Opc.Ua.Bindings.TcpMessageSocket.ReadNextMessage C# (CSharp) Method

        public void ReadNextMessage()
        {
            lock (m_readLock)
            {              
                // allocate a buffer large enough to a message chunk.
                if (m_receiveBuffer == null)
                {
                    m_receiveBuffer = m_bufferManager.TakeBuffer(m_receiveBufferSize, "ReadNextMessage");
                }
                
                // read the first 8 bytes of the message which contains the message size.          
                m_bytesReceived = 0;
                m_bytesToReceive = TcpMessageLimits.MessageTypeAndSize;
                m_incomingMessageSize = -1;

                ReadNextBlock();
            }
        }

        /// <summary>
        /// Attaches the channel to an existing socket.
        /// </summary>
        public void Attach(uint channelId, Socket socket)
        {
            if (socket == null)
            {
                throw new ArgumentNullException(nameof(socket));
            }

            lock (DataLock)
            {
                // check for existing socket.
                if (Socket != null)
                {
                    throw new InvalidOperationException("Channel is already attached to a socket.");
                }

                ChannelId = channelId;
                State     = TcpChannelState.Connecting;

                Socket = new TcpMessageSocket(this, socket, BufferManager, Quotas.MaxBufferSize);
                Utils.Trace("{0} SOCKET ATTACHED: {1:X8}, ChannelId={2}", ChannelName, Socket.Handle, ChannelId);
                Socket.ReadNextMessage();

                // automatically clean up the channel if no hello received.
                StartCleanupTimer(StatusCodes.BadTimeout);
            }
        }