Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Thu, 14 Jan 2016 11:07:06 -0600

On 01/14/2016 10:59 AM, Lingyun Yang wrote:
> Thank you all for the help.
> 
> Unfortunately this aSub is outputing both "calculation" and "action". So
> I want to forward the "calculations"  but inhibit the actions.
> This all/none solutions does not work for me.

As long as your subroutine subsequently returns a non-zero value, you
can control which links get output yourself by calling dbPutLink()
yourself as desired. Take a look in the src/rec/aSubRecord.c file at the
process() routine, where you'll find this code:

>     /* Push the output link values */
>     if (!status) {
>         int i;
> 
>         for (i = 0; i < NUM_ARGS; i++)
>             dbPutLink(&(&prec->outa)[i], (&prec->ftva)[i], (&prec->vala)[i],
>                 (&prec->neva)[i]);
>     }

You just need to do exactly what the record does for each of the links
that you want to send out. This will probably be *much* easier than
using Kay's calcout suggestion.

- Andrew

-- 
There are only two hard problems in distributed systems:
  2. Exactly-once delivery
  1. Guaranteed order of messages
  2. Exactly-once delivery
 -- Mathias Verraes

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System