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<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace Symfony\Component\Cache\Traits; use Symfony\Component\Cache\CacheItem; use Symfony\Component\Cache\Exception\CacheException; /** * @author Nicolas Grekas <p@tchwork.com> * * @internal */ trait ApcuTrait { public static function isSupported() { return \function_exists('apcu_fetch') && filter_var(ini_get('apc.enabled'), FILTER_VALIDATE_BOOLEAN); } private function init($namespace, $defaultLifetime, $version) { if (!static::isSupported()) { throw new CacheException('APCu is not enabled'); } if ('cli' === \PHP_SAPI) { ini_set('apc.use_request_time', 0); } parent::__construct($namespace, $defaultLifetime); if (null !== $version) { CacheItem::validateKey($version); if (!apcu_exists($version.'@'.$namespace)) { $this->doClear($namespace); apcu_add($version.'@'.$namespace, null); } } } /** * {@inheritdoc} */ protected function doFetch(array $ids) { $unserializeCallbackHandler = ini_set('unserialize_callback_func', __CLASS__.'::handleUnserializeCallback'); try { $values = []; foreach (apcu_fetch($ids, $ok) ?: [] as $k => $v) { if (null !== $v || $ok) { $values[$k] = $v; } } return $values; } catch (\Error $e) { throw new \ErrorException($e->getMessage(), $e->getCode(), E_ERROR, $e->getFile(), $e->getLine()); } finally { ini_set('unserialize_callback_func', $unserializeCallbackHandler); } } /** * {@inheritdoc} */ protected function doHave($id) { return apcu_exists($id); } /** * {@inheritdoc} */ protected function doClear($namespace) { return isset($namespace[0]) && class_exists('APCuIterator', false) && ('cli' !== \PHP_SAPI || filter_var(ini_get('apc.enable_cli'), FILTER_VALIDATE_BOOLEAN)) ? apcu_delete(new \APCuIterator(sprintf('/^%s/', preg_quote($namespace, '/')), APC_ITER_KEY)) : apcu_clear_cache(); } /** * {@inheritdoc} */ protected function doDelete(array $ids) { foreach ($ids as $id) { apcu_delete($id); } return true; } /** * {@inheritdoc} */ protected function doSave(array $values, $lifetime) { try { if (false === $failures = apcu_store($values, null, $lifetime)) { $failures = $values; } return array_keys($failures); } catch (\Throwable $e) { if (1 === \count($values)) { // Workaround https://github.com/krakjoe/apcu/issues/170 apcu_delete(key($values)); } throw $e; } } }
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