.

wcfs/internal/zdata/δftail.go

@@ -30,7 +30,7 @@ import (
 	"lab.nexedi.com/nexedi/wendelin.core/wcfs/internal/set"
 	"lab.nexedi.com/nexedi/wendelin.core/wcfs/internal/xbtree"
 	"lab.nexedi.com/nexedi/wendelin.core/wcfs/internal/xtail"
-	"lab.nexedi.com/nexedi/wendelin.core/wcfs/internal/xzodb"
+//	"lab.nexedi.com/nexedi/wendelin.core/wcfs/internal/xzodb"
 )
 
 type setI64 = set.I64
@@ -217,10 +217,12 @@ func (δFtail *ΔFtail) Track(file *ZBigFile, blk int64, path []btree.LONode, zb
 //
 // δZ should include all objects changed by ZODB transaction.
 //
-// Zhead must be active connection at δFtail.Head() database state.
-// Objects in Zhead must not be modified.
-// During call to Update zhead must not be otherwise used - even for reading.
-func (δFtail *ΔFtail) Update(δZ *zodb.EventCommit, zhead *xzodb.ZConn) (_ ΔF, err error) {
+// XXX readd zhead?
+// // Zhead must be active connection at δFtail.Head() database state.
+// // Objects in Zhead must not be modified.
+// // During call to Update zhead must not be otherwise used - even for reading.
+//func (δFtail *ΔFtail) Update(δZ *zodb.EventCommit, zhead *xzodb.ZConn) (_ ΔF, err error) {
+func (δFtail *ΔFtail) Update(δZ *zodb.EventCommit) (_ ΔF, err error) {
 	defer xerr.Contextf(&err, "ΔFtail update %s -> %s", δFtail.Head(), δZ.Tid)
 	// XXX δFtail.update() first?
 

wcfs/internal/zdata/δftail_test.go

@@ -162,9 +162,14 @@ func TestΔFtail(t_ *testing.T) {
 		// commit updated blkTab + dataTab
 		tdTxt := fmt.Sprintf("t%s D%s", xbtreetest.KVTxt(blkTab), dataTabTxt(dataTab))
 		commit := t.CommitTree(tdTxt)
+		fmt.Printf("@%s  δT: %v   δD: %s\n", commit.At, test.δblkTab, test.δdataTab)
 		fmt.Printf("@%s  %s\n", commit.At, commit.Tree)
 
+		// update δftail
+		δF, err := δftail.Update(commit.ΔZ);  X(err)
+
 		// XXX assert 
+		_ = δF
 	}
 }
 

wcfs/wcfs.go

@@ -868,7 +868,8 @@ retry:
 	// invalidate kernel cache for data in changed files
 	// NOTE no δFmu lock needed because zhead is WLocked
 
-	δF, err := bfdir.δFtail.Update(δZ, zhead) // δF <- δZ |tracked
+//	δF, err := bfdir.δFtail.Update(δZ, zhead) // δF <- δZ |tracked
+	δF, err := bfdir.δFtail.Update(δZ) // δF <- δZ |tracked
 	if err != nil {
 		return err
 	}