Lock::isFree

public function isFree($name)
{
	$result = false;
	$row = $this->connection->queryScalar('SELECT ID FROM ' . LockTable::getTableName() . ' WHERE ID='' . $this->sqlHelper->forSql($name, 255) . '' AND LOCK_TIME >= NOW()');

	if($row == NULL)
	{
		$result = true;
	}

	return $result;
}