On 05.06.2011 13:08, [email protected] wrote: > Hi, > > There is Qt Concurrent and QFuture. Those would benefit from some work. > > We have plans to support the C++0x lambda expressions, that might help to > keep the asynchronous code in-place.
Yes, lambda will help alot, especially if it could be used in connections and in the state-machine framework. Peter > > There is also the KJob API that is really great for some asynchronous > operations. > http://api.kde.org/4.x-api/kdelibs-apidocs/kdecore/html/classKJob.html > > ________________________________________ > Fra: [email protected] > [[email protected]] på vegne > av ext Peter Kümmel [[email protected]] > Sendt: 5. juni 2011 11:56 > Til: [email protected] > Emne: [Qt5-feedback] Better support for asynchronous code > > Very often it is needed to write asynchronous code > (eg. when networking). Qt provides all necessary > low level stuff: signal, slots, threads, > queued connections. > > But the code which implements the asynchronous behavior > is less readable than the code of a synchronous control > flow: Lot of small functions (the slots), several threads, > signals, connections. > > This way the risk is high to end up with a modern form of > "Spaghetti Code". In case of Qt I would call it the > "Signal Slot Massacre". (Could eventually be avoided by using > a state machine) > > What I like to see in Qt5 is better support to produce > readable asynchronous code. > > Maybe other languages (Erlang, Objective-C, Scala, ...) or > libraries (Grand Central Dispatch, Threading Building Blocks) > could inspire solutions which make Qt/C++ better prepared > for asynchronous program flows. > > Once I added a more comfortable syntax for message passing to QObjects: > http://lists.qt.nokia.com/pipermail/qt-interest/2009-September/012633.html > > But I think there are many other ways to improve Qt/C++ at this topic. > > Peter > > > _______________________________________________ > Qt5-feedback mailing list > [email protected] > http://lists.qt.nokia.com/mailman/listinfo/qt5-feedback > _______________________________________________ Qt5-feedback mailing list [email protected] http://lists.qt.nokia.com/mailman/listinfo/qt5-feedback
