/// <summary>
/// Stream constructor.
/// </summary>
/// <param name="stream">The stream that contains the DirectorySector data.</param>
public DirectorySector(Stream stream)
{
Debug.Assert(stream.Length >= Constants.SECTOR_SIZE);
for(int i = 0; i < _entries.Length; ++i)
_entries[i] = new DirectorySectorEntry(stream);
}
/// <summary>
/// Stream constructor.
/// </summary>
/// <param name="stream">The stream that contains the DirectorySector data.</param>
public DirectorySector(Stream stream)
{
Debug.Assert(stream.Length >= Constants.SECTOR_SIZE);
for (int i = 0; i < _entries.Length; ++i)
{
_entries[i] = new DirectorySectorEntry(stream);
}
}
/// <summary>
/// Builds a directory entry and populates its correct type, children and siblings.
/// </summary>
/// <param name="entry">The directory sector entry.</param>
/// <param name="entries">The current entries.</param>
/// <param name="sectors">The data sectors.</param>
/// <param name="fat">The FAT.</param>
/// <returns>The correct DirectoryEntry object.</returns>
public static DirectoryEntry CreateEntry(DirectorySectorEntry entry,
DirectorySectorEntryCollection entries,
SectorCollection sectors,
Sect[] fat)
{
DirectoryEntry newEntry = null;
switch(entry.Type)
{
case Stgty.Storage :
newEntry = new StorageEntry(entry.Name);
break;
case Stgty.Stream :
newEntry = new StreamEntry(entry.Name, entry.Size, entry.SectStart, sectors, fat);
break;
default:
newEntry = new GenericDirectoryEntry(entry.Name, entry.Type);
break;
}
if(!entry.LeftSibling.IsEof)
newEntry.LeftSibling = CreateEntry(entries[entry.LeftSibling],
entries,
sectors,
fat);
if(!entry.RightSibling.IsEof)
newEntry.RightSibling = CreateEntry(entries[entry.RightSibling],
entries,
sectors,
fat);
if(!entry.Child.IsEof)
newEntry.Child = CreateEntry(entries[entry.Child],
entries,
sectors,
fat);
return newEntry;
}
