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49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
/*
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*(C) 2006 Roku LLC
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License Version 2 as published
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* by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* without any warranty; without even the implied warranty of
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* merchantability or fitness for a particular purpose. See the GNU General
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* Public License for more details.
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*
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* Please read README.txt in the same directory as this source file for
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* further license information.
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*/
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#ifndef SINGLETON_H
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#define SINGLETON_H
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template <class T>
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class Singleton
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{
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static T *sm_instance;
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public:
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Singleton()
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{
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T *instance = static_cast<T *>(this);
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ATLASSERT(sm_instance == NULL);
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sm_instance = instance;
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}
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virtual ~Singleton()
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{
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ATLASSERT(sm_instance != NULL);
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sm_instance = NULL;
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}
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static T *GetInstance()
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{
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ATLASSERT(sm_instance != NULL);
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return sm_instance;
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}
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};
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template <class T>
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T *Singleton<T>::sm_instance;
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#endif // SINGLETON_H
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