[SR-Users] Register Transaction Callback function

[Daniel-Constantin Mierla]

Hello,

On 11/23/11 1:49 PM, Bruno Bresciani wrote:
> Hi All,
>
> Why in the kamailio 3.1.2 I have to give a sip_msg parameter to 
> function register_tmcb when I want register a function of my module 
> with TMCB_RESPONSE_OUT parameter? I can't understand this behavior...
the callback is for specific transaction, which is created by t_relay() 
(or other tm functions such as t_newtran()). At the moment a module 
registers a callback, the transaction may not be created yet, so giving 
the sip message it required to build a list callbacks attached to 
message id -- once the transaction for that request is created, the 
callabacks list will be linked to it.

Is it any problem to give this parameter? you should have a valid sip 
msg structure in your functions exported for config usage.

Cheers,
Daniel

-- 
Daniel-Constantin Mierla -- http://www.asipto.com
Kamailio Advanced Training, Dec 5-8, Berlin: http://asipto.com/u/kat
http://linkedin.com/in/miconda -- http://twitter.com/miconda