[linux-audio-dev] Oss & threading -- is it possible

Juan Linietsky coding at reduz.com.ar
Sat Oct 11 12:49:00 UTC 2003


On Friday 10 October 2003 11:31, hexe_2003 at directbox.com wrote:
> Hello !
>
> I've read somewhere that it is not possible that threads write different
> data to /dev/dsp. But how does Cheesetracker, for example, make it then?
>

In cheesetracker, only one thread writes to the DSP and manages audio
.. the main one is for the GUI. Intercomunication between both is done
via shared memory, unless on destructive operations, where locking is 
performed. (lock on the gui, and trylock on the audio thread). This is to 
ensure that jack will not kill the app :)

Juan Linietsky





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