[ESS] Resume R process after Emacs/ESS crash

[Thomas Lumley]

On Wed, 1 Oct 2008, Rodney Sparapani wrote:
> schimpanski at gmx.de wrote:
>> Hallo, out there!
>> 
>> I am running GNU Emacs/ESS on a remote Unix Server using an X Window client 
>> on my local Mac OS X system. After the X-Window containing Emacs crashed 
>> there's still a R process running doing some heavy computing.
>> 
>> How can I resume this R process and catch the results?
>> Can I start Emacs/ESS again and reconnect to this R process?
>> 
> I've experimented with this.  Just make up a dummy job that takes a long
> time.  Then send it various signals to see what happens.  I think the
> two that you are interested in are STOP and CONT, but YMMV.  Most likely
> this would be in a terminal though.  Not sure how you could get it back
> to iESS.

I don't know how you can get it back to iESS.  You can send it SIGUSR1 to 
quit and save its workspace, as long as it is listening to interrupts.

 	-thomas