/*

* SPDX-FileCopyrightText: Copyright (c) 2023 NVIDIA CORPORATION & AFFILIATES. All rights reserved.

* SPDX-License-Identifier: Apache-2.0

*

* 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.

*/

#include "error_handling.h"

#include <stdexcept>

#include <cuda_runtime.h>

void check_cuda_buffer(const void* ptr)

{

if (ptr == nullptr) {

throw std::runtime_error("NULL CUDA buffer not accepted");

}

cudaPointerAttributes attrs = {};

cudaError_t err = cudaPointerGetAttributes(&attrs, ptr);

cudaGetLastError(); // reset the cuda error (if any)

if (err != cudaSuccess || attrs.type == cudaMemoryTypeUnregistered) {

throw std::runtime_error("Buffer is not CUDA-accessible");

}

}