Coverage Report

Created: 2020-05-23 13:54

/src/botan/build/include/botan/atomic.h
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/*
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 * Atomic
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 * (C) 2016 Matthias Gierlings
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 *
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 * Botan is released under the Simplified BSD License (see license.txt)
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 **/
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#ifndef BOTAN_ATOMIC_H_
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#define BOTAN_ATOMIC_H_
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#include <botan/types.h>
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#include <atomic>
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#include <memory>
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//BOTAN_FUTURE_INTERNAL_HEADER(atomic.h)
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namespace Botan {
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template <typename T>
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/**
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 * Simple helper class to expand std::atomic with copy constructor and copy
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 * assignment operator, i.e. for use as element in a container like
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 * std::vector. The construction of instances of this wrapper is NOT atomic
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 * and needs to be properly guarded.
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 **/
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class Atomic final
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   {
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   public:
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      Atomic() = default;
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      Atomic(const Atomic& data) : m_data(data.m_data.load()) {}
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      Atomic(const std::atomic<T>& data) : m_data(data.load()) {}
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      ~Atomic() = default;
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      Atomic& operator=(const Atomic& a)
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         {
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         m_data.store(a.m_data.load());
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         return *this;
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         }
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      Atomic& operator=(const std::atomic<T>& a)
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         {
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         m_data.store(a.load());
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         return *this;
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         }
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      operator std::atomic<T>& () { return m_data; }
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      operator T() { return m_data.load(); }
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   private:
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      std::atomic<T> m_data;
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   };
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}
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#endif