/// <summary>
/// Does the resize operation, based on the parameters specified when method <see cref="ResizeVhdBlob(int, Uri, string, string)"/> was called.
/// Please first call method <see cref="ResizeVhdBlob(int, Uri, string, string)"/> before calling this method.
/// </summary>
/// <returns><see cref="ResizeResult.Success"/> if the resize operation went fine.</returns>
public ResizeResult DoResizeVhdBlob()
{
Console.WriteLine("[{0}] VHD file format fixed, current size {1} bytes.", DateTime.Now.ToShortTimeString(), footerInstance.CurrentSize);
// Expand the blob
Console.WriteLine("[{0}] Resizing containing blob...", DateTime.Now.ToShortTimeString());
blob.Resize((long)NewSize.Bytes + 512L);
// Change footer size values
Console.WriteLine("[{0}] Updating VHD file format footer...", DateTime.Now.ToShortTimeString());
footerInstance.CurrentSize = (long)NewSize.Bytes;
footerInstance.OriginalSize = (long)NewSize.Bytes;
footerInstance.Geometry = Geometry.FromCapacity((long)NewSize.Bytes);
footerInstance.UpdateChecksum();
footer = new byte[512];
footerInstance.ToBytes(footer, 0);
Console.WriteLine("[{0}] New VHD file size {1} bytes, checksum {2}.", DateTime.Now.ToShortTimeString(), footerInstance.CurrentSize, footerInstance.Checksum);
// Write new footer
Console.WriteLine("[{0}] Writing VHD file format footer...", DateTime.Now.ToShortTimeString());
using (var stream = new MemoryStream(footer))
{
blob.WritePages(stream, (long)NewSize.Bytes);
}
// Write 0 values where the footer used to be
if (IsExpand)
{
Console.WriteLine("[{0}] Overwriting the old VHD file footer with zeroes...", DateTime.Now.ToShortTimeString());
blob.ClearPages(originalLength - 512, 512);
}
// Done!
Console.WriteLine("[{0}] Done!", DateTime.Now.ToShortTimeString());
return(ResizeResult.Success);
}
