diff options
Diffstat (limited to 'src/server/shared/Policies/SingletonImp.h')
-rw-r--r-- | src/server/shared/Policies/SingletonImp.h | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/src/server/shared/Policies/SingletonImp.h b/src/server/shared/Policies/SingletonImp.h new file mode 100644 index 00000000000..3e985cd5c64 --- /dev/null +++ b/src/server/shared/Policies/SingletonImp.h @@ -0,0 +1,93 @@ +/* + * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/> + * + * Copyright (C) 2008-2010 Trinity <http://www.trinitycore.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::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::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::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::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 + |