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Adds a couple of TODOs and some further documentation.

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Thomas Harte 2021-04-04 00:25:22 -04:00
parent 77b241af4f
commit 417ece2386
1 changed files with 17 additions and 2 deletions
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19
ClockReceiver/JustInTime.hpp
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@ -29,15 +29,30 @@
If the held object is a subclass of ClockingHint::Source, this template will register as an
observer and potentially stop clocking or stop delaying clocking until just-in-time references
as directed.
TODO: can TargetTimeScale be inferred from the argument type of T::run_for?
TODO: incorporate and codify AsyncJustInTimeActor.
*/
template <class T, int multiplier = 1, int divider = 1, class LocalTimeScale = HalfCycles, class TargetTimeScale = LocalTimeScale> class JustInTimeActor:
public ClockingHint::Observer {
private:
/*!
A std::unique_ptr deleter which causes an update_sequence_point to occur on the actor supplied
to it at construction if it implements get_next_sequence_point(). Otherwise destruction is a no-op.
**Does not delete the object.**
This is used by the -> operators below, which provide a unique pointer to the enclosed object and
update their sequence points upon its destruction — i.e. after the caller has made whatever call
or calls as were relevant to the enclosed object.
*/
class SequencePointAwareDeleter {
public:
explicit SequencePointAwareDeleter(JustInTimeActor<T, multiplier, divider, LocalTimeScale, TargetTimeScale> *actor) : actor_(actor) {}
explicit SequencePointAwareDeleter(JustInTimeActor<T, multiplier, divider, LocalTimeScale, TargetTimeScale> *actor) noexcept
: actor_(actor) {}
void operator ()(const T *const) const {
forceinline void operator ()(const T *const) const {
if constexpr (has_sequence_points<T>::value) {
actor_->update_sequence_point();
}