Automattic\WP\Cron_Control\Events::can_run_event PHP Метод

    private function can_run_event($event)
    {
        // Limit to one concurrent execution of a specific action
        if (!Lock::check_lock($this->get_lock_key_for_event_action($event), 1, JOB_LOCK_EXPIRY_IN_MINUTES * \MINUTE_IN_SECONDS)) {
            return false;
        }
        // Internal Events aren't subject to the global lock
        if (is_internal_event($event['action'])) {
            return true;
        }
        // Check if any resources are available to execute this job
        // If not, the indivdual-event lock must be freed, otherwise it's deadlocked until it times out
        if (!Lock::check_lock(self::LOCK, JOB_CONCURRENCY_LIMIT)) {
            $this->reset_event_lock($event);
            return false;
        }
        // Let's go!
        return true;
    }