[asterisk-dev] [Code Review] fix using external MP3 player with res_timing_dahdi being used as timer causing MOH stream to stop

[elguero]

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/trunk/res/res_musiconhold.c
<https://reviewboard.asterisk.org/r/1578/#comment9210>

    I need to make sure I am understanding the suggestion.
    
    When we move the removal of the mohmembers to the beginning of the destructor, we get a lock first.  We then keep the lock; never call ao2_unlock?
    
    When I do this, I am getting the following error on the console for each moh class:
    
    ERROR[11769]: lock.c:136 __ast_pthread_mutex_destroy: astobj2.c line 270 (internal_ao2_ref): Error destroying mutex &obj->priv_data.lock: Device or resource busy
    
    Am I missing something?



/trunk/res/res_musiconhold.c
<https://reviewboard.asterisk.org/r/1578/#comment9208>

    Thanks for helping to clarify.  I was thinking about it the wrong way at the time.  Silly me... what you have said is what I was trying to accomplish but did it the wrong way.


- elguero


On Nov. 14, 2011, 11:02 a.m., elguero wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviewboard.asterisk.org/r/1578/
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> 
> (Updated Nov. 14, 2011, 11:02 a.m.)
> 
> 
> Review request for Asterisk Developers.
> 
> 
> Summary
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> 
> The attached patch does the following:
> 
> - Changes the load priority so that this module is loaded after the timing interfaces are.
> 
> At times, res_musichold.so would work with an external mp3 player.  Through debugging, I noticed that res_timing_pthread was being used at first.  If I only loaded res_timing_dahdi, then the external mp3 stream would start and then pause causing nothing to be heard on the channel. So, if res_timing_pthread was present at start, upon reload, since res_timing_dahdi takes priority as a timer, the timing changed to this timing interface and would just sit there, hence the need for the following change.
> 
> - Adds the POLLPRI event for ast_poll, otherwise ast_poll just sits there waiting when the timer being used is res_timing_dahdi.so
> 
> - Attempt to cleanup a few items
> 
> 
> This addresses bug ASTERISK-17474.
>     https://issues.asterisk.org/jira/browse/ASTERISK-17474
> 
> 
> Diffs
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> 
>   /trunk/res/res_musiconhold.c 344329 
> 
> Diff: https://reviewboard.asterisk.org/r/1578/diff
> 
> 
> Testing
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> Local box running CentOS 5.7 and dahdi-trunk.
> 
> On JIRA, tested by:
> Thomas Arimont - 1.8.7
> Luke H - 1.8.8-rc3, CentOS 5.5 (32bit), DAHDI 2.5.0.2
> 
> 
> Thanks,
> 
> elguero
> 
>

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