Re: [Vala] Creating bindings for Oracle OCI

[Jiří Zárevúcky <zarevucky jiri gmail com>]

You have problem with pointers, again. ;) Once you add "out", it's not
a pointer anymore as far as Vala is concerned, so you have to omit the
asterisk. You are essentially replacing it.

2009/6/17 Shawn Ferris <shawn ferris gmail com>:
> Ooops.. Resending, didn't realize this didn't go to the list.. my
> apologies.
>
> On Tue, 2009-06-16 at 21:44 -0600, Shawn Ferris wrote:
> > Man.. I'm so close I can smell it.. I actually have the bindings working
> > to the point were I am fetching a value from a table. Unfortunately, the
> > way it sits, I'm stuck with ints alone.. as soon as I try to return a
> > string, the code aborts.. there's actually two cases where the results
> > are the same and I'm assuming the fix for one will fix the other, so
> > I'll ask for help on the easier one. In this case, it's the ErrorGet
> > function defined as:
> >
> > sword OCIErrorGet ( void      *hndlp,
> >                   ub4        recordno,
> >                   OraText       *sqlstate,
> >                   ub4        *errcodep,
> >                   OraText       *bufp,
> >                   ub4        bufsiz,
> >                   ub4        type );
> >
> > My vapi definition:
> >
> >   [CCode (cname = "OCIErrorGet")]
> >   public int ErrorGet (
> >     Error*       error,
> >     int          record,
> >     out string*  sqlstate,
> >     out int*     errcode,
> >     out string*  buffer,
> >     int          buffersz,
> >     HType        type
> >   );
> >
> > And a C example:
> >
> >   text errbuf[512];
> >   OCIErrorGet ((dvoid *) errhp, (ub4) 1, (text *) NULL, &errcode,
> >             errbuf, (ub4) sizeof(errbuf), (ub4) OCI_HTYPE_ERROR);
> >
> > If I leave off errbuf (which should be the physical message string
> > assoctiate to errcode) everything works fine. EG:
> >
> >     int*    errno;
> >     OCI.ErrorGet ( err, 1, null, out errno, null, 0, HType.ERROR);
> >     stdout.printf("Error - ORA-%5.5d (%s)\n", (int)errno, action);
> >
> > I absolutely get the right error code (i can force which error I gen)
> > but as soon as I try to touch errbuf the program aborts.. I can not for
> > the life of me find the correct way to do this. Can someone point me in
> > the right direction? And then, I'll warn you that I'll have at least one
> > more email.. but more critique and style.. I'm assuming I haven't
> > followed the vala way, but I'm more interested in getting it to work and
> > addressing style later.
> >
> > Thanks for the help!
> > SMF
>
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