.

wcfs/wcfs.go

@@ -275,6 +275,11 @@ package main
 //
 //	that describes which file(s) parts needs to be invalidated.
 //
+//	FIXME no - we can build it but not in full - since we consider only zobj in live cache.
+//	FIXME and even if we consider all δ'ed zobj, building complete set of
+//	      file.δtail requires to first do complete scan of file.blktab
+//	      which is prohibitevely expensive.
+//
 //    4.4) for all file/blk to invalidate we do:
 //
 //	- try to retrieve head/bigfile/file[blk] from OS file cache(*);

wcfs/wcfs_test.py

@@ -645,6 +645,9 @@ def test_wcfs():
     # which @rev blk is pinned on watch? (δtail is missing both and if it will
     # be another blk rev < rev1,rev2 - it will be incorrect)
 
+    # XXX pin message when blk data only first appeared after > w.at - pin
+    # needs to pin to zero.
+
 
 
 def test_wcfs_invproto():