[SR-Users] event_route[tm:branch-failure] question

Daniel-Constantin Mierla miconda at gmail.com
Mon Apr 14 23:56:08 CEST 2014

On 14/04/14 21:15, Juha Heinanen wrote:
> Daniel-Constantin Mierla writes:
>> To get the branch attributes, the code should be similar to execution of
>> failure_route. In failure_route, the attributes are taken from winning
>> branch. In branch-failure, the attributes should be taken from current
>> branch. But in both cases is dealing with a branch structure.
> the code in t_reply.c for branch failure handling already looks very
> similar to failure handling.  run_failure_handlers() use branch
> 	on_failure = t->uac[picked_branch].on_failure;
> whereas run_branch_failure_handlers() use branch
> 	on_branch_failure = t->uac[picked_branch].on_branch_failure;
> then both create faked request environment, run the route handler, and
> restore the original environment.
> why the faked request in case of branch failure does not include correct
> $ru goes beyond my knowledge of tm module.
indeed, looking at the code, the failure-route and branch-failure events 
are using only the request in the uas side of the transaction. It will 
require writing some c code to get the attributes from uac structure. 
Most of them are stored there (uri, branch flags, path, ...) but some 
are not (dst_uri) ...


Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda

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