public DynamicHeader(long dataOffset, long tableOffset, uint blockSize, long diskSize)
{
Cookie = HeaderCookie;
DataOffset = dataOffset;
TableOffset = tableOffset;
HeaderVersion = Version1;
BlockSize = blockSize;
MaxTableEntries = (int)((diskSize + blockSize - 1) / blockSize);
ParentTimestamp = Footer.EpochUtc;
ParentUnicodeName = string.Empty;
ParentLocators = new ParentLocator[8];
for (int i = 0; i < 8; ++i)
{
ParentLocators[i] = new ParentLocator();
}
}
public DynamicHeader(DynamicHeader toCopy)
{
Cookie = toCopy.Cookie;
DataOffset = toCopy.DataOffset;
TableOffset = toCopy.TableOffset;
HeaderVersion = toCopy.HeaderVersion;
MaxTableEntries = toCopy.MaxTableEntries;
BlockSize = toCopy.BlockSize;
Checksum = toCopy.Checksum;
ParentUniqueId = toCopy.ParentUniqueId;
ParentTimestamp = toCopy.ParentTimestamp;
ParentUnicodeName = toCopy.ParentUnicodeName;
ParentLocators = new ParentLocator[toCopy.ParentLocators.Length];
for (int i = 0; i < ParentLocators.Length; ++i)
{
ParentLocators[i] = new ParentLocator(toCopy.ParentLocators[i]);
}
}
public static DynamicHeader FromBytes(byte[] data, int offset)
{
DynamicHeader result = new DynamicHeader();
result.Cookie = Utilities.BytesToString(data, offset, 8);
result.DataOffset = Utilities.ToInt64BigEndian(data, offset + 8);
result.TableOffset = Utilities.ToInt64BigEndian(data, offset + 16);
result.HeaderVersion = Utilities.ToUInt32BigEndian(data, offset + 24);
result.MaxTableEntries = Utilities.ToInt32BigEndian(data, offset + 28);
result.BlockSize = Utilities.ToUInt32BigEndian(data, offset + 32);
result.Checksum = Utilities.ToUInt32BigEndian(data, offset + 36);
result.ParentUniqueId = Utilities.ToGuidBigEndian(data, offset + 40);
result.ParentTimestamp = Footer.EpochUtc.AddSeconds(Utilities.ToUInt32BigEndian(data, offset + 56));
result.ParentUnicodeName = Encoding.BigEndianUnicode.GetString(data, offset + 64, 512).TrimEnd('\0');
result.ParentLocators = new ParentLocator[8];
for (int i = 0; i < 8; ++i)
{
result.ParentLocators[i] = ParentLocator.FromBytes(data, offset + 576 + (i * 24));
}
return(result);
}