Initial data commit

Task/Echo-server/C-sharp/echo-server.cs

@@ -0,0 +1,63 @@
+using System.Net.Sockets;
+using System.Threading;
+
+namespace ConsoleApplication1
+{
+    class Program
+    {
+        static TcpListener listen;
+        static Thread serverthread;
+
+        static void Main(string[] args)
+        {
+            listen = new TcpListener(System.Net.IPAddress.Parse("127.0.0.1"), 12321);
+            serverthread = new Thread(new ThreadStart(DoListen));
+            serverthread.Start();
+        }
+
+        private static void DoListen()
+        {
+            // Listen
+            listen.Start();
+            Console.WriteLine("Server: Started server");
+
+            while (true)
+            {
+                Console.WriteLine("Server: Waiting...");
+                TcpClient client = listen.AcceptTcpClient();
+                Console.WriteLine("Server: Waited");
+
+                // New thread with client
+                Thread clientThread = new Thread(new ParameterizedThreadStart(DoClient));
+                clientThread.Start(client);
+            }
+        }
+
+        private static void DoClient(object client)
+        {
+            // Read data
+            TcpClient tClient = (TcpClient)client;
+
+            Console.WriteLine("Client (Thread: {0}): Connected!", Thread.CurrentThread.ManagedThreadId);
+            do
+            {
+                if (!tClient.Connected)
+                {
+                    tClient.Close();
+                    Thread.CurrentThread.Abort();       // Kill thread.
+                }
+
+                if (tClient.Available > 0)
+                {
+                    // Resend
+                    byte pByte = (byte)tClient.GetStream().ReadByte();
+                    Console.WriteLine("Client (Thread: {0}): Data {1}", Thread.CurrentThread.ManagedThreadId, pByte);
+                    tClient.GetStream().WriteByte(pByte);
+                }
+
+                // Pause
+                Thread.Sleep(100);
+            } while (true);
+        }
+    }
+}