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     mojo::InterfacePtr<serial::DataSourceClient> source_client,
  20     mojo::InterfaceRequest<serial::Connection> request)
  21     : io_handler_(io_handler), binding_(this, request.Pass()) {
  22   receiver_ = new DataSinkReceiver(
  23       sink.Pass(),
  24       base::Bind(&SerialConnection::OnSendPipeReady, base::Unretained(this)),
  25       base::Bind(&SerialConnection::OnSendCancelled, base::Unretained(this)),
  26       base::Bind(base::DoNothing));
  27   sender_ = new DataSourceSender(
  28       source.Pass(), source_client.Pass(),
  29       base::Bind(&SerialConnection::OnReceivePipeReady, base::Unretained(this)),
  30       base::Bind(base::DoNothing));
  31 }
  32
  33 SerialConnection::~SerialConnection() {
  34   receiver_->ShutDown();
  35   sender_->ShutDown();
  36   io_handler_->CancelRead(serial::RECEIVE_ERROR_DISCONNECTED);
  37   io_handler_->CancelWrite(serial::SEND_ERROR_DISCONNECTED);
  38 }
  39
  40 void SerialConnection::GetInfo(
  41     const mojo::Callback<void(serial::ConnectionInfoPtr)>& callback) {
  42   callback.Run(io_handler_->GetPortInfo());
  43 }
  44
  45 void SerialConnection::SetOptions(serial::ConnectionOptionsPtr options,
  46                                   const mojo::Callback<void(bool)>& callback) {
  47   callback.Run(io_handler_->ConfigurePort(*options));
  48   io_handler_->CancelRead(device::serial::RECEIVE_ERROR_NONE);
  49 }
  50
  51 void SerialConnection::SetControlSignals(
  52     serial::HostControlSignalsPtr signals,
  53     const mojo::Callback<void(bool)>& callback) {
  54   callback.Run(io_handler_->SetControlSignals(*signals));
  55 }
  56
  57 void SerialConnection::GetControlSignals(
  58     const mojo::Callback<void(serial::DeviceControlSignalsPtr)>& callback) {
  59   callback.Run(io_handler_->GetControlSignals());
  60 }
  61
  62 void SerialConnection::Flush(const mojo::Callback<void(bool)>& callback) {
  63   callback.Run(io_handler_->Flush());
  64 }
  65
  66 void SerialConnection::OnSendCancelled(int32_t error) {
  67   io_handler_->CancelWrite(static_cast<serial::SendError>(error));
  68 }
  69
  70 void SerialConnection::OnSendPipeReady(scoped_ptr<ReadOnlyBuffer> buffer) {
  71   io_handler_->Write(buffer.Pass());
  72 }
  73
  74 void SerialConnection::OnReceivePipeReady(scoped_ptr<WritableBuffer> buffer) {
  75   io_handler_->Read(buffer.Pass());
  76 }
  77
  78 }  // namespace device