From: | Bruce Momjian <bruce(at)momjian(dot)us> |
---|---|
To: | Magnus Hagander <magnus(at)hagander(dot)net> |
Cc: | Andrew Chernow <ac(at)esilo(dot)com>, James Mansion <james(at)mansionfamily(dot)plus(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: libpq WSACleanup is not needed |
Date: | 2009-01-20 15:41:01 |
Message-ID: | 200901201541.n0KFf1329272@momjian.us |
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Lists: | pgsql-hackers |
Magnus Hagander wrote:
> Bruce Momjian wrote:
> > Andrew Chernow wrote:
> >> Bruce Momjian wrote:
> >>> We could have gone with a more elegant init/uninit solution but there is
> >>> a history of slow upstream adoption of libpq API changes.
> >>>
> >>>
> >> If that's the case, adding a connectdb option seems like a good
> >> alternative. Orignally suggested here:
> >>
> >> http://archives.postgresql.org/pgsql-hackers/2009-01/msg01358.php
> >
> > Right, well the big question is how many people are going to use the
> > connection option vs. doing it for everyone automatically.
> >
> > One possible approach might be to do it automatically, and allow a
> > connection option to disable the WSACleanup() call.
>
> I think that was the suggestion. Have an option that would disable
> *both* the startup and the cleanup call, leaving the responsibility to
> the app.
>
> You can do this for SSL today by calling PQinitSSL().
Right.
> > Actually, right now, if you have two libpq connections, and close one,
> > does WSACleanup() get called, and does it affect the existing
> > connection?
>
> WSACleanup() gets called, but it has an internal reference count so it
> does not have any effect on existing connections.
Ah, OK, so it does its own cleanup on last close, great. I agree a
connection option for this would be good.
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +
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