private void Initialize()
{
//fill primary area with empty pages
//set overflow area address
long addrI = 0L, addrM = 0L;
try
{
File.Delete("meta");
}
catch
{
}
IndexUnit.Init(true);
var firstMainPage = new FilePage {
Address = addrM++, Count = 1
};
firstMainPage.Entries[0] = new Tuple <Record, long>(new Record(), -1);
MainWriter.WritePage(firstMainPage);
MainPages = 1;
MainRecordCount = 1;
OverflowAddress = MainWriter.Writer.Position;
OverflowFirstPageNumber = MainReader.PageNumberFromAddress(MainWriter.Writer.Position);
var newPage = new FilePage {
Address = addrM
};
MainWriter.WritePage(newPage);
OverflowEndAddress = MainWriter.Writer.Position;
OverflowPages = 1;
MainWriter.Reset();
Program.MainWrites = 0L;
MetaData.Save();
IndexUnit.WriteIndex();
}
public static void Read()
{
Reader.BaseStream.Position = 0;
Index.MainPages = Reader.ReadInt64();
Index.MainRecordCount = Reader.ReadInt64();
Index.OverflowAddress = Reader.ReadInt64();
Index.OverflowFirstPageNumber = MainReader.PageNumberFromAddress(Index.OverflowAddress);
Index.OverflowPages = Reader.ReadInt64();
Index.OverflowRecordCount = Reader.ReadInt64();
Index.Alpha = Reader.ReadDouble();
Index.MainPageSize = Reader.ReadInt32();
}
