[asterisk-dev] [Code Review] 2447: res_parking: Rebuilding parking from the ground up to work with the new bridging model

rmudgett reviewboard at asterisk.org
Thu May 2 14:49:10 CDT 2013 


> On May 2, 2013, 7:33 p.m., Mark Michelson wrote:
> > /team/group/bridge_construction/res/parking/res_parking.h, lines 56-57
> > <https://reviewboard.asterisk.org/r/2447/diff/4/?file=36813#file36813line56>
> >
> >     I think this parking lot mode can be removed.
> >     
> >     If I understand correctly, the way a parking lot gets marked as disabled is if a parking lot existed in configuration, had users in it, and then got removed from configuration.
> >     
> >     At this point, the parking lot is disabled. Care has to be taken to ensure that users do not get parked to this lot, and each time a user is removed from a parking lot, a check gets made to see if the disabled lot can be removed from the container of parking lots. When the parking lot is disabled and finally becomes empty, the parking lot can be removed from the container and thus be destroyed.
> >     
> >     One thing I noticed, though, was that parked users have a reference to the lot they're parked in. Because of this, you can instead change the behavior so that when a parking lot is removed from configuration, the lot is removed from the container of parking lots immediately. Then, as users are removed from the lot, their references to the lot are removed. When the final user is removed from the lot, the final reference to the lot is removed, and the lot can die. And of course if there were no users in the lot when it was removed from configuration, then removing the lot from the container immediately results in the lot's destruction.
> >     
> >     With this construct, you don't have to worry about potentially parking a user in a disabled lot, and you don't have to manually perform any destruction checks when users exit the parking lot.
> >     
> >     Also, what does "Terminal Mode doest" mean?

Removing the parking lot immediately from the parking lots container is not going to work.  You need to find the parking lot name in the container to pickup a parked call.


- rmudgett


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On April 30, 2013, 6:44 p.m., jrose wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://reviewboard.asterisk.org/r/2447/
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> 
> (Updated April 30, 2013, 6:44 p.m.)
> 
> 
> Review request for Asterisk Developers, David Lee, kmoore, Matt Jordan, Mark Michelson, and rmudgett.
> 
> 
> Bugs: ASTERISK-21059, ASTERISK-21272 and ASTERISK-21353
>     https://issues.asterisk.org/jira/browse/ASTERISK-21059
>     https://issues.asterisk.org/jira/browse/ASTERISK-21272
>     https://issues.asterisk.org/jira/browse/ASTERISK-21353
> 
> 
> Repository: Asterisk
> 
> 
> Description
> -------
> 
> As a result of all the new bridging changes, certain applications such as parking, queues, confbridge, and a few others require significant reworking within Asterisk to make usable.
> Parking was less than salvagable, so I've rebuilt it from the ground up to use a lot of new stuff including config hooks, the new bridging architecture, stasis, and just generally to
> be an independent module with its own scope that doesn't get tangled into a giant morass within features.c
> 
> Parking configuration works somewhat differently now and extensions aren't necessarily automatically generated (it's optional and hasn't been implemented), but the intention with the final result is that if you were using parking before without too much additional dialplan manipulation, that should all just work once your parking lots are migrated to the new configuration file.
> 
> Currently supported:
> parking from the PBX with the Park application (all arguments are supported)
> parking within a call using the one touch parking feature
> parking within a call using DTMF blind transfers (attended transfers work, but it's basically just like they called the application itself).
> Picking up parked calls using the PBX
> Multiple parking lots
> All options available to parking lots are currently configurable. Some aren't currently doing anything, namely parkext and hints.
> 
> To do list:
> * Dialplan generation for parking lots with parkext (included 'Park' and 'ParkedCall' applications)
> * Dialplan generation for comebacktoorigin (park-dial extensions)
> * Hints
> * Implement 'Park' manager action
> * Dynamic parking lots and the default parking lot
> * Scraping the greasy remnants of parking out of features.c
> * CEL events
> * Unit tests and testsuite tests
> 
> 
> Diffs
> -----
> 
>   /team/group/bridge_construction/include/asterisk/parking.h PRE-CREATION 
>   /team/group/bridge_construction/main/bridging.c 387012 
>   /team/group/bridge_construction/main/bridging_roles.c 387012 
>   /team/group/bridge_construction/main/config_options.c 387012 
>   /team/group/bridge_construction/main/features.c 387012 
>   /team/group/bridge_construction/main/parking.c PRE-CREATION 
>   /team/group/bridge_construction/res/Makefile 387012 
>   /team/group/bridge_construction/res/parking/parking_applications.c PRE-CREATION 
>   /team/group/bridge_construction/include/asterisk/config_options.h 387012 
>   /team/group/bridge_construction/include/asterisk/bridging.h 387012 
>   /team/group/bridge_construction/configs/res_parking.conf.sample PRE-CREATION 
>   /team/group/bridge_construction/bridges/bridge_builtin_features.c 387012 
>   /team/group/bridge_construction/CHANGES 387012 
>   /team/group/bridge_construction/res/parking/parking_bridge.c PRE-CREATION 
>   /team/group/bridge_construction/res/parking/parking_bridge_features.c PRE-CREATION 
>   /team/group/bridge_construction/res/parking/parking_controller.c PRE-CREATION 
>   /team/group/bridge_construction/res/parking/parking_manager.c PRE-CREATION 
>   /team/group/bridge_construction/res/parking/parking_ui.c PRE-CREATION 
>   /team/group/bridge_construction/res/parking/res_parking.h PRE-CREATION 
>   /team/group/bridge_construction/res/res_parking.c PRE-CREATION 
> 
> Diff: https://reviewboard.asterisk.org/r/2447/diff/
> 
> 
> Testing
> -------
> 
> This is currently being tested as it's developed and breaks in minor ways frequently. Unit tests and testsuite tests are on the to do list.
> 
> 
> Thanks,
> 
> jrose
> 
>

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