/****************************************************************************
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** Copyright (C) 2018 The Qt Company Ltd and/or its subsidiary(-ies).
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** This file is part of the QtSystems module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL$
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** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
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//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#ifndef QUDEVWRAPPER_P_H
#define QUDEVWRAPPER_P_H

#include <QtCore/QObject>

#include <libudev.h>

#if !defined(QT_NO_UDEV)

QT_BEGIN_NAMESPACE

class QSocketNotifier;

class QUDevWrapper: public QObject
{
    Q_OBJECT

public:
    QUDevWrapper(QObject *parent = 0);

Q_SIGNALS:
    void driveChanged();
    void batteryDataChanged(int battery, const QByteArray &attribute, const QByteArray &value);
    void chargerTypeChanged(const QByteArray &value, bool enabled);

protected:
    void connectNotify(const QMetaMethod &signal) override;
    void disconnectNotify(const QMetaMethod &signal) override;

private:
    Q_DISABLE_COPY(QUDevWrapper)

    struct udev *udev;
    struct udev_monitor *udevMonitor;
    int udevFd;
    QSocketNotifier *notifier;
    bool watcherEnabled;
    bool watchPowerSupply;
    bool watchDrives;

    bool addUDevWatcher(const QByteArray &subsystem);
    bool removeAllUDevWatcher();

private Q_SLOTS:
    void onUDevChanges();
};

QT_END_NAMESPACE

#endif // QT_NO_UDEV

#endif /* QUDEVWRAPPER_P_H */
