Re: [sr-dev] git:master: tmx: documentation for t_precheck_trans()

On 19/08/14 09:07, Juha Heinanen wrote: The purpose of t_check_trans() there is for the case when the transaction was already created by another process, resulting in retransmitting back the last reply (what rfc recommends). Practically, t_precheck_trans() stores the callid/from-tag/cseq/via-branch in a shared memory structure and checks if another process has the same values. It can be the case of a match, but the other process can be ahead with processing and the transaction was created for that request. I considered of doing t_check_trans() from inside t_precheck_trans(), but then I thought it gives more flexibility via config. t_precheck_trans() should be very fast, these structures are indexed by call id in a hash table, only when a child handles a request with request_route. If you just want to drop the retransmission, you can skip t_check_trans() inside the if. Cheers, Daniel -- Daniel-Constantin Mierla http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda Next Kamailio Advanced Trainings 2014 - http://www.asipto.com Sep 22-25, Berlin, Germany ::: Oct 15-17, San Francisco, USA