semaphore.hpp

Go to the documentation of this file.

/*********************************************************************/
// dar - disk archive - a backup/restoration program
// Copyright (C) 2002-2052 Denis Corbin
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
//
// to contact the author : http://dar.linux.free.fr/email.html
/*********************************************************************/


#ifndef SEMAPHORE_HPP
#define SEMAPHORE_HPP

#include "../my_config.h"

#include "mem_ui.hpp"
#include "mask.hpp"
#include "catalogue.hpp"

namespace libdar
{





    class semaphore : public mem_ui
    {
    public:


        semaphore(user_interaction & dialog,
                  const std::string & backup_hook_file_execute,
                  const mask & backup_hook_file_mask);

        semaphore(const semaphore & ref) : mem_ui(ref.get_ui()) { copy_from(ref); };

        semaphore & operator = (const semaphore & ref) { detruit(); copy_from(ref); return *this; };

        ~semaphore() { detruit(); };


        void raise(const std::string & path,
                   const entree *object,
                   bool data_to_save);

        void lower();

#ifdef LIBDAR_SPECIAL_ALLOC
        USE_SPECIAL_ALLOC(semaphore);
#endif
    private:
        infinint count;       //< is the number of subdirectories currently saved in the last directory that matched the mask
        std::string chem;     //< path of the file that has to be call in the "end" context when count will drop to zero
        std::string filename; //< filename of that same file
        infinint uid;         //< UID of that same file
        infinint gid;         //< GID of that same file
        std::string execute;  //< command to execute
        const mask *match;    //< for which file to run the execute command

        std::string build_string(const std::string & context);
        void copy_from(const semaphore & ref);
        void detruit();
    };


} // end of namespace

#endif