diff options
| author | chai <chaifix@163.com> | 2019-08-07 21:08:47 +0800 |
|---|---|---|
| committer | chai <chaifix@163.com> | 2019-08-07 21:08:47 +0800 |
| commit | 0c391fdbce5a079cf03e483eb6174dd47806163d (patch) | |
| tree | b06cd7a9d0ae0d9bb9e82f3dcb786dfce11f8628 /Source/modules/asura-base/Singleton.hpp | |
| parent | 9686368e58e25cbd6dc37d686bdd2be3f80486d6 (diff) | |
*misc
Diffstat (limited to 'Source/modules/asura-base/Singleton.hpp')
| -rw-r--r-- | Source/modules/asura-base/Singleton.hpp | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/Source/modules/asura-base/Singleton.hpp b/Source/modules/asura-base/Singleton.hpp new file mode 100644 index 0000000..9bb7336 --- /dev/null +++ b/Source/modules/asura-base/Singleton.hpp @@ -0,0 +1,59 @@ +#ifndef _ASURA_SINGLETON_H_ +#define _ASURA_SINGLETON_H_ + +#include "UtilsConfig.h" + +namespace AsuraEngine +{ + + /// + /// �̳�Singleton�����ڵ�һ��ʵ����ʱ����ʵ����֮������ٴ�ʵ�����ᱨ���� + /// + template<class T> + class Singleton + { + public: + + static T* Get() + { + // ���֮ǰû�д�������������������һ�������� + if (!instance) instance = new T; + // ����ʵ�� + return instance; + } + + static void Destroy() + { + delete instance; + instance = nullptr; + } + + protected: + + Singleton() + { + // �����instance����ζ���ִ�����һ��ʵ�������Ǵ���ġ� + ASSERT(!instance); + // ������ʵ����Ϊʵ�� + instance = static_cast<T*>(this); + }; + + virtual ~Singleton() {}; + + static T* instance; + + private: + + Singleton(const Singleton& singleton); + + Singleton& operator = (const Singleton& singleton); + + }; + + // ʵ����ʼ��Ϊ�� + template<class T> + T* Singleton<T>::instance = nullptr; + +} + +#endif // _ASURA_SINGLETON_H_
\ No newline at end of file |