Added new class for dmraid support
svn path=/trunk/; revision=1092
This commit is contained in:
Curtis Gedak
parent
dbf81bc417
commit
5865c92dc0
10
ChangeLog
10
ChangeLog
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@ -1,3 +1,13 @@
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2009-03-14 Curtis Gedak <gedakc@gmail.com>
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* include/DMRaid.h,
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include/Makefile.am,
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src/DMRaid.cc,
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src/Makefile.am: Added new class for dmraid support.
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* README: Added note about requirements for dmraid support.
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- added note that xxd command also needed for NTFS support.
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2009-03-13 Curtis Gedak <gedakc@gmail.com>
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2009-03-13 Curtis Gedak <gedakc@gmail.com>
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* include/Utils.h,
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* include/Utils.h,
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11
README
11
README
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@ -112,7 +112,7 @@ Optional packages include:
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hfsutils
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hfsutils
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hfsprogs
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hfsprogs
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jfsutils
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jfsutils
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ntfsprogs
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ntfsprogs - xxd command from vim-common also required
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reiser4progs
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reiser4progs
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reiserfsprogs
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reiserfsprogs
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xfsprogs
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xfsprogs
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@ -125,3 +125,12 @@ Optional packages include:
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ext4 file detection.
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ext4 file detection.
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blkid is part of the e2fsprogs package.
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blkid is part of the e2fsprogs package.
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For dmraid support, the following packages are required:
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dmsetup - removes /dev/mapper entries
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dmraid - lists dmraid devices and creates /dev/mapper entries
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kpartx - creates /dev/mapper entries such as
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/dev/mapper/isw_idedecefg_Volume0p1
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@ -0,0 +1,77 @@
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/* Copyright (C) 2009 Curtis Gedak
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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 Library 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 Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/* READ THIS!
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* This class was created in an effort to reduce the complexity of the
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* GParted_Core class.
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* This class provides support for motherboard based RAID devices, also know
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* as Fake RAID.
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* Static elements are used in order to reduce the disk accesses required to
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* load the data structures upon each initialization of the class.
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*/
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#ifndef DMRAID_H_
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#define DMRAID_H_
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#include "../include/Utils.h"
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#include "../include/Partition.h"
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#include "../include/OperationDetail.h"
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#include <vector>
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//Declare some constants
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const Glib::ustring DEV_MAP_PATH = "/dev/mapper/" ;
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namespace GParted
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{
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class DMRaid
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{
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public:
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DMRaid() ;
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DMRaid( const bool & do_refresh ) ;
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~DMRaid() ;
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bool is_dmraid_supported() ;
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bool is_dmraid_device( const Glib::ustring & dev_path ) ;
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void get_devices( std::vector<Glib::ustring> & dmraid_devices ) ;
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Glib::ustring get_dmraid_name( const Glib::ustring & dev_path ) ;
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Glib::ustring get_dmraid_prefix( const Glib::ustring & dev_path ) ;
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int execute_command( const Glib::ustring & command, OperationDetail & operationdetail ) ;
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bool create_dev_map_entries( const Partition & partition, OperationDetail & operationdetail ) ;
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bool create_dev_map_entries( const Glib::ustring & dev_path ) ;
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bool delete_affected_dev_map_entries( const Partition & partition, OperationDetail & operationdetail ) ;
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bool delete_dev_map_entry( const Partition & partition, OperationDetail & operationdetail ) ;
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bool partition_is_mounted_by_path( const Glib::ustring & partition_path
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, const std::vector<Glib::ustring> & mount_info ) ;
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bool purge_dev_map_entries( const Glib::ustring & dev_path ) ;
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bool update_dev_map_entry( const Partition & partition, OperationDetail & operationdetail ) ;
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private:
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void load_dmraid_cache() ;
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void set_commands_found() ;
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void get_dmraid_dir_entries( const Glib::ustring & dev_path, std::vector<Glib::ustring> & dir_list ) ;
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void get_affected_dev_map_entries( const Partition & partition, std::vector<Glib::ustring> & affected_entries ) ;
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static bool dmraid_cache_initialized ;
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static bool dmraid_found ;
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static bool dmsetup_found ;
