InMemoryLogWriter.php

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<?php
 
declare(strict_types=1);
 
/*
 * 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!
 */
 
namespace ‪TYPO3\CMS\Adminpanel\Log;
 
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 (‪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;
    }
}