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<?php
/**
* Copyright (c) 2012 Bart Visscher <bartv@thisnet.nl>
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OC\Memcache;
class XCache extends Cache {
/**
* entries in XCache gets namespaced to prevent collisions between ownCloud instances and users
*/
protected function getNameSpace() {
return $this->prefix;
}
public function get($key) {
return xcache_get($this->getNamespace().$key);
}
public function set($key, $value, $ttl=0) {
if($ttl>0) {
return xcache_set($this->getNamespace().$key, $value, $ttl);
}else{
return xcache_set($this->getNamespace().$key, $value);
}
}
public function hasKey($key) {
return xcache_isset($this->getNamespace().$key);
}
public function remove($key) {
return xcache_unset($this->getNamespace().$key);
}
public function clear($prefix='') {
if (function_exists('xcache_unset_by_prefix')) {
xcache_unset_by_prefix($this->getNamespace().$prefix);
} else {
// Since we can not clear by prefix, we just clear the whole cache.
xcache_clear_cache(\XC_TYPE_VAR, 0);
}
return true;
}
static public function isAvailable(){
if (!extension_loaded('xcache')) {
return false;
}
if (\OC::$CLI) {
return false;
}
if (!function_exists('xcache_unset_by_prefix') && ini_get('xcache.admin.enable_auth')) {
// We do not want to use xCache if we can not clear it without
// using the administration function xcache_clear_cache()
// AND administration functions are password-protected.
return false;
}
return true;
}
}
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