public BitArray GetClusterUsage()
{
if (vhd.masterBootRecord.partition[Partition].PartitionType != 7)
{
return(null);
}
try
{
DiscUtils.VolumeManager volMgr = new VolumeManager();
using (VirtualDisk virtualDisk = VirtualDisk.OpenDisk(vhd.footer.FileName, FileAccess.Read))
{
volMgr.AddDisk(virtualDisk);
using (Stream partitionStream = volMgr.GetPhysicalVolumes()[Partition].Open())
{
//if (!string.IsNullOrEmpty(VolumeId))
//{
// partitionStream = volMgr.GetVolume(VolumeId).Open();
//}
//else if (Partition >= 0)
//{
// partitionStream = volMgr.GetPhysicalVolumes()[Partition].Open();
//}
//else
//{
// partitionStream = volMgr.GetLogicalVolumes()[0].Open();
//}
SparseStream cacheStream = SparseStream.FromStream(partitionStream, Ownership.None);
cacheStream = new BlockCacheStream(cacheStream, Ownership.None);
try
{
fs = new NtfsFileSystem(cacheStream);
}
catch
{
cacheStream.Dispose();
return(null);
}
fs.NtfsOptions.HideHiddenFiles = false;
fs.NtfsOptions.HideSystemFiles = false;
fs.NtfsOptions.HideMetafiles = false;
BitArray ba = fs.BuildClusterBitArray();
fs.Dispose();
cacheStream.Dispose();
partitionStream.Dispose();
ClusterBitArray = ba;
}
}
}
catch (VhdReadException ex)
{
this.vhd.vhdReadException = ex;
return(null);
}
return(ClusterBitArray);
/*
* ClusterMap clusterMap = null;
* try
* {
* clusterMap = fs.BuildClusterMap();
* }
* catch (IOException ex)
* {
* // TODO: Need to some error notfication
* // MessageBox.Show(ex.Message, "Exception");
* return null;
* }
*
*
* BitArray ba = new BitArray((int)fs.TotalClusters);
*/
//UsedClusters = 0;
//FreeClusters = 0;
//TotalClusters = fs.TotalClusters;
//for (int i = 0; i < TotalClusters; i++)
//{
// if (clusterMap.ClusterToPaths(i).Length > 0)
// {
// UsedClusters++;
// ba.Set(i, true);
// }
// else
// {
// FreeClusters++;
// }
//}
/*
* ClusterForm cf = new ClusterForm();
* cf.Icon = Icon;
* cf.Text = Text + " - Cluster Map";
* cf.clusterBitmaps1.Clusters = ba;
* cf.Show();
*/
//cf.clusterBitmaps1.GradientStart = Color.WhiteSmoke;
//cf.clusterBitmaps1.GradientEnd = Color.Black;
//cf.clusterBitmaps1.GradientSteps = 8;
}
