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did more work on moving 

* include/GParted_Core.h,
  src/GParted_Core.cc: did more work on moving
This commit is contained in:
Bart Hakvoort 2006-06-18 19:27:52 +00:00
parent afa792bf0c
commit 8fecbac1d0
3 changed files with 207 additions and 54 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2006-06-18 Bart Hakvoort <hakvoort@cvs.gnome.org>
* include/GParted_Core.h,
src/GParted_Core.cc: did more work on moving
2006-06-18 Bart Hakvoort <hakvoort@cvs.gnome.org>
* include/GParted_Core.h,

12
include/GParted_Core.h
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@ -91,9 +91,9 @@ private:
const Partition & partition_old,
Partition & partition_new,
std::vector<OperationDetails> & operation_details ) ;
bool move_partition_and_filesystem( const Partition & partition_old,
Partition & partition_new,
std::vector<OperationDetails> & operation_details ) ;
bool move_filesystem( const Partition & partition_old,
Partition & partition_new,
std::vector<OperationDetails> & operation_details ) ;
bool resize( const Device & device,
const Partition & partition_old,
Partition & partition_new,
@ -129,6 +129,12 @@ private:
bool set_partition_type( const Partition & partition,
std::vector<OperationDetails> & operation_details ) ;
bool copy_block( PedDevice * lp_device_src,
PedDevice * lp_device_dst,
Sector offset_src,
Sector offset_dst,
Sector blocksize,
Glib::ustring & error_message ) ;
void set_proper_filesystem( const FILESYSTEM & filesystem, Sector cylinder_size = 0 ) ;
bool wait_for_node( const Glib::ustring & node ) ;
bool erase_filesystem_signatures( const Partition & partition ) ;

244
src/GParted_Core.cc
View File

@ -1031,16 +1031,26 @@ bool GParted_Core::move( const Device & device,
Partition & partition_new,
std::vector<OperationDetails> & operation_details )
{
//FIXME: look very carefully at this function and see where things (like checking and fsmaximizing) are
//missing.
if ( partition_new .get_length() > partition_old .get_length() )
{
//first do the move
Partition temp = partition_new ;
temp .sector_end = partition_new .sector_start + partition_old .get_length() ;
if ( move_partition_and_filesystem( partition_old, temp, operation_details ) )
if ( move_filesystem( partition_old, temp, operation_details ) )
{
//now the partition is moved, we can grow it..
partition_new .sector_start = temp .sector_start ;
return resize( device, temp, partition_new, operation_details ) ;
//now move the partition
if ( resize_partition( partition_old,
temp,
false,
operation_details,
temp .get_length() ) )
{
//now the partition and the filesystem are moved, we can grow it..
partition_new .sector_start = temp .sector_start ;
return resize( device, temp, partition_new, operation_details ) ;
}
}
return false ;
@ -1054,23 +1064,32 @@ bool GParted_Core::move( const Device & device,
{
//now we can move it
partition_new .sector_end = partition_new .sector_start + temp .get_length() -1 ;
return move_partition_and_filesystem( temp, partition_new, operation_details ) ;
return move_filesystem( temp, partition_new, operation_details ) &&
resize_partition( temp,
partition_new,
false,
operation_details,
partition_new .get_length() ) ;
}
return false ;
}
else
return move_partition_and_filesystem( partition_old, partition_new, operation_details ) ;
return move_filesystem( partition_old, partition_new, operation_details ) &&
resize_partition( partition_old,
partition_new,
false,
operation_details,
partition_new .get_length() ) ;
}
bool GParted_Core::move_partition_and_filesystem( const Partition & partition_old,
Partition & partition_new,
std::vector<OperationDetails> & operation_details )
bool GParted_Core::move_filesystem( const Partition & partition_old,
Partition & partition_new,
std::vector<OperationDetails> & operation_details )
{
operation_details .push_back( OperationDetails( _("Moving partition and filesystem.") ) ) ;
//FIXME: add support for dynamic blocksizes..
