12226e4371
and passed as paramters into straight forward non const built in types, i.e. const bool foogbar(const int) becomes bool foobar(int).
52 lines
1.8 KiB
Plaintext
52 lines
1.8 KiB
Plaintext
//C++ header - Open Scene Graph - Copyright (C) 1998-2002 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_REFERENCED
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#define OSG_REFERENCED 1
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#include <osg/Export>
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namespace osg {
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/** Base class from providing referencing counted objects.*/
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class SG_EXPORT Referenced
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{
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public:
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Referenced() { _refCount=0; }
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Referenced(const Referenced&) { _refCount=0; }
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inline Referenced& operator = (Referenced&) { return *this; }
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/** increment the reference count by one, indicating that
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this object has another pointer which is referencing it.*/
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inline void ref() const { ++_refCount; }
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/** decrement the reference count by one, indicating that
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a pointer to this object is referencing it. If the
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reference count goes to zero, it is assumed that this object
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is no longer referenced and is automatically deleted.*/
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inline void unref() const { --_refCount; if (_refCount<=0) delete this; }
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/** decrement the reference count by one, indicating that
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a pointer to this object is referencing it. However, do
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not delete it, even if ref count goes to 0. Warning, unref_nodelete()
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should only be called if the user knows exactly who will
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be resonsible for, one should prefer unref() over unref_nodelete()
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as the later can lead to memory leaks.*/
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inline void unref_nodelete() const { --_refCount; }
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/** return the number pointers currently referencing this object. */
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inline int referenceCount() const { return _refCount; }
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protected:
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virtual ~Referenced();
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mutable int _refCount;
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};
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}
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#endif
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