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/*
* Copyright (C) 2008 Trinity <http://www.trinitycore.org/>
*
* Thanks to the original authors: MaNGOS <http://www.mangosproject.org/>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef TRINITY_SINGLETONIMPL_H
#define TRINITY_SINGLETONIMPL_H
#include "Singleton.h"
// avoid the using namespace here cuz
// its a .h file afterall
template
<
typename T,
class ThreadingModel,
class CreatePolicy,
class LifeTimePolicy
>
T&
Trinity::Singleton<T, ThreadingModel, CreatePolicy, LifeTimePolicy >::Instance()
{
if( !si_instance )
{
// double-checked Locking pattern
Guard();
if( !si_instance )
{
if( si_destroyed )
{
si_destroyed = false;
LifeTimePolicy::OnDeadReference();
}
si_instance = CreatePolicy::Create();
LifeTimePolicy::ScheduleCall(&DestroySingleton);
}
}
return *si_instance;
}
template
<
typename T,
class ThreadingModel,
class CreatePolicy,
class LifeTimePolicy
>
void
Trinity::Singleton<T, ThreadingModel, CreatePolicy, LifeTimePolicy>::DestroySingleton()
{
CreatePolicy::Destroy(si_instance);
si_instance = NULL;
si_destroyed = true;
}
#define INSTANTIATE_SINGLETON_1(TYPE) \
template class TRINITY_DLL_DECL Trinity::Singleton<TYPE, Trinity::SingleThreaded<TYPE>, Trinity::OperatorNew<TYPE>, Trinity::ObjectLifeTime<TYPE> >; \
template<> TYPE* Trinity::Singleton<TYPE, Trinity::SingleThreaded<TYPE>, Trinity::OperatorNew<TYPE>, Trinity::ObjectLifeTime<TYPE> >::si_instance = 0; \
template<> bool Trinity::Singleton<TYPE, Trinity::SingleThreaded<TYPE>, Trinity::OperatorNew<TYPE>, Trinity::ObjectLifeTime<TYPE> >::si_destroyed = false
#define INSTANTIATE_SINGLETON_2(TYPE, THREADINGMODEL) \
template class TRINITY_DLL_DECL Trinity::Singleton<TYPE, THREADINGMODEL, Trinity::OperatorNew<TYPE>, Trinity::ObjectLifeTime<TYPE> >; \
template<> TYPE* Trinity::Singleton<TYPE, THREADINGMODEL, Trinity::OperatorNew<TYPE>, Trinity::ObjectLifeTime<TYPE> >::si_instance = 0; \
template<> bool Trinity::Singleton<TYPE, THREADINGMODEL, Trinity::OperatorNew<TYPE>, Trinity::ObjectLifeTime<TYPE> >::si_destroyed = false
#define INSTANTIATE_SINGLETON_3(TYPE, THREADINGMODEL, CREATIONPOLICY ) \
template class TRINITY_DLL_DECL Trinity::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, Trinity::ObjectLifeTime<TYPE> >; \
template<> TYPE* Trinity::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, Trinity::ObjectLifeTime<TYPE> >::si_instance = 0; \
template<> bool Trinity::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, Trinity::ObjectLifeType<TYPE> >::si_destroyed = false
#define INSTANTIATE_SINGLETON_4(TYPE, THREADINGMODEL, CREATIONPOLICY, OBJECTLIFETIME) \
template class TRINITY_DLL_DECL Trinity::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, OBJECTLIFETIME >; \
template<> TYPE* Trinity::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, OBJECTLIFETIME >::si_instance = 0; \
template<> bool Trinity::Singleton<TYPE, THREADINGMODEL, CREATIONPOLICY, OBJECTLIFETIME >::si_destroyed = false
#endif
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