public MetadataPartition(UdfContext context, LogicalVolumeDescriptor volumeDescriptor,
MetadataPartitionMap partitionMap)
: base(context, volumeDescriptor)
{
_partitionMap = partitionMap;
PhysicalPartition physical = context.PhysicalPartitions[partitionMap.PartitionNumber];
long fileEntryPos = partitionMap.MetadataFileLocation * (long)volumeDescriptor.LogicalBlockSize;
byte[] entryData = StreamUtilities.ReadExact(physical.Content, fileEntryPos, _context.PhysicalSectorSize);
if (!DescriptorTag.IsValid(entryData, 0))
{
throw new IOException("Invalid descriptor tag looking for Metadata file entry");
}
DescriptorTag dt = EndianUtilities.ToStruct <DescriptorTag>(entryData, 0);
if (dt.TagIdentifier == TagIdentifier.ExtendedFileEntry)
{
ExtendedFileEntry efe = EndianUtilities.ToStruct <ExtendedFileEntry>(entryData, 0);
_metadataFile = new File(context, physical, efe, _volumeDescriptor.LogicalBlockSize);
}
else
{
throw new NotImplementedException("Only EFE implemented for Metadata file entry");
}
}
public Type1Partition(UdfContext context, LogicalVolumeDescriptor volumeDescriptor,
Type1PartitionMap partitionMap)
: base(context, volumeDescriptor)
{
_partitionMap = partitionMap;
_physical = context.PhysicalPartitions[partitionMap.PartitionNumber];
}