make_persistent_atomic.hpp

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/*
 * Copyright 2016, Intel Corporation
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#ifndef PMEMOBJ_MAKE_PERSISTENT_ATOMIC_HPP
#define PMEMOBJ_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 nvml
{

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)
{
    auto arg_pack = std::make_tuple(args...);
    auto ret = pmemobj_alloc(pool.get_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 nvml */

#endif /* PMEMOBJ_MAKE_PERSISTENT_ATOMIC_HPP */