[AGENT++] Handling result of missing object?

[Jochen Katz]

Am 25.01.2011 08:30, schrieb dominik.vogt at external.thalesgroup.com:
> On Tue, Jan 25, 2011 at 07:35:26AM +0100, Dominik Vogt wrote:
>>    For the records:  With the patch, Vb::get_value() returns
>>    SNMP_CLASS_INVALID, so it's not necessary to add an additional
>>    get_syntax() or get_exception_status().
> 
> *rolleyes*  I should have tested that instead of just reading the
> source code.  get_value() does *not* return ...INVALID.  However,
> I think it should.  This can be done by calling get_syntax()
> indirectly through Vb::get_syntax() instead of directly through
> SnmpSyntax->get_syntax().  See attached patch.

>     if (iv_vb_value &&
>         iv_vb_value->valid() &&
> -       (iv_vb_value->get_syntax() == sNMP_SYNTAX_INT32 ))
> +       (get_syntax() == sNMP_SYNTAX_INT32 ))

Like you, reading the source code, I don't see any possibility for
get_value() returning anything different than INVALID after the
exception status has been set, as iv_vb_value is freed and set to 0. So
my guess would be, that something with the rebuild after the change to
vb.h failed.

Regards,
  Jochen