RE: [reSIProcate] DUM: handling createAppDialogSet() failure

["Derek MacDonald" <derek@xxxxxxxx>]

So, as a UAS, if you lack the resources to handle the call, a 5xx response
is probably appropriate.  If this exception signifies resource allocation
failure, DUM should catch it and automatically send the error response to
the uac; onNewSession would never be called.

--Derek

> -----Original Message-----
> From: Dmitry Semyonov [mailto:dsemyonov@xxxxxxx]
> Sent: Friday, November 05, 2004 10:43 AM
> To: Derek MacDonald
> Cc: resiprocate-devel@xxxxxxxxxxxxxxxxxxx
> Subject: RE: [reSIProcate] DUM: handling createAppDialogSet() failure
> 
> Derek,
> 
> There could be some other resources (hardware DSPs, logical lines,
> etc.) associated with SIP calls. In case of lack of the resources we
> can refuse to create AppDialogSet or we can send 400 response from
> e.g. onNewSession() callback. I'm just asking what is the best current
> practice for this case.
> 
> I found that raising an exception from within createAppDialogSet()
> will result in '400 <Exception text>' response to UAC, and dialog set
> will not be created. There is no similar catch for createAppDialog().
> It looks a bit inconsistent to me.
> 
> On Fri, 5 Nov 2004, Derek MacDonald wrote:
> 
> > There needs to be an AppDialogSet present for DUM to function
> successfully;
> > we could have a catch that creates the default AppDialogSet when such an
> > exception occurs.  Otoh, I can't really think of a circumstance where
> > failing the creation of an AppDialogSet(barring allocation problems) is
> the
> > correct thing to do. Do you have a use case for this?
> >
> > --Derek
> >
> > > -----Original Message-----
> > > From: resiprocate-devel-bounces@xxxxxxxxxxxxxxxxxxx
> [mailto:resiprocate-
> > > devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Dmitry Semyonov
> > > Sent: Thursday, November 04, 2004 5:41 AM
> > > To: resiprocate-devel@xxxxxxxxxxxxxxxxxxx
> > > Subject: [reSIProcate] DUM: handling createAppDialogSet() failure
> > >
> > > Hello.
> > >
> > > It is assumed that createAppDialogSet() always returns "good" pointer.
> > > Should an exception be thrown from overridden createAppDialogSet()
> > > function in case when dialog set creation fails by some reason?
> > >
> > > The same question applies to createAppDialog().
> > > TIA.
> > >
> > > --
> > > ...Bye..Dmitry.
> > > _______________________________________________
> > > resiprocate-devel mailing list
> > > resiprocate-devel@xxxxxxxxxxxxxxxxxxx
> > > https://list.sipfoundry.org/mailman/listinfo/resiprocate-devel
> >
> >
> 
> --
> ...Bye..Dmitry.