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/*
Copyright (C) 2000-2007 Paul Davis
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef __pbd_destructible_h__
#define __pbd_destructible_h__
#include <boost/signals2.hpp>
namespace PBD {
class Destructible {
public:
Destructible() : refs_dropped (false){}
virtual ~Destructible () {}
boost::signals2::signal<void ()> GoingAway;
void drop_references () { if (!refs_dropped) { GoingAway(); } refs_dropped = true; }
private:
bool refs_dropped;
};
}
#endif /* __pbd_destructible_h__ */
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