mirror of https://github.com/ARMmbed/mbed-os.git
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2017 ARM Limited
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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 LWIP_HDR_RANDOM_H
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#define LWIP_HDR_RANDOM_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** Init seed for Pseudo Random
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*
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* Function shall seed the pseudo-random generator. Function
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* is called during lwip initialisation.
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*/
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void lwip_seed_random(void);
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/** Update seed for pseudo-random generator
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*
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* Adds seed information to existing generator, to perturb the
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* sequence.
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*
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* @param seed 64 bits of data to add to the seed.
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*/
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void lwip_add_random_seed(uint64_t seed);
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/** Generates random number.
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*
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* @return 32-bit random number
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*/
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uint32_t lwip_get_random(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* LWIP_HDR_RANDOM_H */
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