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static bool kpartx_found ;
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static std::vector<Glib::ustring> dmraid_devices ;
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};
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}//GParted
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#endif /* DMRAID_H_ */
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@ -13,6 +13,7 @@ EXTRA_DIST = \
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DialogFeatures.h \
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DialogFeatures.h \
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DialogManageFlags.h \
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DialogManageFlags.h \
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DrawingAreaVisualDisk.h \
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DrawingAreaVisualDisk.h \
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DMRaid.h \
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FileSystem.h \
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FileSystem.h \
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Frame_Resizer_Base.h \
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Frame_Resizer_Base.h \
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Frame_Resizer_Extended.h \
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Frame_Resizer_Extended.h \
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@ -0,0 +1,352 @@
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/* Copyright (C) 2009 Curtis Gedak
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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 Library 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 Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "../include/DMRaid.h"
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#include <stdlib.h> //atoi function
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namespace GParted
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{
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//Initialize static data elements
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bool DMRaid::dmraid_cache_initialized = false ;
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bool DMRaid::dmraid_found = false ;
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bool DMRaid::dmsetup_found = false ;
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bool DMRaid::kpartx_found = false ;
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std::vector<Glib::ustring> DMRaid::dmraid_devices ;
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DMRaid::DMRaid()
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{
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//Ensure that cache has been loaded at least once
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if ( ! dmraid_cache_initialized ) {
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dmraid_cache_initialized = true ;
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set_commands_found() ;
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load_dmraid_cache() ;
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}
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}
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DMRaid::DMRaid( const bool & do_refresh )
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{
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//Ensure that cache has been loaded at least once
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if ( ! dmraid_cache_initialized )
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{
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dmraid_cache_initialized = true ;
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set_commands_found() ;
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if ( do_refresh == false )
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load_dmraid_cache() ;
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}
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if ( do_refresh )
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load_dmraid_cache() ;
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}
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DMRaid::~DMRaid()
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{
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}
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void DMRaid::load_dmraid_cache()
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{
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//Load data into dmraid structures
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Glib::ustring output, error ;
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if ( dmraid_found ) {
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if ( ! Utils::execute_command( "dmraid -sa -c", output, error, true ) )
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{
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Glib::ustring temp = Utils::regexp_label( output, "^(no raid disks).*" ) ;
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if ( temp == "no raid disks" )
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dmraid_devices .clear() ;
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else
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Utils::tokenize( output, dmraid_devices, "\n" ) ;
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}
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else
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dmraid_devices .clear() ;
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}
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}
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void DMRaid::set_commands_found()
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{
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//Set status of commands found
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dmraid_found = (! Glib::find_program_in_path( "dmraid" ) .empty() ) ;
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dmsetup_found = (! Glib::find_program_in_path( "dmsetup" ) .empty() ) ;
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kpartx_found = (! Glib::find_program_in_path( "kpartx" ) .empty() ) ;
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}
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bool DMRaid::is_dmraid_supported()
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{
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//Determine if dmraid is supported on this computer
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return ( dmraid_found && dmsetup_found && kpartx_found ) ;
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}
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bool DMRaid::is_dmraid_device( const Glib::ustring & dev_path )
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{
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//Determine if the device is a dmraid device
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bool device_found = false ; //assume not found
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if ( is_dmraid_supported() )
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{
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for ( unsigned int k=0; k < dmraid_devices .size(); k++ )
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if ( dev_path == (DEV_MAP_PATH + dmraid_devices[k]) )
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device_found = true ;
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}
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return device_found ;
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}
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//FIXME: Copy of code from FileSystem.cc.
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// This should be replaced when a general execute_command with asynchronous updates is built.
