static async Task RunWebSocketServer()
{
HttpListenerContext context = await listener.GetContextAsync();
if (!context.Request.IsWebSocketRequest)
{
context.Response.StatusCode = (int)HttpStatusCode.BadRequest;
context.Response.Close();
}
HttpListenerWebSocketContext webSocketContext = await context.AcceptWebSocketAsync(WebSocketConstants.SubProtocols.Mqtt, 8 * 1024, TimeSpan.FromMinutes(5));
serverListener = new ReadListeningHandler();
serverWebSocketChannel = new ServerWebSocketChannel(null, webSocketContext.WebSocket, context.Request.RemoteEndPoint);
serverWebSocketChannel
.Option(ChannelOption.Allocator, UnpooledByteBufferAllocator.Default)
.Option(ChannelOption.AutoRead, true)
.Option(ChannelOption.RcvbufAllocator, new AdaptiveRecvByteBufAllocator())
.Option(ChannelOption.MessageSizeEstimator, DefaultMessageSizeEstimator.Default);
serverWebSocketChannel.Pipeline.AddLast("server logger", new LoggingHandler("SERVER"));
serverWebSocketChannel.Pipeline.AddLast(
MqttEncoder.Instance,
new MqttDecoder(true, 256 * 1024),
serverListener);
var workerGroup = new MultithreadEventLoopGroup();
await workerGroup.GetNext().RegisterAsync(serverWebSocketChannel);
while (true)
{
if (done)
{
break;
}
await Task.Delay(TimeSpan.FromSeconds(2));
}
}
public async Task MqttWebSocketClientAndServerScenario()
{
var websocket = new ClientWebSocket();
websocket.Options.AddSubProtocol(WebSocketConstants.SubProtocols.Mqtt);
Uri uri = new Uri("ws://" + IotHubName + ":" + Port + WebSocketConstants.UriSuffix);
await websocket.ConnectAsync(uri, CancellationToken.None);
var clientReadListener = new ReadListeningHandler();
var clientChannel = new ClientWebSocketChannel(null, websocket);
clientChannel
.Option(ChannelOption.Allocator, UnpooledByteBufferAllocator.Default)
.Option(ChannelOption.AutoRead, true)
.Option(ChannelOption.RcvbufAllocator, new AdaptiveRecvByteBufAllocator())
.Option(ChannelOption.MessageSizeEstimator, DefaultMessageSizeEstimator.Default);
clientChannel.Pipeline.AddLast(
MqttEncoder.Instance,
new MqttDecoder(false, 256 * 1024),
clientReadListener);
var clientWorkerGroup = new MultithreadEventLoopGroup();
await clientWorkerGroup.GetNext().RegisterAsync(clientChannel);
await Task.WhenAll(RunMqttClientScenarioAsync(clientChannel, clientReadListener), RunMqttServerScenarioAsync(serverWebSocketChannel, serverListener));
done = true;
}