Re: [LAD] Communicating between python UI and C++ engine for real time audio?

From: Iain Duncan <iainduncanlists@email-addr-hidden>
Date: Fri Nov 04 2011 - 19:54:47 EET

>> > While this is restrictive, in the way you mention, I think it's a
>> > welcome simplification
>> > ( compared to implementing a real-time-capable-linked-list + other
>> > rt-structures ),
>> > if your use-case doesn't require direct calls to the list (for any
>> > reason),
>> > then you could request insert/remove/update operations through the
>> > rt-ring-buffer.
>>
>> you can't perform insert/remove/update operations on a "normal" linked
>> list in an RT thread.
>
> Sorry, what do you need instead? ( trying hard to absorb all this.. )

either
>
> (1) a lock free data structure
> (2) perform the modifications on a copy in a non-RT context and
> then make the result
> available to the RT context (i.e. RCU)
>

Sounds like it will be worth learning about both. I gather the Ardour
source is a good example of RCU correct? Can anyone point me at
documentation or examples of a lock free data structure?

thanks
Iain

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Received on Fri Nov 4 20:15:02 2011

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