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ad824b4de1
Delete special member functions where they are not used. (as part of applying suggestions from cppcoreguidelines-special-member-functions) These classes don't need to be copyable/movable: # copy/move not used: zmq:: TransportFactory, Socket, Message, UnmanagedRegion, Poller, Context shm:: TransportFactory, Socket, Message, UnmanagedRegion, Poller ofi:: TransportFactory, Socket, Message, Context shm:: ZMsg, Region, Monitor, TerminalConfig, Manager plugins:: Config, Control, TerminalConfig fairmq::StateQueue, StateMachine, ProgOptions, PluginServices, PluginManager, Plugin, Device, StateSubscription TestData, BadDevice, TestDevice (test suite heplers) # used via ptr interface: fairmq::UnmanagedRegion, TransportFactory, Socket, Poller, Message These classes need to be movable/copyable: MyClass (test suite helper), fairmq::Channel, fairmq::Parts
96 lines
2.6 KiB
C++
96 lines
2.6 KiB
C++
/********************************************************************************
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* Copyright (C) 2019 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH *
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* *
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* This software is distributed under the terms of the *
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* GNU Lesser General Public Licence (LGPL) version 3, *
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* copied verbatim in the file "LICENSE" *
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********************************************************************************/
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#ifndef FAIRMQSTATEQUEUE_H_
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#define FAIRMQSTATEQUEUE_H_
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#include <fairmq/States.h>
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#include <queue>
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#include <mutex>
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#include <chrono>
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#include <utility> // pair
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#include <condition_variable>
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namespace fair::mq
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{
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class StateQueue
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{
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public:
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StateQueue() = default;
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StateQueue(const StateQueue&) = delete;
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StateQueue(StateQueue&&) = delete;
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StateQueue& operator=(const StateQueue&) = delete;
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StateQueue& operator=(StateQueue&&) = delete;
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~StateQueue() = default;
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fair::mq::State WaitForNext()
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{
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std::unique_lock<std::mutex> lock(fMtx);
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while (fStates.empty()) {
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fCV.wait_for(lock, std::chrono::milliseconds(50));
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}
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fair::mq::State state = fStates.front();
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if (state == fair::mq::State::Error) {
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throw DeviceErrorState("Controlled device transitioned to error state.");
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}
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fStates.pop();
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return state;
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}
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template<typename Rep, typename Period>
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std::pair<bool, fair::mq::State> WaitForNext(std::chrono::duration<Rep, Period> const& duration)
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{
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std::unique_lock<std::mutex> lock(fMtx);
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fCV.wait_for(lock, duration);
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if (fStates.empty()) {
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return { false, fair::mq::State::Ok };
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}
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fair::mq::State state = fStates.front();
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if (state == fair::mq::State::Error) {
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throw DeviceErrorState("Controlled device transitioned to error state.");
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}
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fStates.pop();
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return { true, state };
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}
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void WaitForState(fair::mq::State state) { while (WaitForNext() != state) {} }
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void Push(fair::mq::State state)
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{
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{
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std::lock_guard<std::mutex> lock(fMtx);
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fStates.push(state);
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}
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fCV.notify_all();
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}
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void Clear()
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{
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std::lock_guard<std::mutex> lock(fMtx);
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fStates = std::queue<fair::mq::State>();
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}
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private:
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std::queue<fair::mq::State> fStates;
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std::mutex fMtx;
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std::condition_variable fCV;
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};
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} // namespace fair::mq
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#endif /* FAIRMQSTATEQUEUE_H_ */
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