Disk ARchive  2.5.3
Full featured and portable backup and archiving tool
fichier_global.hpp
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1 /*********************************************************************/
2 // dar - disk archive - a backup/restoration program
3 // Copyright (C) 2002-2052 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
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18 //
19 // to contact the author : http://dar.linux.free.fr/email.html
20 /*********************************************************************/
21 
27 
29 
30 #ifndef FICHIER_GLOBAL_HPP
31 #define FICHIER_GLOBAL_HPP
32 
33 
34 #include "../my_config.h"
35 
36 extern "C"
37 {
38 #if HAVE_UNISTD_H
39 #include <unistd.h>
40 #endif
41 } // end extern "C"
42 
43 #include "integers.hpp"
44 #include "thread_cancellation.hpp"
45 #include "label.hpp"
46 #include "crc.hpp"
47 #include "user_interaction.hpp"
48 #include "mem_ui.hpp"
49 
50 #include <string>
51 
52 namespace libdar
53 {
54 
57 
58  class fichier_global : public generic_file, public thread_cancellation, public mem_ui
59  {
60  public :
61  enum advise
62  {
63  advise_normal, //< no advise given by the application
64  advise_sequential, //< application expect to read the data sequentially
65  advise_random, //< application expect to read the data in random order
66  advise_noreuse, //< application does not expect to read the data more than once
67  advise_willneed, //< application expect to read the data again in near future
68  advise_dontneed //< application will not read the data in near future
69  };
70 
75  fichier_global(const user_interaction & dialog, gf_mode mode): generic_file(mode), mem_ui(dialog) {};
76  fichier_global(const fichier_global & ref) : generic_file(ref), thread_cancellation(ref), mem_ui(ref) {};
77 
78  // default assignment operator is fine here
79  // default destructor is fine too here
80 
82  virtual void change_ownership(const std::string & user, const std::string & group) = 0;
83 
85  virtual void change_permission(U_I perm) = 0;
86 
88  virtual infinint get_size() const = 0;
89 
91  virtual void fadvise(advise adv) const = 0;
92 
93  protected :
104  virtual U_I fichier_global_inherited_write(const char *a, U_I size) = 0;
105 
106 
117  virtual bool fichier_global_inherited_read(char *a, U_I size, U_I & read, std::string & message) = 0;
118 
119  private:
120 
121  // inherited from generic_file class and relocated as private methods
122  void inherited_write(const char *a, U_I size);
123  U_I inherited_read(char *a, U_I size);
124  };
125 
126 
128 
129 } // end of namespace
130 
131 #endif
class mem_ui definition. This class is to be used as parent class to handle user_interaction object m...
are defined here basic integer types that tend to be portable
class crc definition, used to handle Cyclic Redundancy Checks
define the datastructure "label" used to identify slice membership to an archive
gf_mode
generic_file openning modes
defines the interaction between libdar and the user.Three classes are defined
to be able to cancel libdar operation while running in a given thread.the class thread_cancellation i...
mem_ui(const user_interaction &dialog)
constructor
Definition: mem_ui.hpp:62
generic_file(gf_mode m)
main constructor
thread_cancellation()
the constructor
libdar namespace encapsulate all libdar symbols
Definition: archive.hpp:47