Re: Large file support available

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: Peter Eisentraut <peter_e(at)gmx(dot)net>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, PostgreSQL Development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Large file support available
Date: 2002-08-22 21:55:10
Message-ID: 200208222155.g7MLtAW10045@candle.pha.pa.us
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Peter, I have received no reply to this question.

---------------------------------------------------------------------------

Bruce Momjian wrote:
> Peter Eisentraut wrote:
> > Tom Lane writes:
> >
> > > Also, even with configure --disable-largefile, I find that pg_config.h
> > > still contains
> > >
> > > /* Define to 1 to make fseeko visible on some hosts. */
> > > #define _LARGEFILE_SOURCE 1
> > >
> > > /* Define to 1 if fseeko (and presumably ftello) exists and is declared. */
> > > #define HAVE_FSEEKO 1
> > >
> > > This strikes me as probably Not a Good Thing, although I haven't dug to
> > > see what the implications are.
> >
> > This is harmless (until proven otherwise). fseeko() is identical to
> > fseek() except that the offset argument uses off_t, and _LARGEFILE_SOURCE
> > makes fseeko() and friends visible in the headers. That's all. No large
> > files involved.
>
> I am confused. fseeko() doesn't look standard to me. I though
> fgetpos/fsetpos() where the standard interfaces for large file support;
> from BSD/OS:
>
> The fgetpos(), fsetpos(), fseek(), ftell(), and rewind() functions con-
> form to ANSI C X3.159-1989 (``ANSI C '').
>
> --
> Bruce Momjian | http://candle.pha.pa.us
> pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
> + If your life is a hard drive, | 13 Roberts Road
> + Christ can be your backup. | Newtown Square, Pennsylvania 19073
>
> ---------------------------(end of broadcast)---------------------------
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>

--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
+ If your life is a hard drive, | 13 Roberts Road
+ Christ can be your backup. | Newtown Square, Pennsylvania 19073

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