Re: MODERATOR WARNING Re: [GENERAL] Exception Handling in C-Language Functions?

OK :)

Is there a way to do this automatically?

Cheers,
David.
On Mon, Dec 03, 2012 at 03:14:54AM -0300, Alvaro Herrera wrote:
> MODERATOR WARNING
>
> I noticed that this guy Rahul seems to be reinjecting old list emails
> somehow. Please don't approve anything coming from him. Observe this
> example:
>
> http://postgresql.1045698.n5.nabble.com/Re-GENERAL-MS-Access-and-Stored-procedures-td1843848.html
> http://postgresql.1045698.n5.nabble.com/Re-GENERAL-MS-Access-and-Stored-procedures-td5734652.html
> The original message was posted in 2005!
>
> The message here is this one (also in 2005):
> http://postgresql.1045698.n5.nabble.com/GENERAL-Exception-Handling-in-C-Language-Functions-td1843896.html
>
> I have no idea what's going on. Maybe it's something to do with Nabble.
> There are others pending moderation in pgsql-admin and pgsql-hackers too.
>
> rahul143 wrote:
> > I have the created a C-Language function (code is below). Now, I
> > wonder: How do I handle exceptions, for example if malloc cannot assign
> > the necessary memory? Do "palloc" and "pfree" handle such a case
> > cleanly? Should I simply use an "assert"?
> >
> > #include "postgres.h"
> > #include <string.h>
> > #include <stdlib.h>
> > #include "fmgr.h"
> > #include "libinn.h"
> >
> > PG_FUNCTION_INFO_V1(ffiinews_uwildmat);
> >
> > /* Wrapper for INN's function uwildmat. Needs parameters in UTF-8. */
> > Datum ffiinews_uwildmat(PG_FUNCTION_ARGS) {
> > VarChar *text = PG_GETARG_VARCHAR_P(0);
> > VarChar *pattern = PG_GETARG_VARCHAR_P(1);
> > int text_len = VARSIZE(text)-VARHDRSZ;
> > int pattern_len = VARSIZE(pattern)-VARHDRSZ;
> > char *tmp_text = (char *)malloc(text_len+1);
> > if (tmp_text == NULL)
> > ; /* What now? */
> > char *tmp_pattern = (char *)malloc(pattern_len+1);
> > if (tmp_pattern == NULL)
> > ; /* What now? */
> > strncpy(tmp_text, VARDATA(text), text_len);
> > tmp_text[text_len] = '\0';
> > strncpy(tmp_pattern, VARDATA(pattern), pattern_len);
> > tmp_pattern[pattern_len] = '\0';
> > bool matches = uwildmat(tmp_text, tmp_pattern);
> >
> >
> >
> > -----
> >
> >
> >
> >
> > --
> > View this message in context: http://postgresql.1045698.n5.nabble.com/GENERAL-Exception-Handling-in-C-Language-Functions-tp5734656.html
> > Sent from the PostgreSQL - general mailing list archive at Nabble.com.
> >
> >
> > --
> > Sent via pgsql-general mailing list (pgsql-general(at)postgresql(dot)org)
> > To make changes to your subscription:
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>
>
> --
> Álvaro Herrera http://www.2ndQuadrant.com/
> PostgreSQL Development, 24x7 Support, Training & Services

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