Disk ARchive: trontextual.hpp Source File

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trontextual.hpp
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1/*********************************************************************/
2// dar - disk archive - a backup/restoration program
3// Copyright (C) 2002-2026 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:
59 contextual *ref;
60
61 void init(generic_file *f);
62 };
63
65}
66
67#endif
libdar::generic_file
this is the interface class from which all other data transfer classes inherit
Definition generic_file.hpp:77
libdar::infinint
the arbitrary large positive integer class
Definition real_infinint.hpp:62
libdar::label
manage label data structure used in archive slice headers
Definition label.hpp:43
libdar::tronc::tronc
tronc(generic_file *f, const infinint &offset, const infinint &size, bool own_f=false)
constructor
libdar::trontextual::is_an_old_start_end_archive
virtual bool is_an_old_start_end_archive() const override
returns whether the archive is a old archive (format < 8)
Definition trontextual.hpp:55
libdar::trontextual::ref
contextual * ref
this is just a pointer to data owned by the inherited class tronc part of this object
Definition trontextual.hpp:59
libdar::trontextual::get_data_name
virtual const label & get_data_name() const override
obtain the data_name of the archive (label associated with the archive's data)
Definition trontextual.hpp:56
contextual.hpp
class contextual adds the information of phases in the generic_file
generic_file.hpp
class generic_file is defined here as well as class fichier
libdar::gf_mode
gf_mode
generic_file openning modes
Definition gf_mode.hpp:44
infinint.hpp
switch module to limitint (32 ou 64 bits integers) or infinint
my_config.h
include macro defined by the configure script and some specific additional ones
libdar
libdar namespace encapsulate all libdar symbols
Definition archive.hpp:47
tronc.hpp
defines a limited segment over another generic_file.