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/**
* $Id$
* ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
*
* 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. The Blender
* Foundation also sells licenses for use in proprietary software under
* the Blender License. See http://www.blender.org/BL/ for information
* about this.
*
* 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.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*
* The Original Code is: all of this file.
*
* Contributor(s): none yet.
*
* ***** END GPL/BL DUAL LICENSE BLOCK *****
*/
/**
* $Id$
* Copyright (C) 2001 NaN Technologies B.V.
* Interface for C access to functionality relating to shared objects in the foundation library.
* @author Maarten Gribnau
* @date June 17, 2001
*/
#ifndef _H_MEM_REF_COUNTED_C_API
#define _H_MEM_REF_COUNTED_C_API
/** A pointer to a private object. */
typedef struct MEM_TOpaqueObject* MEM_TObjectPtr;
/** A pointer to a shared object. */
typedef MEM_TObjectPtr MEM_TRefCountedObjectPtr;
#ifdef __cplusplus
extern "C" {
#endif
/**
* A shared object in an object with reference counting.
* When a shared object is ceated, it has reference count == 1.
* If the the reference count of a shared object reaches zero, the object self-destructs.
* The default constrcutor and destructor of this object have been made protected on purpose.
* This disables the creation and disposal of shared objects on the stack.
*/
/**
* Returns the reference count of this object.
* @param shared The object to query.
* @return The current reference count.
*/
extern int MEM_RefCountedGetRef(MEM_TRefCountedObjectPtr shared);
/**
* Increases the reference count of this object.
* @param shared The object to query.
* @return The new reference count.
*/
extern int MEM_RefCountedIncRef(MEM_TRefCountedObjectPtr shared);
/**
* Decreases the reference count of this object.
* If the the reference count reaches zero, the object self-destructs.
* @param shared The object to query.
* @return The new reference count.
*/
extern int MEM_RefCountedDecRef(MEM_TRefCountedObjectPtr shared);
#ifdef __cplusplus
}
#endif
#endif // _H_MEM_REF_COUNTED_C_API
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