YiLazy.h

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// © You i Labs Inc. 2000-2017. All rights reserved.
#ifndef _YI_LAZY_H_
#define _YI_LAZY_H_

#include "framework/YiPredef.h"

#include <atomic>

template <class YI_CLASS>
class CYILazy
{
public:
    CYILazy();

    ~CYILazy();

    const YI_CLASS *Get() const;

    YI_CLASS *Get();

    const YI_CLASS *TryGet() const;
    YI_CLASS *TryGet();

private:
    CYILazy(const CYILazy &) = delete;
    CYILazy &operator=(const CYILazy &) = delete;

    mutable std::atomic<YI_CLASS *> m_pInstance;
};

#include "utility/YiLazy_impl.h"

#endif /* _YI_LAZY_H_ */