Irrlicht 3D Engine: IReferenceCounted.h Source File

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IReferenceCounted.h
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    00001 // Copyright (C) 2002-2012 Nikolaus Gebhardt
    00002 // This file is part of the "Irrlicht Engine".
    00003 // For conditions of distribution and use, see copyright notice in irrlicht.h
    00004
    00005 #ifndef __I_IREFERENCE_COUNTED_H_INCLUDED__
    00006 #define __I_IREFERENCE_COUNTED_H_INCLUDED__
    00007
    00008 #include "irrTypes.h"
    00009
    00010 namespace irr
    00011 {
    00012
    00014
    00041     class IReferenceCounted
    00042     {
    00043     public:
    00044
    00046         IReferenceCounted()
    00047             : DebugName(0), ReferenceCounter(1)
    00048         {
    00049         }
    00050
    00052         virtual ~IReferenceCounted()
    00053         {
    00054         }
    00055
    00057
    00086         void grab() const { ++ReferenceCounter; }
    00087
    00089
    00116         bool drop() const
    00117         {
    00118             // someone is doing bad reference counting.
    00119             _IRR_DEBUG_BREAK_IF(ReferenceCounter <= 0)
    00120
    00121             --ReferenceCounter;
    00122             if (!ReferenceCounter)
    00123             {
    00124                 delete this;
    00125                 return true;
    00126             }
    00127
    00128             return false;
    00129         }
    00130
    00132
    00133         s32 getReferenceCount() const
    00134         {
    00135             return ReferenceCounter;
    00136         }
    00137
    00139
    00142         const c8* getDebugName() const
    00143         {
    00144             return DebugName;
    00145         }
    00146
    00147     protected:
    00148
    00150
    00153         void setDebugName(const c8* newName)
    00154         {
    00155             DebugName = newName;
    00156         }
    00157
    00158     private:
    00159
    00161         const c8* DebugName;
    00162
    00164         mutable s32 ReferenceCounter;
    00165     };
    00166
    00167 } // end namespace irr
    00168
    00169 #endif
    00170