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<== Date ==> <== Thread ==>
Subject: Re: Record referencing inside device support
From: "Mooney, Tim M. via Tech-talk" <[email protected]>
To: Allan Serra Braga Bugyi <[email protected]>, "[email protected]" <[email protected]>
Date: Wed, 7 Nov 2018 17:20:43 +0000

Hi Allan,


If you look at some existing device-support code (for example,  base-3.15.4/src/std/dev/devAaoSoft.c) you'll see that routines in that file are called with a pointer to the record struct.  You might want to look at this presentation from a recent EPICS class:


https://epics.anl.gov/docs/APS2015/01-EPICS-Device-Support.pdf



Tim Mooney ([email protected]) (630)252-5417
Beamline Controls Group (www.aps.anl.gov)
Advanced Photon Source, Argonne National Lab

From: Allan Serra Braga Bugyi <[email protected]>
Sent: Wednesday, November 7, 2018 11:10:54 AM
To: Mooney, Tim M.; [email protected]
Subject: Re: Record referencing inside device support
 

Hi Tim,


My limited comprehension of EPICS building facility may be blurring my understanding of the problem. In my comprehension, EPICS building facility generates header files from .db files, right? So, each record will be an "instance" of the accordingly struct. However, this happens during compilation time. Where would it be possible to know the structs' names for referencing inside device support?


Best,
Allan S. B. Bugyi
Technology Development Analyst
[email protected]
(+55 19) 3512-3520

SOL/Beamline Software Group
Brazilian Synchrotron Light Laboratory (LNLS)
Center of Research in Energy and Materials (CNPEM)
http://lnls.cnpem.br


De: Mooney, Tim M. <[email protected]>
Enviado: quarta-feira, 7 de novembro de 2018 14:53:19
Para: Allan Serra Braga Bugyi; [email protected]
Assunto: Re: Record referencing inside device support
 

Hi Allan,


My first thought would be to write device support for the record.  Device support has access to the record structure.


Tim Mooney ([email protected]) (630)252-5417
Beamline Controls Group (www.aps.anl.gov)
Advanced Photon Source, Argonne National Lab

From: [email protected] <[email protected]> on behalf of Allan Serra Braga Bugyi <[email protected]>
Sent: Wednesday, November 7, 2018 10:47:25 AM
To: [email protected]
Subject: Record referencing inside device support
 

Hello all,


I have the need to access the record support structs inside my C code. What I want is to be able to access the records' fields to pass them as parameters to some functions. These functions are inside a dynamic library .so from the manufacturer. Any idea or workaround?


Many thanks!
Allan S. B. Bugyi
Technology Development Analyst
[email protected]
(+55 19) 3512-3520

SOL/Beamline Software Group
Brazilian Synchrotron Light Laboratory (LNLS)
Center of Research in Energy and Materials (CNPEM)
http://lnls.cnpem.br


References:
Record referencing inside device support Allan Serra Braga Bugyi
Re: Record referencing inside device support Mooney, Tim M. via Tech-talk
Re: Record referencing inside device support Allan Serra Braga Bugyi
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