[Devel] need a way to check if transaction has been cancelled

[Klaus Darilion]

Bogdan-Andrei Iancu wrote:
> Hi Juha,
> 
> Juha Heinanen wrote:
> 
>> i have come to the conclusion that the easiest way to solve the
>> canceling problem that klaus reported is to have a function,
>> e.g. t_check_cancel(), that can be called in failure route and tells if
>> the transaction in question has been canceled by the uac.  

sounds simple and sufficient

> fair enough...I would say
> just looking at the reply codes (both UAS and UAC), not sure if you make 
> distinction between a cancelled call due caller or local 
> timeout......so, let's go for this option.

I'm not sure if I understand you correctly, but there is of course 
difference between local timeout and caller cancels:
- local timeout: failure route for voicemail, sequential forking ...
- caller cancels: no further handling

klaus

> 
>> this way failure route would know to do nothing even if min reply code
>> from the branches would be something else than 487.
>>
>> bogdan, is this function hard to implement?
>>  
>>
> I will have to dig a little bit and come back with an answer.
> 
> regards,
> bogdan
> 
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