Experimental Physics and
Industrial Control System

Ben Franksen via Core-talk <core-talk at aps.anl.gov> · Fri, 3 Apr 2020 19:42:51 +0200

Hi Andrew,

Am 30.03.20 um 06:08 schrieb Johnson, Andrew N.:
> I’m also thinking of a put filter where you can give individual array
> index values to be written to, so to create a filter that only
> overwrites specific elements of the target array you might want to
> specify a channel filter as
> 
> pvname.{“subset”:[0,1,2,4,6,10,12,16,18]}
> 
> The idea is that there might not be an arithmetic slice/stride
> pattern to the index values.

I have implemented this proposal, albeit with plain bracket notation,
that is you specify "PV[0,1,2,4,6,10,12,16,18]" directly. It is just
another form of address modifier, alongside the "PV[s:i:e]" notation.

The code is probably buggy since I haven't done serious testing yet,
just some experiments with caput and a simple soft IOC. If you are
interested, this is the latest commit on my work branch:

https://code.launchpad.net/~bfrk/epics-base/+git/epics-base/+ref/work

I have also updated all my merge proposals with a forced push to get rid
of unwanted commits and to avoid conflicts with 7.0.

Cheers
Ben

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System