portal class

portal.cpp

namespace fbp {
    
    struct portal {
        
        portal(std::string name): name_(name) {}
        
        virtual void connect(connectable* link) {
            ports[link->name()] = link;
        }
                
        connectable* operator[] (const std::string port_name) {
            return ports[port_name];
        }
        
        std::string name() {
            return name_;
        }
        
        virtual ~portal() {}
        
    private:
        
        std::string name_;
        
        std::map<std::string, connectable*> ports;
        
    };
    
}