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

Subject: Re: CAC problem between RTEMS and vxWorks
From: Wesley Moore <wmoore@jlab.org>
To: Benjamin Franksen <benjamin.franksen@helmholtz-berlin.de>, Jeff Hill <johill@lanl.gov>
Cc: tech-talk@aps.anl.gov
Date: Fri, 28 Sep 2012 14:17:01 -0400 (EDT)
Ben and Jeff,

Back to try to wrap this up...  Just added a timeout loop to watch pvConnected() and it shows I only needed a small delay after pvAssign().  Haven't seen any adverse effects on the RTEMS client using this dynamic reconnection scheme.  By doing this, I've reduced the number of monitored PVs in the legacy sequencers from 8032 to 36.

When rebooting the RTEMS client (running the sequencers), reconnection to the VxWorks server has taken as long as 4min.  I've added a stringout to give me the status of the connections.  VxWorks cleans up the dead sockets eventually, so this shouldn't be an issue during normal operations.

Thanks for all the time you have put into sorting out the various issues.  Let me know if there's anything further you want to test.

Wesley

----- Original Message -----
> From: "Benjamin Franksen" <benjamin.franksen@helmholtz-berlin.de>
> To: tech-talk@aps.anl.gov
> Sent: Thursday, September 27, 2012 3:34:10 PM
> Subject: Re: CAC problem between RTEMS and vxWorks
>
> Am Dienstag, 25. September 2012, 23:10:28 schrieb Benjamin Franksen:
> > I think we are closing in. I should have looked at the program Wes
> > sent to
> > me, which I did not at first. I did now and it is obvious (to me)
> > now that
> > it cannot work as expected. Specifically, doing
> >
> >         pvAssign(vidOutputStat, pvName);
> >         ...
> >         pvPut(vidOutputSel);
>
> Sorry, cut'n'paste error. I mean this part of your program (quoted
> literally):
>
>                         printf("pvAssign Status:  %d\n",
>                                 pvAssign(vidOutputStat, pvName));
>                         pvGet(vwrName[ii]);
> /*                        strcpy(vidOutputStat, vwrName[ii]);*/
>                         sprintf(vidOutputStat, "%s", vwrName[ii]);
>                         printf("pvPut Status:     %d\n",
>                                 pvPut(vidOutputStat));
>
> where you first
>
>         pvAssign(vidOutputStat, pvName)
>
> and then almost immediately afterwards (i.e. w/o waiting for the PV
> to be
> connected)
>
>         pvPut(vidOutputStat)
>
> Cheers
> --
> Ben Franksen
> ()  ascii ribbon campaign - against html e-mail
> /\  www.asciiribbon.org   - against proprietary attachments
>
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Replies:
Re: CAC problem between RTEMS and vxWorks Benjamin Franksen
References:
Re: CAC problem between RTEMS and vxWorks Benjamin Franksen

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