Main loop

At this point, the peer program is in its main loop.

   

       for (;;) {
           int             n, secs;
           fd_set          rfds, wfds;
   

           secs = NOTOK;
           rfds = ifds;    /* struct copy */
           wfds = ofds;
   

           if (smux_fd == NOTOK && !dont_bother_anymore)
               secs = 5 * 60L;
           else if (rock_and_roll)
               FD_SET(smux_fd, &rfds);
           else
               FD_SET(smux_fd, &wfds);
           if (smux_fd >= nfds)
               nfds = smux_fd + 1;
   

           if ((n = xselect(nfds, &rfds, &wfds, NULLFD, secs)) == NOTOK) {
               LIB_PERROR("failed, xselect");
               exit(-1);
           }
   

           if (smux_fd == NOTOK && !dont_bother_anymore) {
               if (n == 0) {
                   if ((smux_fd = smux_init(debug)) == NOTOK)
                       LIB_ERROR2("smux_init: %s [%s]",
                           smux_error(smux_errno),smux_info);
                   else
                       rock_and_roll = 0;
               }
           } else if (rock_and_roll) {
               if (FD_ISSET(smux_fd, &rfds))
                   doit_smux();
           } else if (FD_ISSET(smux_fd, &wfds))
               start_smux();
       }