private void initialize(IEnumerable <string> paths)
{
var vss = VssUtils.LoadImplementation();
Volumes = new ReadOnlyDictionary <string, VolumeShadowCopyVol>(paths.ToDictionary(k => k, k => new VolumeShadowCopyVol {
Path = k
}));
foreach (var vol in Volumes.Values)
{
if (!Volume.IsVolume(vol.Path))
{
throw new ArgumentException(String.Format("{0} is not a valid volume.", vol.Path), nameof(paths));
}
vol.UniquePath = Volume.GetUniqueVolumeNameForPath(vol.Path) ?? vol.Path;
vol.DisplayPath = GetDisplayNameForVolume(vol.UniquePath);
}
var context = VssSnapshotContext.Backup;
var contextAttr = (VssVolumeSnapshotAttributes)context;
bkpComponents = vss.CreateVssBackupComponents();
bkpComponents.InitializeForBackup(null);
if (context != VssSnapshotContext.Backup)
{
bkpComponents.SetContext(context);
}
bkpComponents.SetBackupState(true, true, VssBackupType.Full, false);
Program.LogDebug("Gathering writer metadata...");
using (var result = bkpComponents.BeginGatherWriterMetadata(null, null))
result.AsyncWaitHandle.WaitOne();
writers = new List <VssWriterDescriptor>(bkpComponents.WriterMetadata.Select(wm => new VssWriterDescriptor(wm)));
SelectComponentsForBackup(Volumes.Values.Select(v => v.Path), bkpComponents, writers);
var snapshotSetId = bkpComponents.StartSnapshotSet();
foreach (var vol in Volumes.Values)
{
Program.LogDebug($"Adding volume {vol.Path} [aka {vol.DisplayPath}, unique {vol.UniquePath}]...");
bkpComponents.AddToSnapshotSet(vol.UniquePath);
}
bkpComponents.PrepareForBackup();
EnsureNoWritersFailed(bkpComponents, writers);
Program.LogDebug("Creating the shadow copy...");
bkpComponents.DoSnapshotSet();
_needsCleanup = true;
EnsureNoWritersFailed(bkpComponents, writers);
Program.LogDebug(" done.");
var snapshots = bkpComponents.QuerySnapshots();
foreach (var vol in Volumes.Values)
{
var snap = snapshots.Where(s => string.Equals(s.OriginalVolumeName, vol.UniquePath, StringComparison.OrdinalIgnoreCase)).MaxElement(s => s.CreationTimestamp);
vol.SnapshotPath = snap.SnapshotDeviceObject;
Program.LogDebug($"Volume {vol.Path} [aka {vol.DisplayPath}, unique {vol.UniquePath}] snapshot UNC: {vol.SnapshotPath}");
}
}
