40 lines
639 B
C++
40 lines
639 B
C++
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/*
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* DoubleBuffer.hpp
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*
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* Created on: 15 мар. 2021 г.
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* Author: titov
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*/
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#ifndef UMLIBRARY_COMMON_DOUBLEBUFFER_HPP_
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#define UMLIBRARY_COMMON_DOUBLEBUFFER_HPP_
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#include <utility>
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template<typename V>
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class DoubleBuffer {
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bool flag = false;
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std::pair<V, V> data;
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public:
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void write( V v );
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V read() const;
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};
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template<typename V>
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inline void DoubleBuffer<V>::write( V v ) {
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( flag ? data.second : data.first ) = v;
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flag = not flag;
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}
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template<typename V>
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inline V DoubleBuffer<V>::read() const {
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return flag ? data.first : data.second;
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}
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#endif /* UMLIBRARY_COMMON_DOUBLEBUFFER_HPP_ */
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