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50 lines
1.4 KiB
50 lines
1.4 KiB
/**
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* Copyright 2019 Huawei Technologies Co., Ltd
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef DATASET_UTIL_RANDOM_H_
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#define DATASET_UTIL_RANDOM_H_
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#include "dataset/util/random.h"
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#include <limits>
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#include <memory>
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#include <random>
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#include <string>
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#include "dataset/core/config_manager.h"
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#include "dataset/core/global_context.h"
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#include "dataset/util/status.h"
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namespace mindspore {
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namespace dataset {
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uint32_t GetSeed() {
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uint32_t seed = GlobalContext::config_manager()->seed();
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if (seed == std::mt19937::default_seed) {
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#if defined(_WIN32) || defined(_WIN64)
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std::random_device random_device;
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#else
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std::random_device random_device("/dev/urandom");
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#endif
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std::uniform_int_distribution<uint32_t> distribution(0, std::numeric_limits<uint32_t>::max());
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seed = distribution(random_device);
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}
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return seed;
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}
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} // namespace dataset
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} // namespace mindspore
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#endif // DATASET_UTIL_RANDOM_H_
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