CacheApc.class.php

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<?php
/* Copyright (C) NAVER <http://www.navercorp.com> */

class CacheApc extends CacheBase
{
    public static $isSupport = false;

    function getInstance($opt = null)
    {
        if(!$GLOBALS['__CacheApc__'])
        {
            $GLOBALS['__CacheApc__'] = new CacheApc();
        }
        return $GLOBALS['__CacheApc__'];
    }

    function __construct()
    {
    }

    function isSupport()
    {
        return self::$isSupport;
    }

    function put($key, $buff, $valid_time = 0)
    {
        if($valid_time == 0)
        {
            $valid_time = $this->valid_time;
        }

        return apc_store(md5(_XE_PATH_ . $key), array($_SERVER['REQUEST_TIME'], $buff), $valid_time);
    }

    function isValid($key, $modified_time = 0)
    {
        $_key = md5(_XE_PATH_ . $key);
        $obj = apc_fetch($_key, $success);
        if(!$success || !is_array($obj))
        {
            return false;
        }
        unset($obj[1]);

        if($modified_time > 0 && $modified_time > $obj[0])
        {
            $this->delete($key);
            return false;
        }

        return true;
    }

    function get($key, $modified_time = 0)
    {
        $_key = md5(_XE_PATH_ . $key);
        $obj = apc_fetch($_key, $success);
        if(!$success || !is_array($obj))
        {
            return false;
        }

        if($modified_time > 0 && $modified_time > $obj[0])
        {
            $this->delete($key);
            return false;
        }

        return $obj[1];
    }

    function delete($key)
    {
        $_key = md5(_XE_PATH_ . $key);
        return apc_delete($_key);
    }

    function truncate()
    {
        return apc_clear_cache('user');
    }

    function _delete($key)
    {
        return $this->delete($key);
    }
}

CacheApc::$isSupport  = function_exists('apc_add');

/* End of file CacheApc.class.php */
/* Location: ./classes/cache/CacheApc.class.php */