Method connect_impl

libraries/lib-engine/src/core-events.cpp:146–151

    event_manager_sync::~event_manager_sync() {}

    event_manager_sync::connection event_manager_sync::connect_impl(poly_typeid type, const void * owner, event_handler handler)
    {
        const connection_id new_id = ++id;
        handlers->add(type, new_id, owner, std::move(handler));
        return connection(handlers, type, new_id);
    }

    void event_manager_sync::disconnect_impl(poly_typeid type, const void * owner) { /* todo */ }