90 lines
2.6 KiB
C
90 lines
2.6 KiB
C
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#ifndef ALSK_ALSK_IMPL_CALLABLE_H
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#define ALSK_ALSK_IMPL_CALLABLE_H
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#include "../skeleton/utility.h"
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#include "../executor/executorstate.h"
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namespace alsk {
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template<typename Context, typename Executor>
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struct CallableState {
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Context context;
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exec::ExecutorState<Executor> executor;
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// out-of-class definition to silence -Winline
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~CallableState() noexcept;
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};
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template<typename Context, typename Executor>
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CallableState<Context, Executor>::~CallableState() noexcept {}
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template<typename> struct Callable;
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template<
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template<typename...> class Impl,
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template<typename...> class Skel, typename R, typename... Operands, typename... Tasks,
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typename Tag, typename Executor, typename State
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>
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struct Callable<Impl<Skel<R(Operands...), Tasks...>, Tag, Executor, State>>:
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Impl<Skel<R(Operands...), Tasks...>, Tag, Executor, State> {
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using Skeleton = Skel<R(Operands...), Tasks...>;
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using Implementation = Impl<Skeleton, Tag, Executor, State>;
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using ThisType = Callable<Implementation>;
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private:
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std::size_t _parTasksCount;
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public:
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State state;
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template<typename... Args, std::enable_if_t<sizeof...(Args) == 2>* = nullptr>
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constexpr Callable(Args&&... args):
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Implementation(std::forward<Args>(args)..., state),
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_parTasksCount{0}
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{}
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// out-of-class definition to silence -Winline
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~Callable() noexcept;
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constexpr decltype(auto) operator()(Operands... operands) {
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update();
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return Implementation::operator()(operands...);
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}
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template<typename F, typename T>
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constexpr decltype(auto) traverse(F&& function, T&& init) {
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return SkeletonTraversal<Skeleton>::execute(Implementation::skeleton, std::forward<F>(function), std::forward<T>(init));
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}
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static constexpr tmp::Depth parallelizableLevels() {
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return skeletonParallelHeight<Skeleton>;
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}
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std::size_t parallelTasksCount() const { return _parTasksCount; }
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constexpr void update() {
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auto traverser = [](std::size_t, auto&& skl, auto&&... values) {
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using Skl = decltype(skl);
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auto subpar = max(values...);
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skl.step = subpar;
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return SkeletonTraitsT<Skl>::parallelizability(std::forward<Skl>(skl)) * subpar;
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};
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_parTasksCount = traverse(traverser, 1ul);
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ThisType::executor.config(*this);
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state.context.setup(ThisType::executor.contextIdCount(static_cast<Implementation&>(*this), _parTasksCount));
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}
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};
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template<
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template<typename...> class Impl,
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template<typename...> class Skel, typename R, typename... Operands, typename... Tasks,
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typename Tag, typename Executor, typename State
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>
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Callable<Impl<Skel<R(Operands...), Tasks...>, Tag, Executor, State>>::~Callable() noexcept {}
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}
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#endif
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