79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
#ifndef PROJECT_TSQUEUE_H
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#define PROJECT_TSQUEUE_H
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#include <mutex>
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#include <condition_variable>
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#include <queue>
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namespace ffcpp {
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template<typename T> class TSQueue {
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private:
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using LockType = std::lock_guard<std::mutex>;
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private:
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mutable std::mutex _mutex;
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std::condition_variable _readCond;
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std::condition_variable _writeCond;
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std::queue<std::shared_ptr<T>> _queue;
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size_t _maxSize;
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public:
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TSQueue(size_t maxSize): _maxSize(maxSize) {
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}
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bool empty() const {
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LockType lock(_mutex);
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return _queue.empty();
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}
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void push(T value) {
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auto data = std::make_shared<T>(std::move(value));
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LockType lock(_mutex);
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_queue.push(data);
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_readCond.notify_one();
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}
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void pushOrWait(T value) {
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auto data = std::make_shared<T>(std::move(value));
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std::unique_lock<std::mutex> lock(_mutex);
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if(_queue.size() == _maxSize) {
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_writeCond.wait(lock, [this]{ return _queue.size() < _maxSize; });
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}
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_queue.push(data);
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_readCond.notify_one();
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}
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std::shared_ptr<T> waitAndPop() {
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std::unique_lock<std::mutex> lock(_mutex);
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_readCond.wait(lock, [this]{ return !_queue.empty(); });
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auto res = _queue.front();
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_queue.pop();
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return res;
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}
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std::shared_ptr<T> tryPop() {
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LockType lock(_mutex);
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if(_queue.empty())
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return std::shared_ptr<T>();
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auto res = _queue.front();
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_queue.pop();
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return res;
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}
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std::shared_ptr<T> popOrWait() {
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std::unique_lock<std::mutex> lock(_mutex);
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if(_queue.empty()) {
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_readCond.wait(lock, [this]{ return !_queue.empty(); });
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}
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auto res = _queue.front();
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_queue.pop();
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return res;
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}
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};
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}
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#endif //PROJECT_TSQUEUE_H
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