Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Tue, 7 May 2013 13:45:38 -0500

Hi Mike,

On 2013-04-30 Zelazny, Michael Stanley wrote:
> 
> Motivation: Currently the SLAC electron beam line controls group uses an
>  IRMIS crawler to get PV information into the RDB by crawling every IOCs
>  st.cmd.  Our engineers add new, but valid, syntax that results in us
>  having to massage that crawler quite a bit.  I would like to add a command
>  to all of our IOC startup scripts that generates a list of PVs and fields
>  that can easily crawled and inserted into the IRMIS RDB.  Example:
> 
> iocshCmd("dbpr(*,5,1) >/data/iocInfo/IOC.pvEveryField")
> 
> Opinions?

You can already use the command below on vxWorks to generate a .db file 
containing all the non-default design-time field values of all record 
instances currently loaded by the IOC:
    dbDumpRecord(pdbbase,0,0) > all.db

I think this should also work from RTEMS under CEXP, but iocsh doesn't have 
any way of passing a NULL as the second argument (the record type name string) 
which is currently necessary to dump all record types.  You'd have to issue 
one command for each record type to use this command from iocsh with existing 
versions of Base, although I will fix that to accept '*' or an empty string.

It should be relatively easy to create a new command to generate the output 
that you asked for if dbDumpRecord doesn't work for you, although I'm not sure 
that having an 'output format' argument is a good idea for user commands, 
probably better to use a different command completely.

- Andrew
-- 
It is difficult to get a man to understand something, when his salary
depends upon his not understanding it. -- Upton Sinclair

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System