199 lines
7.9 KiB
C++
199 lines
7.9 KiB
C++
/* Copyright (C) 2004 Bart
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* Copyright (C) 2008, 2009, 2010 Curtis Gedak
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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/* READ THIS!!
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* Partition isn't really a partition. It's more like a geometry, a continuous part of the disk.
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* I use it to represent partitions as well as unallocated spaces
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*/
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#ifndef GPARTED_PARTITION_H
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#define GPARTED_PARTITION_H
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#include "Utils.h"
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#include "PartitionVector.h"
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#include <glibmm/ustring.h>
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namespace GParted
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{
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enum PartitionType {
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TYPE_PRIMARY = 0, // Primary partition on a partitioned drive
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TYPE_LOGICAL = 1, // Logical partition on a partitioned drive
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TYPE_EXTENDED = 2, // Extended partition on a partitioned drive
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TYPE_UNALLOCATED = 3, // Unallocated space on a partitioned drive
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TYPE_UNPARTITIONED = 4 // Unpartitioned whole drive
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};
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enum PartitionStatus {
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STAT_REAL = 0, // All other cases. Read from drive or composed by all other operations
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STAT_NEW = 1, // Composed by the Create New dialog, but not yet applied
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STAT_COPY = 2 // Composed by the Paste into New dialog, but not yet applied
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};
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enum PartitionAlignment {
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ALIGN_CYLINDER = 0, //Align to nearest cylinder
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ALIGN_MEBIBYTE = 1, //Align to nearest mebibyte
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ALIGN_STRICT = 2 //Strict alignment - no rounding
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// Indicator if start and end sectors must remain unchanged
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};
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class Partition; // Forward declarations as Partition and PartitionVector are
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class PartitionVector; // mutually recursive classes.
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// References:
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// * Mutually recursive classes
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// http://stackoverflow.com/questions/3410637/mutually-recursive-classes
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// * recursive definition in CPP
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// http://stackoverflow.com/questions/4300420/recursive-definition-in-cpp
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class Partition
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{
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public:
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Partition() ;
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virtual ~Partition();
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virtual Partition * clone() const;
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void Reset() ;
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//simple Set-functions. only for convenience, since most members are public
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void Set( const Glib::ustring & device_path,
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const Glib::ustring & partition,
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int partition_number,
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PartitionType type,
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FSType fstype,
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Sector sector_start,
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Sector sector_end,
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Byte_Value sector_size,
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bool inside_extended,
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bool busy );
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void set_sector_usage( Sector sectors_fs_size, Sector sectors_fs_unused ) ;
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virtual bool sector_usage_known() const;
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virtual Sector estimated_min_size() const;
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virtual Sector get_sectors_used() const;
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virtual Sector get_sectors_unused() const;
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virtual Sector get_sectors_unallocated() const;
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void get_usage_triple( int imax, int & i1, int & i2, int & i3 ) const ;
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virtual void resize( const Partition & new_size );
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void Set_Unallocated( const Glib::ustring & device_path,
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Sector sector_start,
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Sector sector_end,
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Byte_Value sector_size,
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bool inside_extended );
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void set_unpartitioned( const Glib::ustring & device_path,
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const Glib::ustring & partition_path,
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FSType fstype,
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Sector length,
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Byte_Value sector_size,
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bool busy );
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//update partition number (used when a logical partition is deleted)
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void Update_Number( int new_number );
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void set_path( const Glib::ustring & path );
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Byte_Value get_byte_length() const ;
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Sector get_sector_length() const ;
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const Glib::ustring& get_path() const;
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void add_mountpoint( const Glib::ustring & mountpoint );
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void add_mountpoints( const std::vector<Glib::ustring> & mountpoints );
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const Glib::ustring& get_mountpoint() const;
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void clear_mountpoints() ;
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const std::vector<Glib::ustring>& get_mountpoints() const;
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Sector get_sector() const ;
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bool test_overlap( const Partition & partition ) const ;
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bool filesystem_label_known() const;
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const Glib::ustring& get_filesystem_label() const;
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void set_filesystem_label( const Glib::ustring & filesystem_label );
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// Message accessors. Messages are stored locally and accessed globally.
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// Stored locally means the messages are stored in the Partition object to which
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// they are added so push_back_messages() and append_messages() are non-virtual.
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// Accessed globally means that in the case of derived objects which are composed
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// of more that one Partition object, i.e. PartitionLUKS, the messages have to be
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// accessible from all copies within the derived object hierarchy. Hence
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// have_messages(), get_messages() and clear_messages() are virtual to allow for
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// overridden implementations.
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virtual bool have_messages() const { return ! messages.empty(); };
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virtual std::vector<Glib::ustring> get_messages() const { return messages; };
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virtual void clear_messages() { messages.clear(); };
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void push_back_message(const Glib::ustring& msg) { messages.push_back(msg); };
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void append_messages(const std::vector<Glib::ustring>& msgs)
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{ messages.insert( messages.end(), msgs.begin(), msgs.end() ); }
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// Interface to return reference to the Partition object directly containing the
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// file system. Will be overridden in derived PartitionLUKS.
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virtual const Partition & get_filesystem_partition() const { return *this; };
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virtual Partition & get_filesystem_partition() { return *this; };
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virtual const Glib::ustring get_filesystem_string() const
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{ return Utils::get_filesystem_string(fstype); };
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bool operator==( const Partition & partition ) const ;
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bool operator!=( const Partition & partition ) const ;
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static const Glib::ustring get_partition_type_string(PartitionType type);
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//some public members
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Glib::ustring device_path ;
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int partition_number;
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PartitionType type;// UNALLOCATED, PRIMARY, LOGICAL, etc...
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PartitionStatus status; //STAT_REAL, STAT_NEW, etc..
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PartitionAlignment alignment; //ALIGN_CYLINDER, ALIGN_STRICT, etc
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FSType fstype;
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Glib::ustring uuid ;
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Glib::ustring name;
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Sector sector_start;
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Sector sector_end;
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Sector sectors_used;
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Sector sectors_unused;
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Sector sectors_unallocated; //Difference between the size of the partition and the file system
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Sector significant_threshold; //Threshold from intrinsic to significant unallocated sectors
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bool inside_extended;
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bool busy;
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bool fs_readonly; // Is the file system mounted read-only?
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std::vector<Glib::ustring> flags ;
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PartitionVector logicals;
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bool strict_start ; //Indicator if start sector must stay unchanged
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Sector free_space_before ; //Free space preceding partition value
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Byte_Value sector_size ; //Sector size of the disk device needed for converting to/from sectors and bytes.
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Byte_Value fs_block_size; // Block size of of the file system, or -1 when unknown.
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private:
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Partition & operator=( Partition & rhs ); // Not implemented copy assignment operator
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static void get_usage_triple_helper( Sector stot, Sector s1, Sector s2, Sector s3, int imax, int & i1, int & i2, int & i3 ) ;
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Sector calc_significant_unallocated_sectors() const ;
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Glib::ustring path;
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std::vector<Glib::ustring> mountpoints ;
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bool have_filesystem_label;
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Glib::ustring filesystem_label;
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std::vector<Glib::ustring> messages;
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};
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}//GParted
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#endif /* GPARTED_PARTITION_H */
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