public static LfsRestartPage Create(long fileSize, int bytesPerSystemPage, int bytesPerLogPage, params LfsClientRecord[] clients)
{
LfsRestartPage restartPage = new LfsRestartPage();
restartPage.LogPageSize = (uint)bytesPerLogPage;
restartPage.RestartArea.CurrentLsn = 0;
restartPage.RestartArea.LastLsnDataLength = 0;
restartPage.RestartArea.ClientFreeList = LfsRestartArea.NoClient;
restartPage.RestartArea.ClientInUseList = (clients.Length > 0) ? (ushort)0 : LfsRestartArea.NoClient;
restartPage.RestartArea.Flags = LfsRestartFlags.CleanDismount;
restartPage.RestartArea.FileSize = (ulong)fileSize;
restartPage.RestartArea.FileSizeBits = LfsRestartArea.CalculateFileSizeBits(fileSize);
restartPage.RestartArea.LogPageDataOffset = (ushort)LfsRecordPage.GetDataOffset(bytesPerLogPage);
if (clients.Length > 0)
{
clients[0].PrevClient = LfsRestartArea.NoClient;
clients[clients.Length - 1].NextClient = LfsRestartArea.NoClient;
}
for (int index = 1; index < clients.Length; index++)
{
clients[index].PrevClient = (ushort)(index - 1);
}
restartPage.RestartArea.LogClientArray.AddRange(clients);
return(restartPage);
}
public LfsRestartPage(byte[] buffer, int offset)
{
MultiSectorHeader multiSectorHeader = new MultiSectorHeader(buffer, offset + 0x00);
if (multiSectorHeader.Signature != ValidSignature && multiSectorHeader.Signature != ModifiedSignature)
{
throw new InvalidDataException("Invalid RSTR record signature");
}
ChkDskLsn = LittleEndianConverter.ToUInt64(buffer, offset + 0x08);
m_systemPageSize = LittleEndianConverter.ToUInt32(buffer, offset + 0x10);
LogPageSize = LittleEndianConverter.ToUInt32(buffer, offset + 0x14);
ushort restartOffset = LittleEndianConverter.ToUInt16(buffer, offset + 0x18);
MinorVersion = LittleEndianConverter.ToInt16(buffer, offset + 0x1A);
MajorVersion = LittleEndianConverter.ToInt16(buffer, offset + 0x1C);
UpdateSequenceNumber = LittleEndianConverter.ToUInt16(buffer, offset + multiSectorHeader.UpdateSequenceArrayOffset);
RestartArea = new LfsRestartArea(buffer, offset + restartOffset);
}
public LfsRestartPage()
{
RestartArea = new LfsRestartArea();
MinorVersion = 1;
MajorVersion = 1;
}