[pulseaudio-discuss] I want to know about how to communication one module with another module

[Zhen Fu]

Hi rong,

It is very useful message for me. I am doing a audio server, so I refer the pulseaudio system.

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Best Regards,
Zhen Fu

-----Original Message-----
From: rong deng [mailto:dzrongg at gmail.com] 
Sent: Wednesday, July 25, 2012 11:21 PM
To: General PulseAudio Discussion
Cc: Zhen Fu
Subject: Re: [pulseaudio-discuss] I want to know about how to communication one module with another module

Hi Zhen,

2012/7/24 Zhen Fu <fuzh at marvell.com>:
> Hi all developer,
>
>
>
> I want to know about how to communication one module with another module. Is
> it use asyncmg? Thank you!

I'm not the expert here, but here's my two cents. :)

In theory, two modules should not communicate directly with each
other. For a module, the only thing it should care about is the core,
and it should communicate with the core, handling the messages from
the core etc. As you might know already, pulseaudio takes the thread
model, for most of the modules, they would reside in a separate
thread, e.g. ALSA. Communicating directly with two methods could be a
mess, and even worse, one module is totally unaware when the another
module is loaded or not.

So the current way, in my humble opinion, is to use the core as a
bridge to direct the communication between two modules.

That said, the intrinsic question is why you should do this at your
first place? :) Maybe there's a chance to skip this ugliness in your
design.

Thanks!