Hi Robert -
On Thu, 1 Nov 2012 09:29:06 +0000, Robert Houts <rshouts@xxxxxxxxx>
Simply resolving a pointer to an object does not cause the last used date to be updated. For example, the RTVDTAARA command and QWCRDTAA API both cause the last used date of a data area to be updated. But, (inexplicably) the CHGDTAARA command does not. In all three cases the pointer is resolved. You can resolve pointers all day long to any objects, but the usage information is only updated when you actually use the object.
The last used date for a program is updated when a program is run (or activated). As with all objects whose usage information is tracked, it is only updated the first time it is used in a given day. It has nothing to do with whether the calling program has been running for several days or just a few microseconds. If a program that runs for multiple days calls another program each of those days, the called program's usage information will be updated each day that it is called.
So for something like a user space that is being read and/or updated
by use of a pointer (rather than the user space APIs), at what point
does the system update the last-used date?
Opinions expressed are my own and do not necessarily represent the views
of my employer or anyone in their right mind.