Experimental Physics and Industrial Control System
Subject: |
Re: How is 'exit()' different for the IOC shell? |
From: |
"Konrad, Martin via Tech-talk" <[email protected]> |
To: |
"Zelazny, Michael Stanley via Tech-talk" <[email protected]> |
Date: |
Wed, 26 Jun 2019 21:58:21 +0000 |
Hi Kay,
> date()
> exit()
>
> the date is printed, but instead of then exiting, I get the "epics>"
> prompt.
I recently ran into the same issue. I actually intended to see if this
can be changed without any negative consequences. The IOC shell code
actually handles "exit" a bit weird - it just returns rather than
shutting down [1]. Returning is not sufficient since IOC applications
usually contain something like
iocsh(argv[1]);
iocsh(NULL);
The first line processes the st.cmd file and returns when it finds an
"exit" line. The second line results in an interactive shell session.
> IOCAdmin EPICS Module has a PV called $(IOC):SYSRESET that you could>
> dbpf after your sleep.
Unfortunately iocStats is not available with the softIOC executable.
My use case:
iocInit()
system('python3 test.py') # writes test output to test.tap
exit()
We are running something like this on our CI server.
-Martin
[1]
https://github.com/epics-base/epics-base/blob/7.0/modules/libcom/src/iocsh/iocsh.cpp#L819
--
Martin Konrad
Facility for Rare Isotope Beams
Michigan State University
640 South Shaw Lane
East Lansing, MI 48824-1321, USA
Tel. 517-908-7253
Email: [email protected]
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- Re: How is 'exit()' different for the IOC shell? Kasemir, Kay via Tech-talk
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