gparted/include/FileSystem.h

173 lines
6.8 KiB
C++

/* 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 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/>.
*/
#ifndef GPARTED_FILESYSTEM_H
#define GPARTED_FILESYSTEM_H
#include "Operation.h"
#include "Partition.h"
#include "PipeCapture.h"
#include "Utils.h"
#include <fstream>
#include <sys/stat.h>
#include <sigc++/slot.h>
namespace GParted
{
// Minimum and maximum file system size limits
struct FS_Limits
{
Byte_Value min_size; // 0 => no limit, +ve => limit defined. (As implemented by)
Byte_Value max_size; // -----------------"----------------- (code using these.)
FS_Limits() : min_size( 0 ) , max_size( 0 ) {};
FS_Limits( Byte_Value min, Byte_Value max ) : min_size( min ), max_size( max ) {};
};
// Struct to store file system support information
struct FS
{
enum Support
{
NONE = 0,
GPARTED = 1,
LIBPARTED = 2,
EXTERNAL = 3
};
FSType filesystem;
Support busy; // How to determine if partition/file system is busy
Support read; // Can and how to read sector usage while inactive
Support read_label;
Support write_label;
Support read_uuid;
Support write_uuid;
Support create;
Support create_with_label; // Can and how to format file system with label
Support grow;
Support shrink;
Support move; // start point and endpoint
Support check; // Some check tool available?
Support copy;
Support remove;
Support online_read; // Can and how to read sector usage while active
Support online_grow;
Support online_shrink;
FS( FSType fstype = FS_UNKNOWN ) : filesystem( fstype )
{
busy = read = read_label = write_label = read_uuid = write_uuid = create =
create_with_label = grow = shrink = move = check = copy = remove = online_read =
online_grow = online_shrink = NONE;
}
};
enum ExecFlags
{
EXEC_NONE = 1 << 0,
EXEC_CHECK_STATUS = 1 << 1, // Set the status of the command in the operation
// details based on the exit status being zero or
// non-zero. Must either use this flag when calling
// ::execute_command() or call ::set_status()
// afterwards.
EXEC_CANCEL_SAFE = 1 << 2,
EXEC_PROGRESS_STDOUT = 1 << 3, // Run progress tracking callback after reading new
// data on stdout from command.
EXEC_PROGRESS_STDERR = 1 << 4, // Same but for stderr.
EXEC_PROGRESS_TIMED = 1 << 5 // Run progress tracking callback periodically.
};
inline ExecFlags operator|( ExecFlags lhs, ExecFlags rhs )
{ return static_cast<ExecFlags>( static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs) ); }
inline ExecFlags operator&( ExecFlags lhs, ExecFlags rhs )
{ return static_cast<ExecFlags>( static_cast<unsigned>(lhs) & static_cast<unsigned>(rhs) ); }
class FileSystem
{
public:
FileSystem() ;
virtual ~FileSystem() {}
virtual const Glib::ustring & get_custom_text( CUSTOM_TEXT ttype, int index = 0 ) const;
static const Glib::ustring & get_generic_text( CUSTOM_TEXT ttype, int index = 0 );
virtual FS get_filesystem_support() = 0 ;
virtual FS_Limits get_filesystem_limits( const Partition & partition ) const { return fs_limits; };
virtual bool is_busy( const Glib::ustring & path ) { return false ; } ;
virtual void set_used_sectors( Partition & partition ) {};
virtual void read_label( Partition & partition ) {};
virtual bool write_label( const Partition & partition, OperationDetail & operationdetail ) { return false; };
virtual void read_uuid( Partition & partition ) {};
virtual bool write_uuid( const Partition & partition, OperationDetail & operationdetail ) { return false; };
virtual bool create( const Partition & new_partition, OperationDetail & operationdetail ) { return false; };
virtual bool resize( const Partition & partition_new,
OperationDetail & operationdetail,
bool fill_partition ) { return false; };
virtual bool move( const Partition & partition_new
, const Partition & partition_old
, OperationDetail & operationdetail
) { return false; };
virtual bool copy( const Partition & src_part,
Partition & dest_part,
OperationDetail & operationdetail ) { return false; };
virtual bool check_repair( const Partition & partition, OperationDetail & operationdetail ) { return false; };
virtual bool remove( const Partition & partition, OperationDetail & operationdetail ) { return true; };
protected:
typedef sigc::slot<void, OperationDetail *> StreamSlot;
typedef sigc::slot<bool, OperationDetail *> TimedSlot;
int execute_command( const Glib::ustring & command, OperationDetail & operationdetail,
ExecFlags flags = EXEC_NONE );
int execute_command( const Glib::ustring & command, OperationDetail & operationdetail,
ExecFlags flags,
StreamSlot stream_progress_slot );
int execute_command( const Glib::ustring & command, OperationDetail & operationdetail,
ExecFlags flags,
TimedSlot timed_progress_slot );
void set_status( OperationDetail & operationdetail, bool success );
void execute_command_eof();
Glib::ustring mk_temp_dir( const Glib::ustring & infix, OperationDetail & operationdetail ) ;
void rm_temp_dir( const Glib::ustring dir_name, OperationDetail & operationdetail ) ;
FS_Limits fs_limits; // File system minimum and maximum size limits. In derived
// classes either assign fixed values in get_filesystem_support()
// or implement get_filesystem_limits() for dynamic values.
//those are used in several places..
Glib::ustring output, error ;
Sector T, N, S ; //File system [T]otal num of blocks, [N]um of free (or used) blocks, block [S]ize
int exit_status ;
private:
int execute_command_internal( const Glib::ustring & command, OperationDetail & operationdetail,
ExecFlags flags,
StreamSlot stream_progress_slot,
TimedSlot timed_progress_slot );
void store_exit_status( GPid pid, int status );
bool running;
int pipecount;
};
} //GParted
#endif /* GPARTED_FILESYSTEM_H */