[AGENT++] Handling result of missing object?

[dominik.vogt at external.thalesgroup.com]

On Wed, Jan 26, 2011 at 08:56:19PM +0100, Jochen Katz wrote:
>    Am 26.01.2011 08:48, schrieb dominik.vogt at external.thalesgroup.com:
>    > On Tue, Jan 25, 2011 at 10:00:34PM +0100, Jochen Katz wrote:
>    >>    Am 25.01.2011 08:30, schrieb dominik.vogt at external.thalesgroup.com:
>    >>
>    >>    >     if (iv_vb_value &&
>    >>    >         iv_vb_value->valid() &&
>    >>    > -       (iv_vb_value->get_syntax() == sNMP_SYNTAX_INT32 ))
>    >>    > +       (get_syntax() == sNMP_SYNTAX_INT32 ))
>    >>
>    > Note that *iv_vb_value is of type *SnmpSyntax* and does not know
>    > anything about the exception status of the *Vb* where it is
>    > stored.  iv_vb_value->get_syntax() always returns
>    > sNMP_SYNTAX_INT32 because that is its syntax type.  On the other
>    > hand, Vb::get_value() does roughly the same but looks at the
>    > exception_status before calling iv_vb_value->get_syntax().
> 
>    Yes, but I still see no way to get a Vb object where exception status is
>    set and iv_vb_value is not NULL. And if iv_vb_value is NULL, the current
>    get_value() functions will return INVALID. Additionally I see no
>    possibility where iv_vb_value is valid and Vb:get_syntax() returns
>    something different than iv_vb_value->get_syntax().

Possible or not, that's actually what happens:

I sent a GETBULK request that first queried eight scalars and then
one INT32 column of two table rows.  The second row did not exist,
but the first one did.

==> get_syntax() states there was an exception, but get_value()
returns SUCCESS.

Ciao

Dominik ^_^  ^_^

-- 

Dominik Vogt