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int DMRaid::execute_command( const Glib::ustring & command, OperationDetail & operationdetail )
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{
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Glib::ustring output, error ;
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operationdetail .add_child( OperationDetail( command, STATUS_NONE, FONT_BOLD_ITALIC ) ) ;
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int exit_status = Utils::execute_command( "nice -n 19 " + command, output, error ) ;
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if ( ! output .empty() )
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operationdetail .get_last_child() .add_child( OperationDetail( output, STATUS_NONE, FONT_ITALIC ) ) ;
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if ( ! error .empty() )
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operationdetail .get_last_child() .add_child( OperationDetail( error, STATUS_NONE, FONT_ITALIC ) ) ;
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return exit_status ;
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}
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void DMRaid::get_devices( std::vector<Glib::ustring> & device_list )
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{
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//Retrieve list of dmraid devices
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device_list .clear() ;
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for ( unsigned int k=0; k < dmraid_devices .size(); k++ )
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device_list .push_back( DEV_MAP_PATH + dmraid_devices[k] ) ;
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}
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Glib::ustring DMRaid::get_dmraid_name( const Glib::ustring & dev_path )
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{
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//Retrieve name of dmraid device
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Glib::ustring dmraid_name = "" ;
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Glib::ustring regexp = "" ;
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for ( unsigned int k=0; k < dmraid_devices .size(); k++ )
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{
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regexp = ".*(" + dmraid_devices[k] + ").*" ;
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if ( Utils::regexp_label( dev_path, regexp ) == dmraid_devices[k] )
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dmraid_name = dmraid_devices[k] ;
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}
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return dmraid_name ;
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}
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Glib::ustring DMRaid::get_dmraid_prefix( const Glib::ustring & dev_path )
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{
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//Retrieve prefix of dmraid device representing fake RAID manufacturer
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//First try to get longer prefix including underscore to more accurately define the dmraid prefix
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Glib::ustring dmraid_name = get_dmraid_name( dev_path ) ;
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Glib::ustring regexp = "^([^_]*_[^_]*)" ;
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Glib::ustring dmraid_prefix = Utils::regexp_label( dmraid_name, regexp ) ;
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if ( dmraid_prefix .size() <= 0 )
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{
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//Retrieve shorter prefix because longer name did not work
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regexp = "^([^_]*)" ;
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dmraid_prefix = Utils::regexp_label( dmraid_name, regexp ) ;
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}
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return dmraid_prefix ;
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}
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void DMRaid::get_dmraid_dir_entries( const Glib::ustring & dev_path, std::vector<Glib::ustring> & dir_list )
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{
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//Build list of all device entries matching device path
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Glib::ustring dmraid_name = get_dmraid_name( dev_path ) ;
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//Loop through the entries in the directory
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Glib::ustring filename = "" ;
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Glib::Dir dir( DEV_MAP_PATH) ;
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while ( ( filename = dir .read_name() ) != "" )
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{
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if ( filename == "control" )
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continue ;
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if ( Utils::regexp_label( filename, "^(" + dmraid_name + ")" ) == dmraid_name )
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dir_list .push_back( filename ) ;
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}
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}
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bool DMRaid::create_dev_map_entries( const Partition & partition, OperationDetail & operationdetail )
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{
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//Create all missing dev mapper entries for a specified device.
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// Try both dmraid -ay and kpartx -a
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Glib::ustring command ;
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bool exit_status = true ; //assume success
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/*TO TRANSLATORS: looks like create /dev/mapper entries */
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Glib::ustring tmp = String::ucompose ( _("create missing %1 entries"), DEV_MAP_PATH ) ;
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operationdetail .add_child( OperationDetail( tmp ) );
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Glib::ustring dmraid_prefix = get_dmraid_prefix( partition .device_path ) ;
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command = "dmraid -ay -v " + dmraid_prefix ;
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if ( execute_command( command, operationdetail .get_last_child() ) )
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exit_status = false ; //command failed
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Glib::ustring dmraid_name = get_dmraid_name( partition .device_path ) ;
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command = "kpartx -a -v " + DEV_MAP_PATH + dmraid_name ;
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if ( execute_command( command, operationdetail .get_last_child() ) )
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exit_status = false ; //command failed
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operationdetail .get_last_child() .set_status( exit_status ? STATUS_SUCCES : STATUS_ERROR ) ;
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return exit_status ;
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}
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bool DMRaid::create_dev_map_entries( const Glib::ustring & dev_path )
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{
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//Create all missing dev mapper entries for a specified device.
