Re: libpq thread-locking

From: Bruce Momjian <bruce(at)momjian(dot)us>
To: Magnus Hagander <magnus(at)hagander(dot)net>
Cc: PostgreSQL-patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: libpq thread-locking
Date: 2008-05-16 15:04:21
Message-ID: 200805161504.m4GF4LS21161@momjian.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-patches

Magnus Hagander wrote:
> Bruce Momjian wrote:
> > Bruce Momjian wrote:
> > > Magnus Hagander wrote:
> > > > Attached patch adds some error checking to the thread locking
> > > > stuff in libpq. Previously, if thread locking failed for some
> > > > reason, we would just fall through and do things without locking.
> > > > This patch makes us abort() instead. It's not the greatest thing
> > > > probably, but our API doesn't let us pass back return values...
> > >
> > > I have looked over the patch and it seems fine, though I am
> > > concerned about the abort() case with no output. I realize stderr
> > > might be going nowhere, but in fe-print.c we do an fprintf(stderr)
> > > for memory failures so for consistency I think we should do the
> > > same here. If there is concern about code bloat, I suggest a macro
> > > at the top of the file for thread failure exits:
> > >
> > > #define THEAD_FAILURE(str) \
> > > do { \
> > > fprintf(stderr, libpq_gettext("Thread failure:
> > > %s\n")); \ exit(1); \
> > > } while(0)
> >
> > Oh, this is Tom saying he doesn't like stderr and the added code lines
> > for failure:
> >
> > http://archives.postgresql.org/pgsql-patches/2008-04/msg00254.php
> >
> > I think the macro and consistency suggest doing as I outlined.
>
> Does this one look like what you're suggesting?

Yep.

--
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. +

In response to

Responses

Browse pgsql-patches by date

  From Date Subject
Next Message Merlin Moncure 2008-05-16 15:13:43 Re: libpq object hooks
Previous Message Tom Lane 2008-05-16 14:59:08 Re: libpq object hooks