device/serial/serial_connection.h

   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 #ifndef DEVICE_SERIAL_SERIAL_CONNECTION_H_
   6 #define DEVICE_SERIAL_SERIAL_CONNECTION_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "device/serial/serial.mojom.h"
  11 #include "third_party/mojo/src/mojo/public/cpp/bindings/strong_binding.h"
  12
  13 namespace device {
  14
  15 class DataSinkReceiver;
  16 class DataSourceSender;
  17 class ReadOnlyBuffer;
  18 class SerialIoHandler;
  19 class WritableBuffer;
  20
  21 class SerialConnection : public serial::Connection {
  22  public:
  23   SerialConnection(scoped_refptr<SerialIoHandler> io_handler,
  24                    mojo::InterfaceRequest<serial::DataSink> sink,
  25                    mojo::InterfaceRequest<serial::DataSource> source,
  26                    mojo::InterfacePtr<serial::DataSourceClient> source_client,
  27                    mojo::InterfaceRequest<serial::Connection> request);
  28   ~SerialConnection() override;
  29
  30   // serial::Connection overrides.
  31   void GetInfo(
  32       const mojo::Callback<void(serial::ConnectionInfoPtr)>& callback) override;
  33   void SetOptions(serial::ConnectionOptionsPtr options,
  34                   const mojo::Callback<void(bool)>& callback) override;
  35   void SetControlSignals(serial::HostControlSignalsPtr signals,
  36                          const mojo::Callback<void(bool)>& callback) override;
  37   void GetControlSignals(
  38       const mojo::Callback<void(serial::DeviceControlSignalsPtr)>& callback)
  39       override;
  40   void Flush(const mojo::Callback<void(bool)>& callback) override;
  41
  42  private:
  43   void OnSendPipeReady(scoped_ptr<ReadOnlyBuffer> buffer);
  44   void OnSendCancelled(int32_t error);
  45   void OnReceivePipeReady(scoped_ptr<WritableBuffer> buffer);
  46
  47   scoped_refptr<SerialIoHandler> io_handler_;
  48   scoped_refptr<DataSinkReceiver> receiver_;
  49   scoped_refptr<DataSourceSender> sender_;
  50
  51   mojo::StrongBinding<serial::Connection> binding_;
  52
  53   DISALLOW_COPY_AND_ASSIGN(SerialConnection);
  54 };
  55
  56 }  // namespace device
  57
  58 #endif  // DEVICE_SERIAL_SERIAL_CONNECTION_H_