Re: Skip updating an output link in aSub ?

[Lingyun Yang <lingyun.yang@gmail.com>]

Thank you all for the help.

Unfortunately this aSub is outputing both "calculation" and "action". So I want to forward the "calculations"  but inhibit the actions.

This all/none solutions does not work for me.

Using calcout as Kay said should work. Although I need to write hundreds of them after splitting a waveform to individual PV,  It seems have some flexibility.

Lingyun
 

On Thu, Jan 14, 2016 at 11:21 AM, Andrew Johnson <anj@aps.anl.gov> wrote:

On 01/13/2016 09:43 PM, Michael Davidsaver wrote:
>> Is there anyway skip updating any/some of the output PVs in the aSub
> routine ?
>
> Nope sorry.  At least no directly.

Wrong; as John Priller pointed out (the Wiki documentation indirectly
explains this, but isn't terribly clear about it) returning a non-zero
value from the subroutine tells the record not to put the output links.
The aSub record sometimes does things a bit differently than the other
record types...

- Andrew

--
There are only two hard problems in distributed systems:
  2. Exactly-once delivery
  1. Guaranteed order of messages
  2. Exactly-once delivery
 -- Mathias Verraes

--

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Lingyun YANG
Skype Name: lingyun_zjdt