5fa5186480
This reverts commit db2ef3e90c3871290d114a9e6437b412e96c65aa [formerly a3f6ff88a25e63374eb6ce5b18269da2ba743b06] [formerly cfa12604fbb0da76fc27288b210ee1254a8b3a38 [formerly dee6ce858398e2de38ef1af00c1c630fd0126e09]] [formerly 1a23f0fddcd80ac33030061b7a00a3cfd43cb7fe [formerly d3cb17069c71449ae3f1cba6de55ea70f509e7a4] [formerly b2f8f82e9f3427310204f2e8a61d7bdfd96202d2 [formerly 5d117720d08d6d6243b3428d4b3f8aea1abef845]]]. Former-commit-id: 13a54266823fed88610753b1a90f4ef2c6fe932d [formerly 508d1a01cceee4a577063c684244fcf598ff6cb5] [formerly 2c99faae4d65dc222d05d2f98913a380b38d58ef [formerly 0117f7aec15e3db31cacdd0ef874064907c41ba8]] Former-commit-id: 140d69126443b821a232a1a8b012712fc2e74b0f [formerly 501a63bd435f64d9da932279c90400ed95d0c1be] Former-commit-id: d2d74a42d070eae9c1f158a59238c5f1ac40edb3
129 lines
2.7 KiB
C++
129 lines
2.7 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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#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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#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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namespace Nz
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{
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/*!
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* \ingroup core
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* \class Nz::RefCounted
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* \brief Core class that represents a reference with a counter
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*/
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/*!
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* \brief Constructs a RefCounted object with a persistance aspect
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*
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* \param persistent if false, object is destroyed when no more referenced
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*/
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RefCounted::RefCounted(bool persistent) :
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m_persistent(persistent),
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m_referenceCount(0)
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{
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}
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/*!
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* \brief Destructs the object
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*
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* \remark Produces a NazaraWarning if still referenced with NAZARA_CORE_SAFE defined
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*/
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RefCounted::~RefCounted()
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{
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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 " + String::Number(m_referenceCount) + " time(s)");
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#endif
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}
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/*!
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* \brief Adds a reference to the object
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*/
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void RefCounted::AddReference() const
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{
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m_referenceCount++;
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}
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/*!
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* \brief Gets the number of references to the object
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* \return Number of references
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*/
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unsigned int RefCounted::GetReferenceCount() const
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{
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return m_referenceCount;
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}
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/*!
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* \brief Checks whether the object is persistent
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* \return true if object is not destroyed when no more referenced
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*/
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bool RefCounted::IsPersistent() const
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{
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return m_persistent;
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}
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/*!
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* \brief Removes a reference to the object
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* \return true if object is deleted because no more referenced
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*
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* \remark Produces a NazaraError if counter is already 0 with NAZARA_CORE_SAFE defined
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*/
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bool RefCounted::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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/*!
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* \brief Sets the persistence of the object
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* \return true if object is deleted because no more referenced
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*
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* \param persistent Sets the persistence of the object
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* \param checkReferenceCount Checks if the object should be destroyed if true
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*/
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bool RefCounted::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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}
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