156 lines
4.6 KiB
C++
156 lines
4.6 KiB
C++
/*
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Copyright 2009 Benjamin K. Stuhl <bks24@cornell.edu>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) version 3, or any
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later version accepted by the membership of KDE e.V. (or its
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successor approved by the membership of KDE e.V.), which shall
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act as a proxy defined in Section 6 of version 3 of the license.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef UDEVQT_H
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#define UDEVQT_H
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#include <QObject>
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#include <QList>
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#include <QString>
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#include <QStringList>
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#include <QVariant>
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#include <QSocketNotifier>
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#include <libudev.h>
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namespace UdevQt
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{
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class DevicePrivate;
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class Device
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{
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public:
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Device();
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Device(const Device &other);
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~Device();
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Device &operator= (const Device &other);
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bool isValid() const;
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QString subsystem() const;
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QString devType() const;
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QString name() const;
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QString sysfsPath() const;
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int sysfsNumber() const;
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QString driver() const;
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QString primaryDeviceFile() const;
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QStringList alternateDeviceSymlinks() const;
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QStringList deviceProperties() const;
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Device parent() const;
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// ### should this really be a QVariant? as far as udev knows, everything is a string...
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// see also Client::devicesByProperty
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QVariant deviceProperty(const QString &name) const;
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QString decodedDeviceProperty(const QString &name) const;
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QVariant sysfsProperty(const QString &name) const;
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Device ancestorOfType(const QString &subsys, const QString &devtype) const;
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private:
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Device(DevicePrivate *devPrivate);
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friend class Client;
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friend class ClientPrivate;
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DevicePrivate *d;
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};
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typedef QList<Device> DeviceList;
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class ClientPrivate;
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class Client : public QObject
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{
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Q_OBJECT
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Q_PROPERTY(QStringList watchedSubsystems READ watchedSubsystems WRITE setWatchedSubsystems)
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public:
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Client(QObject *parent = nullptr);
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Client(const QStringList &subsystemList, QObject *parent = nullptr);
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~Client() override;
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QStringList watchedSubsystems() const;
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void setWatchedSubsystems(const QStringList &subsystemList);
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DeviceList allDevices();
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DeviceList devicesByProperty(const QString &property, const QVariant &value);
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DeviceList devicesBySubsystem(const QString &subsystem);
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Device deviceByDeviceFile(const QString &deviceFile);
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Device deviceBySysfsPath(const QString &sysfsPath);
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Device deviceBySubsystemAndName(const QString &subsystem, const QString &name);
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signals:
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void deviceAdded(const UdevQt::Device &dev);
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void deviceRemoved(const UdevQt::Device &dev);
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void deviceChanged(const UdevQt::Device &dev);
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void deviceOnlined(const UdevQt::Device &dev);
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void deviceOfflined(const UdevQt::Device &dev);
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private:
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friend class ClientPrivate;
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Q_PRIVATE_SLOT(d, void _uq_monitorReadyRead(int fd))
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ClientPrivate *d;
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};
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class DevicePrivate
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{
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public:
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DevicePrivate(struct udev_device *udev_, bool ref = true);
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~DevicePrivate();
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DevicePrivate &operator=(const DevicePrivate& other);
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QString decodePropertyValue(const QByteArray &encoded) const;
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struct udev_device *udev;
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};
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class ClientPrivate
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{
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public:
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enum ListenToWhat { ListenToList, ListenToNone };
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ClientPrivate(Client *q_);
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~ClientPrivate();
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void init(const QStringList &subsystemList, ListenToWhat what);
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void setWatchedSubsystems(const QStringList &subsystemList);
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void _uq_monitorReadyRead(int fd);
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DeviceList deviceListFromEnumerate(struct udev_enumerate *en);
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struct udev *udev;
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struct udev_monitor *monitor;
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Client *q;
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QSocketNotifier *monitorNotifier;
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QStringList watchedSubsystems;
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};
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inline QStringList listFromListEntry(struct udev_list_entry *list)
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{
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QStringList ret;
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struct udev_list_entry *entry;
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udev_list_entry_foreach(entry, list) {
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ret << QString::fromLatin1(udev_list_entry_get_name(entry));
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}
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return ret;
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}
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}
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#endif
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