41 lines
1.3 KiB
C#
41 lines
1.3 KiB
C#
using System.Net;
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using System.Net.Sockets;
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using System.Text;
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_ = Task.Run(ClientWorker);
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_ = Task.Run(ServerWorker);
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await Task.Delay(-1); // keep app open
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return;
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static async Task ClientWorker()
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{
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using var client = new Socket(SocketType.Dgram, ProtocolType.Udp);
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EndPoint endpoint = new IPEndPoint(IPAddress.Loopback, 1234);
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var message = new byte[11];
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Encoding.ASCII.GetBytes("Hello World", message);
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Console.WriteLine("[CLIENT] Sending message to server");
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await client.SendToAsync(message, SocketFlags.None, endpoint);
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Console.WriteLine("[CLIENT] Waiting for response");
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message = new byte[11];
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await client.ReceiveFromAsync(message, SocketFlags.None, endpoint);
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Console.WriteLine($"[CLIENT] Received response: \"{Encoding.ASCII.GetString(message)}\"");
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}
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static async Task ServerWorker()
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{
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using var server = new Socket(SocketType.Dgram, ProtocolType.Udp);
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EndPoint endpoint = new IPEndPoint(IPAddress.Any, 1234);
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server.Bind(endpoint);
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var buffer = new byte[11];
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SocketReceiveMessageFromResult result = await server.ReceiveMessageFromAsync(buffer, SocketFlags.None, endpoint);
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Console.WriteLine($"[SERVER] Server received \"{Encoding.ASCII.GetString(buffer)}\". Sending the same message back");
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await server.SendToAsync(buffer, SocketFlags.None, result.RemoteEndPoint);
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}
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