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<== Date ==> <== Thread ==>

Subject: processing pva records
From: pmhanlet via Tech-talk <tech-talk@aps.anl.gov>
To: "tech-talk@aps.anl.gov" <tech-talk@aps.anl.gov>
Date: Wed, 18 Dec 2019 15:41:12 -0600
Hi all,
I am developing a module for use at Fermilab which allows an easy interface
from EPICS IOCs to our native control system.  I want to use aSub records
so that I have the flat db files which can be populated with macros.  Within
my module I've created a structure, v7Struct which carries all of the pertinent information; e.g. Reading and Setting.  At initialization, I instantiate as many
of these objects (v7Structs) as I need.

So, to read from my v3 PVs, I do:
v3PV -> aSub(Reading) -> v7Struct -> operator (via native system)

This works well.  Where I'm having difficulty is the other way around:
operator -> v7Struct ->(?) aSub(Setting) -> v3PV

In other words, I don't know how to get my v7Struct to process my aSub(Setting).
I've been going through exampleCPP, which is a very helpful work, but thin
on documentation.  Do I need to set up a PvaClient and set up monitor and
then a link, or is there someway to do this directly from PVData or PVDatabase?
Thank you,
Pierrick

--
Pierrick Hanlet
+1-312-687-4980       US
+44 (0)79-48-86-01-97 UK

"Whether you think you can or think you can't, either way, you are correct" -- Henry Ford


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