public static void RemoveIntegrityStream(FileInfo file)
{
if (!ReFS.HasIntegrityStream(file))
{
return;
} //cancel if file has no integrity stream
using (var handle = NativeMethods.CreateFile(file.FullName, NativeMethods.GENERIC_READ | NativeMethods.GENERIC_WRITE, FileShare.None, IntPtr.Zero, FileMode.Open, 0, IntPtr.Zero)) {
RemoveIntegrityStream(handle);
}
}
private bool CreateVhd()
{
using (var stream = new FileStream(this.FileName, FileMode.CreateNew, FileAccess.ReadWrite, FileShare.None, 1, FileOptions.WriteThrough)) {
ReFS.RemoveIntegrityStream(stream.SafeFileHandle);
var footer = new HardDiskFooter();
footer.BeginUpdate();
footer.CreatorApplication = VhdCreatorApplication.JosipMedvedVhdAttach;
footer.CreatorVersion = Medo.Reflection.EntryAssembly.Version;
footer.SetSize((UInt64)this.SizeInBytes);
footer.OriginalSize = footer.CurrentSize;
footer.DiskType = VhdDiskType.FixedHardDisk;
footer.EndUpdate();
var lastReport = DateTime.UtcNow;
byte[] buffer = new byte[Settings.WriteBufferSize];
ulong remaining = footer.CurrentSize;
while (remaining > 0)
{
if (bgw.CancellationPending)
{
stream.Dispose();
File.Delete(this.FileName);
return(false);
}
ulong count = (ulong)buffer.Length;
if ((ulong)count > remaining)
{
count = remaining;
}
stream.Write(buffer, 0, (int)count);
remaining -= count;
if (lastReport.AddSeconds(1) < DateTime.UtcNow)
{
bgw.ReportProgress(100 - (int)(remaining * 100 / footer.CurrentSize));
lastReport = DateTime.UtcNow;
}
}
buffer = footer.Bytes;
stream.Write(buffer, 0, buffer.Length);
}
return(true);
}
public static void RemoveIntegrityStream(SafeFileHandle handle)
{
if (!ReFS.HasIntegrityStream(handle))
{
return;
} //cancel if file has no integrity stream
var oldInfo = new NativeMethods.FSCTL_GET_INTEGRITY_INFORMATION_BUFFER();
var oldInfoSizeReturn = 0;
if (!NativeMethods.DeviceIoControl(handle, NativeMethods.FSCTL_GET_INTEGRITY_INFORMATION, IntPtr.Zero, 0, ref oldInfo, Marshal.SizeOf(oldInfo), out oldInfoSizeReturn, IntPtr.Zero))
{
try {
throw new Win32Exception();
} catch (Win32Exception ex) {
throw new InvalidOperationException(ex.Message, ex);
}
}
if (oldInfo.ChecksumAlgorithm == NativeMethods.CHECKSUM_TYPE_NONE)
{
return;
} //already done
var newInfo = new NativeMethods.FSCTL_SET_INTEGRITY_INFORMATION_BUFFER()
{
ChecksumAlgorithm = NativeMethods.CHECKSUM_TYPE_NONE, Flags = oldInfo.Flags
};
var newInfoSizeReturn = 0;
if (!NativeMethods.DeviceIoControl(handle, NativeMethods.FSCTL_SET_INTEGRITY_INFORMATION, ref newInfo, Marshal.SizeOf(newInfo), IntPtr.Zero, 0, out newInfoSizeReturn, IntPtr.Zero))
{
try {
throw new Win32Exception();
} catch (Win32Exception ex) {
throw new InvalidOperationException(ex.Message, ex);
}
}
}
private void bwAction_DoWork(object sender, System.ComponentModel.DoWorkEventArgs e)
{
ReFS.RemoveIntegrityStream(this.File);
}