.

wcfs/wcfs.go

@@ -522,7 +522,7 @@ type BigFile struct {
 	rev     zodb.Tid // last revision that modified zfile data
 
 //	// tail change history of this file.
-	δtail *ΔTailI64 // [](rev↑, []#blk)	XXX kill
+//	δtail *ΔTailI64 // [](rev↑, []#blk)	XXX kill
 
 	// inflight loadings of ZBigFile from ZODB.
 	// successful load results are kept here until blkdata is put into OS pagecache.
@@ -749,6 +749,7 @@ retry:
 		default:
 			continue // object not related to any bigfile
 
+		// XXX kill Tree/Bucket here
 		case *btree.LOBTree:
 			btreeChangev = append(btreeChangev, obj.POid())
 
@@ -795,10 +796,8 @@ retry:
 	// XXX no indexMu lock needed because head is Locked
 	// XXX stub -> TODO full δbtree | update indexLooked itself
 	//fmt.Printf("\nbtreeChangev: %v\n", btreeChangev)
-//	xfiles := bfdir.δFtail.Invalidates(btreeChangev)
 	δf := bfdir.δFtail.Update(zδ)
 	//fmt.Printf("xfiles: %v\n", xfiles)
-//	for xfile := range xfiles {
 	for _, δ := range δf.Changev {
 		file := δ.File
 		// XXX use δ.Blkv
@@ -884,6 +883,8 @@ retry:
 			delete(gdebug.zheadSockTab, sk)
 		}
 	}
+
+	// XXX δFtail.ForgetPast(...)
 }
 
 // invalidateBlk invalidates 1 file block in kernel cache.