9917b6500d
//C++ header to help scripts and editors pick up the fact that the file is a header file.
42 lines
1.2 KiB
Plaintext
42 lines
1.2 KiB
Plaintext
//C++ header - Open Scene Graph - Copyright (C) 1998-2001 Robert Osfield
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//Distributed under the terms of the GNU Library General Public License (LGPL)
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//as published by the Free Software Foundation.
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#ifndef OSG_MEMORYADAPTER
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#define OSG_MEMORYADAPTER 1
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#include <osg/Referenced>
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namespace osg {
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/** Class for adapting the memory management of external data.
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* Typically used to specify the memory management of user data
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* which can be attached to osg::Node.
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*/
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class SG_EXPORT MemoryAdapter : public Referenced
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{
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public:
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MemoryAdapter() {}
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/** Increment the reference count of the userData.*/
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virtual void ref_data(void* /*userData*/) = 0;
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/** Decrement the reference count of the userData.
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Is usually implemented such that if reference count
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is decremented to zero the userData should be
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deleted. However, this is entirely up to the
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discretion of the user who is extending this base class.*/
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virtual void unref_data(void* /*userData*/) = 0;
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/** not current used, but will be used in future.*/
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virtual void* clone_data(void* /*userData*/) { return 0L; }
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protected:
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virtual ~MemoryAdapter() {}
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};
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};
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#endif
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