private async Task ProcessReceivedPubRelPacket(MqttPubRelPacket pubRelPacket)
{
lock (_unacknowledgedPublishPackets)
{
_unacknowledgedPublishPackets.Remove(pubRelPacket.PacketIdentifier);
}
await SendAsync(pubRelPacket.CreateResponse <MqttPubCompPacket>());
}
private Task ProcessReceivedPubRelPacket(MqttPubRelPacket pubRelPacket)
{
return(SendAsync(pubRelPacket.CreateResponse <MqttPubCompPacket>()));
}