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// Try both dmraid -ay and kpartx -a
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Glib::ustring command, output, error ;
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Glib::ustring dmraid_prefix = get_dmraid_prefix( dev_path ) ;
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Glib::ustring dmraid_name = get_dmraid_name( dev_path ) ;
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command = "dmraid -ay -v " + dmraid_prefix + " && kpartx -a -v " + DEV_MAP_PATH + dmraid_name ;
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bool exit_status = ! Utils::execute_command( command, output, error, true ) ;
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return exit_status ;
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}
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void DMRaid::get_affected_dev_map_entries( const Partition & partition, std::vector<Glib::ustring> & affected_entries )
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{
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//Build list of affected /dev/mapper entries when a partition is to be deleted.
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Glib::ustring dmraid_name = get_dmraid_name( partition .device_path ) ;
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||||||
|
Glib::ustring regexp = "^" + DEV_MAP_PATH + "(.*)$" ;
|
||||||
|
Glib::ustring partition_name = Utils::regexp_label( partition .get_path(), regexp ) ;
|
||||||
|
|
||||||
|
affected_entries .push_back( partition_name ) ;
|
||||||
|
|
||||||
|
if ( partition .inside_extended )
|
||||||
|
{
|
||||||
|
std::vector<Glib::ustring> dir_list ;
|
||||||
|
|
||||||
|
//Retrieve list of matching directory entries
|
||||||
|
get_dmraid_dir_entries( partition .device_path, dir_list );
|
||||||
|
|
||||||
|
Glib::ustring dmraid_name = get_dmraid_name( partition .device_path ) ;
|
||||||
|
|
||||||
|
//All logical partition numbers greater than the partition to be deleted will be affected
|
||||||
|
for ( unsigned int k=0; k < dir_list .size(); k++ )
|
||||||
|
{
|
||||||
|
if ( Utils::regexp_label( dir_list[k], "^(" + dmraid_name + ")" ) == dmraid_name )
|
||||||
|
{
|
||||||
|
if ( std::atoi( Utils::regexp_label( dir_list[k],
|
||||||
|
dmraid_name + "p?([0-9]+)"
|
||||||
|
) .c_str()
|
||||||
|
) > partition .partition_number
|
||||||
|
)
|
||||||
|
affected_entries .push_back( dir_list[k] ) ;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
bool DMRaid::delete_affected_dev_map_entries( const Partition & partition, OperationDetail & operationdetail )
|
||||||
|
{
|
||||||
|
//Delete all affected dev mapper entries (logical partitions >= specificied partition)
|
||||||
|
|
||||||
|
std::vector<Glib::ustring> affected_entries ;
|
||||||
|
Glib::ustring command ;
|
||||||
|
bool exit_status = true ; //assume successful
|
||||||
|
|
||||||
|
/*TO TRANSLATORS: looks like delete affected /dev/mapper entries */
|
||||||
|
Glib::ustring tmp = String::ucompose ( _("delete affected %1 entries"), DEV_MAP_PATH ) ;
|
||||||
|
operationdetail .add_child( OperationDetail( tmp ) );
|
||||||
|
|
||||||
|
get_affected_dev_map_entries( partition, affected_entries ) ;
|
||||||
|
|
||||||
|
for ( unsigned int k=0; k < affected_entries .size(); k++ )
|
||||||
|
{
|
||||||
|
command = "dmsetup remove " + DEV_MAP_PATH + affected_entries[k] ;
