On Wed, Aug 23, 2023 at 08:42:03AM -0600, Todd C. Miller wrote: > On Tue, 22 Aug 2023 19:55:56 -0700, Andrew Hewus Fresh wrote: > > > I noticed this when testing how signal handling worked in fw_update, it > > turns out that if you `pkill -KILL -f fw_update` it may leave behind a perl > > process that is locking the package database. Instead of just waiting > > to be killed, we can have that process check to see if its parent is > > still around and exit if not. > > > > Is there a more appropriate solution to this? > > What's the right way to notice your parent exited? > > One way is to have a pipe between the parent and child and use > select() instead of the sleep() to tell when it goes away.
I would have to see an example of doing that between ksh and perl.
