"Fossies" - the Fresh Open Source Software archive 
Member "gparted-0.16.1/src/xfs.cc" of archive gparted-0.16.1.tar.gz:
/* Copyright (C) 2004 Bart
* Copyright (C) 2008, 2009, 2010 Curtis Gedak
*
* 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 2 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 Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "../include/xfs.h"
namespace GParted
{
FS xfs::get_filesystem_support()
{
FS fs ;
fs .filesystem = GParted::FS_XFS ;
if ( ! Glib::find_program_in_path( "xfs_db" ) .empty() )
{
fs .read = GParted::FS::EXTERNAL ;
fs .read_label = FS::EXTERNAL ;
}
if ( ! Glib::find_program_in_path( "xfs_admin" ) .empty() )
{
fs .write_label = FS::EXTERNAL ;
fs .read_uuid = FS::EXTERNAL ;
fs .write_uuid = FS::EXTERNAL ;
}
if ( ! Glib::find_program_in_path( "mkfs.xfs" ) .empty() )
fs .create = GParted::FS::EXTERNAL ;
if ( ! Glib::find_program_in_path( "xfs_repair" ) .empty() )
fs .check = GParted::FS::EXTERNAL ;
//Mounted operations require mount, umount and xfs support in the kernel
if ( ! Glib::find_program_in_path( "mount" ) .empty() &&
! Glib::find_program_in_path( "umount" ) .empty() &&
fs .check &&
Utils::kernel_supports_fs( "xfs" ) )
{
//Grow
if ( ! Glib::find_program_in_path( "xfs_growfs" ) .empty() )
fs .grow = FS::EXTERNAL ;
//Copy using xfsdump, xfsrestore
if ( ! Glib::find_program_in_path( "xfsdump" ) .empty() &&
! Glib::find_program_in_path( "xfsrestore" ) .empty() &&
fs .create )
fs .copy = FS::EXTERNAL ;
}
if ( fs .check )
fs .move = GParted::FS::GPARTED ;
fs .online_read = FS::GPARTED ;
fs .MIN = 32 * MEBIBYTE ;//official minsize = 16MB, but the smallest xfs_repair can handle is 32MB...
return fs ;
}
void xfs::set_used_sectors( Partition & partition )
{
if ( ! Utils::execute_command(
"xfs_db -c 'sb 0' -c 'print blocksize' -c 'print dblocks' -c 'print fdblocks' -r " + partition .get_path(),
output,
error,
true ) )
{
//blocksize
if ( sscanf( output .c_str(), "blocksize = %Ld", &S ) != 1 )
S = -1 ;
//filesystem blocks
index = output .find( "\ndblocks" ) ;
if ( index > output .length() ||
sscanf( output .substr( index ) .c_str(), "\ndblocks = %Ld", &T ) != 1 )
T = -1 ;
//free blocks
index = output .find( "\nfdblocks" ) ;
if ( index > output .length() ||
sscanf( output .substr( index ) .c_str(), "\nfdblocks = %Ld", &N ) != 1 )
N = -1 ;
if ( T > -1 && N > -1 && S > -1 )
{
T = Utils::round( T * ( S / double(partition .sector_size) ) ) ;
N = Utils::round( N * ( S / double(partition .sector_size) ) ) ;
partition .set_sector_usage( T, N ) ;
}
}
else
{
if ( ! output .empty() )
partition .messages .push_back( output ) ;
if ( ! error .empty() )
partition .messages .push_back( error ) ;
}
}
void xfs::read_label( Partition & partition )
{
if ( ! Utils::execute_command( "xfs_db -r -c 'label' " + partition .get_path(), output, error, true ) )
{
partition .set_label( Utils::regexp_label( output, "^label = \"(.*)\"" ) ) ;
}
else
{
if ( ! output .empty() )
partition .messages .push_back( output ) ;
if ( ! error .empty() )
partition .messages .push_back( error ) ;
}
}
bool xfs::write_label( const Partition & partition, OperationDetail & operationdetail )
{
Glib::ustring cmd = "" ;
if( partition .get_label() .empty() )
cmd = String::ucompose( "xfs_admin -L -- %1", partition .get_path() ) ;
else
cmd = String::ucompose( "xfs_admin -L \"%1\" %2", partition .get_label(), partition .get_path() ) ;
return ! execute_command( cmd, operationdetail ) ;
}
void xfs::read_uuid( Partition & partition )
{
if ( ! Utils::execute_command( "xfs_admin -u " + partition .get_path(), output, error, true ) )
{
partition .uuid = Utils::regexp_label( output, "^UUID[[:blank:]]*=[[:blank:]]*(" RFC4122_NONE_NIL_UUID_REGEXP ")" ) ;
}
else
{
if ( ! output .empty() )
partition .messages .push_back( output ) ;
if ( ! error .empty() )
partition .messages .push_back( error ) ;
}
}
bool xfs::write_uuid( const Partition & partition, OperationDetail & operationdetail )
{
return ! execute_command( "xfs_admin -U generate " + partition .get_path(), operationdetail ) ;
}
bool xfs::create( const Partition & new_partition, OperationDetail & operationdetail )
{
return ! execute_command( "mkfs.xfs -f -L \"" + new_partition.get_label() +
"\" " + new_partition.get_path(),
operationdetail,
false,
true );
}
bool xfs::resize( const Partition & partition_new, OperationDetail & operationdetail, bool fill_partition )
{
bool success = true ;
Glib::ustring mount_point = mk_temp_dir( "", operationdetail ) ;
if ( mount_point .empty() )
return false ;
success &= ! execute_command( "mount -v -t xfs " + partition_new .get_path() + " " + mount_point,
operationdetail, true ) ;
if ( success )
{
success &= ! execute_command( "xfs_growfs " + mount_point, operationdetail, true ) ;
success &= ! execute_command( "umount -v " + mount_point, operationdetail, true ) ;
}
rm_temp_dir( mount_point, operationdetail ) ;
return success ;
}
bool xfs::copy( const Partition & src_part,
Partition & dest_part,
OperationDetail & operationdetail )
{
bool success = true ;
success &= ! execute_command( "mkfs.xfs -f " + dest_part.get_path(), operationdetail, true, true );
if ( ! success )
return false ;
Glib::ustring src_mount_point = mk_temp_dir( "src", operationdetail ) ;
if ( src_mount_point .empty() )
return false ;
Glib::ustring dest_mount_point = mk_temp_dir( "dest", operationdetail ) ;
if ( dest_mount_point .empty() )
{
rm_temp_dir( src_mount_point, operationdetail ) ;
return false ;
}
success &= ! execute_command( "mount -v -t xfs -o noatime,ro " + src_part.get_path() +
" " + src_mount_point, operationdetail, true ) ;
if ( success )
{
success &= ! execute_command( "mount -v -t xfs " + dest_part.get_path() +
" " + dest_mount_point, operationdetail, true ) ;
if ( success )
{
success &= ! execute_command( "sh -c 'xfsdump -J - " + src_mount_point +
" | xfsrestore -J - " + dest_mount_point + "'",
operationdetail, true, true );
success &= ! execute_command( "umount -v " + dest_part.get_path(), operationdetail, true ) ;
}
success &= ! execute_command( "umount -v " + src_part.get_path(), operationdetail, true ) ;
}
rm_temp_dir( dest_mount_point, operationdetail ) ;
rm_temp_dir( src_mount_point, operationdetail ) ;
return success ;
}
bool xfs::check_repair( const Partition & partition, OperationDetail & operationdetail )
{
return ! execute_command( "xfs_repair -v " + partition .get_path(), operationdetail,
false, true );
}
} //GParted