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