On 5/10/23 10:58 AM, Han Lee via Tech-talk wrote:
Hi Michael,
Could you help me figure out how to use this
dbRecordOnceOny within a st.cmd?
var dbRecordsOnceOnly 1
It affects dbLoadRecords() and dbLoadTemplate() commands that come
after it.
- Andrew
On
Wed, May 10, 2023 at 8:53 AM Michael Davidsaver via Tech-talk <tech-talk at aps.anl.gov>
wrote:
fyi.
There is a proposed change to the meaning of the
dbRecordsOnceOnly global variable under consideration.
This change would make dbRecordsOnceOnly!=0 less restrictive.
As a reminder, dbRecordsOnceOnly defaults to zero.
https://github.com/epics-base/epics-base/pull/383
Currently with
> record(ai, "myrec") {}
dbRecordsOnceOnly!=0 currently disallows appending fields with
either form:
> record("*", "myrec") {} # error
> record(ai, "myrec") {} # error
This PR changes the meaning such that dbRecordsOnceOnly!=0
always allows appending when explicitly intended (rtype "*").
> record("*", "myrec") {} # allowed
> record(ai, "myrec") {} # error
--
Jeong Han Lee,
Dr.rer.nat.
Staff Scientist
and Engineer
Cell: +1 510 384
3868
--
Complexity comes for free, Simplicity you have to work for.
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