operation_details .push_back( OperationDetails( _("move filesystem.") ) ) ;
bool succes = false ;
char buf[1024] ;
if ( open_device_and_disk( partition_old .device_path ) )
{
//calculate correct geom voor new location (rounded to cylinder)
@ -1084,10 +1103,10 @@ bool GParted_Core::move_partition_and_filesystem( const Partition & partition_ol
//calculate a new partition just to get a correct geometry
//(we could use lp_partition as it is, but this feels safer)
lp_partition = ped_partition_new( lp_disk,
lp_partition ->type,
lp_partition ->fs_type,
partition_new .sector_start,
partition_new .sector_end ) ;
lp_partition ->type,
lp_partition ->fs_type,
partition_new .sector_start,
partition_new .sector_end ) ;
if ( lp_partition )
{
@ -1115,51 +1134,137 @@ bool GParted_Core::move_partition_and_filesystem( const Partition & partition_ol
close_disk() ;
//do the move..
Sector blocksize = 32 ;
Glib::ustring error_message ;
if ( succes && ped_device_open( lp_device ) )
{
ped_device_sync( lp_device ) ;
//add an empty sub which we will constantly update in the loop
operation_details .back() .sub_details .push_back(
OperationDetails( "", OperationDetails::NONE ) ) ;
if ( partition_new .sector_start < partition_old .sector_start )
for ( Sector t = 0 ; t < partition_old .get_length() ; t++ )
{
Sector t = 0 ;
for ( ; t < partition_old .get_length() - blocksize ; t+=blocksize )
{
if ( ! ped_device_read( lp_device, buf, partition_old .sector_start + t, 1 ) )
std::cout << "read failed" << std::endl ;
if ( ! ped_device_write( lp_device, buf, partition_new .sector_start +t, 1 ) )
std::cout << "write fails" << std::endl ;
if ( t % 1000 == 0 )
std::cout << t << " of " << partition_old .get_length() << " done " << std::endl ;
}
else
for ( Sector t = 0 ; t < partition_old .get_length() ; t++ )
{
if ( ! ped_device_read( lp_device, buf, partition_old .sector_end - t, 1 ) )
std::cout << "read failed" << std::endl ;
if ( ! ped_device_write(
lp_device,
buf,
partition_new .sector_start + partition_old .get_length() -1 - t,
1 ) )
std::cout << "write fails" << std::endl ;
if ( t % 1000 == 0 )
std::cout << t << " of " << partition_old .get_length() << " done " << std::endl ;
if ( ! copy_block( lp_device,
lp_device,
partition_old .sector_start +t,
partition_new .sector_start +t,
blocksize,
error_message ) )
{
succes = false ;
break ;
}
if ( t % (blocksize * 100) == 0 )
{
operation_details .back() .sub_details .back() .progress_text =
String::ucompose( _("%1 of %2 moved"),
Utils::format_size( t +1 ),
Utils::format_size( partition_old .get_length() ) ) ;
operation_details .back() .sub_details .back() .description =
"<i>" +
operation_details .back() .sub_details .back() .progress_text +
"</i>" ;
operation_details .back() .sub_details .back() .fraction =
t / static_cast<double>( partition_old .get_length() ) ;
}
}
//copy the last couple of sectors..
if ( succes )
{
Sector last_sectors = partition_old .get_length() -1 - t + blocksize ;
succes = copy_block( lp_device,
lp_device,
partition_old .sector_start +t,
partition_new .sector_start +t,
last_sectors,
error_message ) ;
}
}
else //move to the right..
{
Sector t = blocksize ;
for ( ; t < partition_old .get_length() - blocksize ; t+=blocksize )
{
if ( ! copy_block( lp_device,
lp_device,
partition_old .sector_start +1 - t,
partition_new .sector_start +1 - t,
blocksize,
error_message ) )
{
succes = false ;
break ;
}
if ( t % (blocksize * 100) == 0 )
{
operation_details .back() .sub_details .back() .progress_text =
String::ucompose( _("%1 of %2 moved"),
Utils::format_size( t +1 ),
Utils::format_size( partition_old .get_length() ) ) ;
operation_details .back() .sub_details .back() .description =
"<i>" +
operation_details .back() .sub_details .back() .progress_text +
"</i>" ;
operation_details .back() .sub_details .back() .fraction =
t / static_cast<double>( partition_old .get_length() ) ;
}
}
//copy the last couple of sectors..
