| Directory: | ./ |
|---|---|
| File: | src/msrproto/Subscription.cpp |
| Date: | 2024-03-27 13:09:52 |
| Exec | Total | Coverage | |
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| Lines: | 30 | 31 | 96.8% |
| Branches: | 22 | 34 | 64.7% |
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| 1 | /***************************************************************************** | ||
| 2 | * | ||
| 3 | * Copyright (C) 2021 Richard Hacker (lerichi at gmx dot net), | ||
| 4 | * Florian Pose (fp at igh dot de), | ||
| 5 | * Bjarne von Horn (vh at igh dot de). | ||
| 6 | * | ||
| 7 | * This file is part of the PdCom library. | ||
| 8 | * | ||
| 9 | * The PdCom library is free software: you can redistribute it and/or modify | ||
| 10 | * it under the terms of the GNU Lesser General Public License as published by | ||
| 11 | * the Free Software Foundation, either version 3 of the License, or (at your | ||
| 12 | * option) any later version. | ||
| 13 | * | ||
| 14 | * The PdCom library is distributed in the hope that it will be useful, but | ||
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | ||
| 16 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public | ||
| 17 | * License for more details. | ||
| 18 | * | ||
| 19 | * You should have received a copy of the GNU Lesser General Public License | ||
| 20 | * along with the PdCom library. If not, see <http://www.gnu.org/licenses/>. | ||
| 21 | * | ||
| 22 | *****************************************************************************/ | ||
| 23 | |||
| 24 | #include "Subscription.h" | ||
| 25 | |||
| 26 | #include "../Process.h" | ||
| 27 | #include "ProtocolHandler.h" | ||
| 28 | #include "Variable.h" | ||
| 29 | |||
| 30 | #include <cstring> | ||
| 31 | #include <pdcom5/Exception.h> | ||
| 32 | #include <pdcom5/Process.h> | ||
| 33 | #include <pdcom5/details.h> | ||
| 34 | |||
| 35 | using PdCom::impl::MsrProto::EventSubscription; | ||
| 36 | using PdCom::impl::MsrProto::InvalidSubscription; | ||
| 37 | using PdCom::impl::MsrProto::PendingSubscription; | ||
| 38 | using PdCom::impl::MsrProto::PeriodicSubscription; | ||
| 39 | using PdCom::impl::MsrProto::PollSubscription; | ||
| 40 | using PdCom::impl::MsrProto::ProtocolHandler; | ||
| 41 | |||
| 42 | template <typename T> | ||
| 43 | 76 | void InvalidSubscription::unsubscribe(T &This) | |
| 44 | { | ||
| 45 |
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152 | if (const auto p = This.process_.lock()) { |
| 46 | 67 | const auto ph = p->template castProtocolHandler<ProtocolHandler>(); | |
| 47 |
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67 | if (ph) |
| 48 | 66 | ph->unsubscribe(This); | |
| 49 | } | ||
| 50 | 76 | } | |
| 51 | |||
| 52 | 1 | void InvalidSubscription::poll() | |
| 53 | { | ||
| 54 |
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1 | throw PdCom::InvalidSubscription(); |
| 55 | } | ||
| 56 | |||
| 57 | 2 | const void *InvalidSubscription::getData() const | |
| 58 | { | ||
| 59 |
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2 | throw PdCom::InvalidSubscription(); |
| 60 | } | ||
| 61 | |||
| 62 | 50 | EventSubscription::~EventSubscription() | |
| 63 | { | ||
| 64 | 25 | unsubscribe(*this); | |
| 65 | 25 | } | |
| 66 | |||
| 67 | 102 | PeriodicSubscription::~PeriodicSubscription() | |
| 68 | { | ||
| 69 | 51 | unsubscribe(*this); | |
| 70 | 51 | } | |
| 71 | |||
| 72 | 86 | PollSubscription::PollSubscription( | |
| 73 | std::shared_ptr<const PdCom::impl::MsrProto::Variable> variable, | ||
| 74 | PdCom::Subscription *This, | ||
| 75 | PdCom::Subscriber &subscriber, | ||
| 76 | std::weak_ptr<PdCom::impl::Process> process, | ||
| 77 | 86 | const PdCom::Selector &selector) : | |
| 78 | InvalidSubscription( | ||
| 79 | This, | ||
| 80 | subscriber, | ||
| 81 | process, | ||
| 82 | 172 | std::static_pointer_cast<const PdCom::impl::Variable>(variable)), | |
| 83 |
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172 | is_parameter_(variable->is_parameter_), |
| 84 | 86 | copy_function_(selector.impl_->getCopyFunction(*variable)), | |
| 85 |
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516 | data_(selector.impl_->getRequiredSize(*variable) + 2) |
| 86 | 82 | {} | |
| 87 | |||
| 88 | 14 | void PollSubscription::poll() | |
| 89 | { | ||
| 90 |
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28 | if (const auto p = process_.lock()) { |
| 91 |
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14 | auto &h = p->template protocolHandler<ProtocolHandler>(); |
| 92 |
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14 | if (is_parameter_) |
| 93 |
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7 | h.pollParameter(*this); |
| 94 | else | ||
| 95 |
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7 | h.pollChannel(*this); |
| 96 | } | ||
| 97 | else | ||
| 98 | ✗ | throw ProcessGoneAway(); | |
| 99 | 13 | } | |
| 100 |