- use std::make_shared instead of QSharedPointer
- two memory allocations saved
- co-locate semaphore and HRESULT object in a single State object
- one more memory allocation saved
- pass the shared_ptr<State> by value into the runnable
- two more memory allocations saved
Not only is the new code much faster, it's also much more readable.
Also use QSemaphoreReleaser, just in case the delegate should throw.
Change-Id: Ib99b9da86984d440d10b72e3071aa88099e24a1f
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
236d4637b2