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strengthened memory order for metadata manipulation

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joaquintides
2023-12-11 18:54:10 +01:00
parent 901d652fd7
commit b087f9fb53
1 changed files with 12 additions and 0 deletions
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12
include/boost/unordered/detail/foa/concurrent_table.hpp
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@ -205,6 +205,17 @@ private:
template<typename Integral> template<typename Integral>
struct atomic_integral struct atomic_integral
{ {
#if defined(BOOST_UNORDERED_LATCH_FREE)
operator Integral()const{return n.load();}
void operator=(Integral m){n.store(m);}
void operator|=(Integral m){n.fetch_or(m);}
void operator&=(Integral m){n.fetch_and(m);}
atomic_integral& operator=(atomic_integral const& rhs) {
n.store(rhs.n.load());
return *this;
}
#else
operator Integral()const{return n.load(std::memory_order_relaxed);} operator Integral()const{return n.load(std::memory_order_relaxed);}
void operator=(Integral m){n.store(m,std::memory_order_relaxed);} void operator=(Integral m){n.store(m,std::memory_order_relaxed);}
void operator|=(Integral m){n.fetch_or(m,std::memory_order_relaxed);} void operator|=(Integral m){n.fetch_or(m,std::memory_order_relaxed);}
@ -214,6 +225,7 @@ struct atomic_integral
n.store(rhs.n.load(std::memory_order_relaxed),std::memory_order_relaxed); n.store(rhs.n.load(std::memory_order_relaxed),std::memory_order_relaxed);
return *this; return *this;
} }
#endif
std::atomic<Integral> n; std::atomic<Integral> n;
}; };