn.Client.RemoteEndPoint.ToString());
+
+							lock (clients)
+								clients.Remove(conn);
+						}
+					}) { IsBackground = true }.Start();
 				}
-			};
+				catch (Exception e)
+				{
+					Console.WriteLine(e.ToString());
+				}
+			}
 		}
+
+		public static void Write(this Stream s, byte[] data) { s.Write(data, 0, data.Length); }
+		public static byte[] Read(this Stream s, int len) { var data = new byte[len]; s.Read(data, 0, len); return data; }
 	}
 }