[alsa-devel] Races in alsa-lib with threads

[Takashi Iwai]

At Tue, 13 Nov 2012 02:14:08 -0500,
Trent Piepho wrote:
> 
> On Tue, Nov 13, 2012 at 1:32 AM, Takashi Iwai <tiwai at suse.de> wrote:
> > At Mon, 12 Nov 2012 19:40:42 +0000 (UTC),
> > Rob Krakora wrote:
> >> Would you be able to point me the the ALSA documentation that indicates the
> >> stipulations on handle usage using multiple threads?  I cannot find it.
> >
> > Think other way round:
> > The fact that it isn't documented means it's not safe to use in that
> > way :)
> 
> 
> The introduction on the alsa-project home page says, "SMP and
> thread-safe design. "  Some people might misunderstand what
> thread-safe means.  Maybe some clarification could be added.
> "Different streams are SMP and thread-safe (calls for the same stream
> must be serialized)."

Yeah this should be corrected.  SMP things are just about the kernel
side at that time.

It's a Wiki, feel free to correct / improve the text.


Takashi