?? ??? TCP/IP ?? ?? ??

?? ??? ??? ?? ??? TCP/IP ??? ??? ? ???? ? ??? ??? ????. ?? ???? ???? ????. ??? ??? ??? ???? ???? ?? ?? ?????? ??? ??? ? ?? ?? ??? ???? ?? ?????.

???? ????

• ?? :

  • ??? ???? ?? ?? ??? ???? ???? ?????.
  • BeginReceive ? EndReceive ???? ???? ??? ??? ?????.
  • ?? ?????? ?? ??? ???? ??? ???? ????? ??? ???? ???? ????.
  • ???? ??? ???? ??? ???? AcceptCallback? ???? ?? ??? BeginAccept ???

• ?????:

  • ??? ???? ??? ?????.
  • ??? BeginSend? ???? ?????? ??? ?? ???? ???? BeginReceive.

??? ??

• ???? ?? ???? ?????? ??? ??????? ?? ??? ????. .
• ??? ????? ?? ????
• ???????? ??? ???? ????? ?????? ??? ? ???? ??? ?? ??? ???? ?? ??? ??? ???? ?? ??? ? ????.

?? ??

using System;
using System.Net;
using System.Net.Sockets;

namespace TcpServer
{
    class xConnection
    {
        public byte[] buffer;
        public System.Net.Sockets.Socket socket;
    }

    class Server
    {
        private List<xConnection> _sockets;
        private System.Net.Sockets.Socket _serverSocket;
        private int _port;
        private int _backlog;

        public bool Start()
        {
            IPHostEntry localhost = Dns.GetHostEntry(Dns.GetHostName());
            IPEndPoint serverEndPoint = new IPEndPoint(localhost.AddressList[0], _port);

            try
            {
                _serverSocket = new Socket(serverEndPoint.Address.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
                _serverSocket.Bind(serverEndPoint);
                _serverSocket.Listen(_backlog);
                _serverSocket.BeginAccept(new AsyncCallback(AcceptCallback), _serverSocket);
                return true;
            }
            catch (Exception e)
            {
                // Handle exceptions appropriately
                return false;
            }
        }

        private void AcceptCallback(IAsyncResult result)
        {
            try
            {
                Socket serverSocket = (Socket)result.AsyncState;
                xConnection conn = new xConnection();
                conn.socket = serverSocket.EndAccept(result);
                conn.buffer = new byte[_bufferSize];

                lock (_sockets)
                {
                    _sockets.Add(conn);
                }
                conn.socket.BeginReceive(conn.buffer, 0, conn.buffer.Length, SocketFlags.None, new AsyncCallback(ReceiveCallback), conn);
                _serverSocket.BeginAccept(new AsyncCallback(AcceptCallback), _serverSocket);
            }
            catch (Exception e)
            {
                // Handle exceptions appropriately
            }
        }

        private void Send(byte[] message, xConnection conn)
        {
            if (conn != null &amp;&amp; conn.socket.Connected)
            {
                lock (conn.socket)
                {
                    conn.socket.Send(message, message.Length, SocketFlags.None);
                }
            }
        }
    }
}

?? ?? ??

• ?? ??? ??? ???? ?? ????? ???? ??? ?????.
• ???? ??? ????? ???? ?? BeginAccept? ?????.
• ??? ??? ??? ???? ?? ????? ??? ?? ?? ???? ??????.

? ??? ?? ??? ??? ?? ??? TCP/IP ??? ???? ??? ??????? ?? ?????. ??? ??? PHP ??? ????? ?? ?? ??? ?????!