Currently, there is no code using WTF::Function in single-threaded code. It seems WTF::Function is intended to be used for cross thread communication. One evidence is that FunctionImplBase is thread-safe ref-counted, which is not super efficient for single threaded use cases.
If we have no plan to use WTF::Function for single threaded code, why don't we rename WTF::Function to WTF::CrossThreadFunction and add more features such as cross thread copying there? Regards, Kwang Yul Seo On Mon, Aug 13, 2012 at 9:26 PM, Kwonjin Jeong <g...@company100.net> wrote: > Hi, WebKit. > > There are several implementations of threads, tasks and cross thread > communication. e.g. FileThread, DatabaseThread and StorageThread perform > blocking IO asynchronously and invoke callbacks using > ScriptExecutionContext. Each of these implementation is pretty similar, but > there is no code sharing at all. > > So, my team at Company 100 is trying to refactor cross thread > communication. We wrote an API proposal and modified some thread code to > use our new API. > > As the first step, we added two new abstractions for cross thread > communcation: > > 1) TaskThread is our new abstraction for the task thread. FileThread, > DatabaseThread and other task threads reuse the code by inheriting from > TaskThread. > > 2) We also added CrossThreadFunction. It's used to pass a task to the task > thread and invoke callbacks. CrossThreadFunction is similar to > WTF::Function but it has some additional features. e.g., cross-thread > parameter copying and ref counting. > > Please refer to the following bug for details: > > https://bugs.webkit.org/show_bug.cgi?id=92365 > > We welcome feedbacks on our work. > > Thanks. > > -- > ==================== > Kwonjin Jeong > Computer Scientist > Company 100, Inc. > Phone: +82-10-9528-2581 > ==================== > > _______________________________________________ > webkit-dev mailing list > webkit-dev@lists.webkit.org > http://lists.webkit.org/mailman/listinfo/webkit-dev > >
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