Disk ARchive 2.7.16
Full featured and portable backup and archiving tool
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trontextual.hpp
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1/*********************************************************************/
2// dar - disk archive - a backup/restoration program
3// Copyright (C) 2002-2024 Denis Corbin
4//
5// This program is free software; you can redistribute it and/or
6// modify it under the terms of the GNU General Public License
7// as published by the Free Software Foundation; either version 2
8// of the License, or (at your option) any later version.
9//
10// This program is distributed in the hope that it will be useful,
11// but WITHOUT ANY WARRANTY; without even the implied warranty of
12// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13// GNU General Public License for more details.
14//
15// You should have received a copy of the GNU General Public License
16// along with this program; if not, write to the Free Software
17// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18//
19// to contact the author, see the AUTHOR file
20/*********************************************************************/
21
25
26#ifndef TRONTEXTUAL_HPP
27#define TRONTEXTUAL_HPP
28
29#include "../my_config.h"
30
31#include "tronc.hpp"
32#include "infinint.hpp"
33#include "generic_file.hpp"
34#include "contextual.hpp"
35
36namespace libdar
37{
38
41
43
44 class trontextual : public tronc, public contextual
45 {
46 public:
47 trontextual(generic_file *f, const infinint & offset, const infinint & size, bool own_f = false);
48 trontextual(generic_file *f, const infinint & offset, const infinint & size, gf_mode mode, bool own_f = false);
49 trontextual(const trontextual & ref) = delete;
50 trontextual(trontextual && ref) noexcept = delete;
51 trontextual & operator = (const trontextual & ref) = delete;
52 trontextual & operator = (trontextual && ref) = delete;
53 ~trontextual() = default;
54
55 virtual bool is_an_old_start_end_archive() const override { if(ref == nullptr) throw SRC_BUG; return ref->is_an_old_start_end_archive(); };
56 virtual const label & get_data_name() const override { if(ref == nullptr) throw SRC_BUG; return ref->get_data_name(); };
57
58 private:
60
61 void init(generic_file *f);
62 };
63
65}
66
67#endif
the contextual class adds the information of phases in the generic_file
virtual const label & get_data_name() const =0
obtain the data_name of the archive (label associated with the archive's data)
virtual bool is_an_old_start_end_archive() const =0
returns whether the archive is a old archive (format < 8)
this is the interface class from which all other data transfer classes inherit
the arbitrary large positive integer class
manage label data structure used in archive slice headers
Definition label.hpp:43
makes a segment of a generic_file appear like a real generic_file
Definition tronc.hpp:44
trontextual class is a contextual class tronc, that's all.
virtual bool is_an_old_start_end_archive() const override
returns whether the archive is a old archive (format < 8)
contextual * ref
this is just a pointer to data owned by the inherited class tronc part of this object
virtual const label & get_data_name() const override
obtain the data_name of the archive (label associated with the archive's data)
class contextual adds the information of phases in the generic_file
class generic_file is defined here as well as class fichier
gf_mode
generic_file openning modes
Definition gf_mode.hpp:44
switch module to limitint (32 ou 64 bits integers) or infinint
include macro defined by the configure script and some specific additional ones
libdar namespace encapsulate all libdar symbols
Definition archive.hpp:47
defines a limited segment over another generic_file.