GarbageCollectorCommand.php

<?php
 
/*
 *
 *  ____            _        _   __  __ _                  __  __ ____
 * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
 * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
 * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
 * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * @author PocketMine Team
 * @link http://www.pocketmine.net/
 *
 *
 */
 
declare(strict_types=1);
 
namespace pocketmine\command\defaults;
 
use pocketmine\command\CommandSender;
use pocketmine\lang\KnownTranslationFactory;
use pocketmine\permission\DefaultPermissionNames;
use pocketmine\utils\TextFormat;
use function count;
use function memory_get_usage;
use function number_format;
use function round;
 
class GarbageCollectorCommand extends VanillaCommand{
 
    public function __construct(string $namespace, string $name){
        parent::__construct(
            $namespace,
            $name,
            KnownTranslationFactory::pocketmine_command_gc_description()
        );
        $this->setPermission(DefaultPermissionNames::COMMAND_GC);
    }
 
    public function execute(CommandSender $sender, string $commandLabel, array $args){
        $chunksCollected = 0;
        $entitiesCollected = 0;
 
        $memory = memory_get_usage();
 
        foreach($sender->getServer()->getWorldManager()->getWorlds() as $world){
            $diff = [count($world->getLoadedChunks()), count($world->getEntities())];
            $world->doChunkGarbageCollection();
            $world->unloadChunks(true);
            $chunksCollected += $diff[0] - count($world->getLoadedChunks());
            $entitiesCollected += $diff[1] - count($world->getEntities());
            $world->clearCache(true);
        }
 
        $cyclesCollected = $sender->getServer()->getMemoryManager()->triggerGarbageCollector();
 
        $sender->sendMessage(KnownTranslationFactory::pocketmine_command_gc_header()->format(TextFormat::GREEN . "---- " . TextFormat::RESET, TextFormat::GREEN . " ----" . TextFormat::RESET));
        $sender->sendMessage(KnownTranslationFactory::pocketmine_command_gc_chunks(TextFormat::RED . number_format($chunksCollected))->prefix(TextFormat::GOLD));
        $sender->sendMessage(KnownTranslationFactory::pocketmine_command_gc_entities(TextFormat::RED . number_format($entitiesCollected))->prefix(TextFormat::GOLD));
 
        $sender->sendMessage(KnownTranslationFactory::pocketmine_command_gc_cycles(TextFormat::RED . number_format($cyclesCollected))->prefix(TextFormat::GOLD));
        $sender->sendMessage(KnownTranslationFactory::pocketmine_command_gc_memoryFreed(TextFormat::RED . number_format(round((($memory - memory_get_usage()) / 1024) / 1024, 2), 2))->prefix(TextFormat::GOLD));
        return true;
    }
}