128 lines
2.2 KiB
C++
128 lines
2.2 KiB
C++
// Copyright (C) 2015 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Core module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Core/Debug.hpp>
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namespace Nz
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{
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namespace Detail
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{
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template<typename...> struct Initializer;
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template<typename T, typename... Rest>
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struct Initializer<T, Rest...>
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{
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static bool Init()
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{
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if (T::Initialize())
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{
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if (Initializer<Rest...>::Init())
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return true;
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else
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T::Uninitialize();
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}
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return false;
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}
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static void Uninit()
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{
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Initializer<Rest...>::Uninit();
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T::Uninitialize();
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}
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};
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template<>
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struct Initializer<>
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{
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static bool Init()
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{
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return true;
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}
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static void Uninit()
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{
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}
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};
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}
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/*!
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* \ingroup core
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* \class Nz::Initializer
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* \brief Core class that represents a module initializer
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*/
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/*!
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* \brief Constructs a Initializer object with a boolean
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*
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* \param initialize Initialize the module
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*/
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template<typename... Args>
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Initializer<Args...>::Initializer(bool initialize) :
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m_initialized(false)
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{
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if (initialize)
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Initialize();
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}
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/*!
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* \brief Destructs the object and call Uninitialize
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*
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* \see Uninitialize
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*/
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template<typename... Args>
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Initializer<Args...>::~Initializer()
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{
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Uninitialize();
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}
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/*!
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* \brief Initialize the module
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*
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* \see Uninitialize
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*/
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template<typename... Args>
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bool Initializer<Args...>::Initialize()
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{
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if (!m_initialized)
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m_initialized = Detail::Initializer<Args...>::Init();
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return m_initialized;
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}
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/*!
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* \brief Checks whether the module is initialized
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* \return true if initialized
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*/
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template<typename... Args>
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bool Initializer<Args...>::IsInitialized() const
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{
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return m_initialized;
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}
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/*!
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* \brief Uninitialize the module
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*
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* \see Initialize
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*/
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template<typename... Args>
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void Initializer<Args...>::Uninitialize()
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{
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if (m_initialized)
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Detail::Initializer<Args...>::Uninit();
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}
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/*!
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* \brief Converts the initializer to boolean
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* \return true if initialized
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*/
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template<typename... Args>
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Initializer<Args...>::operator bool() const
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{
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return IsInitialized();
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}
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}
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#include <Nazara/Core/DebugOff.hpp>
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