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Use event pattern correctly for incoming server connections.

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This commit is contained in:
Christian Kratky
2017-10-17 20:05:04 +02:00
parent ad4585989a
commit 9915cc4492
10 changed files with 44 additions and 34 deletions
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Frameworks/MQTTnet.NetStandard/Implementations/MqttServerAdapter.cs
+11 -11
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@@ -20,15 +20,11 @@ namespace MQTTnet.Implementations
private Socket _tlsEndpointSocket;
private X509Certificate2 _tlsCertificate;
private bool _isRunning;
public event Action<IMqttCommunicationAdapter> ClientAccepted;
public event EventHandler<MqttServerAdapterClientAcceptedEventArgs> ClientAccepted;
public Task StartAsync(MqttServerOptions options)
{
if (_isRunning) throw new InvalidOperationException("Server is already started.");
_isRunning = true;
if (_cancellationTokenSource != null) throw new InvalidOperationException("Server is already started.");
_cancellationTokenSource = new CancellationTokenSource();
@@ -49,6 +45,10 @@ namespace MQTTnet.Implementations
}
_tlsCertificate = new X509Certificate2(options.TlsEndpointOptions.Certificate);
if (!_tlsCertificate.HasPrivateKey)
{
throw new InvalidOperationException("The certificate for TLS encryption must contain the private key.");
}
_tlsEndpointSocket = new Socket(SocketType.Stream, ProtocolType.Tcp);
_tlsEndpointSocket.Bind(new IPEndPoint(IPAddress.Any, options.GetTlsEndpointPort()));
@@ -62,8 +62,6 @@ namespace MQTTnet.Implementations
public Task StopAsync()
{
_isRunning = false;
_cancellationTokenSource?.Cancel(false);
_cancellationTokenSource?.Dispose();
_cancellationTokenSource = null;
@@ -71,6 +69,8 @@ namespace MQTTnet.Implementations
_defaultEndpointSocket?.Dispose();
_defaultEndpointSocket = null;
_tlsCertificate = null;
_tlsEndpointSocket?.Dispose();
_tlsEndpointSocket = null;
@@ -88,14 +88,14 @@ namespace MQTTnet.Implementations
{
try
{
//todo: else branch can be used with min dependency NET46
//todo: else branch can be used with min dependency NET46
#if NET45
var clientSocket = await Task.Factory.FromAsync(_defaultEndpointSocket.BeginAccept, _defaultEndpointSocket.EndAccept, null).ConfigureAwait(false);
#else
var clientSocket = await _defaultEndpointSocket.AcceptAsync().ConfigureAwait(false);
#endif
var clientAdapter = new MqttChannelCommunicationAdapter(new MqttTcpChannel(clientSocket, null), new MqttPacketSerializer());
ClientAccepted?.Invoke(clientAdapter);
ClientAccepted?.Invoke(this, new MqttServerAdapterClientAcceptedEventArgs(clientAdapter));
}
catch (Exception exception)
{
@@ -123,7 +123,7 @@ namespace MQTTnet.Implementations
await sslStream.AuthenticateAsServerAsync(_tlsCertificate, false, SslProtocols.Tls12, false).ConfigureAwait(false);
var clientAdapter = new MqttChannelCommunicationAdapter(new MqttTcpChannel(clientSocket, sslStream), new MqttPacketSerializer());
ClientAccepted?.Invoke(clientAdapter);
ClientAccepted?.Invoke(this, new MqttServerAdapterClientAcceptedEventArgs(clientAdapter));
}
catch (Exception exception)
{