/// <summary>Replace the given child with a new child.</summary>
/// <remarks>
/// Replace the given child with a new child. Note that we no longer need to
/// replace an normal INodeDirectory or INodeFile into an
/// INodeDirectoryWithSnapshot or INodeFileUnderConstruction. The only cases
/// for child replacement is for reference nodes.
/// </remarks>
public virtual void ReplaceChild(INode oldChild, INode newChild, INodeMap inodeMap
)
{
Preconditions.CheckNotNull(children);
int i = SearchChildren(newChild.GetLocalNameBytes());
Preconditions.CheckState(i >= 0);
Preconditions.CheckState(oldChild == children[i] || oldChild == children[i].AsReference
().GetReferredINode().AsReference().GetReferredINode());
oldChild = children[i];
if (oldChild.IsReference() && newChild.IsReference())
{
// both are reference nodes, e.g., DstReference -> WithName
INodeReference.WithCount withCount = (INodeReference.WithCount)oldChild.AsReference
().GetReferredINode();
withCount.RemoveReference(oldChild.AsReference());
}
children.Set(i, newChild);
// replace the instance in the created list of the diff list
DirectoryWithSnapshotFeature sf = this.GetDirectoryWithSnapshotFeature();
if (sf != null)
{
sf.GetDiffs().ReplaceChild(Diff.ListType.Created, oldChild, newChild);
}
// update the inodeMap
if (inodeMap != null)
{
inodeMap.Put(newChild);
}
}
public override void Run()
{
try
{
Sharpen.Thread.Sleep(1000);
TestDeleteRace.Log.Info("Deleting" + this.path);
FSDirectory fsdir = this._enclosing.cluster.GetNamesystem().dir;
INode fileINode = fsdir.GetINode4Write(this.path.ToString());
INodeMap inodeMap = (INodeMap)Whitebox.GetInternalState(fsdir, "inodeMap");
this.fs.Delete(this.path, false);
// after deletion, add the inode back to the inodeMap
inodeMap.Put(fileINode);
TestDeleteRace.Log.Info("Deleted" + this.path);
}
catch (Exception e)
{
TestDeleteRace.Log.Info(e);
}
}
/// <exception cref="System.IO.IOException"/>
internal void SerializeINodeSection(OutputStream @out)
{
INodeMap inodesMap = fsn.dir.GetINodeMap();
FsImageProto.INodeSection.Builder b = FsImageProto.INodeSection.NewBuilder().SetLastInodeId
(fsn.dir.GetLastInodeId()).SetNumInodes(inodesMap.Size());
FsImageProto.INodeSection s = ((FsImageProto.INodeSection)b.Build());
s.WriteDelimitedTo(@out);
int i = 0;
IEnumerator <INodeWithAdditionalFields> iter = inodesMap.GetMapIterator();
while (iter.HasNext())
{
INodeWithAdditionalFields n = iter.Next();
Save(@out, n);
++i;
if (i % FSImageFormatProtobuf.Saver.CheckCancelInterval == 0)
{
context.CheckCancelled();
}
}
parent.CommitSection(summary, FSImageFormatProtobuf.SectionName.Inode);
}
