make_persistent_atomic.hpp

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/*
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#ifndef LIBPMEMOBJ_CPP_MAKE_PERSISTENT_ATOMIC_HPP
#define LIBPMEMOBJ_CPP_MAKE_PERSISTENT_ATOMIC_HPP
 
#include <libpmemobj++/detail/check_persistent_ptr_array.hpp>
#include <libpmemobj++/detail/common.hpp>
#include <libpmemobj++/detail/make_atomic_impl.hpp>
#include <libpmemobj++/detail/pexceptions.hpp>
#include <libpmemobj++/pool.hpp>
#include <libpmemobj/atomic_base.h>
 
#include <tuple>
 
namespace pmem
{
 
namespace obj
{
 
template <typename T, typename... Args>
void
make_persistent_atomic(pool_base &pool,
               typename detail::pp_if_not_array<T>::type &ptr,
               Args &&... args)
{
    std::tuple<Args &...> arg_pack{args...};
    auto ret = pmemobj_alloc(pool.handle(), ptr.raw_ptr(), sizeof(T),
                 detail::type_num<T>(),
                 &detail::obj_constructor<T, Args...>,
                 static_cast<void *>(&arg_pack));
 
    if (ret != 0)
        throw std::bad_alloc();
}
 
template <typename T>
void
delete_persistent_atomic(
    typename detail::pp_if_not_array<T>::type &ptr) noexcept
{
    if (ptr == nullptr)
        return;
 
    /* we CAN'T call the destructor */
    pmemobj_free(ptr.raw_ptr());
}
 
} /* namespace obj */
 
} /* namespace pmem */
 
#endif /* LIBPMEMOBJ_CPP_MAKE_PERSISTENT_ATOMIC_HPP */