[PATCH 3/4] Fix: Nokia BTS does not send RELease CONFirm message for local end release

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Andreas Eversberg andreas at eversberg.eu
Fri Dec 6 10:04:49 UTC 2013


>
> * You directly call rsl_handle_release and can get ahead of itself. This
>   is a problem for:
>
>
> 	if (deact_sacch == SACCH_DEACTIVATE)
>         	rsl_deact_sacch(lchan);
>         rsl_release_sapis_from(lchan, 0, RSL_REL_LOCAL_END);
>                         
>         /* TODO: start T3109 now. */
>         rsl_lchan_set_state(lchan, LCHAN_S_REL_ERR);
>
> So with your change rsl_handle_release will be called when lchan->state
> is not set to LCHAN_S_REL_ERR yet.
>   
you are right. i have no solution for this problem yet. at
osmocombb/mobile i use queues to solve these kind of problems. whenever
i want to handle something after osmo_select_main() was processed, i
write into a specific queue. the main loop will call all dequeue
functions in a loop, until all queues are empty and then continue with
next osmo_select_main() call. one solution for handling the missing
RELease CONFirm from BTS could be a timer with 0 duration. the timer
will be handled right after the process you showed above is done. this
timer could also have a duration of 1 second. if the BTS acutally sends
a confirm, the timer could be stopped. this way it would also work with
BTS firmwares that actually send a confirm.




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