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