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classes/cache/CacheXcache.php

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+<?php
+/**
+ * Copyright since 2007 PrestaShop SA and Contributors
+ * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
+ *
+ * NOTICE OF LICENSE
+ *
+ * This source file is subject to the Open Software License (OSL 3.0)
+ * that is bundled with this package in the file LICENSE.md.
+ * It is also available through the world-wide-web at this URL:
+ * https://opensource.org/licenses/OSL-3.0
+ * If you did not receive a copy of the license and are unable to
+ * obtain it through the world-wide-web, please send an email
+ * to license@prestashop.com so we can send you a copy immediately.
+ *
+ * DISCLAIMER
+ *
+ * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
+ * versions in the future. If you wish to customize PrestaShop for your
+ * needs please refer to https://devdocs.prestashop.com/ for more information.
+ *
+ * @author    PrestaShop SA and Contributors <contact@prestashop.com>
+ * @copyright Since 2007 PrestaShop SA and Contributors
+ * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
+ */
+
+/**
+ * This class require Xcache extension.
+ *
+ * @since 1.5.0
+ */
+class CacheXcacheCore extends Cache
+{
+    public function __construct()
+    {
+        $this->keys = xcache_get(self::KEYS_NAME);
+        if (!is_array($this->keys)) {
+            $this->keys = [];
+        }
+    }
+
+    /**
+     * @see Cache::_set()
+     */
+    protected function _set($key, $value, $ttl = 0)
+    {
+        $result = xcache_set($key, $value, $ttl);
+
+        if ($result === false) {
+            $this->setAdjustTableCacheSize(true);
+        }
+
+        return $result;
+    }
+
+    /**
+     * @see Cache::_get()
+     */
+    protected function _get($key)
+    {
+        return xcache_isset($key) ? xcache_get($key) : false;
+    }
+
+    /**
+     * @see Cache::_exists()
+     */
+    protected function _exists($key)
+    {
+        return xcache_isset($key);
+    }
+
+    /**
+     * @see Cache::_delete()
+     */
+    protected function _delete($key)
+    {
+        return xcache_unset($key);
+    }
+
+    /**
+     * @see Cache::_writeKeys()
+     */
+    protected function _writeKeys()
+    {
+        xcache_set(self::KEYS_NAME, $this->keys);
+    }
+
+    /**
+     * @see Cache::flush()
+     */
+    public function flush()
+    {
+        $this->delete('*');
+
+        return true;
+    }
+}