151 lines
4.1 KiB
PHP

<?php
/**
*
* This file is part of phpFastCache.
*
* @license MIT License (MIT)
*
* For full copyright and license information, please see the docs/CREDITS.txt file.
*
* @author Khoa Bui (khoaofgod) <khoaofgod@gmail.com> http://www.phpfastcache.com
* @author Georges.L (Geolim4) <contact@geolim4.com>
*
*/
namespace phpFastCache\Drivers\Xcache;
use phpFastCache\Core\Pool\DriverBaseTrait;
use phpFastCache\Core\Pool\ExtendedCacheItemPoolInterface;
use phpFastCache\Entities\DriverStatistic;
use phpFastCache\Exceptions\phpFastCacheDriverCheckException;
use phpFastCache\Exceptions\phpFastCacheDriverException;
use phpFastCache\Exceptions\phpFastCacheInvalidArgumentException;
use Psr\Cache\CacheItemInterface;
/**
* Class Driver
* @package phpFastCache\Drivers
*/
class Driver implements ExtendedCacheItemPoolInterface
{
use DriverBaseTrait;
/**
* Driver constructor.
* @param array $config
* @throws phpFastCacheDriverException
*/
public function __construct(array $config = [])
{
$this->setup($config);
if (!$this->driverCheck()) {
throw new phpFastCacheDriverCheckException(sprintf(self::DRIVER_CHECK_FAILURE, $this->getDriverName()));
}
}
/**
* @return bool
*/
public function driverCheck()
{
return extension_loaded('xcache') && function_exists('xcache_get');
}
/**
* @param \Psr\Cache\CacheItemInterface $item
* @return mixed
* @throws phpFastCacheInvalidArgumentException
*/
protected function driverWrite(CacheItemInterface $item)
{
/**
* Check for Cross-Driver type confusion
*/
if ($item instanceof Item) {
return xcache_set($item->getKey(), $this->encode($this->driverPreWrap($item)), $item->getTtl());
} else {
throw new phpFastCacheInvalidArgumentException('Cross-Driver type confusion detected');
}
}
/**
* @param \Psr\Cache\CacheItemInterface $item
* @return null|array
*/
protected function driverRead(CacheItemInterface $item)
{
$data = $this->decode(xcache_get($item->getKey()));
if ($data === false || $data === '') {
return null;
}
return $data;
}
/**
* @param \Psr\Cache\CacheItemInterface $item
* @return bool
* @throws phpFastCacheInvalidArgumentException
*/
protected function driverDelete(CacheItemInterface $item)
{
/**
* Check for Cross-Driver type confusion
*/
if ($item instanceof Item) {
return xcache_unset($item->getKey());
} else {
throw new phpFastCacheInvalidArgumentException('Cross-Driver type confusion detected');
}
}
/**
* @return bool
*/
protected function driverClear()
{
$cnt = xcache_count(XC_TYPE_VAR);
for ($i = 0; $i < $cnt; $i++) {
xcache_clear_cache(XC_TYPE_VAR, $i);
}
return true;
}
/**
* @return bool
*/
protected function driverConnect()
{
return true;
}
/********************
*
* PSR-6 Extended Methods
*
*******************/
/**
* @return DriverStatistic
*/
public function getStats()
{
if (!ini_get('xcache.admin.enable_auth')) {
$info = xcache_info(XC_TYPE_VAR, 0);
return (new DriverStatistic())
->setSize(abs($info[ 'size' ] - $info[ 'avail' ]))
->setData(implode(', ', array_keys($this->itemInstances)))
->setInfo(sprintf("Xcache v%s with following modules loaded:\n %s", XCACHE_VERSION, str_replace(' ', ', ', XCACHE_MODULES)))
->setRawData($info);
} else {
throw new \RuntimeException("PhpFastCache is not able to read Xcache configuration. Please put this to your php.ini:\n
[xcache.admin]
xcache.admin.enable_auth = Off\n
Then reboot your webserver and make sure that the native Xcache ini configuration file does not override your setting.");
}
}
}