udisksdevicebackend.h

/*
    SPDX-FileCopyrightText: 2010 Michael Zanetti <mzanetti@kde.org>
    SPDX-FileCopyrightText: 2010-2012 Lukáš Tinkl <ltinkl@redhat.com>
    SPDX-FileCopyrightText: 2012 Dan Vrátil <dvratil@redhat.com>
 
    SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
*/
 
#ifndef UDISKSDEVICEBACKEND_H
#define UDISKSDEVICEBACKEND_H
 
#include <QDBusObjectPath>
#include <QObject>
#include <QStringList>
#include <QThreadStorage>
 
#include "udisks2.h"
 
namespace Solid
{
namespace Backends
{
namespace UDisks2
{
class DeviceBackend : public QObject
{
    Q_OBJECT
 
public:
    static DeviceBackend *backendForUDI(const QString &udi, bool create = true);
    static void destroyBackend(const QString &udi);
 
    DeviceBackend(const QString &udi);
    ~DeviceBackend() override;
 
    QVariant prop(const QString &key) const;
    bool propertyExists(const QString &key) const;
    QVariantMap allProperties() const;
 
    QStringList interfaces() const;
    const QString &udi() const;
 
    void invalidateProperties();
Q_SIGNALS:
    void propertyChanged(const QMap<QString, int> &changeMap);
    void changed();
 
private Q_SLOTS:
    void slotInterfacesAdded(const QDBusObjectPath &object_path, const VariantMapMap &interfaces_and_properties);
    void slotInterfacesRemoved(const QDBusObjectPath &object_path, const QStringList &interfaces);
    void slotPropertiesChanged(const QString &ifaceName, const QVariantMap &changedProps, const QStringList &invalidatedProps);
 
private:
    void initInterfaces();
    QString introspect() const;
    void checkCache(const QString &key) const;
    void cacheProperty(const QString &key, const QVariant &value) const;
 
    // NOTE: make sure to insert items only through cacheProperty
    mutable QVariantMap m_propertyCache;
    QStringList m_interfaces;
    QString m_udi;
 
    static QThreadStorage<QMap<QString, DeviceBackend *>> s_backends;
};
 
} /* namespace UDisks2 */
} /* namespace Backends */
} /* namespace Solid */
 
#endif /* UDISKSDEVICEBACKEND_H */