41 lines · c
1// SPDX-License-Identifier: LGPL-2.1+2// Copyright (C) 2022, Linaro Ltd - Daniel Lezcano <daniel.lezcano@linaro.org>3#include <stdio.h>4#include <sys/time.h>5#include <linux/sysinfo.h>6#include "thermal-tools.h"7 8static unsigned long __offset;9static struct timeval __tv;10 11int uptimeofday_init(void)12{13 struct sysinfo info;14 15 if (sysinfo(&info))16 return -1;17 18 gettimeofday(&__tv, NULL);19 20 __offset = __tv.tv_sec - info.uptime;21 22 return 0;23}24 25unsigned long getuptimeofday_ms(void)26{27 gettimeofday(&__tv, NULL);28 29 return ((__tv.tv_sec - __offset) * 1000) + (__tv.tv_usec / 1000);30}31 32struct timespec msec_to_timespec(int msec)33{34 struct timespec tv = {35 .tv_sec = (msec / 1000),36 .tv_nsec = (msec % 1000) * 1000000,37 };38 39 return tv;40}41