[asterisk-dev] [Code Review] 4425: Create function to work around reference leaks caused by shutdown with pending scheduled events

[Corey Farrell]

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Review request for Asterisk Developers.


Bugs: ASTERISK-24451
    https://issues.asterisk.org/jira/browse/ASTERISK-24451


Repository: Asterisk


Description
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When an event is scheduled, it often includes data with a reference bump for the scheduler.  If the scheduler context needs to be destroyed before all events have run, references are leaked.

This change adds a procedure to run all events that were scheduled for a specific callback, but haven't run yet.  chan_iax2 is modified to use this new procedure to run all pending peercnt_remove_cb and replace_callno events.

In the long run I think the scheduler will need to be ao2 aware, but that's not feasible for existing releases.


Diffs
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  /branches/11/main/sched.c 431733 
  /branches/11/include/asterisk/sched.h 431733 
  /branches/11/channels/chan_iax2.c 431733 

Diff: https://reviewboard.asterisk.org/r/4425/diff/


Testing
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Ran a bunch of tests that were leaking references: tests/apps/directed_pickup/pickup_chan, tests/callparking, tests/channels/iax2/acl_call, tests/channels/iax2/basic-call, tests/feature_attended_transfer, tests/feature_blonde_transfer

Only tests/callparking still has 1 leaked reference (it was more).


Thanks,

Corey Farrell

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