Hi Andy,
I am going to add streamReload into devStream.h. You can simply do that for now.
I just need to check first which Windows decorations are needed...
Dirk
> -----Ursprüngliche Nachricht-----
> Von: Wang, Andrew <wang126 at llnl.gov>
> Gesendet: Montag, 24. Januar 2022 09:18
> An: Zimoch Dirk (PSI) <dirk.zimoch at psi.ch>; EPICS tech-talk <tech-
> talk at aps.anl.gov>
> Betreff: RE: Calling the streamReload IOC Shell function within C
>
> Hi Dirk,
>
> Since there isn't a function prototype for streamReload, do you recommend that
> I manually add it into devStream.h? gcc isn't liking the fact that I am calling to
> streamReload, because there is no prototype.
>
> Thanks,
> Andy
>
> -----Original Message-----
> From: Zimoch Dirk (PSI) <dirk.zimoch at psi.ch>
> Sent: Saturday, January 22, 2022 3:04 AM
> To: EPICS tech-talk <tech-talk at aps.anl.gov>; Wang, Andrew
> <wang126 at llnl.gov>
> Cc: Michael Davidsaver <mdavidsaver at gmail.com>
> Subject: Re: Calling the streamReload IOC Shell function within C
>
> Hi Andy
>
> You can call extern „C“ long streamReload(const char* recordname) directly
> from C/C++. If NULL is passed for recordname, then all StreamDevice records
> reload. If a record is in the middle of processing, the running protocol is aborted
> and the record goes to INVALID alarm until the next processing.
>
> It seems I have forgotten to put the function prototype into devStream.h. Will
> be done in the next release.
>
> Dirk
>
> > Am 22.01.2022 um 06:08 schrieb Michael Davidsaver via Tech-talk <tech-
> talk at aps.anl.gov>:
> > On 1/21/22 19:39, Wang, Andrew via Tech-talk wrote:
> >> This is a far-fetched question, but I was wondering whether there is a
> possibility of executing streamReload, or a similar functionality, within a C
> function. The reason why I ask is because I saw within this Github link
> (https://urldefense.us/v3/__https://github.com/epics-
> modules/ioczed/blob/master/zzzApp/Db/streamExample.db__;!!G2kpM7uM-
> TzIFchu!gjnSZo93VcnoDkmziao7QLSXtfmZDUg0hZ5hqdkj-
> M2oKQch9GQRdAvkPjUS4spw6a4$
> <https://urldefense.us/v3/__https://github.com/epics-
> modules/ioczed/blob/master/zzzApp/Db/streamExample.db__;!!G2kpM7uM-
> TzIFchu!gjnSZo93VcnoDkmziao7QLSXtfmZDUg0hZ5hqdkj-
> M2oKQch9GQRdAvkPjUS4spw6a4$ >) that the SUB record calls streamReload.
> However, I couldn’t locate the source code for that, so I am not entirely sure
> how it is used and what its arguments are. Thoughts?
> >
> > The registrar code adding both the function callable from subRecord as
> > well as iocsh.
> >
> > https://urldefense.us/v3/__https://github.com/paulscherrerinstitute/St
> >
> reamDevice/blob/dfbd308d4602e7cb99d7f60ddf35909a70f41c4f/src/StreamEpi
> > cs.cc*L297-L307__;Iw!!G2kpM7uM-
> TzIFchu!gjnSZo93VcnoDkmziao7QLSXtfmZDUg
> > 0hZ5hqdkj-M2oKQch9GQRdAvkPjUS5UlYp3c$
> >
> > So you could do something like
> >
> >> iocshCmd("streamReload");
> >
> > cf. iocsh.h from Base.
> >
> > Since it is already callable from a subRecord I assume it is
> > thread-safe.
- Replies:
- RE: Calling the streamReload IOC Shell function within C Wang, Andrew via Tech-talk
- References:
- Calling the streamReload IOC Shell function within C Wang, Andrew via Tech-talk
- Re: Calling the streamReload IOC Shell function within C Michael Davidsaver via Tech-talk
- Re: Calling the streamReload IOC Shell function within C Zimoch Dirk (PSI) via Tech-talk
- RE: Calling the streamReload IOC Shell function within C Wang, Andrew via Tech-talk
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