if ( !$dbw->lock( $lockKey, __METHOD__, 0 ) ) {
// Exclusive update (avoids duplicate entries)… it's usually fine to just
// drop out here, if the Job is already running.
if ( !$dbw->lock( $lockKey, __METHOD__, 0 ) ) {
// Exclusive update (avoids duplicate entries)… it's usually fine to just
// drop out here, if the Job is already running.