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Refactor keep alive message handling in order to fix issues with sudden disconnects.

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This commit is contained in:
Christian
2021-02-23 11:45:22 +01:00
parent 2d4ea8ee9b
commit b766c1bebb
7 changed files with 129 additions and 102 deletions
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Source/MQTTnet/Server/MqttClientConnection.cs
+9 -2
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@@ -212,6 +212,10 @@ namespace MQTTnet.Server
{
await SendAsync(MqttPingRespPacket.Instance, cancellationToken).ConfigureAwait(false);
}
else if (packet is MqttPingRespPacket)
{
throw new MqttProtocolViolationException("A PINGRESP Packet is sent by the Server to the Client in response to a PINGREQ Packet only.");
}
else if (packet is MqttDisconnectPacket)
{
Session.WillMessage = null;
@@ -222,7 +226,10 @@ namespace MQTTnet.Server
}
else
{
_packetDispatcher.Dispatch(packet);
if (!_packetDispatcher.TryDispatch(packet))
{
throw new MqttProtocolViolationException($"Received packet '{packet}' at an unexpected time.");
}
}
}
}
@@ -255,7 +262,7 @@ namespace MQTTnet.Server
Session.WillMessage = null;
}
_packetDispatcher.Cancel();
_packetDispatcher.CancelAll();
_logger.Info("Client '{0}': Connection stopped.", ClientId);