class EngineImpl {
std::map<std::string, s4u::Host*> hosts_;
std::map<std::string, s4u::Link*> links_;
- std::map<std::string, s4u::Disk*> disks_;
std::map<std::string, s4u::Storage*> storages_;
std::unordered_map<std::string, routing::NetPoint*> netpoints_;
friend s4u::Engine;