.

wcfs/internal/zdata/δftail.go

@@ -151,6 +151,10 @@ type ΔFtail struct {
 	trackNew setOid // {}foid
 
 	// set of tracked ZBlk objects reverse-mapped to trees and block numbers
+	//
+	// XXX split -> :
+	//	ΔFtail.trackSetZBlkRoots	{} zblk  -> {root}
+	//	δftail.trackSetZBlkBlocks	{} zblk  -> {blk}     in tha file/root  (shared by all files with same root ?)
 	trackSetZBlk  map[zodb.Oid]*zblkTrack // zblk -> {} root -> {}blk    as of @head
 }