[asterisk-dev] [Code Review] 2965: stasis: Ensure channels are departed from bridges

[David Lee]

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Ship it!



/branches/12/res/stasis/control.c
<https://reviewboard.asterisk.org/r/2965/#comment19313>

    This comment is now a bit stale.


- David Lee


On Oct. 30, 2013, 8:57 a.m., Joshua Colp wrote:
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> (Updated Oct. 30, 2013, 8:57 a.m.)
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> Review request for Asterisk Developers.
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> Bugs: ASTERISK-22703
>     https://issues.asterisk.org/jira/browse/ASTERISK-22703
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> Repository: Asterisk
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> Description
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> Currently within Stasis there is no guarantee that a channel that leaves a bridge will have ast_bridge_depart called on it. The attached change changes this by having a command queued on the channel that explicitly departs it when it leaves a bridge. This works for outside manipulation, bridge deletion, hangup, etc.
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> This fixes an issue that the referenced bug exposed. When hanging up while in a bridge no synchronization occurred between the bridge and stasis - causing both to act on a channel at the same time. Depending on how fast the stasis side executed it was possible for the channel itself to be freed and the bridge reference this freed memory.
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> Diffs
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>   /branches/12/res/stasis/control.c 402263 
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> Diff: https://reviewboard.asterisk.org/r/2965/diff/
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> Testing
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> Deleted a bridge with a channel in it, confirmed with the patch that departure occurs and the bridge is destroyed.
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> Hungup while in a bridge, confirmed with the patch that departure occurs.
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> Thanks,
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> Joshua Colp
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