Experimental Physics and
Industrial Control System

Andrew Johnson <[email protected]> · Thu, 20 Jun 2013 16:19:39 -0500

Hi Lewis,

On 2013-06-20 J. Lewis Muir wrote:
> Why would I want to use this wrapper instead of just using the EPICS
> errlog facility directly?

See these tech-talk messages for context:

http://www.aps.anl.gov/epics/tech-talk/2013/msg01107.php
http://www.aps.anl.gov/epics/tech-talk/2013/msg01115.php
http://www.aps.anl.gov/epics/tech-talk/2013/msg01126.php
http://www.aps.anl.gov/epics/tech-talk/2013/msg01256.php

> I didn't think the EPICS errlog facility provided a way to log to a
> file;

It does if you connect it to an iocLogServer, see section 10.7 in the 
AppDevGuide.

> how does Feller log to a file using the EPICS errlog facility?

I assume it registers an errlogListener routine on the IOC by calling 
errlogAddListener() (section 10.3 of the AppDevGuide) and writes the messages 
it gets to the file.

- Andrew
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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System