z/VM 4.4
I am trying to determine when the contents of an SFS directory change.
Not in real time, I mean at any given time I'd like to query the
directory to see when the most recent change to any of the contents
occurred. As in a file added, removed, renamed or updated.
I could look at the CMS timestamps of each file within the directory,
but that would not detect deletions.
The CSL DMSEXST routine returns a buffer of good stuff... at
displacement 268 and 222 of the DIR Record are the UTC date/time of the
last change.
This does not seem to be what I was expecting. :-( I renamed a file in
the directory, but the date/time returned by DMSEXIST didn't change.
Is there a way to tell when the directory was changed?
In this case I'm really not too worried about deletions... and thought
if I really need to pursue this, I'll do something like calculate a CRC
from the file names/types and modification timestamps and keep that.
Obviously that won't tell me WHEN the last change occurred, but it will
tell me that something changed since the last time I looked.
Thanks
