FD_ZERO(&readfds); FD_ZERO(&writefds); FD_ZERO(&exceptfds);
adns_interest(ads,&maxfd,&readfds,&writefds,&exceptfds,&tvp,&tvbuf);
rsel= select(maxfd,&readfds,&writefds,&exceptfds,tvp);
FD_ZERO(&readfds); FD_ZERO(&writefds); FD_ZERO(&exceptfds);
adns_interest(ads,&maxfd,&readfds,&writefds,&exceptfds,&tvp,&tvbuf);
rsel= select(maxfd,&readfds,&writefds,&exceptfds,tvp);