.

wcfs/zblk.go

@@ -92,6 +92,9 @@ type zBlk interface {
 	blkBoundTo() map[*BigFile]SetI64
 }
 
+var _ zBlk = (*ZBlk0)(nil)
+var _ zBlk = (*ZBlk1)(nil)
+
 // ---- zBlkBase ----
 
 // zBlkBase provides common functionality to implement ZBlk* -> zfile, #blk binding.
@@ -100,28 +103,28 @@ type zBlk interface {
 // persistent state.
 type zBlkBase struct {
 	bindMu  sync.Mutex          // used only for binding to support multiple loaders
-	inzfile map[*ZBigFile]SetI64 // {} zfile -> set(#blk)
+	infile  map[*BigFile]SetI64 // {} zfile -> set(#blk)
 }
 
-// bindZFile implements zBlk.
-func (zb *zBlkBase) bindZFile(zfile *ZBigFile, blk int64) {
+// bindFile implements zBlk.
+func (zb *zBlkBase) bindFile(file *BigFile, blk int64) {
 	zb.bindMu.Lock()
 	defer zb.bindMu.Unlock()
 
-	blkmap, ok := zb.inzfile[zfile]
+	blkmap, ok := zb.infile[file]
 	if !ok {
 		blkmap = make(SetI64, 1)
-		if zb.inzfile == nil {
-			zb.inzfile = make(map[*ZBigFile]SetI64)
+		if zb.infile == nil {
+			zb.infile = make(map[*BigFile]SetI64)
 		}
-		zb.inzfile[zfile] = blkmap
+		zb.infile[file] = blkmap
 	}
 	blkmap.Add(blk)
 }
 
 // blkBoundTo implementss zBlk.
-func (zb *zBlkBase) blkBoundTo() map[*ZBigFile]SetI64 {
-	return zb.inzfile
+func (zb *zBlkBase) blkBoundTo() map[*BigFile]SetI64 {
+	return zb.infile
 }
 
 // ---- ZBlk0 ----
@@ -172,7 +175,6 @@ func (zb *ZBlk0) loadBlkData(ctx context.Context) ([]byte, zodb.Tid, error) {
 
 // ZData mimics ZData from python.
 type ZData struct {
-	zBlkBase		// XXX -> ZBlk1, not here?
 	zodb.Persistent
 
 	// XXX py source uses bytes(buf) but on python2 it still results in str
@@ -202,6 +204,7 @@ func (zd *zDataState) PySetState(pystate interface{}) error {
 
 // ZBlk1 mimics ZBlk1 from python.
 type ZBlk1 struct {
+	zBlkBase
 	zodb.Persistent
 
 	chunktab *btree.IOBTree // {} offset -> ZData(chunk)

wcfs/δbtail.go

@@ -91,7 +91,7 @@ type ΔBtail struct {
 	δRtail []ΔRoots // which BTree were changed; Noted only by keys ∈ tracket subset
 	byRoot map[*Tree]*ΔTreeTail // root -> k/v change history; only for keys ∈ tracket subset
 
-	// XXX or ask client provide db on every call?
+	// XXX or ask client to provide db on every call?
 	db     *zodb.DB    // to open connections to load new/old tree|buckets
 
 	// tracked index: BTree|Bucket -> top tree element.

wcfs/δftail.go

@@ -153,6 +153,7 @@ func (δFtail *ΔFtail) Update(δZ *zodb.EventCommit) ΔF {
 	// take zblk changes into account
 	for _, oid := range δZ.Changev {
 		// XXX cache lock/unlock
+		var zcache *zodb.LiveCache	// XXX stub
 		obj := zcache.Get(oid)
 		if obj == nil {
 			//fmt.Printf("%s: not in cache\n", oid)