device/hid/hid_connection_win.h

   1 // Copyright (c) 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_HID_HID_CONNECTION_WIN_H_
   6 #define DEVICE_HID_HID_CONNECTION_WIN_H_
   7
   8 #include <windows.h>
   9
  10 #include <set>
  11
  12 #include "base/callback.h"
  13 #include "base/memory/ref_counted.h"
  14 #include "base/message_loop/message_loop.h"
  15 #include "base/threading/thread_checker.h"
  16 #include "device/hid/hid_connection.h"
  17 #include "device/hid/hid_device_info.h"
  18
  19 namespace device {
  20
  21 struct PendingHidTransfer;
  22
  23 class HidConnectionWin : public HidConnection {
  24  public:
  25   explicit HidConnectionWin(const HidDeviceInfo& device_info);
  26
  27   bool available() const;
  28
  29   virtual void Read(scoped_refptr<net::IOBufferWithSize> buffer,
  30                     const IOCallback& callback) OVERRIDE;
  31   virtual void Write(uint8_t report_id,
  32                      scoped_refptr<net::IOBufferWithSize> buffer,
  33                      const IOCallback& callback) OVERRIDE;
  34   virtual void GetFeatureReport(uint8_t report_id,
  35                                 scoped_refptr<net::IOBufferWithSize> buffer,
  36                                 const IOCallback& callback) OVERRIDE;
  37   virtual void SendFeatureReport(uint8_t report_id,
  38                                  scoped_refptr<net::IOBufferWithSize> buffer,
  39                                  const IOCallback& callback) OVERRIDE;
  40
  41   void OnTransferFinished(scoped_refptr<PendingHidTransfer> transfer);
  42   void OnTransferCanceled(scoped_refptr<PendingHidTransfer> transfer);
  43
  44  private:
  45   ~HidConnectionWin();
  46
  47   base::win::ScopedHandle file_;
  48   std::set<scoped_refptr<PendingHidTransfer> > transfers_;
  49
  50   base::ThreadChecker thread_checker_;
  51
  52   DISALLOW_COPY_AND_ASSIGN(HidConnectionWin);
  53 };
  54
  55 }  // namespace device
  56
  57 #endif  // DEVICE_HID_HID_CONNECTION_WIN_H_