/// <summary>
/// Sort-of like a factory method, ForUpdate is used only when
/// the application needs to update the zip entry metadata for
/// a segmented zip file, when the starting segment is earlier
/// than the ending segment, for a particular entry.
/// </summary>
/// <remarks>
/// <para>
/// The update is always contiguous, never rolls over. As a
/// result, this method doesn't need to return a ZSS; it can
/// simply return a FileStream. That's why it's "sort of"
/// like a Factory method.
/// </para>
/// <para>
/// Caller must Close/Dispose the stream object returned by
/// this method.
/// </para>
/// </remarks>
public static Stream ForUpdate(ZipSegmentedStreamManager manager, uint diskNumber)
{
// Console.WriteLine("ZSS: ForUpdate ({0})",
// Path.GetFileName(fname));
// This class assumes that the update will not expand the
// size of the segment. Update is used only for an in-place
// update of zip metadata. It never will try to write beyond
// the end of a segment.
return(manager.OpenSegment(diskNumber, 0, true));
}
private void _SetReadStream()
{
if (_innerStream != null)
{
#if NETCF
_innerStream.Close();
#else
_innerStream.Dispose();
#endif
}
// Console.WriteLine("ZSS: SRS ({0})",
// Path.GetFileName(CurrentName));
_innerStream = _manager.OpenSegment(CurrentSegment, _maxDiskNumber, false);
}
/// <summary>
/// Sort-of like a factory method, ForUpdate is used only when
/// the application needs to update the zip entry metadata for
/// a segmented zip file, when the starting segment is earlier
/// than the ending segment, for a particular entry.
/// </summary>
/// <remarks>
/// <para>
/// The update is always contiguous, never rolls over. As a
/// result, this method doesn't need to return a ZSS; it can
/// simply return a FileStream. That's why it's "sort of"
/// like a Factory method.
/// </para>
/// <para>
/// Caller must Close/Dispose the stream object returned by
/// this method.
/// </para>
/// </remarks>
public static Stream ForUpdate(ZipSegmentedStreamManager manager, uint diskNumber)
{
// Console.WriteLine("ZSS: ForUpdate ({0})",
// Path.GetFileName(fname));
// This class assumes that the update will not expand the
// size of the segment. Update is used only for an in-place
// update of zip metadata. It never will try to write beyond
// the end of a segment.
return manager.OpenSegment(diskNumber, 0, true);
}