iterators+multithreading on win32

James O. houndeyex at
Sat Mar 5 19:21:21 CET 2011

Correct me if I'm wrong, but since hard drives can't read from two places at
once are speed increases actually realized from trying to multithread reads
with TagLib?

2011/3/5 Lukáš Lalinský <lalinsky at>

> On Sat, Mar 5, 2011 at 6:00 PM, Stephen F. Booth <me at> wrote:
> > I've also run into crashes like this in the past, when I tried to realize
> > speed increases by parsing several files simultaneously in separate
> threads.
> >  It seems that if atomic increment/decrement were added to RefCounter, as
> > long as a single file wasn't shared across threads then STL thread safety
> > wouldn't be an issue.  I'm not sure which statics could affect this, as I
> > haven't looked through the code in a while.  Is thread safety (or some
> level
> > of it) something planned for a future release?
> I don't think thread-safe TagLib is a particularly good idea. It would
> cause too many speed penalties for no good reason. I definitely want
> to be able to call different instances of TagLib classes from
> different threads though. I believe that fixing the RefCounter should
> be the only thing that is needed. The other static instances are
> read-only, as far as I remember.
> Lukas
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