Blender V2.61 - r43446

MEM_RefCounted.h

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00001 /*
00002  * ***** BEGIN GPL LICENSE BLOCK *****
00003  *
00004  * This program is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU General Public License
00006  * as published by the Free Software Foundation; either version 2
00007  * of the License, or (at your option) any later version.
00008  *
00009  * This program is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  * GNU General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License
00015  * along with this program; if not, write to the Free Software Foundation,
00016  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
00017  *
00018  * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
00019  * All rights reserved.
00020  *
00021  * The Original Code is: all of this file.
00022  *
00023  * Contributor(s): none yet.
00024  *
00025  * ***** END GPL LICENSE BLOCK *****
00026  */
00027 
00037 #ifndef MEM_REFCOUNTED_H
00038 #define MEM_REFCOUNTED_H
00039 
00052 class MEM_RefCounted {
00053 public:
00057     MEM_RefCounted() : m_refCount(1)
00058     {
00059     }
00060 
00065     inline virtual int getRef() const;
00066 
00071     inline virtual int incRef();
00072 
00078     inline virtual int decRef();
00079 
00080 protected:
00085     virtual ~MEM_RefCounted()
00086     {
00087     }
00088 
00089 protected:
00091     int m_refCount;
00092 };
00093 
00094 
00095 inline int MEM_RefCounted::getRef() const
00096 {
00097     return m_refCount;
00098 }
00099 
00100 inline int MEM_RefCounted::incRef()
00101 {
00102     return ++m_refCount;
00103 }
00104 
00105 inline int MEM_RefCounted::decRef()
00106 {
00107     m_refCount--;
00108     if (m_refCount == 0) {
00109         delete this;
00110         return 0;
00111     }
00112     return m_refCount;
00113 }
00114 
00115 #endif // MEM_REFCOUNTED_H
00116