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This is an automatically generated e-mail. To reply, visit:
https://reviewboard.asterisk.org/r/4389/
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(Updated Jan. 29, 2015, 7:24 p.m.)


Review request for Asterisk Developers.


Changes
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John added one more change.

In res_pjsip_refer, some ordering was modified to avoid reading from a 
refer_progress_notification after it had been freed. This was because the 
queued task could sometimes run and complete before the check of the 
notification state.


Bugs: ASTERISK-24736
    https://issues.asterisk.org/jira/browse/ASTERISK-24736


Repository: Asterisk


Description
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John Hardin of Digium did some investigation into memory leaks he was seeing 
and created a set of patches that fixes them. I've already given these patches 
a look and have made a few small adjustments to them where necessary for coding 
guidelines reasons. Most of the leak fixes are pretty straightforward, but one 
of these bears a bit of explanation:

Prior to Asterisk 12, originating calls with channel variables required that 
you transfer ownership of the created ast_variables structure away when calling 
ast_pbx_outgoing_exten() or ast_pbx_outgoing_app(). This was presumably because 
these functions could spawn threads that required these variables to not be 
freed yet. However, in Asterisk 12, ast_pbx_outgoing_exten() and 
ast_pbx_outgoing_app() were rewritten to not use the variables in the spawned 
threads. However, we also stopped actually destroying the variables there, too. 
So with this patch, responsibility for freeing the variables lies with the 
original creator of the variables.


Diffs (updated)
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  /branches/13/res/res_pjsip_refer.c 431302 
  /branches/13/pbx/pbx_spool.c 431302 
  /branches/13/main/xmldoc.c 431302 
  /branches/13/main/stasis_channels.c 431302 
  /branches/13/main/pbx.c 431302 
  /branches/13/main/manager.c 431302 
  /branches/13/main/bridge_after.c 431302 
  /branches/13/channels/chan_pjsip.c 431302 

Diff: https://reviewboard.asterisk.org/r/4389/diff/


Testing
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John Hardin's testing with valgrind has shown that the memory leaks it had been 
reported are no longer present.


Thanks,

Mark Michelson

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