Re: CA connection management problem

[Andrew Johnson <anj@aps.anl.gov>]

Owens, PH (Peter) wrote:
> -----Original Message-----
> From: Victor F E Pucknell [mailto:v.f.e.pucknell@dl.ac.uk]
>
>  Here is a simple test using  the  EPICS caget
>    Normally it is in a loop using caget every 2 seconds.
> If you  "quit"  the EPICS server then I get a serious failure  and the 
> test program is lost somewhere in the ca library

Please delete the "goto START" line from inside the for() loop and try 
again; the program should not be recreating its CA context just because 
a channel has disconnected.  The CA client library handles disconnection 
and reconnections itself internally, and by recreating the context every 
time there's a timeout error you're almost certainly confusing it.

I'm not saying that the library shouldn't be protected from this kind of 
usage (that's up to Jeff Hill to decide), but your usage is definitely 
wrong.

- Andrew
--
When a distinguished but elderly scientist states that something is
possible, he is almost certainly right.  When he states that something
is impossible, he is very probably wrong.  -- Arthur C. Clarke