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generated by cgit v1.2.1 (git 2.21.0) at 2026-04-07 05:45:00 +0000

<?php
/**
*
* This file is part of the phpBB Forum Software package.
*
* @copyright (c) phpBB Limited <https://www.phpbb.com>
* @license GNU General Public License, version 2 (GPL-2.0)
*
* For full copyright and license information, please see
* the docs/CREDITS.txt file.
*
*/

namespace phpbb\cache\driver;

/**
* ACM for XCache
*
* To use this module you need ini_get() enabled and the following INI settings configured as follows:
* - xcache.var_size > 0
* - xcache.admin.enable_auth = off (or xcache.admin.user and xcache.admin.password set)
*
*/
class xcache extends \phpbb\cache\driver\memory
{
	var $extension = 'XCache';

	function __construct()
	{
		parent::__construct();

		if (!function_exists('ini_get') || (int) ini_get('xcache.var_size') <= 0)
		{
			trigger_error('Increase xcache.var_size setting above 0 or enable ini_get() to use this ACM module.', E_USER_ERROR);
		}
	}

	/**
	* {@inheritDoc}
	*/
	function purge()
	{
		// Run before for XCache, if admin functions are disabled it will terminate execution
		parent::purge();

		// If the admin authentication is enabled but not set up, this will cause a nasty error.
		// Not much we can do about it though.
		$n = xcache_count(XC_TYPE_VAR);

		for ($i = 0; $i < $n; $i++)
		{
			xcache_clear_cache(XC_TYPE_VAR, $i);
		}
	}

	/**
	* Fetch an item from the cache
	*
	* @access protected
	* @param string $var Cache key
	* @return mixed Cached data
	*/
	function _read($var)
	{
		$result = xcache_get($this->key_prefix . $var);

		return ($result !== null) ? $result : false;
	}

	/**
	* Store data in the cache
	*
	* @access protected
	* @param string $var Cache key
	* @param mixed $data Data to store
	* @param int $ttl Time-to-live of cached data
	* @return bool True if the operation succeeded
	*/
	function _write($var, $data, $ttl = 2592000)
	{
		return xcache_set($this->key_prefix . $var, $data, $ttl);
	}

	/**
	* Remove an item from the cache
	*
	* @access protected
	* @param string $var Cache key
	* @return bool True if the operation succeeded
	*/
	function _delete($var)
	{
		return xcache_unset($this->key_prefix . $var);
	}

	/**
	* Check if a cache var exists
	*
	* @access protected
	* @param string $var Cache key
	* @return bool True if it exists, otherwise false
	*/
	function _isset($var)
	{
		return xcache_isset($this->key_prefix . $var);
	}
}