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42 lines
822 B
C++
42 lines
822 B
C++
/* Wrapper around queue that uses POSIX CV's for signalling writes.
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*
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* Author: Georg Martin Reinke <georg.reinke@rwth-aachen.de>
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* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include <condition_variable>
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#include <mutex>
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#include <villas/queue.hpp>
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namespace villas {
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template <typename T> class QueueSignalled : public Queue<T> {
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private:
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std::condition_variable cv;
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public:
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void push(const T &data) {
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Queue<T>::push(data);
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cv.notify_one();
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}
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T pop() {
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std::unique_lock<std::mutex> l(Queue<T>::mtx);
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while (Queue<T>::queue.empty())
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cv.wait(l);
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T res = Queue<T>::queue.front();
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Queue<T>::queue.pop();
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return res;
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}
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};
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} // namespace villas
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