mostlyharmless_Proxy.h

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//
// Created by Syl Morrison on 08/02/2025.
//
 
#ifndef MOSTLYHARMLESS_PROXY_H
#define MOSTLYHARMLESS_PROXY_H
#include <memory>
#include <mutex>
namespace mostly_harmless::utils {

    template <typename T>
    class Proxy final {
    private:
        struct Private {};
 
    public:
        explicit Proxy([[maybe_unused]] Private, T* toWrap) : m_wrapped(toWrap) {
        }

        [[nodiscard]] static std::shared_ptr<Proxy<T>> create(T* toWrap) noexcept {
            return std::make_shared<Proxy<T>>(Private{}, toWrap);
        }

        [[nodiscard]] T* getWrapped() noexcept {
            std::scoped_lock<std::mutex> sl{ m_mutex };
            return m_wrapped;
        }

        void null() noexcept {
            std::scoped_lock<std::mutex> sl{ m_mutex };
            m_wrapped = nullptr;
        }

        [[nodiscard]] bool isValid() noexcept {
            std::scoped_lock<std::mutex> sl{ m_mutex };
            return m_wrapped;
        }
 
    private:
        std::mutex m_mutex;
        T* m_wrapped{ nullptr };
    };
 
} // namespace mostly_harmless::utils
#endif // MOSTLYHARMLESS_PROXY_H