[sr-dev] Kamailio get sip msg from transaction

[Jason Penton]

Hey Daniel,

Ok I worked it out. In the async callback before I call tmb.t_continue you
need to restore the transaction avp lists before trying to add an AVP to be
used in the "continue route" of the cfg file. do for example:

set_avp_list(AVP_TRACK_FROM | AVP_CLASS_URI, &t->uri_avps_from );
set_avp_list(AVP_TRACK_TO | AVP_CLASS_URI, &t->uri_avps_to );
set_avp_list(AVP_TRACK_FROM | AVP_CLASS_USER, &t->user_avps_from );
set_avp_list(AVP_TRACK_TO | AVP_CLASS_USER, &t->user_avps_to );
set_avp_list(AVP_TRACK_FROM | AVP_CLASS_DOMAIN, &t->domain_avps_from );
set_avp_list(AVP_TRACK_TO | AVP_CLASS_DOMAIN, &t->domain_avps_to );
...
code to add my AVP to be made available to cfg file
...

tmb.t_continue(data->tindex, data->tlabel, data->act);

Hopefully this make more sense?

Cheers
Jason
On Tue, Oct 2, 2012 at 2:45 PM, Daniel-Constantin Mierla
<miconda at gmail.com>wrote:

>  Hello,
>
> not clear now what you try to do, but have in mind that avps are attached
> to a sip message or transaction. You cannot access it if it is set  in
> other process for a transaction you don't have access to it anymore. Use
> some other sort of shared memory structure.
>
> Cheers,
> Daniel
>
>
> On 10/2/12 2:12 PM, Jason Penton wrote:
>
> Hey Daniel,
>
> plse see inline:
>
> On Tue, Oct 2, 2012 at 2:02 PM, Daniel-Constantin Mierla <
> miconda at gmail.com> wrote:
>
>>  Hello,
>>
>>
>> On 10/2/12 1:58 PM, Jason Penton wrote:
>>
>> Okay I solved this by using the uas->request structure ;)
>>
>>  indeed, this is the right way -- forgot to answer this email...
>>
>>   np, thanks!
>
>
>>
>>
>> One more question re. async "pattern" Daniel:
>> In the "continued" code, prior to executing the config file actions, can
>> you add an avp (ie from within the code prior to calling t_continue, can we
>> add an avp and have it available to the config file in the "continued"
>> route block)?
>>
>>
>>  IIRC, at that moment you have to add it to the list that is stored in
>> transaction. Maybe you can use a $var() and then move it in avp list inside
>> the continued route block.
>>
>
> Im not sure I understand you here? Just to make sure I am clear. I am
> effectively trying to do this:
>
> longrunningfunction();  #this is where the async will happen, so the next
> line will be run by another process
> if ($avp(s:return_val_from_longrunningfunction) > 0) {
>    blah;
> }
>
> So, I am asking how I can set the
> $avp(s:return_val_from_longrunningfunction). I can tell you from practice
> that it doesnt work using the default add_avp from within my async callback
> process. I have not researched yet how the avps are stored, architected,
> etc. But I am imagineing that right now the process I am in has no "access"
> to avp "storage". Either that or the avp "storage" is overwritten with the
> t_continue code? Would be great if you could shed some light?
>
>
>> Cheers,
>> Daniel
>>
>>
>> cheers
>> Jason
>>
>> On Mon, Oct 1, 2012 at 3:46 PM, Jason Penton <jason.penton at gmail.com>wrote:
>>
>>> Hi (Daniel this may be for you re. async)
>>>
>>> Is it possible to get the sip message from a transaction after using
>>> t_continue. The reason I ask is that using the async "pattern", how would
>>> one be able to use transactional replies in code using t_reply(code,
>>> message). Is the only way to store the sip_msg in shm for later use,
>>> because if I look at TM I see there is no storage for the original SIP
>>> request?
>>>
>>> Cheers
>>> Jason
>>>
>>
>>
>>
>>  _______________________________________________
>> sr-dev mailing listsr-dev at lists.sip-router.orghttp://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
>>
>>
>> --
>> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
>> Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - http://asipto.com/u/kat
>> Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - http://asipto.com/u/katu
>>
>>
>
> --
> Daniel-Constantin Mierla - http://www.asipto.comhttp://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
> Kamailio Advanced Training, Berlin, Nov 5-8, 2012 - http://asipto.com/u/kat
> Kamailio Advanced Training, Miami, USA, Nov 12-14, 2012 - http://asipto.com/u/katu
>
>
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