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tcp.cs
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tcp.cs
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using System;
using System.Text;
using System.Threading;
using System.Net;
using System.Net.Sockets;
public class EchoServer {
public static int Port = 8080;
static void Main() {
var server = new EchoServer();
new Thread(server.Start).Start();
var client = new Client { Message = "hello world" };
new Thread(client.Start).Start();
var client2 = new Client { Message = "foo bar" };
new Thread(client2.Start).Start();
}
public void Start() {
var server = TcpListener.Create(Port);
server.Start();
while (true) {
var i = 0;
string data = null;
var bytes = new byte[256];
var client = server.AcceptTcpClient();
var stream = client.GetStream();
while((i = stream.Read(bytes, 0, bytes.Length)) != 0)
{
data = Encoding.ASCII.GetString(bytes, 0, i);
data = data.ToUpper();
var msg = Encoding.ASCII.GetBytes(data);
stream.Write(msg, 0, msg.Length);
}
}
}
}
public class Client {
public string Message { get; set; }
public void Start() {
var client = new TcpClient("localhost", EchoServer.Port);
var data = Encoding.ASCII.GetBytes(Message);
var stream = client.GetStream();
stream.Write(data, 0, data.Length);
data = new byte[256];
String responseData = String.Empty;
var bytes = stream.Read(data, 0, data.Length);
responseData = Encoding.ASCII.GetString(data, 0, bytes);
Console.WriteLine("Echo: {0}", responseData);
client.Close();
}
}