Re: Large file support available - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: Large file support available
Date
Msg-id 200208222155.g7MLtAW10045@candle.pha.pa.us
Whole thread Raw
In response to Re: Large file support available  (Bruce Momjian <pgman@candle.pha.pa.us>)
Responses Re: Large file support available
List pgsql-hackers
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@candle.pha.pa.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)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
> 

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
359-1001+  If your life is a hard drive,     |  13 Roberts Road +  Christ can be your backup.        |  Newtown Square,
Pennsylvania19073
 


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