Example #1
0
        private void updateFileHeaderInfo()
        {
            byte[] data = new byte[8];

            //save the "allRecordsLength" value
            BitConverterEx.SetBytes(_allRecordsLength, data, 0);
            _fileStream.Seek(20, SeekOrigin.Begin);
            _fileStream.Write(data, 0, 8);
            _fileStream.Flush();
        }
Example #2
0
        private void combineRecordHeader(byte[] header,
                                         int dataAreaLength, int contentLength, long nextRecordStartPosition)
        {
            //record header mark
            for (int idx = 0; idx < 4; idx++)
            {
                header[idx] = 0xff;
            }

            BitConverterEx.SetBytes(dataAreaLength, header, 4);
            BitConverterEx.SetBytes(contentLength, header, 8);
            BitConverterEx.SetBytes(nextRecordStartPosition, header, 12);
        }
Example #3
0
        /// <summary>
        /// Rebuild binary data file
        /// </summary>
        private static void RebuildDataFile(string dataFile)
        {
            FileStream stream = new FileStream(
                dataFile, FileMode.Create, FileAccess.Write);

            //the file header total length is 512 byte
            byte[] header = new byte[512];

            string headerName             = "KWY/TCD";
            int    headerVersion          = 10;
            long   headerAllRecordsLength = header.Length;

            BitConverterEx.SetBytes(headerName, header, 0, 16, Encoding.ASCII); //header segment: Name offset=0
            BitConverterEx.SetBytes(headerVersion, header, 16);                 //header segment: Version offset=16
            BitConverterEx.SetBytes(headerAllRecordsLength, header, 20);        //header segment: AllRecordsLength offset=20
            stream.Write(header, 0, header.Length);
            stream.Close();
        }