Re: Problem with reading startup packet after fork

Peter Eisentraut writes:

> I think there will be a race condition around the time of a database
> shutdown. After a new child process is created, the system may go into
> shutdown mode. However, there is a window where the child won't know
> this, because the signal is blocked and/or not set up yet. Note that we
> cannot check for shutdown before forking the child because we won't know
> yet whether the incoming packet is actually a connection request. We
> wouldn't want to send back an error in response to a cancel request, for
> example.

Well, cancel that. The child will see the shutdown because the signal is
blocked around the fork. So unless anyone has issues with the latest
patch I posted I will check it in in slightly clean-up form.

--
Peter Eisentraut peter_e(at)gmx(dot)net http://funkturm.homeip.net/~peter