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livetrax/libs/pbd/pbd/destructible.h
Robin Gareus defc902571
Allow to use Destructible as virtual base class
This is in preparation for a pure-virtual base class for
PluginInsert to expose `DropReferences` in the virtual base.

```
class PlugInsertBase : virtual public PBD::Destructible
class PluginInsert : public Processor, public PlugInsertBase
class Processor : public SessionObject
class SessionObject : public PBD::StatefulDestructible
```
2022-04-14 16:35:02 +02:00

40 lines
1.2 KiB
C++

/*
* Copyright (C) 2006-2015 Paul Davis <paul@linuxaudiosystems.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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __pbd_destructible_h__
#define __pbd_destructible_h__
#include "pbd/signals.h"
#include "pbd/libpbd_visibility.h"
namespace PBD {
class LIBPBD_API Destructible {
public:
virtual ~Destructible () { Destroyed(); }
PBD::Signal0<void> Destroyed;
PBD::Signal0<void> DropReferences;
virtual void drop_references () { DropReferences(); }
};
}
#endif /* __pbd_destructible_h__ */