[Freeswitch-users] Time to start understanding the FreeSWITCH codebase

[jay binks]

Start to learn the modules you use....  especially the smaller ones.

Im my systems, I used Enum quite a bit so I started digging into
mod_enum years ago
followed by mod_limit ( deprecated now ? ) and mod_sofia etc ...
these were both enough to get me understanding the FS Side of things,
I then started digging into ESL and FS core.

I dont proclaim to be a guru at FS internals, but Ive had my fair
share of patches accepted ( and rejected :P )

Jay


On 18 February 2013 15:11, Michael Collins <msc at freeswitch.org> wrote:
> >From personal experience I can say that it makes sense to start at the
> outer levels and work your way in. A gentle way to get into what the source
> code does is to look at the source code for API commands or dialplan
> applications with which you are very familiar or that have very simple
> functions.
>
> I would start with mod_commands.c and look at simple commands like "version"
> and "banner". Once you get the hang of those then try digging a little
> deeper, like with the "show" API. That API is a great example of how the FS
> devs handle argument parsing and use the occasional "really large" case
> block.
>
> If you would rather start with the dialplan stuff then check out
> mod_dptools.c. Look at really simple apps like "log". You'll see lots of
> references to the "session" which you MUST learn about if you want to do
> anything with a live call. One thing you'll see is that the functions in the
> "outer" layers will make calls to "core" functions. As homework I recommend
> you look in mod_dptools.c for the definition of the "playback" app. Hint: to
> get the whole picture you'll need to also look in switch_ivr_play_say.c. ;)
>
> Have fun and don't be afraid to ask questions here or in the IRC channel.
>
> -MC
>
>
> On Sun, Feb 17, 2013 at 4:42 PM, Steven Ayre <steveayre at gmail.com> wrote:
>>
>> Use the source, Luke.
>>
>> Digging around in the source is one way to explore how FS works. Some is
>> easier to understand than others. Threading is heavily used so understanding
>> mutexes etc is useful.
>>
>> I'd highly recommend that you read this site though:
>> http://docs.freeswitch.org/
>>
>> That documents the core API. A lot is based on APR, plus some extra stuff
>> like the module interfaces.
>>
>> Steve
>>
>>
>>
>>
>> On 18 Feb 2013, at 00:00, Brian Foster <bdfoster at endigotech.com> wrote:
>>
>> I think I've come to a stage in my life where I'm more interested than
>> ever in learning the internals of FreeSWITCH and start contributing code to
>> it. I've been following the project for a few years, but I've never touched
>> the code. It's time to change that.
>>
>> Is there a place on the wiki someone can point me to so I can start
>> understanding the FS core? I'm talking fairly basic, beginner level stuff.
>>
>> Sent from my iPhone
>> _________________________________________________________________________
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>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
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>>
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>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> 
>> 
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://wiki.freeswitch.org
>> http://www.cluecon.com
>>
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>
>
>
> --
> Michael S Collins
> Twitter: @mercutioviz
> http://www.FreeSWITCH.org
> http://www.ClueCon.com
> http://www.OSTAG.org
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
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>



--
Sincerely

Jay