Deveel.Data.Store.StoreBase.GetPreviousAreaHeader C# (CSharp) 메소드

        private long GetPreviousAreaHeader(long offset, long[] header)
        {
            // If the offset is the start of the file area
            if (offset == DataAreaOffset) {
                // Return a 0 sized block
                header[0] = 0;
                return -1;
            }

            Read(offset - 8, headerBuf, 0, 8);
            long sz = BytesUtil.ReadInt8(headerBuf, 0);
            sz = sz & ActiveFlag;
            long previousPointer = offset - sz;
            Read(previousPointer, headerBuf, 0, 8);
            header[0] = BytesUtil.ReadInt8(headerBuf, 0);
            return previousPointer;
        }