Experimental Physics and
Industrial Control System

Ralph Lange <[email protected]> · Wed, 08 Sep 2010 11:11:02 -0400

 On 08.09.2010 10:50, Ernest L. Williams Jr. wrote:

Marty Kraimer wrote:

  On 09/07/2010 04:44 PM, Andrew Johnson wrote:

Hi Ernest,

Alternatively start looking at Marty Kraimer's Java IOC which I

believe was

designed to allow dynamic record creation and deletion.

- Andrew

Yes dynamic creation and deletion is allowed on the javaIOC.

Marty

So, now the question is do we join the development for the C++

implementation of the PVData and PVAccess or do we invest time into

EPICS 3.x.

Ernest,

the C++ implementation of PVData and PVAccess will be exactly what its

name suggests: an implementation of the data structures (PVData) and the

network protocol (PVAccess).

There are no current plans to implement the database (PVEngine fka

javaIOC) in C++. Instead, the C++ implementations will be accompanied by

an interface layer to the existing V3 database and device support, so

that existing V3 databases can be run in a V4 system.

 We really want to have this functionality for uTCA. We will first

look at the work done for the redundant IOC as Andrew suggested.

Maybe, the least path of resistance with respect to time is to have

this functionality in EPICS 3.x?

A project which will require - as Andrew pointed out - an impressive lot

of resources allocated to it, unless your time frame is measured in

decades rather than months. ;-)

Cheers,
Ralph

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System