[Freeswitch-users] Executing multiple applications in parallel

JP jaykris at gmail.com
Sat Jan 26 03:32:50 MSK 2013


MC,
Thanks for the info. Unfortunately outbound event socket application is not
an option for me right now. I was wondering if the following "ideas" can be
of any use to me( I know I am trying clutch at straws, but hope is eternal
:))
1. Use "bgapi". Although on the wiki I only see this used with "originate".
2. Can I use a conference to park the caller there while playing music on
another call leg of the conference. Meanwhile can I execute the Lua script
:))
3. Can I launch another Lua script from my original one asynchronously?
4. Can I have a start up Lua script running in the background listening for
some custom events and I can have the main caller thread generate the
custom event and then start playing long music file. Once the background
Lua script is done with the data dip, it can just break the music on the
other channel.

That's it from me. Someone help me from sinking... please.

Thanks,
-JP


On Fri, Jan 25, 2013 at 4:10 PM, Michael Collins <msc at freeswitch.org> wrote:

> The problem you're running into is that you are trying to do two different
> things inside of the thread that is controlling the call flow. Playing
> sound files and running Lua scripts are synchronous in this context. This
> seems more suited for an outbound event socket application. Using the event
> socket you can control the call while doing other things.
>
> Just curious - does anyone have an ESL example of this kind of thing? The
> wiki could definitely use this kind of example as it is quite useful. I'll
> look around and see if I can find anything.
>
> -MC
>
>
> On Fri, Jan 25, 2013 at 3:00 PM, JP <jaykris at gmail.com> wrote:
>
>> Avi,
>> Thanks for the response. Unfortunately that did not work. This is what I
>> did
>>
>>
>>     <extension name="MyExtension">
>>       <condition field="destination_number" expression="9005">
>>             <action application="answer"/>
>>             <action application="play_and_get_digits" data="4 16 3 7000 #
>> phrase:MyPrompt phrase:My_invalid_entry case_number \d+" />
>>             <action application="playback" data="phrase:wait_msg" />
>>             <action application="sched_broadcast" data="+0
>> playback::/tmp/WPJ_MUSIC_QUEUE_4.wav"/>
>>             <action application="lua" data="get_customer_info.lua
>> ${case_number}" />
>>        </condition>
>>     </extension>
>>
>> The music only plays after the Lua script exits. I played around with the
>> timer value, but that did not help either. Any other ideas?
>>
>> Thanks
>> JP
>>
>>
>> On Fri, Jan 25, 2013 at 1:22 AM, Avi Marcus <avi at avimarcus.net> wrote:
>>
>>> ESL gives you more control, especially to execute things in parallel.
>>> If you want to do it within FS, that's a little more complicated, since
>>> most things are sequential.
>>>
>>> However, if you use the async APIs, then I think it could work:
>>> 1) sched_broadcast<http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_sched_broadcast> --
>>> schedule the playback of your file on the UUID of the channel, for +0,
>>> meaning now.
>>> 2) run your lua script
>>> 3) Then stop (break) the playback on that uuid: break<http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_break>
>>> 4) Continue with your execution.
>>>
>>> Please wikify your results and let us know how that works out!
>>> -Avi
>>>
>>>  On Fri, Jan 25, 2013 at 3:34 AM, JP <jaykris at gmail.com> wrote:
>>>
>>>>  I want to do the following...
>>>>
>>>> 1. Play a long music file from a dialplan.
>>>> 2. While the music is playing, I want to launch a Lua script to do some
>>>> data dip.
>>>> 3. Once the data is fetched and Lua exits, I want to interrupt the
>>>> music and continue in the dialplan
>>>>
>>>> How do I do this. Any sample code or pointers would be greatly
>>>> appreciated.
>>>>
>>>> Thanks
>>>>
>>>>
>>>> _________________________________________________________________________
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>>>
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>>
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>>
>> 
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>
>
> --
> Michael S Collins
> Twitter: @mercutioviz
> http://www.FreeSWITCH.org
> http://www.ClueCon.com
> http://www.OSTAG.org
>
>
> _________________________________________________________________________
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> http://www.freeswitchsolutions.com
>
> 
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