/**
* Calculates the lifetime remaining for a cache object.
*
* @param string $filename The file to calculate the remaining lifetime for
* @param bool $useApc Use APC or not
* @return int The remaining lifetime in seconds (0 if no time remaining)
*/
public function calcLifetime($filename, $useApc = false)
{
return parent::calcLifetime($filename, $useApc);
}
