Re: Truncated LSO

[Dave Bracey via Tech-talk <tech-talk at aps.anl.gov>]

Thank you Jure.

 

Can anyone point to any examples of this in github, etc?

 

From: Tech-talk <tech-talk-bounces at aps.anl.gov> on behalf of Jure Varlec via Tech-talk <tech-talk at aps.anl.gov>
Date: Wednesday, July 31, 2024 at 1:07 AM
To: tech-talk at aps.anl.gov <tech-talk at aps.anl.gov>
Subject: Re: Truncated LSO

[EXTERNAL] – This message is from an external sender

Hi,

You need to build your IOC with a recent version of PVXS. This will serve records over PVAccess using the newer QSRV2, which handles the lsi record the way one would expect. For a quick test, use softIocPVX that comes with the PVXS module.

Best,
Jure

On 7/31/24 03:09, Di Wang via Tech-talk wrote:
> Caution: This email originated from outside of Cosylab.
>
>
> Hi Dave,
>
> You can try "Long String Field Modifier $" for your purpose.
> Doc: https://urldefense.proofpoint.com/v2/url?u=https-3A__urldefense.us_v3_-5F-5Fhttps-3A__epics.anl.gov_base_R7-2D0_8-2Ddocs_doxygen_filters.html-5F-5F-3B-21-21G-5FuCfscf7eWS-21cnuappWtgqPWAx1TPmDXqDhMvigKvWKoFp2iYWd5Q8WjhwPeqNIiUSy188XGNI75gNbTE1TS62BgbrFUQfin8Q-24&d=DwIFaQ&c=gRgGjJ3BkIsb5y6s49QqsA&r=-F5ElEx0xTIzUkth_6VDnd86lqN2rUgF0GIN-S3DMY4&m=Xn75GgSD2-0TaZTBSx7cTI_D6Y97mxBbdtDKRTxRKIgpIPFC92DM9cKU25y7iPGi&s=t96MOnUvNpcx3RU-Fh_W450kiz2TYdznvXX2pzN7D74&e=
>
> $ caput -S plain.VAL$ "this is a string longer than forty characters"
> Old : plain.VAL$
> New : plain.VAL$ this is a string longer than forty characters
>
> $ caget -S plain.VAL$
> plain.VAL$ this is a string longer than forty characters
>
> I am also curious about how to do it through PV Access though...
>
> Cheers,
> Di
>
>> Date: Tue, 30 Jul 2024 17:53:23 +0000
>> From: Dave Bracey <dbracey at fnal.gov>
>> To: "tech-talk at aps.anl.gov" <tech-talk at aps.anl.gov>
>> Subject: Truncated LSO
>>
>> I'm using an lso record and my string gets truncated to 40 chars:
>>
>> record(lso, "plain_lso")
>> {
>>   field(SIZV, 256)
>> }
>> $ pvput plain_lso "This is a string longer than forty characters"
>> Old : <undefined>               INVALID DRIVER UDF
>> New : 2024-07-30 12:45:33.238  "This is a string longer than forty char"
>> $ pvget plain_lso
>> plain_lso 2024-07-30 12:45:33.238  "This is a string longer than forty char"
>>
>> What am I doing wrong here?
>