private static Tuple <DupItem, TreeNodeDupMd5Full> AddDup(FileInfo fInfo, Action <DupItem> doLink)
{
var d = new DupItem(fInfo);
var s = d.Size;
var n = Root.Get(s);
if (n == null)
{
lock (RootLock)
n = Root.GetOrNew(s);
}
Task.Run(() => doLink(d));
var tFull = n.Add(d);
return(Tuple.Create(d, tFull));
}
public TreeNodeDupMd5Full Add(DupItem d)
{
if (Existing != null)
{
KeyBeforeLock(d); // do this outside lock
}
IList <Tuple <TreeNodeBase, DupItem> > l;
lock (Lock)
{
if (Existing == null)
{
Existing = d;
return(null);
}
l = AddNonFirstLock(d); // do lock critical
}
return(AddNonFirstPostLock(l)); // do stuff not needing lock at this level
}
protected override IList <Tuple <TreeNodeBase, DupItem> > AddNonFirstLock(DupItem d)
{
var unhandSibs = SubTree.Count == 0 ? new[] { Existing, d } : new[] { d };
return(unhandSibs
.Select(s => Tuple.Create((TreeNodeBase)SubTree.GetOrNew(KeyBeforeLock(s)), s))
.ToList());
}
protected override string KeyBeforeLock(DupItem x)
{
return(x.GetMd5OneBlock());
}
protected abstract IList <Tuple <TreeNodeBase, DupItem> > AddNonFirstLock(DupItem d);
protected virtual string KeyBeforeLock(DupItem x)
{
return(null);
}
protected override IList <Tuple <TreeNodeBase, DupItem> > AddNonFirstLock(DupItem d)
{
return(null);
}
