Re: [Qemu-devel] Linux SIGIO handling changes

[Avi Kivity]

Anthony Liguori wrote:
> > Even with a separate iothread one needs the signals, as there is no 
> > other race-free way to poll for both aio completions and fd readiness.
>
> Unless you emulate signalfd() using a thread.  FWIW, I've been 
> thinking of implementing something similar to posix-aio (using a 
> thread-pool for AIO) for QEMU to get a bit more control for this sort 
> of thing.

Yes, of course.  It's still a separate thread, but as it's hidden from 
the main logic, that's no problem.

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