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Re: allowing multiple PQclear() calls

From: Boszormenyi Zoltan <zb(at)cybertec(dot)at>
To: Simon Riggs <simon(at)2ndQuadrant(dot)com>
Cc: Marko Kreen <markokr(at)gmail(dot)com>, Josh Kupershmidt <schmiddy(at)gmail(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: allowing multiple PQclear() calls
Date: 2013-01-02 15:11:49
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
2012-12-11 16:09 keltezéssel, Simon Riggs írta:
> On 11 December 2012 12:18, Boszormenyi Zoltan <zb(at)cybertec(dot)at> wrote:
>>>> Such mechanism already exist - you just need to set
>>>> your PGresult pointer to NULL after each PQclear().
>>> So why doesn't PQclear() do that?
>> Because then PQclear() would need a ** not a *. Do you want its
>> interface changed for 9.3 and break compatibility with previous versions?
> No, but we should introduce a new public API call that is safer,
> otherwise we get people continually re-inventing new private APIs that
> Do the Right Thing, as the two other respondents have shown.

How about these macros?

Best regards,
Zoltán Böszörményi

Zoltán Böszörményi
Cybertec Schönig & Schönig GmbH
Gröhrmühlgasse 26
A-2700 Wiener Neustadt, Austria

Attachment: pqclear-pqfinish-set-null.patch
Description: text/x-patch (1.1 KB)

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