entropy_pool.h (1188B)
1 // Copyright 2017 The Abseil Authors. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // https://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef ABSL_RANDOM_INTERNAL_ENTROPY_POOL_H_ 16 #define ABSL_RANDOM_INTERNAL_ENTROPY_POOL_H_ 17 18 #include <cstddef> 19 20 #include "absl/base/config.h" 21 22 namespace absl { 23 ABSL_NAMESPACE_BEGIN 24 namespace random_internal { 25 26 // GetEntropyFromRandenPool() is a helper function that fills a memory region 27 // with random bytes from the RandenPool. This is used by the absl::BitGen 28 // implementation to fill the internal buffer. 29 void GetEntropyFromRandenPool(void* dest, size_t bytes); 30 31 } // namespace random_internal 32 ABSL_NAMESPACE_END 33 } // namespace absl 34 35 #endif // ABSL_RANDOM_INTERNAL_ENTROPY_POOL_H_