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/win/scoped_handle.h"
  13 #include "device/hid/hid_connection.h"
  14
  15 namespace device {
  16
  17 struct PendingHidTransfer;
  18
  19 class HidConnectionWin : public HidConnection {
  20  public:
  21   explicit HidConnectionWin(const HidDeviceInfo& device_info);
  22
  23  private:
  24   friend class HidServiceWin;
  25   friend struct PendingHidTransfer;
  26
  27   ~HidConnectionWin();
  28
  29   // HidConnection implementation.
  30   virtual void PlatformRead(const ReadCallback& callback) OVERRIDE;
  31   virtual void PlatformWrite(scoped_refptr<net::IOBuffer> buffer,
  32                              size_t size,
  33                              const WriteCallback& callback) OVERRIDE;
  34   virtual void PlatformGetFeatureReport(uint8_t report_id,
  35                                         const ReadCallback& callback) OVERRIDE;
  36   virtual void PlatformSendFeatureReport(
  37       scoped_refptr<net::IOBuffer> buffer,
  38       size_t size,
  39       const WriteCallback& callback) OVERRIDE;
  40
  41   bool available() const { return file_.IsValid(); }
  42
  43   void OnReadComplete(scoped_refptr<net::IOBuffer> buffer,
  44                       const ReadCallback& callback,
  45                       PendingHidTransfer* transfer,
  46                       bool signaled);
  47   void OnReadFeatureComplete(scoped_refptr<net::IOBuffer> buffer,
  48                              const ReadCallback& callback,
  49                              PendingHidTransfer* transfer,
  50                              bool signaled);
  51   void OnWriteComplete(const WriteCallback& callback,
  52                        PendingHidTransfer* transfer,
  53                        bool signaled);
  54
  55   base::win::ScopedHandle file_;
  56
  57   std::set<scoped_refptr<PendingHidTransfer> > transfers_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(HidConnectionWin);
  60 };
  61
  62 }  // namespace device
  63
  64 #endif  // DEVICE_HID_HID_CONNECTION_WIN_H_