Пример #1
0
        private void ReadAsyncTcpMessage(object data)
        {
            // This method is called by a new thread to asynchronously
            // read the response to a request

            // The stack was provided as state data in QueueUserWorkItem
            IClientChannelSinkStack stack = (IClientChannelSinkStack)data;

            // The first sink in the stack is this sink. Pop it and
            // get the status data, which is the TcpConnection used to send
            // the request
            TcpConnection connection = (TcpConnection)stack.Pop(this);

            try
            {
                ITransportHeaders responseHeaders;

                // Read the response, blocking if necessary
                MessageStatus status = TcpMessageIO.ReceiveMessageStatus(connection.Stream, connection.Buffer);

                if (status != MessageStatus.MethodMessage)
                {
                    throw new RemotingException("Unknown response message from server");
                }

                Stream responseStream = TcpMessageIO.ReceiveMessageStream(connection.Stream, out responseHeaders, connection.Buffer);

                // Free the connection, so it can be reused
                connection.Release();
                connection = null;

                // Ok, proceed with the other sinks
                stack.AsyncProcessResponse(responseHeaders, responseStream);
            }
            catch
            {
                if (connection != null)
                {
                    connection.Release();
                }
                throw;
            }
        }
Пример #2
0
        public void ProcessMessages()
        {
            byte[]        buffer = new byte[256];
            NetworkStream ns     = new NetworkStream(_socket);

            _stream = new BufferedStream(ns);

            try
            {
                bool end = false;
                while (!end)
                {
                    MessageStatus type = TcpMessageIO.ReceiveMessageStatus(_stream, buffer);

                    switch (type)
                    {
                    case MessageStatus.MethodMessage:
                        _sink.InternalProcessMessage(this);
                        break;

                    case MessageStatus.Unknown:
                    case MessageStatus.CancelSignal:
                        end = true;
                        break;
                    }
                    _stream.Flush();
                }
            }
            catch (Exception ex)
            {
#if DEBUG
                Console.WriteLine("The exception was caught during TcpServerChannel.ProcessMessages: {0}, {1}", ex.GetType(), ex.Message);
#endif
            }
            finally
            {
                try {
                    _stream.Close();
                    _socket.Close();
                }
                catch { }
            }
        }
Пример #3
0
        public void ProcessMessage(IMessage msg,
                                   ITransportHeaders requestHeaders,
                                   Stream requestStream,
                                   out ITransportHeaders responseHeaders,
                                   out Stream responseStream)
        {
            TcpConnection connection = null;

            try
            {
                if (requestHeaders == null)
                {
                    requestHeaders = new TransportHeaders();
                }
                requestHeaders [CommonTransportKeys.RequestUri] = ((IMethodMessage)msg).Uri;

                // Sends the message
                connection = TcpConnectionPool.GetConnection(_host, _port);
                TcpMessageIO.SendMessageStream(connection.Stream, requestStream, requestHeaders, connection.Buffer);
                connection.Stream.Flush();

                // Reads the response
                MessageStatus status = TcpMessageIO.ReceiveMessageStatus(connection.Stream, connection.Buffer);

                if (status != MessageStatus.MethodMessage)
                {
                    throw new RemotingException("Unknown response message from server");
                }

                responseStream = TcpMessageIO.ReceiveMessageStream(connection.Stream, out responseHeaders, connection.Buffer);
            }
            finally
            {
                if (connection != null)
                {
                    connection.Release();
                }
            }
        }