[Linuxsampler-devel] multi threading (was: GSt3 is out - does not support multiple)

[Christian S. <sch...@so...>]

Es geschah am Sonntag, 5. September 2004 07:59 als St=E9phane LETZ schrieb:
> But this solution requite LS to implement its own thread management
> code? I mean LS would create supplementary threads by itself and the
> Jack callback would have to wait for  the internal thread to finish?

No the JACK client thread would not wait. If not all jobs are done yet, tha=
n=20
it would pick up a free job by itself instead of just waiting for the other=
=20
threads to finish.

> I think all this thread management can be done by Jack itself. After
> having made this proposition of 2 Jack clients, I think now that a
> model with only one *single* Jack client with several Audio callback
> would be better.
> Basically the idea would be to extend Jack API to be able to add/remove
> several Audio callbacks. Then each thread does its jobs the way you
> describe, and the Jack client wait for  the 2 threads to finish. The
> difference is that the  thread management (setting the correct
> parameter for the real-time for example)  is done by Jack which is
> better.

Sure, if you just use the JACK driver then you'll be fine. But there will b=
e=20
many other audio drivers for LS and which of them support multi threading o=
n=20
their side? So nothing against the multi threading approach on JACKs side,=
=20
but we need a general, driver independent solution one day anyway.

CU
Christian