Trying to understand Pidgin from a developer's perspective

[Constantine Kharlamov]

On 26.05.2017 16:06, Abhishek Ranjan wrote:
> Hi,
> 
> I have just started using Pidgin to build a instant messaging system along with ejabberd. I have few questions regarding Pidgin that I wanted to be sure about :
> 
> 1) Is pidgin a open source?
> 
> as I have found the source code at this link https://github.com/tieto/pidgin
> 
> and I wanted to know that whether it is a correct repository for downloading pidgin's source code and is it open source?
> 
> 2) what are the prerequisites for understanding the source code of Pidgin.
> 
> 3) If it is open source what are the process of adding/editing code and use it as a application
> 
> 4) I was reading about the jabber's message.c file of Pidgin inside the libpurple folder on the above mentioned github link and I found the repetitive use of functions like g_warn_if_fail(), g_object_new(), g_return_val_if_fail(), g_hash_table_insert(), g_free() etc and the fact that all these functions are starting from g_ makes me think that they all have their implementation at the same place. 
> 
> Is it true?
> 
> If it is then where exactly are these functions written and why are all of them preceded by g_ ?

Btw, those functions are from GObject library, though I can't elaborate much on this because I never worked with it either. "g_" prefix stands, I think, for "Gnome".

> 
> Please if someone can answer these questions it would be very helpful to understand Pidgin.
> 
> Best Regards,
> 
> Abhishek Ranjan 
> 
> 
> 
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