174 lines
3.6 KiB
C++
174 lines
3.6 KiB
C++
// Copyright (C) 2014 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/RefCounted.hpp>
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#include <Nazara/Core/Config.hpp>
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#include <Nazara/Core/Error.hpp>
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#include <Nazara/Core/ObjectListener.hpp>
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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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#include <Nazara/Core/Debug.hpp>
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NzRefCounted::NzRefCounted(bool persistent) :
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m_persistent(persistent),
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m_referenceCount(0),
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m_objectListenersLocked(false)
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{
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}
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NzRefCounted::~NzRefCounted()
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{
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m_objectListenersLocked = true;
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for (auto& pair : m_objectListeners)
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pair.first->OnObjectReleased(this, pair.second.first);
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#if NAZARA_CORE_SAFE
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if (m_referenceCount > 0)
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NazaraWarning("Resource destroyed while still referenced " + NzString::Number(m_referenceCount) + " time(s)");
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#endif
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}
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void NzRefCounted::AddObjectListener(NzObjectListener* listener, int index) const
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{
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///DOC: Est ignoré si appelé depuis un évènement
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NazaraLock(m_mutex)
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if (!m_objectListenersLocked)
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{
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auto pair = m_objectListeners.insert(std::make_pair(listener, std::make_pair(index, 1U)));
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if (!pair.second)
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pair.first->second.second++;
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}
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}
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void NzRefCounted::AddReference() const
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{
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m_referenceCount++;
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}
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unsigned int NzRefCounted::GetReferenceCount() const
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{
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return m_referenceCount;
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}
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bool NzRefCounted::IsPersistent() const
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{
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return m_persistent;
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}
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void NzRefCounted::RemoveObjectListener(NzObjectListener* listener) const
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{
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///DOC: Est ignoré si appelé depuis un évènement
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NazaraLock(m_mutex);
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if (!m_objectListenersLocked)
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{
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ObjectListenerMap::iterator it = m_objectListeners.find(listener);
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if (it != m_objectListeners.end())
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RemoveObjectListenerIterator(it);
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}
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}
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bool NzRefCounted::RemoveReference() const
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{
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#if NAZARA_CORE_SAFE
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if (m_referenceCount == 0)
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{
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NazaraError("Impossible to remove reference (Ref. counter is already 0)");
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return false;
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}
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#endif
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if (--m_referenceCount == 0 && !m_persistent)
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{
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delete this; // Suicide
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return true;
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}
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else
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return false;
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}
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bool NzRefCounted::SetPersistent(bool persistent, bool checkReferenceCount)
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{
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m_persistent = persistent;
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if (checkReferenceCount && !persistent && m_referenceCount == 0)
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{
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delete this;
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return true;
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}
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else
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return false;
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}
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void NzRefCounted::NotifyCreated()
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{
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NazaraLock(m_mutex)
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m_objectListenersLocked = true;
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auto it = m_objectListeners.begin();
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while (it != m_objectListeners.end())
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{
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if (!it->first->OnObjectCreated(this, it->second.first))
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RemoveObjectListenerIterator(it++);
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else
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++it;
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}
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m_objectListenersLocked = false;
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}
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void NzRefCounted::NotifyDestroy()
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{
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NazaraLock(m_mutex)
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m_objectListenersLocked = true;
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auto it = m_objectListeners.begin();
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while (it != m_objectListeners.end())
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{
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if (!it->first->OnObjectDestroy(this, it->second.first))
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RemoveObjectListenerIterator(it++);
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else
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++it;
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}
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m_objectListenersLocked = false;
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}
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void NzRefCounted::NotifyModified(unsigned int code)
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{
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NazaraLock(m_mutex)
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m_objectListenersLocked = true;
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auto it = m_objectListeners.begin();
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while (it != m_objectListeners.end())
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{
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if (!it->first->OnObjectModified(this, it->second.first, code))
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RemoveObjectListenerIterator(it++);
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else
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++it;
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}
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m_objectListenersLocked = false;
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}
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void NzRefCounted::RemoveObjectListenerIterator(ObjectListenerMap::iterator iterator) const
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{
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unsigned int& referenceCount = iterator->second.second;
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if (referenceCount == 1)
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m_objectListeners.erase(iterator);
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else
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referenceCount--;
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}
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