3 * ***** BEGIN GPL/BL DUAL LICENSE BLOCK *****
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version. The Blender
9 * Foundation also sells licenses for use in proprietary software under
10 * the Blender License. See http://www.blender.org/BL/ for information
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software Foundation,
20 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
23 * All rights reserved.
25 * The Original Code is: all of this file.
27 * Contributor(s): none yet.
29 * ***** END GPL/BL DUAL LICENSE BLOCK *****
35 * Copyright (C) 2001 NaN Technologies B.V.
36 * Interface for C access to functionality relating to shared objects in the foundation library.
37 * @author Maarten Gribnau
41 #ifndef _H_MEM_REF_COUNTED_C_API
42 #define _H_MEM_REF_COUNTED_C_API
44 /** A pointer to a private object. */
45 typedef struct MEM_TOpaqueObject* MEM_TObjectPtr;
46 /** A pointer to a shared object. */
47 typedef MEM_TObjectPtr MEM_TRefCountedObjectPtr;
56 * A shared object in an object with reference counting.
57 * When a shared object is ceated, it has reference count == 1.
58 * If the the reference count of a shared object reaches zero, the object self-destructs.
59 * The default constrcutor and destructor of this object have been made protected on purpose.
60 * This disables the creation and disposal of shared objects on the stack.
64 * Returns the reference count of this object.
65 * @param shared The object to query.
66 * @return The current reference count.
68 extern int MEM_RefCountedGetRef(MEM_TRefCountedObjectPtr shared);
71 * Increases the reference count of this object.
72 * @param shared The object to query.
73 * @return The new reference count.
75 extern int MEM_RefCountedIncRef(MEM_TRefCountedObjectPtr shared);
78 * Decreases the reference count of this object.
79 * If the the reference count reaches zero, the object self-destructs.
80 * @param shared The object to query.
81 * @return The new reference count.
83 extern int MEM_RefCountedDecRef(MEM_TRefCountedObjectPtr shared);
90 #endif // _H_MEM_REF_COUNTED_C_API