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<== Date ==> <== Thread ==>

Subject: Calling ca_context_create(1) too late
From: <michael.abbott@diamond.ac.uk>
To: <tech-talk@aps.anl.gov>
Date: Fri, 19 Apr 2013 13:44:09 +0000
I've just discovered that calling ca_context_create(1) after iocInit() appears to succeed (it returns ECA_NORMAL) ... but the resulting context is not very healthy!  In my particular case I find that ca_array_get_callback delivers zero length data, but I expect other deeper problems are to be found.

I understand that I need to call ca_context_create() a good deal earlier, but I don't really understand why it appears to succeed -- is it possible for an error code to be returned instead, please?  (In some future version of EPICS, I'm testing this on 3.14.11.)

Alternatively, is there some reliable way I can test whether it has succeeded?  I don't have full control over when my library is initialised, so detecting an error immediately would be more friendly to the user.

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Replies:
Re: Calling ca_context_create(1) too late Tim Mooney
Re: Calling ca_context_create(1) too late Andrew Johnson
RE: Calling ca_context_create(1) too late Hill, Jeff

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