set_plex_state
set_plex_state(plex->plexno, plex_faulty, setstate_force); /* need to reinitialize */
int set_plex_state(int plexno, enum plexstate state, enum setstateflags flags);
set_plex_state(plex->plexno, plex_up, setstate_none); /* update plex state */
set_plex_state(plex->plexno,
set_plex_state(msg->index, plex_initializing, msg->force);
status = set_plex_state(objindex, plex_up, flags);
status = set_plex_state(objindex, plex_down, data->force);