device/bluetooth/bluetooth_socket_chromeos.h

   1 // Copyright 2013 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_BLUETOOTH_BLUETOOTH_SOCKET_CHROMEOS_H_
   6 #define DEVICE_BLUETOOTH_BLUETOOTH_SOCKET_CHROMEOS_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11 #include "base/memory/ref_counted.h"
  12 #include "chromeos/chromeos_export.h"
  13 #include "device/bluetooth/bluetooth_socket.h"
  14
  15 namespace dbus {
  16
  17 class FileDescriptor;
  18
  19 }  // namespace dbus
  20
  21 namespace net {
  22
  23 class DrainableIOBuffer;
  24 class GrowableIOBuffer;
  25
  26 }  // namespace net
  27
  28 namespace chromeos {
  29
  30 // The BluetoothSocketChromeOS class implements BluetoothSocket for the
  31 // Chrome OS platform.
  32 class CHROMEOS_EXPORT BluetoothSocketChromeOS
  33     : public device::BluetoothSocket {
  34  public:
  35   // BluetoothSocket override.
  36   virtual bool Receive(net::GrowableIOBuffer* buffer) OVERRIDE;
  37   virtual bool Send(net::DrainableIOBuffer* buffer) OVERRIDE;
  38   virtual std::string GetLastErrorMessage() const OVERRIDE;
  39
  40   // Create an instance of a BluetoothSocket from the passed file descriptor
  41   // received over D-Bus in |fd|, the descriptor will be taken from that object
  42   // and ownership passed to the returned object.
  43   static scoped_refptr<device::BluetoothSocket> Create(
  44       dbus::FileDescriptor* fd);
  45
  46  protected:
  47   virtual ~BluetoothSocketChromeOS();
  48
  49  private:
  50   BluetoothSocketChromeOS(int fd);
  51
  52   // The different socket types have different reading patterns; l2cap sockets
  53   // have to be read with boundaries between datagrams preserved while rfcomm
  54   // sockets do not.
  55   enum SocketType {
  56     L2CAP,
  57     RFCOMM
  58   };
  59
  60   // File descriptor and socket type of the socket.
  61   const int fd_;
  62   SocketType socket_type_;
  63
  64   // Last error message, set during Receive() and Send() and retrieved using
  65   // GetLastErrorMessage().
  66   std::string error_message_;
  67
  68   DISALLOW_COPY_AND_ASSIGN(BluetoothSocketChromeOS);
  69 };
  70
  71 }  // namespace chromeos
  72
  73 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_SOCKET_CHROMEOS_H_