Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Thu, 09 Aug 2001 14:13:51 -0500

Benjamin Franksen wrote:
> 
> Andrew Johnson wrote:
> >
> > LINR might be converted to a string field, which would allow the desired
> > behaviour (and permit the addition of new breakpoint tables at run-time).
> > Another problem with the enum is that it really should be dynamic
> > according to the breakpoint tables actually loaded into the IOC, but it
> > isn't.  However switching to a string will probably break some existing
> > databases and displays, so I expect it to be rejected.
> 
> I have thought about a different solution. Reduce menuConvert to a fixed
> set of general conversion methods, i.e. one of {NO CONVERSION, LINEAR,
> BREAKPOINT, SUBROUTINE}. A separate (new) field of string type could
> hold the name of the breakpoint table in case LINR is BREAKPOINT or the
> name of a subroutine in case LINR is SUBROUTINE.

This is probably better than just having a string field, but it's not
completely backwards compatible as a record definition must specify two
field values to select a particular breakpoint table.  It would also need
modifications to any displays that used to be able to switch between
different tables.

- Andrew
-- 
The world is such a cheerful place when viewed from upside-down
It makes a rise of every fall, a smile of every frown

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System