mirror of
https://github.com/OpenSpace/OpenSpace.git
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74 lines
3.2 KiB
C++
74 lines
3.2 KiB
C++
/*****************************************************************************************
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* *
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* OpenSpace *
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* *
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* Copyright (c) 2014-2022 *
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* *
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* Permission is hereby granted, free of charge, to any person obtaining a copy of this *
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* software and associated documentation files (the "Software"), to deal in the Software *
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* without restriction, including without limitation the rights to use, copy, modify, *
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* merge, publish, distribute, sublicense, and/or sell copies of the Software, and to *
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* permit persons to whom the Software is furnished to do so, subject to the following *
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* conditions: *
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* *
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* The above copyright notice and this permission notice shall be included in all copies *
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* or substantial portions of the Software. *
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* *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, *
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* INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A *
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* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT *
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF *
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE *
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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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****************************************************************************************/
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namespace openspace {
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template <typename T>
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T InterruptibleConcurrentQueue<T>::pop() {
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auto isInterruptedOrNotEmpty = [this]() {
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if (_interrupted) return true;
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return !_queue.empty();
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};
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std::unique_lock lock(_mutex);
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// Block execution until interrupted or queue not empty
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if (!isInterruptedOrNotEmpty()) {
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_notifyForPop.wait(lock, isInterruptedOrNotEmpty);
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}
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if (_interrupted) throw ghoul::RuntimeError{""};
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auto item = _queue.front();
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_queue.pop();
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return item;
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}
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template <typename T>
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void InterruptibleConcurrentQueue<T>::interrupt() {
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_interrupted = true;
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_notifyForPop.notify_all();
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}
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template <typename T>
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void InterruptibleConcurrentQueue<T>::push(const T& item) {
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if (_interrupted) return;
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std::unique_lock<std::mutex> mlock(_mutex);
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_queue.push(item);
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mlock.unlock();
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_notifyForPop.notify_one();
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}
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template <typename T>
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void InterruptibleConcurrentQueue<T>::push(T&& item) {
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if (_interrupted) return;
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std::unique_lock<std::mutex> mlock(_mutex);
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_queue.push(std::move(item));
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mlock.unlock();
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_notifyForPop.notify_one();
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}
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} // namespace openspace
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