Re: Proglem doing CA calls after catching a signal

[Eric Norum <norume@aps.anl.gov>]

Robert Soliday wrote:
> Thanks, this solved my problem.
>
> --Bob
>
> Chris Timossi wrote:
>
> > Robert,
> > I believe that you should replace ca_task_initialize with
>
>  > ca_context_create(ca_enable_preemptive_callback) in main. Then in the
>  > interrupt handler, you can call ca_current_context() to get the
>  > current context and finally join that context with
>  > ca_attach_context().
>
> >

Are you sure that this is safe?  I suspect that calling these functions from a 
signal handler is going to introduce all sorts of race conditions.

Jeff -- can you confirm/deny my suspicions?

--
Eric Norum                                 norume@aps.anl.gov
Advanced Photon Source                     Phone: (630) 252-4793
Argonne National Laboratory