Experimental Physics and
Industrial Control System

[email protected] (Nick Rees) · Mon, 13 Feb 95 09:47:59 HST

Has 3.12 CA stopped being asynchronous on VMS or am I being dumb?

I am playing around with my first VMS CA client and I understood that
CA used AST's to handle events. That is, my understanding is that event
handlers would execute in AST context and so a call to ca_pend_event
was not required for an event to be processed.

However, my event handlers only appear to be executed when I call
ca_pend_event, or some other CA routine.

I don't mind if the functionality has changed, only I wish the
documentation would be a bit more clear.

An alternative question is - is there a way of a particular event
forcing ca_pend_event to return? The way I see it, it always waits at
least for the specified interval.

Nick Rees

Joint Astronomy Centre                    Ph:       +1 (808) 961-3756
660 N. Aohoku Place                       Fax:      +1 (808) 961-6516
Hilo, HI.  96720                          Internet: [email protected]

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System