mirror of
https://github.com/mysensors/MySensors.git
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97 lines
2.2 KiB
C++
97 lines
2.2 KiB
C++
/*
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* The MySensors Arduino library handles the wireless radio link and protocol
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* between your home built sensors/actuators and HA controller of choice.
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* The sensors forms a self healing radio network with optional repeaters. Each
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* repeater and gateway builds a routing tables in EEPROM which keeps track of the
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* network topology allowing messages to be routed to nodes.
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*
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* Created by Henrik Ekblad <henrik.ekblad@mysensors.org>
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* Copyright (C) 2013-2018 Sensnology AB
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* Full contributor list: https://github.com/mysensors/MySensors/graphs/contributors
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*
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* Documentation: http://www.mysensors.org
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* Support Forum: http://forum.mysensors.org
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*/
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#include <time.h>
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#include <sys/time.h>
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#include <stdlib.h>
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#include "Arduino.h"
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// For millis()
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static unsigned long millis_at_start = 0;
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void yield(void) {}
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unsigned long millis(void)
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{
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timeval curTime;
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if (millis_at_start == 0) {
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gettimeofday(&curTime, NULL);
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millis_at_start = curTime.tv_sec;
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}
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gettimeofday(&curTime, NULL);
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return ((curTime.tv_sec - millis_at_start) * 1000) + (curTime.tv_usec / 1000);
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}
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unsigned long micros()
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{
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timeval curTime;
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if (millis_at_start == 0) {
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gettimeofday(&curTime, NULL);
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millis_at_start = curTime.tv_sec;
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}
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gettimeofday(&curTime, NULL);
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return ((curTime.tv_sec - millis_at_start) * 1000000) + (curTime.tv_usec);
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}
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void _delay_milliseconds(unsigned int millis)
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{
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struct timespec sleeper;
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sleeper.tv_sec = (time_t)(millis / 1000);
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sleeper.tv_nsec = (long)(millis % 1000) * 1000000;
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nanosleep(&sleeper, NULL);
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}
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void _delay_microseconds(unsigned int micro)
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{
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struct timespec sleeper;
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sleeper.tv_sec = (time_t)(micro / 1000000);
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sleeper.tv_nsec = (long)(micro % 1000000) * 1000;
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nanosleep(&sleeper, NULL);
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}
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void randomSeed(unsigned long seed)
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{
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if (seed != 0) {
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srand(seed);
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}
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}
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long randMax(long howbig)
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{
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if (howbig == 0) {
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return 0;
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}
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return rand() % howbig;
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}
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long randMinMax(long howsmall, long howbig)
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{
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if (howsmall >= howbig) {
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return howsmall;
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}
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long diff = howbig - howsmall;
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return randMax(diff) + howsmall;
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}
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