protected override void Cleanup(Mapper.Context context)
{
if (checksumCounter != null)
{
checksumCounter.Increment(total.GetLow8());
}
}
/// <summary>
/// Generate an ascii record suitable for all sort benchmarks including
/// PennySort.
/// </summary>
internal static void GenerateAsciiRecord(byte[] recBuf, Unsigned16 rand, Unsigned16
recordNumber)
{
/* generate the 10-byte ascii key using mostly the high 64 bits.
*/
long temp = rand.GetHigh8();
if (temp < 0)
{
// use biginteger to avoid the negative sign problem
BigInteger bigTemp = MakeBigInteger(temp);
recBuf[0] = unchecked ((byte)((byte)(' ') + (bigTemp.Mod(NinetyFive))));
temp = bigTemp.Divide(NinetyFive);
}
else
{
recBuf[0] = unchecked ((byte)((byte)(' ') + (temp % 95)));
temp /= 95;
}
for (int i = 1; i < 8; ++i)
{
recBuf[i] = unchecked ((byte)((byte)(' ') + (temp % 95)));
temp /= 95;
}
temp = rand.GetLow8();
if (temp < 0)
{
BigInteger bigTemp = MakeBigInteger(temp);
recBuf[8] = unchecked ((byte)((byte)(' ') + (bigTemp.Mod(NinetyFive))));
temp = bigTemp.Divide(NinetyFive);
}
else
{
recBuf[8] = unchecked ((byte)((byte)(' ') + (temp % 95)));
temp /= 95;
}
recBuf[9] = unchecked ((byte)((byte)(' ') + (temp % 95)));
/* add 2 bytes of "break" */
recBuf[10] = (byte)(' ');
recBuf[11] = (byte)(' ');
/* convert the 128-bit record number to 32 bits of ascii hexadecimal
* as the next 32 bytes of the record.
*/
for (int i_1 = 0; i_1 < 32; i_1++)
{
recBuf[12 + i_1] = unchecked ((byte)recordNumber.GetHexDigit(i_1));
}
/* add 2 bytes of "break" data */
recBuf[44] = (byte)(' ');
recBuf[45] = (byte)(' ');
/* add 52 bytes of filler based on low 48 bits of random number */
for (int i_2 = 0; i_2 < 13; ++i_2)
{
recBuf[46 + i_2 * 4] = recBuf[47 + i_2 * 4] = recBuf[48 + i_2 * 4] = recBuf[49 +
i_2 * 4] = unchecked ((byte)rand.GetHexDigit(19 + i_2));
}
/* add 2 bytes of "break" data */
recBuf[98] = (byte)('\r');
/* nice for Windows */
recBuf[99] = (byte)('\n');
}