public static void init(string dirname)
{
initFileLogAndBufferMgr(dirname);
Transaction tx = new Transaction();
bool isnew = fm.isNew();
if (isnew)
{
System.Console.WriteLine("creating new database...");
}
else
{
System.Console.WriteLine("recovering existing database...");
tx.recover();
}
initMetadataMgr(isnew, tx);
tx.commit();
}