.

wcfs/δftail.go

@@ -99,8 +99,20 @@ func (δf *ΔFTail) Update(δZ *zodb.EventCommit) ΔFentry {
 func (δf *ΔFTail) LastRevOf(file *BigFile, blk int64, at zodb.Tid) (_ zodb.Tid, exact bool) {
 	// revision of when blktab[blk] entry changed last.
 	treeKeyRev, exact := δf.ΔTail.LastRevOf(file.zfile.blktab, blk, at)	// XXX activate?
+	_ = treeKeyRev
 
 	// blktab[blk] is only a pointer (to ZBlk) and ZBlk could itself have
 	// been changing after treeKeyRev. We have to check for that.
 	panic("TODO")
 }
+
+
+func (f *BigFile) LastBlkRev(blk int64, at zodb.Tid) (_ zodb.Tid, exact bool) {
+	δf := f.head.bfdir.δFtail
+
+	// revision of when blktab[blk] entry changed last.
+	treeKeyRev, exact := δf.ΔTail.LastRevOf(f.zfile.blktab, blk, at)	// XXX activate?
+	_ = treeKeyRev
+
+	panic("TODO")
+}