/**
* Give (if possible) an extra lifetime to the given cache id
*
* @param string $id cache id
* @param int $extraLifetime
* @return boolean true if ok
*/
public function touch($id, $extraLifetime)
{
list($inf) = $this->_redis->hGet(self::PREFIX_KEY . $id, self::FIELD_INF);
if ($inf === '0') {
$expireAt = time() + $this->_redis->ttl(self::PREFIX_KEY . $id) + $extraLifetime;
return (bool) $this->_redis->expireAt(self::PREFIX_KEY . $id, $expireAt);
}
return false;
}