Hi, everyone. I'm a little confused about OSDService. As far as I know, class OSD can accomplish all the task that a OSD need to do, what is OSDService used for? Especially, what is the meaning of methods like OSDService::get_nextmap_reserved, OSDService::release_map, OSDService::await_reserved_maps? Thanks:-)��.n��������+%������w��{.n����z��u���ܨ}���Ơz�j:+v�����w����ޙ��&�)ߡ�a����z�ޗ���ݢj��w�f