This class is a temporary hack to enable transition to an API based on std::chrono for the Qt event dispatcher. In Qt 7, it will be merged with QAbstractEventDispatcher, replacing the pure virtuals there with the ones defined here. The new API differs from V1 in the following ways: - uses Qt::TimerId instead of int to identify timer IDs, so we can't accidentally confuse them with something else - uses Duration (nanoseconds) to specify the interval, instead of a mix of int and qint64 - add the missing const to remainingTime() - rename registeredTimers() to timersForObject() (I'd have kept the original name but we can't overload the name if the parameters are exactly the same; we could have used QT6_DECL_NEW_OVERLOAD_TAIL, but I think the new name is actually better) Because the old API was mixing int and qint64, we didn't officially support any timer for more than 2^31 ms (~24.85 days). This should extend the valid range to 292 years once the dispatchers are ported over. Change-Id: I83dda2d36c904517b3c0fffd17b3a7e0afef4b59 Reviewed-by: Edward Welbourne <edward.welbourne@qt.io> Reviewed-by: Ahmad Samir <a.samirh78@gmail.com>