Rob Scott suggests
(3) Your STC holds an system enqueue for an agreed QNAME - you stick the
anchor in the RNAME and use ISGQUERY to find it
Not as efficient as system level name/token - however the big
advantage over other methods of being possible to achieve in
problem state code.
Furthrmore, this from my SIMCICS (CICS Simulator) experience:
If your server "posts/publishes" using ENQ EXClusive, your clients issue an
ENQ SHR with asynchronous wait right after the ISGQUERY, then you have
a neat mechanism:
o server can post/publish "updates" (ENQ new_val then DEQ old_val)
o after a server DEQs, clients find server down or new RNAME value
o server can find out how many clients are running and who they are.
o RNAME offers more token space
Andreas F. Geissbuehler