86 lines
2.2 KiB
PHP
86 lines
2.2 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2018, Michael Weimann (<mail@michael-weimann.eu>)
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*
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* @author Christoph Wurst <christoph@winzerhof-wurst.at>
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* @author Michael Weimann <mail@michael-weimann.eu>
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*
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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namespace OC;
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/**
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* Helper class that covers memory info.
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*/
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class MemoryInfo {
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public const RECOMMENDED_MEMORY_LIMIT = 512 * 1024 * 1024;
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/**
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* Tests if the memory limit is greater or equal the recommended value.
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*
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* @return bool
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*/
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public function isMemoryLimitSufficient(): bool {
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$memoryLimit = $this->getMemoryLimit();
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return $memoryLimit === -1 || $memoryLimit >= self::RECOMMENDED_MEMORY_LIMIT;
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}
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/**
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* Returns the php memory limit.
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*
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* @return int The memory limit in bytes.
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*/
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public function getMemoryLimit(): int {
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$iniValue = trim(ini_get('memory_limit'));
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if ($iniValue === '-1') {
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return -1;
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} elseif (is_numeric($iniValue) === true) {
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return (int)$iniValue;
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} else {
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return $this->memoryLimitToBytes($iniValue);
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}
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}
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/**
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* Converts the ini memory limit to bytes.
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*
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* @param string $memoryLimit The "memory_limit" ini value
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* @return int
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*/
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private function memoryLimitToBytes(string $memoryLimit): int {
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$last = strtolower(substr($memoryLimit, -1));
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$memoryLimit = (int)substr($memoryLimit, 0, -1);
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// intended fall trough
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switch ($last) {
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case 'g':
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$memoryLimit *= 1024;
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// no break
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case 'm':
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$memoryLimit *= 1024;
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// no break
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case 'k':
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$memoryLimit *= 1024;
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}
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return $memoryLimit;
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}
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}
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