[asterisk-bugs] [JIRA] (ASTERISK-27870) app_confbridge: Conference bridge and announcer channels are not removed if conference is ended as soon as it starts

[Joshua Colp (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-27870?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Work on ASTERISK-27870 started by Robert Mordec.

> app_confbridge: Conference bridge and announcer channels are not removed if conference is ended as soon as it starts
> --------------------------------------------------------------------------------------------------------------------
>
>                 Key: ASTERISK-27870
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27870
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Applications/app_confbridge
>    Affects Versions: 13.21.0
>            Reporter: Robert Mordec
>            Assignee: Robert Mordec
>
> If a conference is ended very quickly after it was created, ie. first user immediatlely hangs up, conference bridge and announcer channels are not removed. You can list them using _bridge show all_ and _core show channels_. Repeating this process (calling conference and hanging up quickly), creates new bridge and announcers.
> When conference is created, *push_announcer()* function is added to playback queue task processor and conference object reference is bumped. The issue arises when conference is ended while _push_announcer()_ function is still going. In that case _ao2_cleanup(conference)_ at the end of _push_announcer()_ will call the destructor function - *destroy_conference_bridge()*.
> The _destroy_conference_bridge()_ function will then add _hangup_playback_ task to playback queue and will wait for it to end. Since it is already a current task from playback queue it will wait forever.



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