ALSA implementation

[Marcus Meissner]

On Wed, Sep 20, 2006 at 05:54:06PM +0200, Tomas Carnecky wrote:
> Jan Zerebecki wrote:
> >As explained in the mail refrenced above the main problem is that
> >in wine the alsa callback signal (that we currently use) won't
> >work properly without special care, but the fd based method (for
> >example with select) should work as expected. 
> 
> Why won't it work without special care? Is it because of the SIGIO 
> signal? Wouldn't the fd-method require a separate thread?

Yes, we cannot execute code in signals, namely critical sections
cannot be entered recursively from a signal handler.

Blocking the signal was not accepted by Alexandre, so we would need
to use something else ;)

Ciao, Marcus