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semaphore.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
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., 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
25
26 #ifndef SEMAPHORE_HPP
27 #define SEMAPHORE_HPP
28
29 #include "../my_config.h"
30
31 #include "mem_ui.hpp"
32 #include "mask.hpp"
33 #include "catalogue.hpp"
34 #include "on_pool.hpp"
35
36 namespace libdar
37 {
38
41
43
64
65
66 class semaphore : public mem_ui, public on_pool
67 {
68 public:
69
71
78 semaphore(user_interaction & dialog,
79 const std::string & backup_hook_file_execute,
80 const mask & backup_hook_file_mask);
81
83 semaphore(const semaphore & ref) : mem_ui(ref) { copy_from(ref); };
84
86 semaphore & operator = (const semaphore & ref) { detruit(); copy_from(ref); return *this; };
87
89 ~semaphore() { detruit(); };
90
92
101 void raise(const std::string & path,
102 const cat_entree *object,
103 bool data_to_save);
104
106 void lower();
107
108 private:
109 infinint count; //< is the number of subdirectories currently saved in the last directory that matched the mask
110 std::string chem; //< path of the file that has to be call in the "end" context when count will drop to zero
111 std::string filename; //< filename of that same file
112 infinint uid; //< UID of that same file
113 infinint gid; //< GID of that same file
114 unsigned char sig; //< object type
115 std::string execute; //< command to execute
116 const mask *match; //< for which file to run the execute command
117
118 std::string build_string(const std::string & context);
119 void copy_from(const semaphore & ref);
120 void detruit();
121 };
122
124
125 } // end of namespace
126
127 #endif
libdar::on_pool
Definition: on_pool.hpp:52
libdar::semaphore
class semaphore
Definition: semaphore.hpp:66
libdar::mask
the generic class, parent of all masks
Definition: mask.hpp:61
mem_ui.hpp
class mem_ui definition. This class is to be used as parent class to handle user_interaction object m...
libdar::semaphore::~semaphore
~semaphore()
destructor
Definition: semaphore.hpp:89
libdar::semaphore::semaphore
semaphore(user_interaction &dialog, const std::string &backup_hook_file_execute, const mask &backup_hook_file_mask)
constructor
libdar::user_interaction
This is a pure virtual class that is used by libdar when interaction with the user is required...
Definition: user_interaction.hpp:98
libdar::semaphore::semaphore
semaphore(const semaphore &ref)
copy constructor
Definition: semaphore.hpp:83
mask.hpp
here lies a collection of mask classes
libdar::semaphore::lower
void lower()
to tell that the backup is completed for the last "raised" entry.
libdar::mem_ui
class mem_ui to keep a copy of a user_interaction object
Definition: mem_ui.hpp:53
on_pool.hpp
this is the base class of object that can be allocated on a memory pool
libdar::infinint
the arbitrary large positive integer class
Definition: real_infinint.hpp:59
libdar::cat_entree
the root class from all other inherite for any entry in the catalogue
Definition: cat_entree.hpp:85
libdar
libdar namespace encapsulate all libdar symbols
Definition: archive.hpp:47
libdar::semaphore::operator=
semaphore & operator=(const semaphore &ref)
assignment operator
Definition: semaphore.hpp:86
catalogue.hpp
here is defined the many classed which is build of the catalogue
libdar::path
the class path is here to manipulate paths in the Unix notation: using'/'
Definition: path.hpp:50