Esempio n. 1
0
        private byte[] Read()
        {
            var            header     = new MqttFixedHeader();
            var            headerByte = new byte[1];
            int            receivedSize;
            INetworkStream stream = GetStream();

            // Read the fixed header
            do
            {
                receivedSize = stream.Receive(headerByte, 0, 1);
            } while (receivedSize > 0 && header.AppendByte(headerByte[0]));

            if (!header.IsComplete)
            {
                _logger.LogMessage("Socket", LogLevel.Error, "Header data invalid for incoming message.");
                throw new IOException("Unable to receive the MQTT fixed header.");
            }

            _logger.LogMessage("Socket", LogLevel.Verbose, "Begin reading payload for incoming message type: " + header.MessageType);

            // Create a buffer and read the remaining message
            var completeBuffer = header.CreateMessageBuffer();

            receivedSize = 0;
            while (receivedSize < header.RemainingLength)
            {
                receivedSize += stream.Receive(completeBuffer, header.HeaderSize + receivedSize, header.RemainingLength - receivedSize);
            }

            return(completeBuffer);
        }