xcache.php

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<?php
defined('XOOPS_ROOT_PATH') or die('Restricted access');

class XoopsCacheXcache extends XoopsCacheEngine
{
    var $settings = array();

    function init($settings)
    {
        parent::init($settings);
        $defaults = array('PHP_AUTH_USER' => 'cake' , 'PHP_AUTH_PW' => 'cake');
        $this->settings = array_merge($defaults, $this->settings);
        return function_exists('xcache_info');
    }

    function write($key, &$value, $duration)
    {
        return xcache_set($key, $value, $duration);
    }

    function read($key)
    {
        if (xcache_isset($key)) {
            return xcache_get($key);
        }
        return false;
    }

    function delete($key)
    {
        return xcache_unset($key);
    }

    function clear()
    {
        $result = true;
        $this->__auth();
        for ($i = 0, $max = xcache_count(XC_TYPE_VAR); $i < $max; $i++) {
            if (!xcache_clear_cache(XC_TYPE_VAR, $i)) {
                $result = false;
                break;
            }
        }
        $this->__auth(true);
        return $result;
    }

    function __auth($reverse = false)
    {
        static $backup = array();
        $keys = array('PHP_AUTH_USER' , 'PHP_AUTH_PW');
        foreach ($keys as $key) {
            if ($reverse) {
                if (isset($backup[$key])) {
                    $_SERVER[$key] = $backup[$key];
                    unset($backup[$key]);
                } else {
                    unset($_SERVER[$key]);
                }
            } else {
                $value = env($key);
                if (!empty($value)) {
                    $backup[$key] = $value;
                }
                $varName = '__' . $key;
                $_SERVER[$key] = $this->settings[$varName];
            }
        }
    }
}

?>