Re: Offsets of `struct Port` are no longer constant - Mailing list pgsql-hackers

From Heikki Linnakangas
Subject Re: Offsets of `struct Port` are no longer constant
Date
Msg-id e5a6a50e-0e7c-4c74-b816-bce492fde433@iki.fi
Whole thread Raw
Responses Re: Offsets of `struct Port` are no longer constant
List pgsql-hackers
On 11/11/2024 18:34, Jacob Champion wrote:
> Hi all,
> 
> A comment at the end of the Port struct says
> 
>          /*
>           * OpenSSL structures. (Keep these last so that the locations of other
>           * fields are the same whether or not you build with SSL enabled.)
>           */
> 
> but as part of the direct-SSL changes in d39a49c1e45 (cc'd Heikki),
> some additional fields snuck in after it.
> 
> I assume it's too late to change this for 17, but should this be
> addressed in HEAD? I've attached a draft patch (untested, beware)
> which should no longer rely on field order.

Oops. Fortunately this is not likely to cause trouble in practice, I 
can't imagine an extension peeking into 'raw_buf' and friends. But yeah, 
we should do something at least on HEAD. +1 on your patch; I'll commit 
that unless someone has better ideas.

On REL_17_STABLE, we should probably adjust the comment to warn that 
'raw_buf' and friends can move depending on USE_OPENSSL.

-- 
Heikki Linnakangas
Neon (https://neon.tech)




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