.

wcfs/internal/xbtree/δbtail.go

@@ -250,7 +250,7 @@ func (btail *ΔTail) Update(δZ *zodb.EventCommit) (δB ΔRevEntry) {
 // func (btail *ΔTail) update()
 
 // XXX -> Get(root, key, at) -> (valueOid, rev) ?
-func (btail *ΔTail) LastRevOf(root Tree, key Key, at zodb.Tid) (_ zodb.Tid, exact bool) {
+func (btail *ΔTail) LastRevOf(root *Tree, key Key, at zodb.Tid) (_ zodb.Tid, exact bool) {
 /*
 	lastRevOf = btail.lastRevOf[root]
 	rev = lastRevOf[key]

wcfs/misc.go

@@ -42,9 +42,6 @@ import (
 
 	"lab.nexedi.com/kirr/neo/go/transaction"
 	"lab.nexedi.com/kirr/neo/go/zodb"
-	"lab.nexedi.com/kirr/neo/go/zodb/btree"
-
-	"./internal/xbtree"
 )
 
 // ---- FUSE ----

wcfs/δftail.go

@@ -20,6 +20,14 @@
 package main
 // ΔFtail - merge btree.ΔTail with history of ZBlk
 
+import (
+	"fmt"
+
+	"lab.nexedi.com/kirr/neo/go/zodb"
+	"lab.nexedi.com/kirr/neo/go/zodb/btree"
+
+	"./internal/xbtree"
+)
 
 // ΔFTail is like btree.ΔTail but additionally tracks tree-root -> file relation and
 // takes ZBlk history into account.
@@ -88,7 +96,7 @@ func (δf *ΔFTail) Update(δZ *zodb.EventCommit) ΔFentry {
 // XXX ZBigFile.LoadBlk(blk) -> blkdata, rev
 func (δf *ΔFTail) LastRevOf(file *BigFile, blk int64, at zodb.Tid) (_ zodb.Tid, exact bool) {
 	// revision of when blktab[blk] entry changed last.
-	treeKeyRev := δf.ΔTail.LastRevOf(file.zfile.blktab, blk, at)	// XXX activate?
+	treeKeyRev, exact := δf.ΔTail.LastRevOf(file.zfile.blktab, blk, at)	// XXX activate?
 
 	// blktab[blk] is only a pointer (to ZBlk) and ZBlk could itself have
 	// been changing after treeKeyRev. We have to check for that.