Re: [EXTERNAL] lso record

[Michael Davidsaver <mdavidsaver at gmail.com>]

On 9/9/24 15:33, Johnson, Andrew N. via Tech-talk wrote:
> Unfortunately the pvget/pvput tools don't currently have an equivalent of the '-S' flag although if they did that would work with a $ field modifier. If your IOC runs QSRV-2 from PVXS that can transport long strings over PVA, and with that you don't have to use the $ field modifier at all. I'm not sure if PVXS can support treating a waveform containing a char array as a string, it may be possible if you set an info field.
An IOC running QSRV2 from PVXS >= 1.2.2 does not need special handling for VAL of lsi/lso.

> $ cat si.db
> record(lsi, "X") {
>     field(SIZV, "128")
>     field(INP, "This is a test")
>     field(PINI, "YES")
> }
> $ softIocPVX -d ../base-git/lsi.db


> $ pvput X "this is a sort of, kind of, longish string"
> Old : 2024-09-10 09:48:32.831  "This is a test" 
> New : 2024-09-10 09:48:51.796  "this is a sort of, kind of, longish string"
> $ pvget X
> X 2024-09-10 09:48:51.796  "this is a sort of, kind of, longish string"