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90 lines
3.6 KiB
C++
90 lines
3.6 KiB
C++
/*
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* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef MANGOS_SINGLETONIMPL_H
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#define MANGOS_SINGLETONIMPL_H
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#include "Singleton.h"
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// avoid the using namespace here cuz
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// its a .h file afterall
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template
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<
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typename T,
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class ThreadingModel,
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class CreatePolicy,
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class LifeTimePolicy
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>
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T&
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MaNGOS::Singleton<T, ThreadingModel, CreatePolicy, LifeTimePolicy >::Instance()
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{
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if( !si_instance )
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{
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// double-checked Locking pattern
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Guard();
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if( !si_instance )
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{
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if( si_destroyed )
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{
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si_destroyed = false;
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LifeTimePolicy::OnDeadReference();
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}
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si_instance = CreatePolicy::Create();
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LifeTimePolicy::ScheduleCall(&DestroySingleton);
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}
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}
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return *si_instance;
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}
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template
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<
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typename T,
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class ThreadingModel,
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class CreatePolicy,
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class LifeTimePolicy
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>
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void
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MaNGOS::Singleton<T, ThreadingModel, CreatePolicy, LifeTimePolicy>::DestroySingleton()
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{
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CreatePolicy::Destroy(si_instance);
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si_instance = NULL;
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si_destroyed = true;
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}
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#define INSTANTIATE_SINGLETON_1(TYPE) \
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template class MANGOS_DLL_DECL MaNGOS::Singleton<TYPE, MaNGOS::SingleThreaded<TYPE>, MaNGOS::OperatorNew<TYPE>, MaNGOS::ObjectLifeTime<TYPE> >; \
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template<> TYPE* MaNGOS::Singleton<TYPE, MaNGOS::SingleThreaded<TYPE>, MaNGOS::OperatorNew<TYPE>, MaNGOS::ObjectLifeTime<TYPE> >::si_instance = 0; \
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template<> bool MaNGOS::Singleton<TYPE, MaNGOS::SingleThreaded<TYPE>, MaNGOS::OperatorNew<TYPE>, MaNGOS::ObjectLifeTime<TYPE> >::si_destroyed = false
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#define INSTANTIATE_SINGLETON_2(TYPE, THREADINGMODEL) \
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template class MANGOS_DLL_DECL MaNGOS::Singleton<TYPE, THREADINGMODEL, MaNGOS::OperatorNew<TYPE>, MaNGOS::ObjectLifeTime<TYPE> >; \
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template<> TYPE* MaNGOS::Singleton<TYPE, THREADINGMODEL, MaNGOS::OperatorNew<TYPE>, MaNGOS::ObjectLifeTime<TYPE> >::si_instance = 0; \
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template<> bool MaNGOS::Singleton<TYPE, THREADINGMODEL, MaNGOS::OperatorNew<TYPE>, MaNGOS::ObjectLifeTime<TYPE> >::si_destroyed = false
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#define INSTANTIATE_SINGLETON_3(TYPE, THREADINGMODEL, CREATIONPOLICY ) \
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template class MANGOS_DLL_DECL MaNGOS::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, MaNGOS::ObjectLifeTime<TYPE> >; \
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template<> TYPE* MaNGOS::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, MaNGOS::ObjectLifeTime<TYPE> >::si_instance = 0; \
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template<> bool MaNGOS::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, MaNGOS::ObjectLifeType<TYPE> >::si_destroyed = false
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#define INSTANTIATE_SINGLETON_4(TYPE, THREADINGMODEL, CREATIONPOLICY, OBJECTLIFETIME) \
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template class MANGOS_DLL_DECL MaNGOS::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, OBJECTLIFETIME >; \
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template<> TYPE* MaNGOS::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, OBJECTLIFETIME >::si_instance = 0; \
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template<> bool MaNGOS::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, OBJECTLIFETIME >::si_destroyed = false
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#endif
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