pocketmine\MemoryManager::check PHP Method

    public function check()
    {
        Timings::$memoryManagerTimer->startTiming();
        if (($this->memoryLimit > 0 or $this->globalMemoryLimit > 0) and ++$this->checkTicker >= $this->checkRate) {
            $this->checkTicker = 0;
            $memory = Utils::getMemoryUsage(true);
            $trigger = false;
            if ($this->memoryLimit > 0 and $memory[0] > $this->memoryLimit) {
                $trigger = 0;
            } elseif ($this->globalMemoryLimit > 0 and $memory[1] > $this->globalMemoryLimit) {
                $trigger = 1;
            }
            if ($trigger !== false) {
                if ($this->lowMemory and $this->continuousTrigger) {
                    if (++$this->continuousTriggerTicker >= $this->continuousTriggerRate) {
                        $this->continuousTriggerTicker = 0;
                        $this->trigger($memory[$trigger], $this->memoryLimit, $trigger > 0, ++$this->continuousTriggerCount);
                    }
                } else {
                    $this->lowMemory = true;
                    $this->continuousTriggerCount = 0;
                    $this->trigger($memory[$trigger], $this->memoryLimit, $trigger > 0);
                }
            } else {
                $this->lowMemory = false;
            }
        }
        if ($this->garbageCollectionPeriod > 0 and ++$this->garbageCollectionTicker >= $this->garbageCollectionPeriod) {
            $this->garbageCollectionTicker = 0;
            $this->triggerGarbageCollector();
        }
        Timings::$memoryManagerTimer->stopTiming();
    }