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/* ---------------------------------------------------------------------------
* couriergrey - Greylisting filter for Courier
* Copyright (C) 2007-2012 Matthias Wimmer <m@tthias.eu>
*
* 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 Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
* ---------------------------------------------------------------------------
* vi: sw=4:tabstop=8
*/
#ifndef DATABASE_H
#define DATABASE_H
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <string>
#include <list>
#include <gdbm.h>
#ifndef N_
# define N_(n) (n)
#endif
namespace couriergrey {
/**
* class storing the learned data
*/
class database {
public:
/**
* create a database instance
*/
database();
/**
* destruct a database instance
*/
~database();
/**
* fetch a value from a key
*/
std::string fetch(std::string const& key) const;
/**
* store a value to a key
*/
void store(std::string const& key, std::string const& value);
/**
* delete the value of a key
*
* @param key the key to delete
*/
void del(std::string const& key);
/**
* reorganize (compact) the database
*/
void reorganize();
/**
* get all the keys in the database
*/
std::list<std::string> get_keys();
private:
/**
* The GDMB database handle
*/
::GDBM_FILE db;
};
}
#endif // DATABASE_H
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