Experimental Physics and Industrial Control System
That's good news, at least we're safe for a while. We'll plan on
rewriting the code sometime in the near future.
Thanks Andrew.
Michael Dunning
SLAC National Accelerator Laboratory
Accelerator Research Division Test Facilities
2575 Sand Hill Road, MS 63
Menlo Park, CA 94025
+1 (650) 926-5200
On Tue, Aug 15, 2017 at 11:17 AM, Andrew Johnson <[email protected]> wrote:
> Hi Michael,
>
> On 08/15/2017 12:52 PM, Dunning, Michael wrote:
>> Thanks for the background info. In my case, I think it's the latter:
>> working around limitations of subRecord. But we're hesitant to
>> completely rewrite the code because it's very old and very extensive.
>>
>> Is there any reason to suspect that defining the macro as I have would
>> not work presently, or break in the future?
>
> Defining the macro should continue to work for 3.15.x, 3.16.x and at
> least for the first release of EPICS 7; we aren't planning to change the
> basic database link implementation for the time-being, but I can't
> promise how long that will last. If you can rewrite this code to use the
> aSub record type I would recommend that you add that work to your plans
> for the medium-term.
>
> BTW since it's being run within the context of a subRecord subroutine
> there is no need for your code snippet to be calling dbScanLock() and
> dbScanUnlock() on the linked-to record; in 3.14 and above all records
> linked together using DB links are placed in the same lock-set. This
> might not have been the case when the code was originally written though.
>
> - Andrew
>
> --
> Arguing for surveillance because you have nothing to hide is no
> different than making the claim, "I don't care about freedom of
> speech because I have nothing to say." -- Edward Snowdon
- References:
- Replacement for dbGetPdbAddrFromLink ? Dunning, Michael
- Re: Replacement for dbGetPdbAddrFromLink ? Stubbs, Scott A.
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- Re: Replacement for dbGetPdbAddrFromLink ? Dunning, Michael
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