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#ifndef ATOMIC_OBJECT_INL_H_
#error "Direct inclusion of this file is not allowed, include atomic_object.h"
// For the sake of sane code completion.
#include "atomic_object.h"
#endif
namespace NYT {
////////////////////////////////////////////////////////////////////////////////
template <class T>
template <class U>
TAtomicObject<T>::TAtomicObject(U&& u)
: Object_(std::forward<U>(u))
{ }
template <class T>
template <class U>
void TAtomicObject<T>::Store(U&& u)
{
// NB: Using exchange to avoid destructing the old object while holding the lock.
std::ignore = Exchange(std::forward<U>(u));
}
template <class T>
template <class U>
T TAtomicObject<T>::Exchange(U&& u)
{
T tmpObject = std::forward<U>(u);
{
auto guard = WriterGuard(Spinlock_);
std::swap(Object_, tmpObject);
}
return tmpObject;
}
template <class T>
bool TAtomicObject<T>::CompareExchange(T& expected, const T& desired)
{
auto guard = WriterGuard(Spinlock_);
if (Object_ == expected) {
auto oldObject = std::move(Object_);
Y_UNUSED(oldObject);
Object_ = desired;
guard.Release();
return true;
} else {
auto oldExpected = std::move(expected);
Y_UNUSED(oldExpected);
expected = Object_;
guard.Release();
return false;
}
}
template <class T>
template <std::invocable<T&> F>
std::invoke_result_t<F, T&> TAtomicObject<T>::Transform(const F& func)
{
auto guard = WriterGuard(Spinlock_);
return func(Object_);
}
template <class T>
template <std::invocable<const T&> F>
std::invoke_result_t<F, const T&> TAtomicObject<T>::Read(const F& func) const
{
auto guard = ReaderGuard(Spinlock_);
return func(Object_);
}
template <class T>
T TAtomicObject<T>::Load() const
{
auto guard = ReaderGuard(Spinlock_);
return Object_;
}
////////////////////////////////////////////////////////////////////////////////
template <class TOriginal, class TSerialized>
void ToProto(TSerialized* serialized, const TAtomicObject<TOriginal>& original)
{
ToProto(serialized, original.Load());
}
template <class TOriginal, class TSerialized>
void FromProto(TAtomicObject<TOriginal>* original, const TSerialized& serialized)
{
TOriginal data;
FromProto(&data, serialized);
original->Store(std::move(data));
}
////////////////////////////////////////////////////////////////////////////////
} // namespace NYT
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