public void SetLastEntry(ulong committedTransactionID, ulong pendingTransactionID)
{
if (m_logEntries.Count > 0)
{
m_logEntries.RemoveAt(m_logEntries.Count - 1);
}
KernelUpdateLogEntry entry = new KernelUpdateLogEntry();
entry.Status = KernelUpdateLogEntryStatus.Commit;
entry.CommittedTransactionID = committedTransactionID;
entry.PendingTransactionID = pendingTransactionID;
m_logEntries.Add(entry);
}
private List <KernelUpdateLogEntry> m_logEntries = new List <KernelUpdateLogEntry>(); // PendingTransactionID, CommitTransactionID
public KernelUpdateLogPage(byte[] buffer)
{
Signature = ByteReader.ReadAnsiString(buffer, 0x00, 4);
UnknownTransactionID = BigEndianConverter.ToUInt64(buffer, 0x04);
SequenceNumber = BigEndianConverter.ToUInt32(buffer, 0x0C);
NumberOfPages = BigEndianConverter.ToUInt32(buffer, 0x10);
PageIndex = BigEndianConverter.ToUInt32(buffer, 0x14);
// Note: for the first KLog, the most recent entry is at the top
m_logEntries.Clear();
int offset = 0x18;
while (offset < buffer.Length - 24) // room of one more entry
{
KernelUpdateLogEntryStatus status = (KernelUpdateLogEntryStatus)buffer[offset];
offset += 1;
if (status != KernelUpdateLogEntryStatus.NotExist)
{
KernelUpdateLogEntry entry = new KernelUpdateLogEntry();
entry.Status = status;
entry.CommittedTransactionID = BigEndianConverter.ToUInt64(buffer, offset);
offset += 8;
entry.PendingTransactionID = BigEndianConverter.ToUInt64(buffer, offset);
offset += 8;
entry.RecoverySequenceNumber = BigEndianConverter.ToUInt32(buffer, offset);
offset += 4;
m_logEntries.Add(entry);
offset += 3; // padding to align to 4-byte boundary
}
else
{
break;
}
}
}
