Disk ARchive  2.5.5
Full featured and portable backup and archiving tool
label.hpp
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2 // dar - disk archive - a backup/restoration program
3 // Copyright (C) 2002-2052 Denis Corbin
4 //
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21 
25 
26 #ifndef LABEL_HPP
27 #define LABEL_HPP
28 
29 #include "../my_config.h"
30 
31 #include "integers.hpp"
32 #include "generic_file.hpp"
33 #include "on_pool.hpp"
34 
35 namespace libdar
36 {
37 
40 
41  class label : public on_pool
42  {
43  public:
44  label(); // builds a label equal to 'zero'
45  label(const label & ref) { copy_from(ref); };
46  const label & operator = (const label & ref) { copy_from(ref); return *this; };
47 
48  bool operator == (const label & ref) const;
49  bool operator != (const label & ref) const { return ! ((*this) == ref); };
50 
51  void clear();
52  bool is_cleared() const;
53 
54  void generate_internal_filename();
55 
56  void read(generic_file & f);
57  void dump(generic_file & f) const;
58 
59  void invert_first_byte() { val[0] = ~val[0]; };
60 
61  // avoid using these two calls, only here for backward compatibility
62  // where the cost to move to object is really too heavy than
63  // sticking with an char array.
64  U_I size() const { return LABEL_SIZE; };
65  char *data() { return (char *)&val; };
66  const char *data() const { return (char *)&val; };
67 
68  static U_I common_size() { return LABEL_SIZE; };
69 
70  private:
71  static const U_I LABEL_SIZE = 10;
72 
73  char val[LABEL_SIZE];
74 
75  void copy_from(const label & ref);
76  };
77 
78 
79  extern const label label_zero;
80 
82 
83 } // end of namespace
84 
85 #endif
are defined here basic integer types that tend to be portable
class generic_file is defined here as well as class fichierthe generic_file interface is widely used ...
this is the base class of object that can be allocated on a memory pool
libdar namespace encapsulate all libdar symbols
Definition: archive.hpp:47