123 lines
4.3 KiB
C++
123 lines
4.3 KiB
C++
/*************************************************************************
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* Copyright (C) 2008 by Volker Lanz <vl@fidra.de> *
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* Copyright (C) 2016 by Andrius Štikonas <andrius@stikonas.eu> *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 3 of *
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* the License, or (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, see <http://www.gnu.org/licenses/>.*
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*************************************************************************/
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#include "core/lvmdevice.h"
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#include "core/partitiontable.h"
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#include "util/externalcommand.h"
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#include <QRegularExpression>
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/** Constructs a representation of LVM device with functionning LV as Partition
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@param name Volume Group name
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*/
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LvmDevice::LvmDevice(const QString& name, const QString& iconname)
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: VolumeManagerDevice(name,
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(QStringLiteral("/dev/") + name),
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getPeSize(name),
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getTotalPE(name),
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iconname,
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Device::LVM_Device)
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, m_peSize(getPeSize(name))
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, m_totalPE(getTotalPE(name))
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, m_allocPE(getAllocatedPE(name))
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, m_freePE(getFreePE(name))
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{
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//called to initialize member variables
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//refresh();
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initPartitions();
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}
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/*
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void LvmDevice::refresh() const
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{
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}
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*/
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void LvmDevice::initPartitions() const
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{
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//PartitionTable* pTable = new PartitionTable(PartitionTable::TableType::vmd,0, )
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}
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qint32 LvmDevice::getPeSize(const QString& vgname)
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{
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ExternalCommand cmd(QStringLiteral("lvm"),
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{ QStringLiteral("vgdisplay"),
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QStringLiteral("--units"),
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QStringLiteral("B"),
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vgname});
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if (cmd.run(-1) && cmd.exitCode() == 0) {
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QRegularExpression re(QStringLiteral("PE Size\\h+(\\d+)"));
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QRegularExpressionMatch match = re.match(cmd.output());
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if (match.hasMatch()) {
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return match.captured(1).toInt();
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}
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}
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return -1;
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}
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qint32 LvmDevice::getTotalPE(const QString& vgname)
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{
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ExternalCommand cmd(QStringLiteral("lvm"),
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{ QStringLiteral("vgdisplay"),
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QStringLiteral("--units"),
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QStringLiteral("B"),
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vgname});
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if (cmd.run(-1) && cmd.exitCode() == 0) {
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QRegularExpression re(QStringLiteral("Total PE\\h+(\\d+)"));
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QRegularExpressionMatch match = re.match(cmd.output());
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if (match.hasMatch()) {
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return match.captured(1).toInt();
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}
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}
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return -1;
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}
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qint32 LvmDevice::getAllocatedPE(const QString& vgname)
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{
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ExternalCommand cmd(QStringLiteral("lvm"),
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{ QStringLiteral("vgdisplay"),
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QStringLiteral("--units"),
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QStringLiteral("B"),
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vgname});
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if (cmd.run(-1) && cmd.exitCode() == 0) {
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QRegularExpression re(QStringLiteral("Alloc PE.*\\h+(\\d+)"));
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QRegularExpressionMatch match = re.match(cmd.output());
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if (match.hasMatch()) {
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return match.captured(1).toInt();
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}
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}
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return -1;
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}
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qint32 LvmDevice::getFreePE(const QString& vgname)
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{
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ExternalCommand cmd(QStringLiteral("lvm"),
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{ QStringLiteral("vgdisplay"),
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QStringLiteral("--units"),
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QStringLiteral("B"),
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vgname});
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if (cmd.run(-1) && cmd.exitCode() == 0) {
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QRegularExpression re(QStringLiteral("Free PE.*\\h+(\\d+)"));
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QRegularExpressionMatch match = re.match(cmd.output());
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if (match.hasMatch()) {
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return match.captured(1).toInt();
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}
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}
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return -1;
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}
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