77 lines
2.4 KiB
C#
77 lines
2.4 KiB
C#
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using System;
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using Windows.Networking.Sockets;
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namespace Plane.Communication
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{
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public partial class UdpServerConnectionManager
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{
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private DatagramSocket _socket;
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private UdpServerConnectionManager()
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{
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_socket = new DatagramSocket();
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var temp = _socket.BindServiceNameAsync("5250");
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}
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public void StartReceiving()
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{
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if (_disposed)
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{
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throw new ObjectDisposedException(nameof(UdpServerConnectionManager));
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}
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if (_shouldReceive && _isReceiving)
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{
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return;
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}
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_shouldReceive = true;
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_isReceiving = true;
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_socket.MessageReceived += _socket_MessageReceived;
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}
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public void StopReceiving()
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{
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if (_shouldReceive)
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{
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_shouldReceive = false;
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_socket.MessageReceived -= _socket_MessageReceived;
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_isReceiving = false;
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}
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}
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private async void _socket_MessageReceived(DatagramSocket sender, DatagramSocketMessageReceivedEventArgs args)
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{
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try
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{
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var reader = args.GetDataReader();
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var data = new byte[reader.UnconsumedBufferLength];
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reader.ReadBytes(data);
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var remoteAddress = args.RemoteAddress.CanonicalName;
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if (!_connections.ContainsKey(remoteAddress))
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{
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var connection = new UdpServerConnection(await _socket.GetOutputStreamAsync(args.RemoteAddress, args.RemotePort));
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_connections.Add(remoteAddress, connection);
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RaiseConnectionEstablished(connection, remoteAddress);
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}
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else
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{
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var connection = _connections[remoteAddress];
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if (connection.NeedNewOutputStream)
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{
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connection.SetOutputStream(await _socket.GetOutputStreamAsync(args.RemoteAddress, args.RemotePort));
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}
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}
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_connections[remoteAddress].EnqueueDatagram(data);
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}
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catch (Exception ex)
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{
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System.Diagnostics.Debug.WriteLine(ex);
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}
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}
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private void DisposeCore()
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{
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_socket.Dispose();
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}
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}
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}
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