Tunez.UdpBroadcast.BeginListeningAsync C# (CSharp) Méthode

		public async Task BeginListeningAsync (CancellationToken token)
		{
			var client = new UdpClient (BroadcastEndpoint);
			client.JoinMulticastGroup (BroadcastEndpoint.Address);
			token.Register (() => client.Close ());

			while (true) {
				token.ThrowIfCancellationRequested ();
				try {
					var result = await client.ReceiveAsync ();
					var data = Encoding.UTF8.GetString (result.Buffer);
					if (data.StartsWith (Header, StringComparison.Ordinal)) {
						if (ServerFound != null) {
							var details = new ServerDetails {
								Hostname = result.RemoteEndPoint.Address.ToString (),
								Port = int.Parse (data.Substring (Header.Length))
							};
							LoggingService.LogInfo ("Found TunezServer at {0}", details.FullAddress);
							ServerFound (this, details);
						}
					}
				} catch (ObjectDisposedException) {
					token.ThrowIfCancellationRequested ();
					throw;
				} catch (SocketException) {
					token.ThrowIfCancellationRequested ();
					// Ignore this
				} catch (Exception ex) {
					token.ThrowIfCancellationRequested ();
					LoggingService.LogInfo ("Ignoring bad UDP {0}", ex);
				}
			}
		}
	}

		public async Task Listen_CancelBefore ()
		{
			var cts = new CancellationTokenSource();
			var announcer = new UdpBroadcast();
			cts.Cancel();
			var task = announcer.BeginListeningAsync(cts.Token);
			await Asserts.IsCancelled(task);
		}