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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// This class is used to detect device change and notify base::SystemMonitor
// on Linux.

#ifndef CONTENT_BROWSER_DEVICE_MONITOR_LINUX_H_
#define CONTENT_BROWSER_DEVICE_MONITOR_LINUX_H_

#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/message_loop/message_loop.h"

extern "C" {
struct udev_device;
}

namespace content {

class UdevLinux;

class DeviceMonitorLinux : public base::MessageLoop::DestructionObserver {
 public:
  DeviceMonitorLinux();
  virtual ~DeviceMonitorLinux();

 private:
  // This object is deleted on the UI thread after the IO thread has been
  // destroyed. Need to know when IO thread is being destroyed so that
  // we can delete udev_.
  virtual void WillDestroyCurrentMessageLoop() OVERRIDE;

  void Initialize();
  void OnDevicesChanged(udev_device* device);

  scoped_ptr<UdevLinux> udev_;

  DISALLOW_COPY_AND_ASSIGN(DeviceMonitorLinux);
};

}  // namespace content

#endif  // CONTENT_BROWSER_DEVICE_MONITOR_LINUX_H_