filesystem_backup.hpp

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/*********************************************************************/
// dar - disk archive - a backup/restoration program
// Copyright (C) 2002-2024 Denis Corbin
//
// 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, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// to contact the author, see the AUTHOR file
/*********************************************************************/
 
 
 
#ifndef FILESYSTEM_BACKUP_HPP
#define FILESYSTEM_BACKUP_HPP
 
#include "../my_config.h"
 
extern "C"
{
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
 
#if HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
} // end extern "C"
 
#include <deque>
#include "infinint.hpp"
#include "etage.hpp"
#include "cat_entree.hpp"
#include "filesystem_hard_link_read.hpp"
 
#include <set>
 
namespace libdar
{
 
 
    class filesystem_backup : public filesystem_hard_link_read
    {
    public:
        filesystem_backup(const std::shared_ptr<user_interaction> & dialog,
              const path &root,
              bool x_info_details,
              const mask & x_ea_mask,
              bool check_no_dump_flag,
              bool alter_atime,
              bool furtive_read_mode,
              bool x_cache_directory_tagging,
              infinint & root_fs_device,
              bool x_ignore_unknown,
              const fsa_scope & scope);
        filesystem_backup(const filesystem_backup & ref) = delete;
    filesystem_backup(filesystem_backup && ref) = delete;
        filesystem_backup & operator = (const filesystem_backup & ref) = delete;
    filesystem_backup & operator = (filesystem_backup && ref) = delete;
        ~filesystem_backup() { detruire(); };
 
        void reset_read(infinint & root_fs_device);
        bool read(cat_entree * & ref, infinint & errors, infinint & skipped_dump);
        void skip_read_to_parent_dir();
            //  continue reading in parent directory and
            // ignore all entry not yet read of current directory
    private:
 
        path *fs_root;           //< filesystem's root to consider
        bool info_details;       //< detailed information returned to the user
    mask *ea_mask;           //< mask defining the EA to consider
        bool no_dump_check;      //< whether to check against the nodump flag presence
    bool alter_atime;        //< whether to set back atime or not
    bool furtive_read_mode;  //< whether to use furtive read mode (if true, alter_atime is ignored)
    bool cache_directory_tagging; //< whether to consider cache directory taggin standard
        path *current_dir;       //< needed to translate from an hard linked inode to an  already allocated object
        std::deque<etage> pile;  //< to store the contents of a directory
    bool ignore_unknown;     //< whether to ignore unknown inode types
 
        void detruire();
    };
 
 
} // end of namespace
 
#endif