ManaPHP\Message\Queue\Adapter\Redis::length PHP Метод

    public function length($topic, $priority = null)
    {
        if ($priority === null) {
            $length = 0;
            /** @noinspection SuspiciousLoopInspection */
            foreach ($this->_priorities as $priority) {
                $length += $this->redis->lLen($this->_prefix . $topic . ':' . $priority);
            }
            return $length;
        } else {
            return $this->redis->lLen($this->_prefix . $topic . ':' . $priority);
        }
    }