private void Flush()
{
if (m_currentPhysicalBlock < 0)
{
return;
}
WriteBlockCount++;
byte *data = (byte *)m_memory.Address + m_blockSize - 32;
data[0] = (byte)BlockType.DataBlock;
data[1] = 0;
*(ushort *)(data + 2) = m_subFile.FileIdNumber;
*(uint *)(data + 4) = m_currentBlockIndex;
*(uint *)(data + 8) = m_header.SnapshotSequenceNumber;
data[32 - 4] = Footer.ChecksumMustBeRecomputed;
Footer.ComputeChecksumAndClearFooter(m_memory.Address, m_blockSize, m_blockSize);
Marshal.Copy(m_memory.Address, m_buffer, 0, m_blockSize);
m_stream.Position = m_currentPhysicalBlock * m_blockSize;
m_stream.Write(m_buffer, 0, m_blockSize);
m_currentPhysicalBlock = -1;
}