9.5/_in_memory_log_writer_8php_source.html

<?php

declare(strict_types = 1);


namespace ‪TYPO3\CMS\Adminpanel\Log;


/*

 * This file is part of the TYPO3 CMS project.

 *

 * It is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, either version 2

 * of the License, or any later version.

 *

 * For the full copyright and license information, please read the

 * LICENSE.txt file that was distributed with this source code.

 *

 * The TYPO3 project - inspiring people to share!

 */


use ‪TYPO3\CMS\Adminpanel\Utility\MemoryUtility;

use ‪TYPO3\CMS\Core\Log\LogLevel;

use ‪TYPO3\CMS\Core\Log\LogRecord;

use ‪TYPO3\CMS\Core\Log\Writer\AbstractWriter;

use ‪TYPO3\CMS\Core\Utility\GeneralUtility;


class ‪InMemoryLogWriter extends ‪AbstractWriter

{

    public static ‪$log = [];


    private static ‪$memoryLock = false;


    public function ‪writeLog(‪LogRecord $record): self

    {

        // Guard: Locked Writer

        if (self::$memoryLock === true) {

            return $this;

        }


        // Guard: Memory Usage

        if (!self::$memoryLock && ‪MemoryUtility::isMemoryConsumptionTooHigh()) {

            $this->‪lockWriter();

            return $this;

        }


        self::$log[] = $record;


        return $this;

    }


    protected function ‪lockWriter(): void

    {

        self::$memoryLock = true;

        $record = GeneralUtility::makeInstance(

            LogRecord::class,

            'TYPO3.CMS.AdminPanel.Log.InMemoryLogWriter',

            ‪LogLevel::INFO,

            '... Further log entries omitted, memory usage too high.'

        );

        self::$log[] = $record;

    }

}