Re: Sequence monitor not getting callback

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

Hi Murali,

On 2011-10-04 Shankar, Murali wrote:
> Separating out the server (process variables) and the client (sequence
> programs) into two separate processes seems to fix this issue. I used the
> same executable for both processes; though for the server I could have
> probably used softIoc.
> 
> So, the issue is perhaps the client part and the server part of
> ca_add_masked_array_event/ca_create_subscription tripping over each other
> if they run within the same process in this context.

<<snip>>

This points to the problem being a bug in the local interface between the CA 
client library and the IOC server -- there is a special interface that the 
client uses when it's running in the same process as the IOC to access local 
channels.  That puts the issue in Jeff Hill's area of responsibility.  He may 
not have been following your previous posts, so could you summarize the bug 
that you're seeing and explain how to replicate it as simply as possible, 
he'll then be able to look further when he has the time to do so.

Thanks,

- Andrew
-- 
Optimization is the process of taking something that works and
replacing it with something that almost works, but costs less.
-- Roger Needham