typedef long int;
typedef long Ret;
typedef long String;

interface FConf
{
	Ret Lock();
	Ret Unlock();
	Ret Remove(in String xpath);
	Ret Set(in String xpath, in String value);
	Ret Get(in String xpath, out String value);
	Ret GetChildCount(in String xpath, out int count);
	Ret GetChild(in String xpath, in int index, out String child);
};