// Sleep if the update interval has not yet been reached.
$fNextUpdate = $aLastState['unix_ts'] + CONST_Replication_Update_Interval;
if ($fNextUpdate > $fStartTime) {
// Sleep if the update interval has not yet been reached.
$fNextUpdate = $aLastState['unix_ts'] + CONST_Replication_Update_Interval;
if ($fNextUpdate > $fStartTime) {