if ( succes )
{
Sector last_sectors = partition_old .get_length() -1 - t + blocksize ;
succes = copy_block( lp_device,
lp_device,
partition_old .sector_start,
partition_new .sector_start,
last_sectors,
error_message ) ;
}
}
//final description
operation_details .back() .sub_details .back() .description =
"<i>" +
String::ucompose( _("%1 of %2 moved"),
Utils::format_size( partition_old .get_length() ),
Utils::format_size( partition_old .get_length() ) ) +
"</i>" ;
//reset fraction to -1 to make room for a new one (or a pulsebar)
operation_details .back() .sub_details .back() .fraction = -1 ;
if( ! succes )
{
if ( ! error_message .empty() )
operation_details .back() .sub_details .push_back(
OperationDetails( error_message, OperationDetails::NONE ) ) ;
if ( ! ped_error .empty() )
operation_details .back() .sub_details .push_back(
OperationDetails( "<i>" + ped_error + "</i>", OperationDetails::NONE ) ) ;
}
ped_device_close( lp_device );
//FIXME: errorhandling needs to be improved!
succes = resize_partition( partition_old,
partition_new,
false,
operation_details,
partition_old .get_length() ) ;
}
close_device_and_disk() ;
}
operation_details .back() .status = succes ? OperationDetails::SUCCES : OperationDetails::ERROR ;
return succes ;
}
@ -1229,13 +1334,22 @@ bool GParted_Core::resize_partition( const Partition & partition_old,
std::vector<OperationDetails> & operation_details,
Sector min_size )
{
operation_details .push_back( OperationDetails( _("resize/move partition") ) ) ;
/*FIXME: try to find fitting descriptions for all situations
if ( partition_new .get_length() < partition_old .get_length() )
operation_details .push_back( OperationDetails( _("shrink partition") ) ) ;
else if ( partition_new .get_length() > partition_old .get_length() )
operation_details .push_back( OperationDetails( _("grow partition") ) ) ;
else if ( partition_new .sector_start != partition_old .sector_start )
operation_details .push_back( OperationDetails( _("move partition") ) ) ;
else
operation_details .push_back(
OperationDetails( _("new and old partition have the same size. continuing anyway") ) ) ;
{
operation_details .push_back( OperationDetails( _("resize/move partition") ) ) ;
operation_details .back() .sub_details .push_back(
"<i>" +
OperationDetails( _("new and old partition have the same size and positition. continuing anyway") ) +
"</i>" ) ;
}*/
operation_details .back() .sub_details .push_back(
OperationDetails(
@ -1560,7 +1674,7 @@ bool GParted_Core::copy_filesystem( const Partition & partition_src,
}
//copy the last couple of sectors..
Sector last_sectors = partition_src .get_length() - t ;
Sector last_sectors = partition_src .get_length() - t ;//FIXME: most likely this is incorrect, look at move_filesystem to see how they do it.
if ( ped_device_read( lp_device_src, buf, partition_src .sector_start + t, last_sectors ) )
{
if ( ped_device_write( lp_device_dest, buf, partition_dest .sector_start + t , last_sectors ) )
@ -1671,6 +1785,34 @@ bool GParted_Core::set_partition_type( const Partition & partition,
operation_details .back() .status = return_value ? OperationDetails::SUCCES : OperationDetails::ERROR ;
return return_value ;
}
bool GParted_Core::copy_block( PedDevice * lp_device_src,
PedDevice * lp_device_dst,
Sector offset_src,
Sector offset_dst,
Sector blocksize,
Glib::ustring & error_message )
{
char buf[blocksize * 512] ;
if ( ! ped_device_read( lp_device_src, buf, offset_src, blocksize ) )
{
error_message =
"<i>" + String::ucompose( _("Error while reading block at sector %1"), offset_src ) + "</i>" ;
return false ;
}
if ( ! ped_device_write( lp_device_dst, buf, offset_dst, blocksize ) )
{
error_message =
"<i>" + String::ucompose( _("Error while writing block at sector %1"), offset_dst ) + "</i>" ;
return false ;
}
return true ;
}
void GParted_Core::set_proper_filesystem( const FILESYSTEM & filesystem, Sector cylinder_size )
{