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