116 lines
1.8 KiB
C++
116 lines
1.8 KiB
C++
#ifndef __INC_ETERLIB_SINGLETON_H__
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#define __INC_ETERLIB_SINGLETON_H__
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#include <assert.h>
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template <typename T> class CSingleton
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{
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static T * ms_singleton;
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public:
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CSingleton()
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{
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assert(!ms_singleton);
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int offset = (int) (T*) 1 - (int) (CSingleton <T>*) (T*) 1;
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ms_singleton = (T*) ((int) this + offset);
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}
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virtual ~CSingleton()
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{
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assert(ms_singleton);
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ms_singleton = 0;
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}
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__forceinline static T & Instance()
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{
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assert(ms_singleton);
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return (*ms_singleton);
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}
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__forceinline static T * InstancePtr()
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{
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return (ms_singleton);
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}
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__forceinline static T & instance()
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{
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assert(ms_singleton);
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return (*ms_singleton);
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}
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};
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template <typename T> T * CSingleton <T>::ms_singleton = 0;
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//
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// singleton for non-hungarian
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//
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template <typename T> class singleton
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{
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static T * ms_singleton;
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public:
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singleton()
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{
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assert(!ms_singleton);
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int offset = (int) (T*) 1 - (int) (CSingleton <T>*) (T*) 1;
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ms_singleton = (T*) ((int) this + offset);
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}
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virtual ~singleton()
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{
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assert(ms_singleton);
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ms_singleton = 0;
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}
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__forceinline static T & Instance()
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{
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assert(ms_singleton);
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return (*ms_singleton);
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}
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__forceinline static T * InstancePtr()
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{
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return (ms_singleton);
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}
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__forceinline static T & instance()
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{
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assert(ms_singleton);
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return (*ms_singleton);
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}
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};
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template <typename T> T * singleton <T>::ms_singleton = 0;
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/*
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template<typename T>
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class CSingleton : public T
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{
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public:
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static T & Instance()
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{
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assert(ms_pInstance != NULL);
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return *ms_pInstance;
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}
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CSingleton()
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{
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assert(ms_pInstance == NULL);
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ms_pInstance = this;
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}
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virtual ~CSingleton()
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{
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assert(ms_pInstance);
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ms_pInstance = 0;
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}
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protected:
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static T * ms_pInstance;
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};
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template<typename T> T * CSingleton<T>::ms_pInstance = NULL;
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*/
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#endif
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//martysama0134's 2e58d0b8baeb072acdf3afc4a5d1999f
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