public SuperBlockProvider(
IStreamProvider aStreamProvider,
FormatSignatureAndVersionInfo aFormatSignatureAndVersionInfo)
{
mrStreamProvider = aStreamProvider;
mrFormatSignatureAndVersionInfo = aFormatSignatureAndVersionInfo;
}
public static bool TryRead(
Stream aInputStream,
out FormatSignatureAndVersionInfo aParsed)
{
//Record where we are
Offset
fLocationAddress = new Offset((ulong)aInputStream.Position);
//Do the Read
byte[]
fReadBuffer = new byte[Length];
if (Length != aInputStream.Read(
fReadBuffer,
0,
Length))
{
aParsed = null;
return(false);
}
// Check the signature
bool
fGoodSignature = true;
for (int fiByte = 0; fiByte < mcFormatSignatureLength; ++fiByte)
{
fGoodSignature &= fReadBuffer[fiByte] == FormatSignature[fiByte];
}
if (!fGoodSignature)
{
aParsed = null;
return(false);
}
//Record the superblock version and move on
aParsed = new FormatSignatureAndVersionInfo(
fReadBuffer[8],
fLocationAddress);
return(true);
}
