Module: sip-router Branch: master Commit: 89bfe93c18d4ec77ff8c1819d365bda2a85613fe URL: http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=89bfe93… Author: Andrei Pelinescu-Onciul <andrei(a)iptel.org> Committer: Andrei Pelinescu-Onciul <andrei(a)iptel.org> Date: Fri Apr 24 10:52:46 2009 +0200 tm: hooks comments update - updated description for TMCB_RESPONSE_OUT and TMCB_LOCAL_RESPONSE_OUT. --- modules/tm/t_hooks.h | 34 ++++++++++++++++++++++++---------- 1 files changed, 24 insertions(+), 10 deletions(-) diff --git a/modules/tm/t_hooks.h b/modules/tm/t_hooks.h index b396737..de20c51 100644 --- a/modules/tm/t_hooks.h +++ b/modules/tm/t_hooks.h @@ -167,16 +167,27 @@ struct cell; * distinguish between the two, one would need to look at the method in * Cseq (look at t_reply.c:1630 (reply_received()) for an example). * - * TMCB_RESPONSE_OUT -- a final reply was sent out (either local - * or proxied) -- there is nothing more you can change from - * the callback, it is good for accounting-like uses. No lock is held. - * Known BUGS: it's called also for provisional replies for relayed replies. - * For local replies it's called only for the final reply. - * - * Note: the message passed to callback may also have + * TMCB_RESPONSE_OUT -- a final or provisional reply was sent out + * successfully (either a local reply or a proxied one). + * For final replies is called only for the first one (it's not called + * for retransmissions). + * For non-local replies (proxied) is called also for provisional responses + * (NOTE: this might change and in the future it might be called only + * for final replies --andrei). + * For local replies is called _only_ for the final reply. + * There is nothing more you can change from the callback, it is good for + * accounting-like uses. No lock is held. + * Known oddities: it's called for provisional replies for relayed replies, + * but not for local responses (see NOTE above). + * Note: if the send fails or via cannot be resolved, this callback is + * _not_ called. + * Note: local reply means locally generated reply (via t_reply() & friends) + * and not local transaction. + * + * Note: the message passed to the callback may also have * value FAKED_REPLY (like other reply callbacks) which - * indicates a pseudo_reply caused by a timer. Check for - * this value before deferring -- you will cause a segfault + * indicates a local reply caused by a timer, calling t_reply() a.s.o. +* Check for this value before deferring -- you will cause a segfault * otherwise. Check for t->uas.request validity too if you * need it ... locally initiated UAC transactions set it to 0. * @@ -249,9 +260,12 @@ struct cell; * transaction arrived. Message may be FAKED_REPLY. Can be called multiple * times, no lock is held. * - * TMCB_LOCAL_REPONSE_OUT -- provisional reply for localy initiated + * TMCB_LOCAL_RESPONSE_OUT -- provisional reply for localy initiated * transaction. The message may be a FAKED_REPLY and the callback might be * called multiple time quasi-simultaneously. No lock is held. + * Note: depends on tm.pass_provisional_replies. + * Note: the name is very unfortunate and it will probably be changed + * (e.g. TMCB_LOCAL_PROVISIONAL). * * TMCB_NEG_ACK_IN -- an ACK to a negative reply was received, thus ending * the transaction (this happens only when the final reply sent by tm is