Re: atexit_callback can be a net negative

On 03/07/2014 04:10 PM, Tom Lane wrote:
> Florian Weimer <fweimer@redhat.com> writes:
>> On 03/07/2014 03:57 PM, Tom Lane wrote:
>>> It's not a reason not to do something about the much larger chance of
>>> this happening in a direct child process, which certainly won't have a
>>> matching PID.
>
>> Indeed.  Checking getppid() in addition might narrow things down further.
>
> I don't think getppid adds much to the party.  In particular, what to
> do if it returns 1?  You can't tell if you're an orphaned backend (in
> which case you should still do normal shutdown)

Oh.  I didn't know that orphaned backends perform a normal shutdown.

-- 
Florian Weimer / Red Hat Product Security Team