gparted/include/DMRaid.h

93 lines
3.4 KiB
C++

/* Copyright (C) 2009, 2010, 2011 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 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/>.
*/
/* READ THIS!
* This class was created in an effort to reduce the complexity of the
* GParted_Core class.
* This class provides support for motherboard based RAID devices, also know
* as Fake RAID.
* Static elements are used in order to reduce the disk accesses required to
* load the data structures upon each initialization of the class.
*/
#ifndef GPARTED_DMRAID_H
#define GPARTED_DMRAID_H
#include "Utils.h"
#include "BlockSpecial.h"
#include "Partition.h"
#include "OperationDetail.h"
#include <glibmm/ustring.h>
#include <vector>
namespace GParted
{
struct DMRaid_Member
{
BlockSpecial member;
Glib::ustring array;
};
class DMRaid
{
public:
DMRaid() ;
DMRaid( const bool & do_refresh ) ;
~DMRaid() ;
bool is_dmraid_supported() ;
bool is_dmraid_device( const Glib::ustring & dev_path ) ;
void get_devices( std::vector<Glib::ustring> & dmraid_devices ) ;
Glib::ustring get_dmraid_name( const Glib::ustring & dev_path ) ;
Glib::ustring make_path_dmraid_compatible( Glib::ustring partition_path ) ;
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 ) ;
bool purge_dev_map_entries( const Glib::ustring & dev_path ) ;
bool update_dev_map_entry( const Partition & partition, OperationDetail & operationdetail ) ;
bool is_member(const Glib::ustring& member_path);
bool is_member_active(const Glib::ustring& member_path);
const Glib::ustring& get_array(const Glib::ustring& member_path);
private:
void load_dmraid_cache() ;
void set_commands_found() ;
int execute_command(const Glib::ustring& command, OperationDetail& operationdetail);
void get_dmraid_dir_entries( const Glib::ustring & dev_path, std::vector<Glib::ustring> & dir_list ) ;
int get_partition_number(const Glib::ustring& partition_name);
Glib::ustring get_udev_dm_name(const Glib::ustring& dev_path);
bool delete_dev_map_entry(const Partition& partition, OperationDetail& operationdetail);
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 std::vector<Glib::ustring> lookup_dmraid_members(const Glib::ustring& array);
static const DMRaid_Member& get_cache_entry_by_member(const Glib::ustring& member_path);
static bool dmraid_cache_initialized ;
static bool dmraid_found ;
static bool dmsetup_found ;
static bool udevadm_found ;
static std::vector<Glib::ustring> dmraid_devices ;
static std::vector<DMRaid_Member> dmraid_member_cache;
};
}//GParted
#endif /* GPARTED_DMRAID_H */