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/***************************************************************************** |
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* |
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* Copyright (C) 2021 Richard Hacker (lerichi at gmx dot net), |
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* Florian Pose (fp at igh dot de), |
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* Bjarne von Horn (vh at igh dot de). |
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* |
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* This file is part of the PdCom library. |
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* |
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* The PdCom library is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or (at your |
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* option) any later version. |
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* |
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* The PdCom library is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public |
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* License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with the PdCom library. If not, see <http://www.gnu.org/licenses/>. |
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* |
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*****************************************************************************/ |
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#ifndef PDCOM5_MSRPROTO_SUBSCRIPTION_H |
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#define PDCOM5_MSRPROTO_SUBSCRIPTION_H |
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#include "../Selector.h" |
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#include "../Subscription.h" |
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#include <vector> |
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namespace PdCom { namespace impl { namespace MsrProto { |
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class Variable; |
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class InvalidSubscription : public PdCom::impl::Subscription |
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{ |
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public: |
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InvalidSubscription( |
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PdCom::Subscription *This, |
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PdCom::Subscriber &subscriber, |
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std::weak_ptr<impl::Process> process, |
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std::shared_ptr<const PdCom::impl::Variable> var = nullptr) : |
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PdCom::impl::Subscription(var, This, subscriber, process) |
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{} |
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void poll() override; |
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const void *getData() const override; |
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protected: |
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template <typename T> |
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static void unsubscribe(T &This); |
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}; |
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class PendingSubscription : public InvalidSubscription |
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{ |
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std::shared_ptr<const PdCom::impl::Selector> selector_; |
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public: |
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PendingSubscription( |
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PdCom::Subscription *This, |
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PdCom::Subscriber &subscriber, |
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std::weak_ptr<impl::Process> process, |
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std::shared_ptr<const PdCom::impl::Selector> selector) : |
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InvalidSubscription(This, subscriber, process), |
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selector_(std::move(selector)) |
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{} |
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std::shared_ptr<const PdCom::impl::Selector> getSelector() const |
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{ |
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return selector_; |
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} |
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}; |
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class PollSubscription : |
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public InvalidSubscription, |
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public std::enable_shared_from_this<PollSubscription> |
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{ |
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public: |
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PollSubscription( |
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std::shared_ptr<const Variable> variable, |
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PdCom::Subscription *This, |
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PdCom::Subscriber &subscriber, |
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std::weak_ptr<impl::Process> process, |
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const PdCom::Selector &selector); |
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void poll() override; |
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const void *getData() const override { return data_.data(); } |
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void readData(const char *data) { copy_function_(data_.data(), data); } |
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bool pollData(uint64_t mtime, const char *data); |
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const bool is_parameter_; |
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private: |
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PdCom::impl::Selector::CopyFunctionType copy_function_; |
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std::vector<char> data_; |
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}; |
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class EventSubscription : public PollSubscription |
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{ |
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public: |
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using PollSubscription::PollSubscription; |
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~EventSubscription(); |
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}; |
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class PeriodicSubscription : public PollSubscription |
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{ |
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public: |
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using PollSubscription::PollSubscription; |
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~PeriodicSubscription(); |
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}; |
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}}} // namespace PdCom::impl::MsrProto |
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#endif // PDCOM5_MSRPROTO_SUBSCRIPTION_H |
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