EPICS Controls Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  <20132014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  <20132014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
<== Date ==> <== Thread ==>

Subject: RE: event handler callback status
From: <[email protected]>
To: <[email protected]>, <[email protected]>
Date: Fri, 7 Jun 2013 06:14:05 +0000
I believe that the args.status field can be either ECA_NORMAL or ECA_DISCONN -- but if you receive a disconnect notification this doesn't mean you won't get any more updates, it just means the connection to the serving IOC has been temporarily lost.  If connection can be reestablished then you'll receive further updates.

I'm not aware of any other values, but I just test for equality to ECA_NORMAL.

> -----Original Message-----
> From: [email protected] [mailto:tech-talk-
> [email protected]] On Behalf Of [email protected]
> Sent: 07 June 2013 01:28
> To: [email protected]
> Subject: event handler callback status
> 
> Hi,
> 
> I am attempting to monitor the status of each process variable that I
> have
> subscribed to in a channel access client (using
> ca_create_subscription). I
> was wondering what the possible values are that the status variable can
> take in the event_handler_args structure, and what they may indicate. I
> am
> primarily interested in whether any of these might mean that the
> channel
> will no longer receive further monitor updates?
> 
> Thank you for your time,
> Patrick
> 



References:
event handler callback status pthomas

Navigate by Date:
Prev: RE: IP330 modules question Geon-Yeong Mun
Next: Changing SCAN field in many records Hinko Kočevar
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  <20132014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
Navigate by Thread:
Prev: event handler callback status pthomas
Next: Changing SCAN field in many records Hinko Kočevar
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  2011  2012  <20132014  2015  2016  2017  2018  2019  2020  2021  2022  2023  2024 
ANJ, 20 Apr 2015 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·