|
||||||
|
if ( execute_command( command, operationdetail .get_last_child() ) )
|
||||||
|
exit_status = false ; //command failed
|
||||||
|
}
|
||||||
|
|
||||||
|
operationdetail .get_last_child() .set_status( exit_status ? STATUS_SUCCES : STATUS_ERROR ) ;
|
||||||
|
|
||||||
|
return exit_status ;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool DMRaid::delete_dev_map_entry( const Partition & partition, OperationDetail & operationdetail )
|
||||||
|
{
|
||||||
|
//Delete a single dev mapper entry
|
||||||
|
|
||||||
|
/*TO TRANSLATORS: looks like delete /dev/mapper entry */
|
||||||
|
Glib::ustring tmp = String::ucompose ( _("delete %1 entry"), DEV_MAP_PATH ) ;
|
||||||
|
operationdetail .add_child( OperationDetail( tmp ) );
|
||||||
|
|
||||||
|
Glib::ustring command = "dmsetup remove " + partition .get_path() ;
|
||||||
|
bool exit_status = ! execute_command( command, operationdetail .get_last_child() ) ;
|
||||||
|
|
||||||
|
operationdetail .get_last_child() .set_status( exit_status ? STATUS_SUCCES : STATUS_ERROR ) ;
|
||||||
|
|
||||||
|
return exit_status ;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool DMRaid::purge_dev_map_entries( const Glib::ustring & dev_path )
|
||||||
|
{
|
||||||
|
//Delete all dev mapper entries for dmraid device
|
||||||
|
|
||||||
|
std::vector<Glib::ustring> dir_list ;
|
||||||
|
Glib::ustring command ;
|
||||||
|
Glib::ustring output, error ;
|
||||||
|
bool exit_status = true ; //assume successful
|
||||||
|
|
||||||
|
get_dmraid_dir_entries( dev_path, dir_list ) ;
|
||||||
|
|
||||||
|
for ( unsigned int k=0; k < dir_list .size(); k++ )
|
||||||
|
{
|
||||||
|
command = "dmsetup remove " + DEV_MAP_PATH + dir_list[k] ;
|
||||||
|
if ( Utils::execute_command( command, output, error, true ) )
|
||||||
|
exit_status = false ; //command failed
|
||||||
|
}
|
||||||
|
|
||||||
|
return exit_status ;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool DMRaid::update_dev_map_entry( const Partition & partition, OperationDetail & operationdetail )
|
||||||
|
{
|
||||||
|
//Update dmraid entry by first deleting the entry then recreating the entry
|
||||||
|
|
||||||
|
bool exit_status = true ; //assume successful
|
||||||
|
|
||||||
|
/*TO TRANSLATORS: looks like update /dev/mapper entry */
|
||||||
|
Glib::ustring tmp = String::ucompose ( _("update %1 entry"), DEV_MAP_PATH ) ;
|
||||||
|
operationdetail .add_child( OperationDetail( tmp ) );
|
||||||
|
|
||||||
|
if( ! delete_dev_map_entry( partition , operationdetail .get_last_child() ) )
|
||||||
|
exit_status = false ; //command failed
|
||||||
|
|
||||||
|
if( ! create_dev_map_entries( partition , operationdetail .get_last_child() ) )
|
||||||
|
exit_status = false ; //command failed
|
||||||
|
|
||||||
|
operationdetail .get_last_child() .set_status( exit_status ? STATUS_SUCCES : STATUS_ERROR ) ;
|
||||||
|
|
||||||
|
return exit_status ;
|
||||||
|
}
|
||||||
|
|
||||||
|
}//GParted
|
||||||
|
|
@ -22,6 +22,7 @@ gpartedbin_SOURCES = \
|
||||||
DialogFeatures.cc \
|
DialogFeatures.cc \
|
||||||
DialogManageFlags.cc \
|
DialogManageFlags.cc \
|
||||||
DrawingAreaVisualDisk.cc \
|
DrawingAreaVisualDisk.cc \
|
||||||
|
DMRaid.cc \
|
||||||
FileSystem.cc \
|
FileSystem.cc \
|
||||||
Frame_Resizer_Base.cc \
|
Frame_Resizer_Base.cc \
|
||||||
Frame_Resizer_Extended.cc \
|
Frame_Resizer_Extended.cc \
|
||||||
|
|
|
||||||
Loading…
Reference in New Issue