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diff --git a/Rx/v2/src/rxcpp/operators/rx-window.hpp b/Rx/v2/src/rxcpp/operators/rx-window.hpp
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-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
-
-#pragma once
-
-/*! \file rx-window.hpp
-
- \brief Return an observable that emits connected, non-overlapping windows, each containing at most count items from the source observable.
- If the skip parameter is set, return an observable that emits windows every skip items containing at most count items from the source observable.
-
- \param count the maximum size of each window before it should be completed
- \param skip how many items need to be skipped before starting a new window
-
- \return Observable that emits connected, non-overlapping windows, each containing at most count items from the source observable.
- If the skip parameter is set, return an Observable that emits windows every skip items containing at most count items from the source observable.
-
- \sample
- \snippet window.cpp window count+skip sample
- \snippet output.txt window count+skip sample
-
- \sample
- \snippet window.cpp window count sample
- \snippet output.txt window count sample
-*/
-
-#if !defined(RXCPP_OPERATORS_RX_WINDOW_HPP)
-#define RXCPP_OPERATORS_RX_WINDOW_HPP
-
-#include "../rx-includes.hpp"
-
-namespace rxcpp {
-
-namespace operators {
-
-namespace detail {
-
-template<class... AN>
-struct window_invalid_arguments {};
-
-template<class... AN>
-struct window_invalid : public rxo::operator_base<window_invalid_arguments<AN...>> {
- using type = observable<window_invalid_arguments<AN...>, window_invalid<AN...>>;
-};
-template<class... AN>
-using window_invalid_t = typename window_invalid<AN...>::type;
-
-template<class T>
-struct window
-{
- typedef rxu::decay_t<T> source_value_type;
- typedef observable<source_value_type> value_type;
-
- struct window_values
- {
- window_values(int c, int s)
- : count(c)
- , skip(s)
- {
- }
- int count;
- int skip;
- };
-
- window_values initial;
-
- window(int count, int skip)
- : initial(count, skip)
- {
- }
-
- template<class Subscriber>
- struct window_observer : public window_values
- {
- typedef window_observer<Subscriber> this_type;
- typedef rxu::decay_t<T> value_type;
- typedef rxu::decay_t<Subscriber> dest_type;
- typedef observer<T, this_type> observer_type;
- dest_type dest;
- mutable int cursor;
- mutable std::deque<rxcpp::subjects::subject<T>> subj;
-
- window_observer(dest_type d, window_values v)
- : window_values(v)
- , dest(std::move(d))
- , cursor(0)
- {
- subj.push_back(rxcpp::subjects::subject<T>());
- dest.on_next(subj[0].get_observable().as_dynamic());
- }
- void on_next(T v) const {
- for (auto s : subj) {
- s.get_subscriber().on_next(v);
- }
-
- int c = cursor - this->count + 1;
- if (c >= 0 && c % this->skip == 0) {
- subj[0].get_subscriber().on_completed();
- subj.pop_front();
- }
-
- if (++cursor % this->skip == 0) {
- subj.push_back(rxcpp::subjects::subject<T>());
- dest.on_next(subj[subj.size() - 1].get_observable().as_dynamic());
- }
- }
-
- void on_error(rxu::error_ptr e) const {
- for (auto s : subj) {
- s.get_subscriber().on_error(e);
- }
- dest.on_error(e);
- }
-
- void on_completed() const {
- for (auto s : subj) {
- s.get_subscriber().on_completed();
- }
- dest.on_completed();
- }
-
- static subscriber<T, observer_type> make(dest_type d, window_values v) {
- auto cs = d.get_subscription();
- return make_subscriber<T>(std::move(cs), observer_type(this_type(std::move(d), std::move(v))));
- }
- };
-
- template<class Subscriber>
- auto operator()(Subscriber dest) const
- -> decltype(window_observer<Subscriber>::make(std::move(dest), initial)) {
- return window_observer<Subscriber>::make(std::move(dest), initial);
- }
-};
-
-}
-
-/*! @copydoc rx-window.hpp
-*/
-template<class... AN>
-auto window(AN&&... an)
- -> operator_factory<window_tag, AN...> {
- return operator_factory<window_tag, AN...>(std::make_tuple(std::forward<AN>(an)...));
-}
-
-}
-
-template<>
-struct member_overload<window_tag>
-{
- template<class Observable,
- class Enabled = rxu::enable_if_all_true_type_t<
- is_observable<Observable>>,
- class SourceValue = rxu::value_type_t<Observable>,
- class Window = rxo::detail::window<SourceValue>,
- class Value = rxu::value_type_t<Window>>
- static auto member(Observable&& o, int count, int skip)
- -> decltype(o.template lift<Value>(Window(count, skip))) {
- return o.template lift<Value>(Window(count, skip));
- }
-
- template<class Observable,
- class Enabled = rxu::enable_if_all_true_type_t<
- is_observable<Observable>>,
- class SourceValue = rxu::value_type_t<Observable>,
- class Window = rxo::detail::window<SourceValue>,
- class Value = rxu::value_type_t<Window>>
- static auto member(Observable&& o, int count)
- -> decltype(o.template lift<Value>(Window(count, count))) {
- return o.template lift<Value>(Window(count, count));
- }
-
- template<class... AN>
- static operators::detail::window_invalid_t<AN...> member(AN...) {
- std::terminate();
- return {};
- static_assert(sizeof...(AN) == 10000, "window takes (Count, optional Skip)");
- }
-};
-
-}
-
-#endif