protected function doGetStats()
{
$this->checkAuthorization();
$info = xcache_info(XC_TYPE_VAR, 0);
return [Cache::STATS_HITS => $info['hits'], Cache::STATS_MISSES => $info['misses'], Cache::STATS_UPTIME => null, Cache::STATS_MEMORY_USAGE => $info['size'], Cache::STATS_MEMORY_AVAILABLE => $info['avail']];
}