Am 23.02.2017 um 18:26 schrieb Michael Davidsaver:
Personally, I'd never consider trying to unload libCom or libca.
Neither was designed with this in mind.
Carsten (and me) wouldn't either, it's just that Labview seems to insist
on it :-(
For example. With libCom the errlog thread is never stopped. And libca
registers a function pointer using epicsAtExit(). So if libca is
unloaded, then running epicsExit() will fail.
Perhaps there should be a way to unregister the epicsAtExit callback.
There are also a number of one-time allocations which aren't cleaned up.
More CA fixes needed?
Cheers
Ben
On 02/23/2017 03:50 AM, Carsten Winkler wrote:
Hi there,
when your project (e.g. LabVIEW) uses dynamic loading and unloading of
channel access classes your main class will sometimes (at 64 bit nearly
always) crush with a segmentation fault. The reason seems to be missing
free() and delete functions in EPICS Base 3.14.12.6 (I'm sure this
applies also to other EPICS Base versions).
I wrote a tiny test case to check it and it would be great to get any
advise to solve the issue.
Best regards
Carsten
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________________________________
Helmholtz-Zentrum Berlin für Materialien und Energie GmbH
Mitglied der Hermann von Helmholtz-Gemeinschaft Deutscher Forschungszentren e.V.
Aufsichtsrat: Vorsitzender Dr. Karl Eugen Huthmacher, stv. Vorsitzende Dr. Jutta Koch-Unterseher
Geschäftsführung: Prof. Dr. Anke Rita Kaysser-Pyzalla, Thomas Frederking
Sitz Berlin, AG Charlottenburg, 89 HRB 5583
Postadresse:
Hahn-Meitner-Platz 1
D-14109 Berlin
http://www.helmholtz-berlin.de
- Replies:
- RE: memory leak after unloading of ca.lib Hill, Jeff
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