Hello Robert,
may i ask what platform and sofia version are use using? I am facing the
same issue but i dont'even get the nua_r_shutdown message...

thanks

On Thu, Oct 1, 2009 at 11:28 PM, Robert Han <robert...@vtech.ca> wrote:

>
> Hi,
>
> I just want to raise the issue that we asked you earlier back in July 31
> (see below).
>
> You said that if we shutdown the sofia stack, and if there are outstanding
> sip sessions (for example 4 active sessions), we do not need to nua_bye() or
> even nua_handle_destroy() before invoking nua_shutdown().
>
> according to your reply, the nua stack is guaranteed to terminate
> outstanding nua operations, and then publish nua_i_terminate as the final
> event with a operation handle, so that we can destroy that handle.
>
> that never happened.
>
> our logs below an IP address change, where we had to recycle the Sofia sip
> stack:
>
>
> our link status monitor reports an IP address change, so we proceed to
> recycle our Sofia stack:
>
> -NTC-[20021020:112634.600]|  104||cc        ||sip.fe
>  |DevCoordStatusChange: SIP: NETWORK UP
> -NTC-[20021020:112634.600]|  104||cc        ||sip.fe
>  |DevCoordStatusChange: Network Link Recycled ==> possible new IP address
> change
> -NTC-[20021020:112634.600]|  104||cc        ||sip.fe
>  |DevCoordStatusChange: IP address changed from 192.168.0.52 to
> 192.168.0.77.
> -NTC-[20021020:112634.610]|  104||cc        ||sip.fe
>  |DevCoordStatusChange: Need to recycle Sophia Stack ===> shutting down the
> Sophia SIP stack...
>
>                         IsSofiaStackShuttingDown = TRUE;
>
>                         VT_NOTICE("Shutting down the Sofia SIP Stack...");
>                         nua_shutdown(PortPtr->sofiaStackPtr);
>
> *===> now i expect Sofia stack to terminate the nua operation for each
> outstanding sip session with nua_i_terminated before receiving
> nua_r_shutdown *
> *completion status , but we don't get it hence we don't destroy the nua
> handle.*
>
>
>  DBG [20021020:112635.680]|  168||SIP Event Handler||sip.fe
>  |EventCallback: Received an event = ['nua_r_shutdown'] status = [100
> ,'Shutdown started'] on port [5060]. Handle = [(nil)], HMagic = (nil).
> -NTC-[20021020:112635.680]|  168||SIP Event Handler||sip.fe
>  |EventCallback: Sophia SIP stack shutdown started successfully.
>  DBG [20021020:112635.810]|  168||SIP Event Handler||sip.fe
>  |EventCallback: Received an event = ['nua_r_shutdown'] status = [200
> ,'Shutdown successful'] on port [5060]. Handle = [(nil)], HMagic = (nil).
> -NTC-[20021020:112635.810]|  168||SIP Event Handler||sip.fe
>  |EventCallback: Sophia SIP stack shutdown completed successfully.
> -NTC-[20021020:112635.820]|  168||SIP Event Handler||sip.fe
>  |EventCallback: ---> StartSipStack()
> nta_agent: received garbage from udp/192.168.0.77:5060/sip
> nta_agent: received garbage from udp/127.0.0.1:5060/sip
> -NTC-[20021020:112635.850]|  168||SIP Event Handler||sip.fe
>  |EventCallback: <--- StartSipStack()
>  DBG [20021020:112635.850]|  168||SIP Event Handler||sip.fe
>  |EventCallback: Received an event = ['nua_r_set_params'] status = [200
> ,'OK'] on port [5060]. Handle = [(nil)], HMagic = (nil).
>  DBG [20021020:112635.850]|  168||SIP Event Handler||sip.fe
>  |EventCallback: Discarding event nua_r_set_params.  Handler not
> implemented.
>
>
>
> because we don't recieve the nau_i_terminate, we have a *stale* handle on
> our side, where we did not destroy it, but our client-side binding Session
> context object is already deleted.
>
> would that be a bug? is the Sofia stack suppose to behave as described
> above??
>
> thanks,
> Robert Han, Senior Software Engineer
> VTech Technologies Canada, Ltd.
>
>
> ----- Forwarded by Robert Han/ENG/VTNCAN/VTECH on 10/01/2009 02:01 PM -----
>   *Jen Chitty*
>
> 07/31/2009 12:01 PM
>
>         To:        Robert Han/ENG/VTNCAN/vt...@vtech
>         cc:
>         Subject:        Fw: [Sofia-sip-devel] Changing IP address.
>
>
> ----- Forwarded by Jen Chitty/ENG/VTNCAN/VTECH on 07/31/2009 11:57 AM -----
>   *Michael Jerris <m...@jerris.com>*
>
> 07/31/2009 11:47 AM
>
>         To:        Jen Chitty <jenchi...@vtech.ca>
>         cc:        sofia-sip-devel <sofia-sip-devel@lists.sourceforge.net>
>         Subject:        Re: [Sofia-sip-devel] Changing IP address.
>
>
>
> On Jul 31, 2009, at 2:23 PM, Jen Chitty wrote:
>
>
> Hi,
>
> I'm wondering if there's a way to change the IPv4 address that the Sofia
> stack binds to without having to shutdown and restart the stack.  We're
> using the NUA.
>
> Nope, but would be nice.
>
>
> Right now, if our device's IPv4 address changes we shutdown the Sofia stack
> and start it up again.  This seems to mostly work, but we are experiencing
> some race conditions with callbacks from the Sofia event loop thread
> (running su_root_run) and our application thread, especially with respect to
> handle destruction.  We were hoping that we could just leave the Sofia stack
> running and tell it to change its IPv4 address.
>
> Another question that I'd like an answer to is this:  When shutting down
> the Sofia stack, are we guaranteed to receive a nua_i_terminated event for
> every session that hasn't yet been terminated?
>
> That is the intention, if your not, its a bug.
>
>
> Thanks very much.
>
> --JT
>
> J. T. Chitty, Chief Software Engineer
> VTech Technologies Canada, Ltd.
>
>
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