Re: [HACKERS] compile warning in CVS HEAD

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: Andrew Dunstan <andrew(at)dunslane(dot)net>
Cc: "Patches (PostgreSQL)" <pgsql-patches(at)postgresql(dot)org>
Subject: Re: [HACKERS] compile warning in CVS HEAD
Date: 2004-04-27 16:04:55
Message-ID: 200404271604.i3RG4tS27186@candle.pha.pa.us
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Where are we on this patch? There was concern about the malloc() but
that can be fixed.

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

Andrew Dunstan wrote:
>
> Patch attached. Also adds a malloc() check that Neil wanted.
>
> cheers
>
> andrew
>
> Tom Lane wrote:
>
> >Andrew Dunstan <andrew(at)dunslane(dot)net> writes:
> >
> >
> >>*sigh*
> >>
> >>
> >
> >
> >
> >>my local (linux) man for gettimeofday says this:
> >>
> >>
> >
> >
> >
> >> struct timeval {
> >> time_t tv_sec; /* seconds */
> >> suseconds_t tv_usec; /* microseconds */
> >> };
> >>
> >>
> >
> >Yeah, but mine (HPUX) says that tv_sec is "unsigned long". I suspect
> >that on Darwin the types disagree as to signedness.
> >
> >
> >
> >>We could do what you say, or could we just cast it?
> >>
> >>
> >
> >If they really were different types (as in different widths) then
> >casting the pointer would be a highly Wrong Thing. I think copying
> >to a local is safer, even if it does waste a cycle or two.
> >
> > regards, tom lane
> >
> >---------------------------(end of broadcast)---------------------------
> >TIP 6: Have you searched our list archives?
> >
> > http://archives.postgresql.org
> >
> >
> >

> Index: src/backend/utils/error/elog.c
> ===================================================================
> RCS file: /projects/cvsroot/pgsql-server/src/backend/utils/error/elog.c,v
> retrieving revision 1.128
> diff -c -r1.128 elog.c
> *** src/backend/utils/error/elog.c 15 Mar 2004 15:56:23 -0000 1.128
> --- src/backend/utils/error/elog.c 18 Mar 2004 22:55:44 -0000
> ***************
> *** 1035,1041 ****
> --- 1035,1045 ----
> int result_len = 2*NAMEDATALEN + format_len +120 ;
>
> if (result == NULL)
> + {
> result = malloc(result_len);
> + if (result == NULL)
> + return "";
> + }
> result[0] = '\0';
>
> if (format_len > 0)
> ***************
> *** 1119,1126 ****
> localtime(&stamp_time));
> break;
> case 's':
> j += strftime(result+j, result_len-j, "%Y-%m-%d %H:%M:%S",
> ! localtime(&(MyProcPort->session_start.tv_sec)));
> break;
> case 'i':
> j += snprintf(result+j,result_len-j,"%s",
> --- 1123,1131 ----
> localtime(&stamp_time));
> break;
> case 's':
> + stamp_time = (time_t)(MyProcPort->session_start.tv_sec);
> j += strftime(result+j, result_len-j, "%Y-%m-%d %H:%M:%S",
> ! localtime(&stamp_time));
> break;
> case 'i':
> j += snprintf(result+j,result_len-j,"%s",

>
> ---------------------------(end of broadcast)---------------------------
> TIP 6: Have you searched our list archives?
>
> http://archives.postgresql.org

--
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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