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Enhanced dmraid partition deletion 

svn path=/trunk/; revision=1098
This commit is contained in:
Curtis Gedak 2009-03-16 22:59:50 +00:00
parent eda5bf16aa
commit 946b462757
3 changed files with 60 additions and 27 deletions
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4
ChangeLog
View File

@ -1,5 +1,9 @@
2009-03-16 Curtis Gedak <gedakc@gmail.com>
* include/DMRaid.h: Enhanced dmraid partition deletion.
- Handle partition names with or without a 'p' between the
device name and the partition number.
* include/GParted_Core.h,
src/GParted_Core.cc: Improved swap and dmraid mountpoint detection.

4
include/DMRaid.h
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@ -48,10 +48,11 @@ public:
~DMRaid() ;
bool is_dmraid_supported() ;
bool is_dmraid_device( const Glib::ustring & dev_path ) ;
int execute_command( const Glib::ustring & command, OperationDetail & operationdetail ) ;
void get_devices( std::vector<Glib::ustring> & dmraid_devices ) ;
Glib::ustring get_dmraid_name( const Glib::ustring & dev_path ) ;
Glib::ustring get_dmraid_prefix( const Glib::ustring & dev_path ) ;
int execute_command( const Glib::ustring & command, OperationDetail & operationdetail ) ;
int get_partition_number( const Glib::ustring & partition_name ) ;
bool create_dev_map_entries( const Partition & partition, OperationDetail & operationdetail ) ;
bool create_dev_map_entries( const Glib::ustring & dev_path ) ;
bool delete_affected_dev_map_entries( const Partition & partition, OperationDetail & operationdetail ) ;
@ -65,6 +66,7 @@ private:
void set_commands_found() ;
void get_dmraid_dir_entries( const Glib::ustring & dev_path, std::vector<Glib::ustring> & dir_list ) ;
void get_affected_dev_map_entries( const Partition & partition, std::vector<Glib::ustring> & affected_entries ) ;
void get_partition_dev_map_entries( const Partition & partition, std::vector<Glib::ustring> & partition_entries ) ;
static bool dmraid_cache_initialized ;
static bool dmraid_found ;
static bool dmsetup_found ;

65
src/DMRaid.cc
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@ -187,6 +187,12 @@ void DMRaid::get_dmraid_dir_entries( const Glib::ustring & dev_path, std::vector
}
}
int DMRaid::get_partition_number( const Glib::ustring & partition_name )
{
Glib::ustring dmraid_name = get_dmraid_name( partition_name ) ;
return std::atoi( Utils::regexp_label( partition_name, dmraid_name + "p?([0-9]+)" ) .c_str() ) ;
}
bool DMRaid::create_dev_map_entries( const Partition & partition, OperationDetail & operationdetail )
{
//Create all missing dev mapper entries for a specified device.
@ -234,35 +240,48 @@ void DMRaid::get_affected_dev_map_entries( const Partition & partition, std::vec
{
//Build list of affected /dev/mapper entries when a partition is to be deleted.
Glib::ustring dmraid_name = get_dmraid_name( partition .device_path ) ;
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
std::vector<Glib::ustring> dir_list ;
get_dmraid_dir_entries( partition .device_path, dir_list );
//All partition numbers equal to the number of the partition to be deleted
// will be affected.
// Also, if the partition is inside an extended partition, then all logical
// partition numbers greater than the number of the partition to be deleted
// will be affected.
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
int dir_part_num = get_partition_number( dir_list[k] ) ;
if ( dir_part_num == partition .partition_number ||
( partition .inside_extended && dir_part_num > partition .partition_number )
)
affected_entries .push_back( dir_list[k] ) ;
}
}
}
void DMRaid::get_partition_dev_map_entries( const Partition & partition, std::vector<Glib::ustring> & partition_entries )
{
//Build list of all /dev/mapper entries for a partition.
//Retrieve list of matching directory entries
std::vector<Glib::ustring> dir_list ;
get_dmraid_dir_entries( partition .device_path, dir_list );
//Retrieve all partition numbers equal to the number of the partition.
Glib::ustring dmraid_name = get_dmraid_name( partition .device_path ) ;
for ( unsigned int k=0; k < dir_list .size(); k++ )
{
if ( Utils::regexp_label( dir_list[k], "^(" + dmraid_name + ")" ) == dmraid_name )
{
int dir_part_num = get_partition_number( dir_list[k] ) ;
if ( dir_part_num == partition .partition_number )
partition_entries .push_back( dir_list[k] ) ;
}
}
}
bool DMRaid::delete_affected_dev_map_entries( const Partition & partition, OperationDetail & operationdetail )
@ -293,14 +312,22 @@ bool DMRaid::delete_affected_dev_map_entries( const Partition & partition, Opera
bool DMRaid::delete_dev_map_entry( const Partition & partition, OperationDetail & operationdetail )
{
//Delete a single dev mapper entry
//Delete a single partition which may be represented by multiple dev mapper entries
bool exit_status = true ; //assume success
/*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() ) ;
std::vector<Glib::ustring> partition_entries ;
get_partition_dev_map_entries( partition, partition_entries ) ;
for ( unsigned int k = 0; k < partition_entries .size(); k++ )
{
Glib::ustring command = "dmsetup remove " + partition_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 ) ;