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/*
Copyright (C) 2005-2009 Michel de Boer <michel@twinklephone.com>
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
*/
/**
* @file
* Objects with a unique object id.
*/
#ifndef _ID_OBJECT_H
#define _ID_OBJECT_H
#include "threads/mutex.h"
/**
* Object identifier.
*/
typedef unsigned short t_object_id;
/**
* Parent class for objects that need a unique object id.
*/
class t_id_object {
private:
/** Mutex for concurrent object id creation. */
static t_mutex mtx_next_id;
/** Id for the next object. */
static t_object_id next_id;
/** Unique object identifier. */
t_object_id id;
public:
/** Constructor */
t_id_object();
/**
* Get the object id.
* @return Object id.
*/
t_object_id get_object_id();
/**
* Generate a new object identifier. This can be useful
* after making a copy of an object.
*/
void generate_new_id();
};
#endif
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