do package updates automatically kill running exes?

[Jon TURNEY]

On 13/08/2015 07:19, Andrew Schulman wrote:
> I've noticed that when I update a package, the exe's in it get killed.  For
> example, when emacs gets updated, my running emacsen die.
>
> Is this something that setup explicitly does, for all packages?  Or that some
> packages do for themselves in a preremove script?  Or just a byproduct of
> replacing a running exe?

Since [1], if a dll or exe can't be updated because it is loaded into a 
process, setup can terminate the process.

But this isn't something it should be doing *silently*, there being both 
a dialog to request permission to kill the process, and logging of the 
process being killed, so I'm not sure how you can be unclear on this?

[1] 
https://sourceware.org/git/gitweb.cgi?p=cygwin-setup.git;a=commit;h=ec366f61ad90cab92bc685900281e1cfe4cc7cb1