64 lines
1.7 KiB
C++
64 lines
1.7 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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#pragma once
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#ifndef NAZARA_REFCOUNTED_HPP
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#define NAZARA_REFCOUNTED_HPP
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#include <Nazara/Prerequesites.hpp>
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#include <atomic>
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#include <unordered_map>
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#if NAZARA_CORE_THREADSAFE && NAZARA_THREADSAFETY_REFCOUNTED
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#include <Nazara/Core/ThreadSafety.hpp>
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#else
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#include <Nazara/Core/ThreadSafetyOff.hpp>
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#endif
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class NzObjectListener;
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class NAZARA_API NzRefCounted
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{
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public:
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NzRefCounted(bool persistent = true);
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NzRefCounted(const NzRefCounted&) = delete;
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NzRefCounted(NzRefCounted&&) = delete;
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virtual ~NzRefCounted();
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void AddObjectListener(NzObjectListener* listener, int index = 0) const;
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void AddReference() const;
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unsigned int GetReferenceCount() const;
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bool IsPersistent() const;
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void RemoveObjectListener(NzObjectListener* listener) const;
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bool RemoveReference() const;
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bool SetPersistent(bool persistent = true, bool checkReferenceCount = false);
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NzRefCounted& operator=(const NzRefCounted&) = delete;
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NzRefCounted& operator=(NzRefCounted&&) = delete;
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protected:
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void NotifyCreated();
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void NotifyDestroy();
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void NotifyModified(unsigned int code);
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private:
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using ObjectListenerMap = std::unordered_map<NzObjectListener*, std::pair<int, unsigned int>>;
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void RemoveObjectListenerIterator(ObjectListenerMap::iterator iterator) const;
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NazaraMutexAttrib(m_mutex, mutable)
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mutable ObjectListenerMap m_objectListeners;
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std::atomic_bool m_persistent;
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mutable std::atomic_uint m_referenceCount;
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bool m_objectListenersLocked;
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};
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#endif // NAZARA_RESOURCE_HPP
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