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/*************************************************************************
* Copyright ( C ) 2008 by Volker Lanz < vl @ fidra . de > *
2016-03-02 19:00:31 +00:00
* Copyright ( C ) 2016 by Andrius Š tikonas < andrius @ stikonas . eu > *
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* *
* This program is free software ; you can redistribute it and / or *
* modify it under the terms of the GNU General Public License as *
* published by the Free Software Foundation ; either version 3 of *
* the License , or ( at your option ) any later version . *
* *
* This program is distributed in the hope that it will be useful , *
* but WITHOUT ANY WARRANTY ; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE . See the *
* GNU General Public License for more details . *
* *
* You should have received a copy of the GNU General Public License *
* along with this program . If not , see < http : //www.gnu.org/licenses/>.*
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
# include "jobs/resizefilesystemjob.h"
# include "core/partition.h"
# include "core/device.h"
# include "backend/corebackend.h"
# include "backend/corebackendmanager.h"
# include "backend/corebackenddevice.h"
# include "backend/corebackendpartitiontable.h"
# include "fs/filesystem.h"
# include "util/report.h"
# include "util/capacity.h"
# include <QDebug>
# include <KLocalizedString>
/** Creates a new ResizeFileSystemJob
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@ param d the Device the FileSystem to be resized is on
@ param p the Partition the FileSystem to be resized is on
@ param newlength the new length for the FileSystem ; if - 1 , the FileSystem will be resized to fill the entire Partition
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*/
ResizeFileSystemJob : : ResizeFileSystemJob ( Device & d , Partition & p , qint64 newlength ) :
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Job ( ) ,
m_Device ( d ) ,
m_Partition ( p ) ,
m_Maximize ( newlength = = - 1 ) ,
m_NewLength ( isMaximizing ( ) ? partition ( ) . length ( ) : newlength )
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{
}
qint32 ResizeFileSystemJob : : numSteps ( ) const
{
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return 100 ;
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}
bool ResizeFileSystemJob : : run ( Report & parent )
{
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Q_ASSERT ( partition ( ) . fileSystem ( ) . firstSector ( ) ! = - 1 ) ;
Q_ASSERT ( partition ( ) . fileSystem ( ) . lastSector ( ) ! = - 1 ) ;
Q_ASSERT ( newLength ( ) < = partition ( ) . length ( ) ) ;
if ( partition ( ) . fileSystem ( ) . firstSector ( ) = = - 1 | | partition ( ) . fileSystem ( ) . lastSector ( ) = = - 1 | | newLength ( ) > partition ( ) . length ( ) ) {
qWarning ( ) < < " file system first sector: " < < partition ( ) . fileSystem ( ) . firstSector ( ) < < " , last sector: " < < partition ( ) . fileSystem ( ) . lastSector ( ) < < " , new length: " < < newLength ( ) < < " , partition length: " < < partition ( ) . length ( ) ;
return false ;
}
bool rval = false ;
Report * report = jobStarted ( parent ) ;
if ( partition ( ) . fileSystem ( ) . length ( ) = = newLength ( ) ) {
report - > line ( ) < < xi18ncp ( " @info/plain " , " The file system on partition <filename>%2</filename> already has the requested length of 1 sector. " , " The file system on partition <filename>%2</filename> already has the requested length of %1 sectors. " , newLength ( ) , partition ( ) . deviceNode ( ) ) ;
rval = true ;
} else {
report - > line ( ) < < i18nc ( " @info/plain " , " Resizing file system from %1 to %2 sectors. " , partition ( ) . fileSystem ( ) . length ( ) , newLength ( ) ) ;
FileSystem : : CommandSupportType support = ( newLength ( ) < partition ( ) . fileSystem ( ) . length ( ) ) ? partition ( ) . fileSystem ( ) . supportShrink ( ) : partition ( ) . fileSystem ( ) . supportGrow ( ) ;
switch ( support ) {
case FileSystem : : cmdSupportBackend : {
Report * childReport = report - > newChild ( ) ;
childReport - > line ( ) < < i18nc ( " @info/plain " , " Resizing a %1 file system using internal backend functions. " , partition ( ) . fileSystem ( ) . name ( ) ) ;
rval = resizeFileSystemBackend ( * childReport ) ;
break ;
}
case FileSystem : : cmdSupportFileSystem : {
const qint64 newLengthInByte = Capacity ( newLength ( ) * device ( ) . logicalSectorSize ( ) ) . toInt ( Capacity : : Byte ) ;
rval = partition ( ) . fileSystem ( ) . resize ( * report , partition ( ) . deviceNode ( ) , newLengthInByte ) ;
break ;
}
default :
report - > line ( ) < < xi18nc ( " @info/plain " , " The file system on partition <filename>%1</filename> cannot be resized because there is no support for it. " , partition ( ) . deviceNode ( ) ) ;
break ;
}
if ( rval )
partition ( ) . fileSystem ( ) . setLastSector ( partition ( ) . fileSystem ( ) . firstSector ( ) + newLength ( ) - 1 ) ;
}
jobFinished ( * report , rval ) ;
return rval ;
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}
bool ResizeFileSystemJob : : resizeFileSystemBackend ( Report & report )
{
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bool rval = false ;
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CoreBackendDevice * backendDevice = CoreBackendManager : : self ( ) - > backend ( ) - > openDevice ( device ( ) . deviceNode ( ) ) ;
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if ( backendDevice ) {
CoreBackendPartitionTable * backendPartitionTable = backendDevice - > openPartitionTable ( ) ;
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if ( backendPartitionTable ) {
connect ( CoreBackendManager : : self ( ) - > backend ( ) , SIGNAL ( progress ( int ) ) , this , SIGNAL ( progress ( int ) ) ) ;
rval = backendPartitionTable - > resizeFileSystem ( report , partition ( ) , newLength ( ) ) ;
disconnect ( CoreBackendManager : : self ( ) - > backend ( ) , SIGNAL ( progress ( int ) ) , this , SIGNAL ( progress ( int ) ) ) ;
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if ( rval ) {
report . line ( ) < < i18nc ( " @info/plain " , " Successfully resized file system using internal backend functions. " ) ;
backendPartitionTable - > commit ( ) ;
}
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delete backendPartitionTable ;
} else
report . line ( ) < < xi18nc ( " @info/plain " , " Could not open partition <filename>%1</filename> while trying to resize the file system. " , partition ( ) . deviceNode ( ) ) ;
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delete backendDevice ;
} else
report . line ( ) < < xi18nc ( " @info/plain " , " Could not read geometry for partition <filename>%1</filename> while trying to resize the file system. " , partition ( ) . deviceNode ( ) ) ;
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return rval ;
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}
QString ResizeFileSystemJob : : description ( ) const
{
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if ( isMaximizing ( ) )
return xi18nc ( " @info/plain " , " Maximize file system on <filename>%1</filename> to fill the partition " , partition ( ) . deviceNode ( ) ) ;
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return xi18ncp ( " @info/plain " , " Resize file system on partition <filename>%2</filename> to 1 sector " , " Resize file system on partition <filename>%2</filename> to %1 sectors " , newLength ( ) , partition ( ) . deviceNode ( ) ) ;
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}