traits.cuh

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/*
 * Copyright (c) 2021, NVIDIA CORPORATION.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
 
#pragma once
 
#include <cudf/types.hpp>
#include <cudf/utilities/type_dispatcher.hpp>
 
#include <cuda/std/atomic>
 
namespace cudf {
 
template <typename T>
constexpr inline bool has_atomic_support()
{
  return cuda::std::atomic<T>::is_always_lock_free;
}
 
struct has_atomic_support_impl {
  template <typename T>
  constexpr bool operator()()
  {
    return has_atomic_support<T>();
  }
};
 
constexpr inline bool has_atomic_support(data_type type)
{
  return cudf::type_dispatcher(type, has_atomic_support_impl{});
}
 
}  // namespace cudf