Intended use of NTMultiChannel

["Paduan Donadio, Marcio via Tech-talk" <tech-talk at aps.anl.gov>]

I have a NTMultiChannel created using the C++ API. I pvput to channelName passing a valid PV name. I placed a printf inside the process() method just to check if the record is processing and I can confirm it does.

 

When I pvget I expected to see the other fields of the record populated with values from the PV in channelName. Is it intended that inside process() I write the commands to bring the data for each channel and write to the fields of the NTMultiChannel? Is there a default “record support” that has it already implemented and I can use?

 

Some data:

 

Epics base 7.0.3

 

$ pvget GMDTest:NTScalar

GMDTest:NTScalar 0

 

$ pvput GMDTest:NTMultiChannel 'channelName=["GMDTest:NTScalar"]'

Old : epics:nt/NTMultiChannel:1.0

    any[] value

    string[] channelName []

    int[] severity []

    int[] status []

    string[] message []

    boolean[] isConnected []

New : epics:nt/NTMultiChannel:1.0

    any[] value

    string[] channelName ["GMDTest:NTScalar"]

    int[] severity []

    int[] status []

    string[] message []

    boolean[] isConnected []

 

$ pvget GMDTest:NTMultiChannel

GMDTest:NTMultiChannel epics:nt/NTMultiChannel:1.0

    any[] value

    string[] channelName ["GMDTest:NTScalar"]

    int[] severity []

    int[] status []

    string[] message []

    boolean[] isConnected []