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Dependents: TYBLE16_simple_data_logger TYBLE16_MP3_Air
lwip_random.h
00001 /* mbed Microcontroller Library 00002 * Copyright (c) 2017 ARM Limited 00003 * 00004 * Licensed under the Apache License, Version 2.0 (the "License"); 00005 * you may not use this file except in compliance with the License. 00006 * You may obtain a copy of the License at 00007 * 00008 * http://www.apache.org/licenses/LICENSE-2.0 00009 * 00010 * Unless required by applicable law or agreed to in writing, software 00011 * distributed under the License is distributed on an "AS IS" BASIS, 00012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00013 * See the License for the specific language governing permissions and 00014 * limitations under the License. 00015 */ 00016 00017 #ifndef LWIP_HDR_RANDOM_H 00018 #define LWIP_HDR_RANDOM_H 00019 00020 #ifdef __cplusplus 00021 extern "C" { 00022 #endif 00023 00024 /** Init seed for Pseudo Random 00025 * 00026 * Function shall seed the pseudo-random generator. Function 00027 * is called during lwip initialisation. 00028 */ 00029 void lwip_seed_random(void); 00030 00031 /** Update seed for pseudo-random generator 00032 * 00033 * Adds seed information to existing generator, to perturb the 00034 * sequence. 00035 * 00036 * @param seed 64 bits of data to add to the seed. 00037 */ 00038 void lwip_add_random_seed(uint64_t seed); 00039 00040 /** Generates random number. 00041 * 00042 * @return 32-bit random number 00043 */ 00044 uint32_t lwip_get_random(void); 00045 00046 #ifdef __cplusplus 00047 } 00048 #endif 00049 00050 #endif /* LWIP_HDR_RANDOM_H */
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