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diff --git a/Rx/v2/src/rxcpp/operators/rx-multicast.hpp b/Rx/v2/src/rxcpp/operators/rx-multicast.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-multicast.hpp
-
- \brief allows connections to the source to be independent of subscriptions.
-
- \tparam Subject the subject to multicast the source Observable.
-
- \param sub the subject.
-*/
-
-#if !defined(RXCPP_OPERATORS_RX_MULTICAST_HPP)
-#define RXCPP_OPERATORS_RX_MULTICAST_HPP
-
-#include "../rx-includes.hpp"
-
-namespace rxcpp {
-
-namespace operators {
-
-namespace detail {
-
-template<class... AN>
-struct multicast_invalid_arguments {};
-
-template<class... AN>
-struct multicast_invalid : public rxo::operator_base<multicast_invalid_arguments<AN...>> {
- using type = observable<multicast_invalid_arguments<AN...>, multicast_invalid<AN...>>;
-};
-template<class... AN>
-using multicast_invalid_t = typename multicast_invalid<AN...>::type;
-
-template<class T, class Observable, class Subject>
-struct multicast : public operator_base<T>
-{
- typedef rxu::decay_t<Observable> source_type;
- typedef rxu::decay_t<Subject> subject_type;
-
- struct multicast_state : public std::enable_shared_from_this<multicast_state>
- {
- multicast_state(source_type o, subject_type sub)
- : source(std::move(o))
- , subject_value(std::move(sub))
- {
- }
- source_type source;
- subject_type subject_value;
- rxu::detail::maybe<typename composite_subscription::weak_subscription> connection;
- };
-
- std::shared_ptr<multicast_state> state;
-
- multicast(source_type o, subject_type sub)
- : state(std::make_shared<multicast_state>(std::move(o), std::move(sub)))
- {
- }
- template<class Subscriber>
- void on_subscribe(Subscriber&& o) const {
- state->subject_value.get_observable().subscribe(std::forward<Subscriber>(o));
- }
- void on_connect(composite_subscription cs) const {
- if (state->connection.empty()) {
- auto destination = state->subject_value.get_subscriber();
-
- // the lifetime of each connect is nested in the subject lifetime
- state->connection.reset(destination.add(cs));
-
- auto localState = state;
-
- // when the connection is finished it should shutdown the connection
- cs.add(
- [destination, localState](){
- if (!localState->connection.empty()) {
- destination.remove(localState->connection.get());
- localState->connection.reset();
- }
- });
-
- // use cs not destination for lifetime of subscribe.
- state->source.subscribe(cs, destination);
- }
- }
-};
-
-}
-
-/*! @copydoc rx-multicast.hpp
-*/
-template<class... AN>
-auto multicast(AN&&... an)
- -> operator_factory<multicast_tag, AN...> {
- return operator_factory<multicast_tag, AN...>(std::make_tuple(std::forward<AN>(an)...));
-}
-
-}
-
-template<>
-struct member_overload<multicast_tag>
-{
- template<class Observable, class Subject,
- class Enabled = rxu::enable_if_all_true_type_t<
- is_observable<Observable>>,
- class SourceValue = rxu::value_type_t<Observable>,
- class Multicast = rxo::detail::multicast<SourceValue, rxu::decay_t<Observable>, rxu::decay_t<Subject>>,
- class Value = rxu::value_type_t<Multicast>,
- class Result = connectable_observable<Value, Multicast>>
- static Result member(Observable&& o, Subject&& sub) {
- return Result(Multicast(std::forward<Observable>(o), std::forward<Subject>(sub)));
- }
-
- template<class... AN>
- static operators::detail::multicast_invalid_t<AN...> member(AN...) {
- std::terminate();
- return {};
- static_assert(sizeof...(AN) == 10000, "multicast takes (Subject)");
- }
-};
-
-}
-
-#endif