Accelerated C# 2008

Using a callback to handle the completion of a work item is very handy when creating a server

process that will handle incoming requests. For example, suppose you have a process that listens on

a specific TCP/IP port for an incoming request. When it receives one, it replies with the requested

information. To achieve high utilization, you definitely want to pend these operations asynchro-

nously. Consider the following example that listens on port 1234 and when it receives anything at

all, it simply replies with “Hello World!”:

using System;

using System.Text;

using System.Threading;

using System.Net;

using System.Net.Sockets;

public class EntryPoint {

private const int CONNECT_QUEUE_LENGTH = 4;

private const int LISTEN_PORT = 1234;

static void ListenForRequests() ...