Experimental Physics and
Industrial Control System

"J. Lewis Muir" <[email protected]> · Mon, 19 Nov 2007 20:20:20 -0500

On 11/16/07 5:34 PM, Andrew Johnson wrote:

Hi Lewis,
J. Lewis Muir wrote:

Have you made any more progress with this? Or are you waiting on a
response from Carl to your below email from a week ago?

I just heard back from Carl who sent me another patch which I have applied.
I'm willing to do a little testing if you have a patch you'd like
someone to try out.

Great, I'm attaching the latest subArrayRecord.c file to this email (it
has gone through too many cosmetic changes since R3.14.9 to be worth
using a .patch file) which I have compiled but not tested. Please check
it out and report back.
Thanks,
â Andrew

Hi, Andrew.
Thanks for the new subArrayRecord.c!
While not exhaustive, I did test the behavior of interest to me.
I tested it with the subArray-indx-reset.db test case from my original
email. It worked; the INDX field was not reset to 0 even though it
couldn't read anything since the asyn record couldn't read anything. So
this is the behavior I was hoping to get.
I also tested it with an asyn TCP/IP client port. The asyn port reads
four bytes from a TCP/IP server. I terminate the TCP/IP server and make
the asyn record process. It of course fails to read anything from the
TCP/IP server. The asyn record has a forward link to a subArray record
which reads from the asyn record's BINP field. The subArray record has
STAT=LINK, SEVR=MAJOR, and INDX has not been reset to 0; so this is
good. When I start the TCP/IP server again and cause the asyn record to
process, it reconnects and reads the four bytes and the subArray record
is able to read the asyn record's BINP field and has STAT=NO_ALARM,
SEVR=NO_ALARM, and INDX set to the correct value (i.e. not reset to 0).
So this is working how I hoped it would.
The testing was done with the following configuration:
* OS: Mac OS X 10.4.10
* EPICS 3.14.8.2
* synApps 5.2 (with motor 6-2-2 + fixes, asyn 4-8 + fixes, sscan 2-5-6)
Thanks!
-lewis
--
J. Lewis Muir
Software Engineer
CARS/IMCA-CAT

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System