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92 lines
2.2 KiB
C++
92 lines
2.2 KiB
C++
/*
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Cache for recently used devices.
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Copyright (C) 2012 Philipp Schmidt <philschmidt@gmx.net>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef DEVICECACHE_H
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#define DEVICECACHE_H
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#include <QPair>
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#include <QHash>
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#include <QThread>
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#include <QEventLoop>
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#include <Solid/DeviceNotifier>
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#include <Solid/Device>
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#include <libmtp.h>
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class CachedDevice : public QObject
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{
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Q_OBJECT
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private:
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qint32 timeout;
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LIBMTP_mtpdevice_t* mtpdevice;
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LIBMTP_raw_device_t rawdevice;
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QString name;
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QString udi;
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public:
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explicit CachedDevice(LIBMTP_mtpdevice_t* device, LIBMTP_raw_device_t* rawdevice, const QString udi, qint32 timeout);
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virtual ~CachedDevice();
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LIBMTP_mtpdevice_t* getDevice();
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const QString getName() const;
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const QString getUdi() const;
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};
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class DeviceCache : public QEventLoop
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{
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Q_OBJECT
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private:
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/**
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* Fields in order: Devicename (QString), expiration Timer, pointer to device
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*/
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QHash< QString, CachedDevice* > nameCache, udiCache;
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Solid::DeviceNotifier *notifier;
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qint32 timeout;
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public:
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DeviceCache( qint32 timeout, QObject* parent = 0 );
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virtual ~DeviceCache();
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/*
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* Functions for accessing the device
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*/
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private:
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void checkDevice ( Solid::Device solidDevice );
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private slots:
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void deviceAdded( const QString &udi );
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void deviceRemoved( const QString &udi );
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public:
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QHash< QString, CachedDevice* > getAll();
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CachedDevice* get(const QString& string, bool isUdi = false);
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bool contains(const QString& string, bool isUdi = false);
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int size();
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};
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#endif // DEVICECACHE_H
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