79 lines
3.6 KiB
C++
79 lines
3.6 KiB
C++
/***************************************************************************
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* Copyright (C) 2008 by Volker Lanz <vl@fidra.de> *
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* *
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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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* *
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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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* *
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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, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
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***************************************************************************/
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#if !defined(DEVICE__H)
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#define DEVICE__H
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#include <QString>
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#include <QObject>
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#include <qglobal.h>
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class PartitionTable;
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class CreatePartitionTableOperation;
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/** @brief A device.
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Represents a device like /dev/sda.
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Devices are the outermost entity; they contain a PartitionTable that itself contains Partitions.
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@see PartitionTable, Partition, LibParted::scanDevices()
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@author vl@fidra.de
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*/
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class Device : public QObject
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{
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Q_OBJECT
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Q_DISABLE_COPY(Device)
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friend class CreatePartitionTableOperation;
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public:
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Device(const QString& name, const QString& devicenode, qint32 heads, qint32 numSectors, qint32 cylinders, qint64 sectorSize);
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~Device();
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public:
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const QString& name() const { return m_Name; } /**< @return the Device's name, usually some manufacturer string */
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const QString& deviceNode() const { return m_DeviceNode; } /**< @return the Device's node, for example "/dev/sda" */
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PartitionTable& partitionTable() { return *m_PartitionTable; } /**< @return the Device's PartitionTable */
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const PartitionTable& partitionTable() const { return *m_PartitionTable; } /**< @return the Device's PartitionTable */
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qint32 heads() const { return m_Heads; } /**< @return the number of heads on the Device in CHS notation */
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qint32 cylinders() const { return m_Cylinders; } /**< @return the number of cylinders on the Device in CHS notation */
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qint32 sectorsPerTrack() const { return m_SectorsPerTrack; } /**< @return the number of sectors on the Device in CHS notation */
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qint32 sectorSize() const { return m_SectorSize; } /**< @return the sector size the Device claims to use */
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qint64 totalSectors() const { return static_cast<qint64>(heads()) * cylinders() * sectorsPerTrack(); } /**< @return the total number of sectors on the device */
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qint64 capacity() const { return totalSectors() * sectorSize(); } /**< @return the Device's capacity in bytes */
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qint64 cylinderSize() const { return static_cast<qint64>(heads()) * sectorsPerTrack(); } /**< @return the size of a cylinder on this Device in sectors */
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protected:
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void setPartitionTable(PartitionTable* ptable) { m_PartitionTable = ptable; }
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private:
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QString m_Name;
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QString m_DeviceNode;
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PartitionTable* m_PartitionTable;
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qint32 m_Heads;
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qint32 m_SectorsPerTrack;
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qint32 m_Cylinders;
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qint32 m_SectorSize;
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};
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#endif
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