50 lines
1.6 KiB
C++
50 lines
1.6 KiB
C++
/* Copyright 2015 The TensorFlow Authors. All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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#include "guarded_philox_random.h"
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#include "random.h"
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namespace tensorflow {
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void GuardedPhiloxRandom::Init(int64 seed, int64 seed2) {
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// CHECK(!initialized_);
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if (seed == 0 && seed2 == 0) {
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// If both seeds are unspecified, use completely random seeds.
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seed = random::New64();
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seed2 = random::New64();
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}
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// mutex_lock lock(mu_);
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generator_ = random::PhiloxRandom(seed, seed2);
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initialized_ = true;
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}
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void GuardedPhiloxRandom::Init(random::PhiloxRandom::ResultType counter,
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random::PhiloxRandom::Key key) {
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// CHECK(!initialized_);
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// mutex_lock lock(mu_);
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generator_ = random::PhiloxRandom(counter, key);
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initialized_ = true;
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}
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random::PhiloxRandom GuardedPhiloxRandom::ReserveSamples128(int64 samples) {
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// CHECK(initialized_);
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// mutex_lock lock(mu_);
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auto local = generator_;
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generator_.Skip(samples);
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return local;
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}
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} // namespace tensorflow
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