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

Subject: Re: regarding CaChannel v1.6 handling of dynamic subarrays
From: Andrew Johnson <anj@aps.anl.gov>
To: tech-talk@aps.anl.gov
Date: Thu, 28 Apr 2011 10:44:29 -0500
Hi Matt & Ritesh,

On Thursday 28 April 2011 10:02:45 Matt Newville wrote:
> 
> You didn't say which version of Epics base you're using.   As far as I
> understand, subarrays require a patched version of 3.14.12, or
> 3.14.12.1.     Since they're fairly new, it's entirely possible that
> client libraries made before this feature was added won't work.

Actually that's not quite right, the subArray record has been in Base for a 
long time but its behavior did change slightly in 3.14.12.

The patch to 3.14.12 was necessary to be able to access arrays with more than 
65535 elements, and the fix modified the IOC's CA server code only, not the CA 
client code.  That means Ritesh you need to make sure that the IOC you're 
using was built with a version of Base that has that patch installed, or you 
could just upgrade to Base R3.14.12.1 instead.

- Andrew
-- 
An error is only a mistake if you don't learn from it.
When you learn something from it, it becomes a lesson.

References:
regarding CaChannel v1.6 handling of dynamic subarrays Ritesh Sugandhi
Re: regarding CaChannel v1.6 handling of dynamic subarrays Ritesh Sugandhi
Re: regarding CaChannel v1.6 handling of dynamic subarrays Matt Newville

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