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61 lines
1.6 KiB
61 lines
1.6 KiB
using System.Net;
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using System.Net.Sockets;
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using System.Text;
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namespace Server;
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internal class Server
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{
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private static readonly int BUFFER_SIZE = 256;
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static void Main(string[] args)
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{
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Socket serverSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
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IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse("127.0.0.1"), 20000);
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serverSocket.Bind(endPoint);
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serverSocket.Listen(1000);
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serverSocket.BeginAccept(AcceptCompleted, serverSocket);
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while (true)
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{
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Thread.Sleep(1000);
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}
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}
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private static void AcceptCompleted(IAsyncResult ar)
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{
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if (ar.AsyncState == null)
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return;
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Socket serverSocket = (Socket)ar.AsyncState;
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Socket clientSocket = serverSocket.EndAccept(ar);
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Console.WriteLine(clientSocket.RemoteEndPoint);
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serverSocket.BeginAccept(AcceptCompleted, serverSocket);
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byte[] buffer = new byte[BUFFER_SIZE];
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clientSocket.BeginReceive(buffer, 0, buffer.Length, SocketFlags.None, ReceiveCompleted, (clientSocket, buffer)); // state: tuple
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}
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private static void ReceiveCompleted(IAsyncResult ar)
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{
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if (ar.AsyncState == null)
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return;
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(Socket clientSocket, byte[] buffer) = ((Socket, byte[]))ar.AsyncState;
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int n1 = clientSocket.EndReceive(ar);
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if (n1 < 1)
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{
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Console.WriteLine("Client is disconnected");
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clientSocket.Dispose();
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return;
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}
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Console.WriteLine(Encoding.UTF8.GetString(buffer));
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byte[] newBuffer = new byte[BUFFER_SIZE];
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clientSocket.BeginReceive(newBuffer, 0, newBuffer.Length, SocketFlags.None, ReceiveCompleted, (clientSocket, newBuffer)); // state: tuple
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}
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} |