On 20 February 2013 22:45, Sze Howe Koh <[email protected]> wrote: > Hi all, > > Some time ago there was some talk about improving Qt's multithreading > API. I'm summarizing them here to stop them from fading into > obscurity, and to see if there's any interest in following them up. > > Here are the tasks mentioned: > - Replace/Rewrite QtConcurrent [2] > - Create/Find a good API to replace QtConcurrent::run() for "one-shot" tasks > [1] > - Find a third-party solution for high-level multithreading [2] > - Find more uses for QFuture, outside of QtConcurrent [3] > - Influence C++1y by creating a nice multithreading API [4] > > Some suggestions were raised: > - Put a Qt-ish wrapper around TBB [1] > - Integrate ThreadWeaver back into Qt? [2] > > Separately, someone was experimenting with ways to spawn a QObject in > a secondary thread, without first constructing it in the current > thread [5] > > > Do you think any of these avenues are worth pursuing? > > I've had a quick look at TBB vs. ThreadWeaver. The latter specializes > in task-oriented programming, while TBB is a more swiss-army-knife > toolkit, which includes container-based operations similar to > QtConcurrent. So, if we're to integrate 3rd-party option into Qt, TBB > would be more worth it (although it'd involve more work too)
Actually, I just realized that the open-source "flavour" of TBB is licensed under GPLv2 (http://threadingbuildingblocks.org/Licensing). Doesn't that mean that Qt TBB, if it were to become reality, can't be licensed under the LGPL? > Regards, > Sze-Howe > > [1] > http://lists.qt-project.org/pipermail/development/2012-November/007901.html > [2] > http://lists.qt-project.org/pipermail/development/2012-November/007921.html > [3] > http://lists.qt-project.org/pipermail/development/2012-November/007944.html > [4] > http://lists.qt-project.org/pipermail/development/2012-November/007933.html > [5] http://lists.qt-project.org/pipermail/interest/2013-January/005740.html _______________________________________________ Development mailing list [email protected] http://lists.qt-project.org/mailman/listinfo/development
