device/serial/serial_connection.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "device/serial/serial_connection.h"
   6
   7 #include "base/bind.h"
   8 #include "device/serial/buffer.h"
   9 #include "device/serial/data_sink_receiver.h"
  10 #include "device/serial/data_source_sender.h"
  11 #include "device/serial/serial_io_handler.h"
  12
  13 namespace device {
  14
  15 SerialConnection::SerialConnection(
  16     scoped_refptr<SerialIoHandler> io_handler,
  17     mojo::InterfaceRequest<serial::DataSink> sink,
  18     mojo::InterfaceRequest<serial::DataSource> source)
  19     : io_handler_(io_handler) {
  20   receiver_ = mojo::WeakBindToRequest(
  21       new DataSinkReceiver(base::Bind(&SerialConnection::OnSendPipeReady,
  22                                       base::Unretained(this)),
  23                            base::Bind(&SerialConnection::OnSendCancelled,
  24                                       base::Unretained(this)),
  25                            base::Bind(base::DoNothing)),
  26       &sink);
  27   sender_ = mojo::WeakBindToRequest(
  28       new DataSourceSender(base::Bind(&SerialConnection::OnReceivePipeReady,
  29                                       base::Unretained(this)),
  30                            base::Bind(base::DoNothing)),
  31       &source);
  32 }
  33
  34 SerialConnection::~SerialConnection() {
  35   receiver_->ShutDown();
  36   sender_->ShutDown();
  37   io_handler_->CancelRead(serial::RECEIVE_ERROR_DISCONNECTED);
  38   io_handler_->CancelWrite(serial::SEND_ERROR_DISCONNECTED);
  39 }
  40
  41 void SerialConnection::GetInfo(
  42     const mojo::Callback<void(serial::ConnectionInfoPtr)>& callback) {
  43   callback.Run(io_handler_->GetPortInfo());
  44 }
  45
  46 void SerialConnection::SetOptions(serial::ConnectionOptionsPtr options,
  47                                   const mojo::Callback<void(bool)>& callback) {
  48   callback.Run(io_handler_->ConfigurePort(*options));
  49   io_handler_->CancelRead(device::serial::RECEIVE_ERROR_NONE);
  50 }
  51
  52 void SerialConnection::SetControlSignals(
  53     serial::HostControlSignalsPtr signals,
  54     const mojo::Callback<void(bool)>& callback) {
  55   callback.Run(io_handler_->SetControlSignals(*signals));
  56 }
  57
  58 void SerialConnection::GetControlSignals(
  59     const mojo::Callback<void(serial::DeviceControlSignalsPtr)>& callback) {
  60   callback.Run(io_handler_->GetControlSignals());
  61 }
  62
  63 void SerialConnection::Flush(const mojo::Callback<void(bool)>& callback) {
  64   callback.Run(io_handler_->Flush());
  65 }
  66
  67 void SerialConnection::OnSendCancelled(int32_t error) {
  68   io_handler_->CancelWrite(static_cast<serial::SendError>(error));
  69 }
  70
  71 void SerialConnection::OnSendPipeReady(scoped_ptr<ReadOnlyBuffer> buffer) {
  72   io_handler_->Write(buffer.Pass());
  73 }
  74
  75 void SerialConnection::OnReceivePipeReady(scoped_ptr<WritableBuffer> buffer) {
  76   io_handler_->Read(buffer.Pass());
  77 }
  78
  79 }  // namespace device