public function cleanup()
    {
        $actionMessage = function ($pid) {
            return __d('cake_resque', 'Cleaning up {0} ... ', $pid);
        };

        $successCallback = function ($worker) {
        };

        return $this->_sendSignal(
            __d('cake_resque', 'Cleaning up workers'),
            CakeResque::getWorkers(),
            __d('cake_resque', 'There is no active workers to clean up ...'),
            __d('cake_resque', 'Active workers list'),
            __d('cake_resque', 'Clean up all workers'),
            __d('cake_resque', 'Worker to Cleanup'),
            __d('cake_resque', 'Cleaning up the Scheduler Worker ... '),
            $actionMessage,
            null,
            $successCallback,
            'USR1'
        );
    }