/// <summary>
/// Gets the next stream.
/// </summary>
/// <returns>The next substream</returns>
/// <exception cref="InvalidOperationException">The previous stream is still open</exception>
public Stream GetNextStream()
{
if (_openReader != null)
{
throw new InvalidOperationException();
}
else if (_next >= _items.Count)
{
return(null);
}
MultiStreamItemHeader header = _items[_next++];
MultipleSubStreamReader reader = new MultipleSubStreamReader(this, BaseStream, header);
Stream s = reader;
if (0 != (header.ItemType & MultiStreamItemHeader.AssuredFlag))
{
s = new AssuredSubStream(s, _verificationMode);
}
if (0 != (header.ItemType & MultiStreamItemHeader.ZippedFlag))
{
s = new ZLibSubStream(s, System.IO.Compression.CompressionMode.Decompress);
}
_openReader = reader;
return(s);
}
internal void CloseStream(MultipleSubStreamReader multiSubStreamReader)
{
if (_openReader != multiSubStreamReader)
{
throw new InvalidOperationException();
}
_openReader = null;
}
