content/browser/device_monitor_udev.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 // This class is used to detect device change and notify base::SystemMonitor
   6 // on Linux.
   7
   8 #ifndef CONTENT_BROWSER_DEVICE_MONITOR_UDEV_H_
   9 #define CONTENT_BROWSER_DEVICE_MONITOR_UDEV_H_
  10
  11 #include "base/basictypes.h"
  12 #include "base/memory/scoped_ptr.h"
  13 #include "base/message_loop/message_loop.h"
  14
  15 extern "C" {
  16 struct udev_device;
  17 }
  18
  19 namespace content {
  20
  21 class UdevLinux;
  22
  23 class DeviceMonitorLinux : public base::MessageLoop::DestructionObserver {
  24  public:
  25   DeviceMonitorLinux();
  26   ~DeviceMonitorLinux() override;
  27
  28  private:
  29   // This object is deleted on the UI thread after the IO thread has been
  30   // destroyed. Need to know when IO thread is being destroyed so that
  31   // we can delete udev_.
  32   void WillDestroyCurrentMessageLoop() override;
  33
  34   void Initialize();
  35   void OnDevicesChanged(udev_device* device);
  36
  37   scoped_ptr<UdevLinux> udev_;
  38
  39   DISALLOW_COPY_AND_ASSIGN(DeviceMonitorLinux);
  40 };
  41
  42 }  // namespace content
  43
  44 #endif  // CONTENT_BROWSER_DEVICE_MONITOR_UDEV_H_