// log_rd("PRE MAIN ".$step);;
$pre_main = gettimeofday(TRUE);
if (($ret = maincheck($sess, $old_stat, $old_subst, $old_step, &$stat, &$subst, &$step)) != FALSE) {
// log_rd("PRE MAIN ".$step);;
$pre_main = gettimeofday(TRUE);
if (($ret = maincheck($sess, $old_stat, $old_subst, $old_step, &$stat, &$subst, &$step)) != FALSE) {