// Copyright (C) 2022 Check Point Software Technologies Ltd. All rights reserved. // Licensed under the Apache License, Version 2.0 (the "License"); // You may obtain a copy of the License at // // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #ifndef __SINGLETON_H__ #define __SINGLETON_H__ #include #include #include #include #include #include "common.h" class Singleton { public: template class Provide; template class Consume; template static bool exists(); // Dealing with owned singletons - see advanced topics. class OwnedSingleton; template static DerivedFromOwnedSingleton * getOwned(); template static bool existsOwned(); template static void newOwned(BuildArgs ... args); template static void deleteOwned(); template static void setOwned(std::unique_ptr &&ptr); private: Singleton() {} template static I_Face * get(); static void registerSingleton(std::type_index type, void *ptr); static void unregisterSingleton(std::type_index type, void *ptr); static void * get(const std::type_index &index); static bool exists(const std::type_index &index); static std::map> singles; static std::map> owned_singles; }; template Interface * getInterface(); #include "impl/singleton.h" #endif // __SINGLETON_H__