src/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 PlatformClose() override;
  31   virtual void PlatformRead(const ReadCallback& callback) override;
  32   virtual void PlatformWrite(scoped_refptr<net::IOBuffer> buffer,
  33                              size_t size,
  34                              const WriteCallback& callback) override;
  35   virtual void PlatformGetFeatureReport(uint8_t report_id,
  36                                         const ReadCallback& callback) override;
  37   virtual void PlatformSendFeatureReport(
  38       scoped_refptr<net::IOBuffer> buffer,
  39       size_t size,
  40       const WriteCallback& callback) override;
  41
  42   bool available() const { return file_.IsValid(); }
  43
  44   void OnReadComplete(scoped_refptr<net::IOBuffer> buffer,
  45                       const ReadCallback& callback,
  46                       PendingHidTransfer* transfer,
  47                       bool signaled);
  48   void OnReadFeatureComplete(scoped_refptr<net::IOBuffer> buffer,
  49                              const ReadCallback& callback,
  50                              PendingHidTransfer* transfer,
  51                              bool signaled);
  52   void OnWriteComplete(const WriteCallback& callback,
  53                        PendingHidTransfer* transfer,
  54                        bool signaled);
  55
  56   base::win::ScopedHandle file_;
  57
  58   std::set<scoped_refptr<PendingHidTransfer> > transfers_;
  59
  60   DISALLOW_COPY_AND_ASSIGN(HidConnectionWin);
  61 };
  62
  63 }  // namespace device
  64
  65 #endif  // DEVICE_HID_HID_CONNECTION_WIN_H_