[linux-audio-dev] realtimeness: pthread_cond_signal vs. pipe write

[Florian Weimer]

* Fons Adriaensen:

> You can build such a thing on top of condition variables - that
> is what they exists for - to let a thread wait one any condition
> you may want, no matter how complicated. 

But don't you need an additional context switch, from the event
listener thread to the actual processing thread?  You could use a
leader/followers scheme to deal with this, I think, but it's quite
complicated.  Doing it in the kernel would probably reduce overall
complexity.