From b93e11e986e2cf52e96cf8c056255e95bb12644a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Manuel=20V=C3=B6gele?= <develop@manuel-voegele.de>
Date: Tue, 25 Mar 2014 20:36:22 +0100
Subject: [PATCH] =?UTF-8?q?Meine=20L=C3=B6sung=20f=C3=BCr=20Aufgabenblatt?=
 =?UTF-8?q?=202?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 dummyclient_manuel/Program.cs  | 17 +++++++
 dummyclient_manuel/Receiver.cs | 24 +++++++++
 dummyclient_manuel/Sender.cs   | 26 ++++++++++
 dummyclient_manuel/Terminal.cs | 91 ++++++++++++++++++++++++++++++++++
 4 files changed, 158 insertions(+)
 create mode 100644 dummyclient_manuel/Program.cs
 create mode 100644 dummyclient_manuel/Receiver.cs
 create mode 100644 dummyclient_manuel/Sender.cs
 create mode 100644 dummyclient_manuel/Terminal.cs

diff --git a/dummyclient_manuel/Program.cs b/dummyclient_manuel/Program.cs
new file mode 100644
index 0000000..d33c2f8
--- /dev/null
+++ b/dummyclient_manuel/Program.cs
@@ -0,0 +1,17 @@
+using System.Net.Sockets;
+using System.Threading;
+
+public class Program
+{
+	public static void Main ()
+	{
+		Terminal terminal = new Terminal ();
+		TcpClient client = new TcpClient ("localhost", 9999);
+		Receiver receiver = new Receiver (client.GetStream (), terminal);
+		Sender sender = new Sender (client.GetStream (), terminal);
+		Thread receiverThread = new Thread (new ThreadStart (receiver.Receive));
+		receiverThread.Start ();
+		sender.Send ();
+		client.Close ();
+	}
+}
\ No newline at end of file
diff --git a/dummyclient_manuel/Receiver.cs b/dummyclient_manuel/Receiver.cs
new file mode 100644
index 0000000..89db337
--- /dev/null
+++ b/dummyclient_manuel/Receiver.cs
@@ -0,0 +1,24 @@
+using System;
+using System.IO;
+using System.Net.Sockets;
+
+class Receiver
+{
+	private StreamReader Reader;
+	private Terminal Term;
+
+	public Receiver (NetworkStream stream, Terminal terminal)
+	{
+		this.Reader = new StreamReader(stream);
+		this.Term = terminal;
+	}
+
+	public void Receive ()
+	{
+		while (true) {
+			String line = Reader.ReadLine();
+			Term.PrintLine(line);
+		}
+	}
+
+}
diff --git a/dummyclient_manuel/Sender.cs b/dummyclient_manuel/Sender.cs
new file mode 100644
index 0000000..eb71de9
--- /dev/null
+++ b/dummyclient_manuel/Sender.cs
@@ -0,0 +1,26 @@
+using System;
+using System.IO;
+using System.Net.Sockets;
+using System.Text;
+
+public class Sender
+{
+	private NetworkStream NStream;
+	private Terminal Term;
+
+	public Sender (NetworkStream stream, Terminal terminal)
+	{
+		this.Term = terminal;
+		this.NStream = stream;
+	}
+
+	public void Send ()
+	{
+		while (true) {
+			String line = Term.ReadLine ();
+			line += "\n";
+			byte[] bytes = Encoding.UTF8.GetBytes(line);
+			NStream.Write (bytes, 0, bytes.Length);
+		}
+	}
+}
\ No newline at end of file
diff --git a/dummyclient_manuel/Terminal.cs b/dummyclient_manuel/Terminal.cs
new file mode 100644
index 0000000..5e9f25d
--- /dev/null
+++ b/dummyclient_manuel/Terminal.cs
@@ -0,0 +1,91 @@
+using System;
+using System.Threading;
+
+public class Terminal
+{
+	private Object TerminalLock = new Object ();
+	private Object ReadLineLock = new Object ();
+	private AutoResetEvent ResetEvent = new AutoResetEvent(false);
+	private String InputBuffer = "";
+	private bool AcceptInput = false;
+	private int OutLinePos;
+
+	public Terminal ()
+	{
+		OutLinePos = Console.CursorTop;
+		Thread catchInputThread = new Thread(new ThreadStart(this.CatchInput));
+		catchInputThread.Start ();
+	}
+
+	private void CatchInput ()
+	{
+		while (true) {
+			ConsoleKeyInfo key = Console.ReadKey (false);
+			lock (TerminalLock) {
+				if (!AcceptInput)
+				{
+					Console.CursorLeft--;
+					Console.Write(" ");
+					Console.CursorLeft--;
+					continue;
+				}
+				if (key.Key == ConsoleKey.Backspace)
+				{
+					if (InputBuffer.Length == 0)
+						continue;
+					InputBuffer = InputBuffer.Substring(0, InputBuffer.Length - 1);
+					ClearInputLine ();
+					Console.Write (InputBuffer);
+				}
+				else if (key.Key == ConsoleKey.Enter)
+				{
+					AcceptInput = false;
+					ResetEvent.Set ();
+					OutLinePos = Console.CursorTop;
+				}
+				else
+				{
+					InputBuffer += key.KeyChar;
+					ClearInputLine ();
+					Console.Write (InputBuffer);
+				}
+			}
+		}
+	}
+
+	public void PrintLine (String s)
+	{
+		lock (TerminalLock) {
+			ClearInputLine();
+			Console.WriteLine (s);
+			OutLinePos = Console.CursorTop;
+			Console.Write (InputBuffer);
+		}
+	}
+
+	public String ReadLine ()
+	{
+		lock (ReadLineLock) {
+			String result;
+			AcceptInput = true;
+			ResetEvent.WaitOne();
+			result = InputBuffer;
+			InputBuffer = "";
+			return result;
+		}
+	}
+
+	public void ClearInputLine ()
+	{
+		lock (TerminalLock) {
+			int top = Console.CursorTop;
+			int left = Console.CursorLeft;
+			Console.SetCursorPosition (0, OutLinePos);
+			while (left != Console.CursorLeft || top != Console.CursorTop) {
+				Console.Write (" ");
+			}
+			Console.SetCursorPosition (0, OutLinePos);
+		}
+	}
+}
+