mirror of
https://github.com/torvalds/linux.git
synced 2024-12-06 02:52:22 +00:00
3b7c5e8adf
The next changes will provide a couple of tools using some common functions provided by this library. It provides basic wrappers for: - mainloop - logging - timestamp Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Link: https://lore.kernel.org/r/20220420160933.347088-3-daniel.lezcano@linaro.org
41 lines
735 B
C
41 lines
735 B
C
// SPDX-License-Identifier: LGPL-2.1+
|
|
// Copyright (C) 2022, Linaro Ltd - Daniel Lezcano <daniel.lezcano@linaro.org>
|
|
#include <stdio.h>
|
|
#include <sys/time.h>
|
|
#include <linux/sysinfo.h>
|
|
#include "thermal-tools.h"
|
|
|
|
static unsigned long __offset;
|
|
static struct timeval __tv;
|
|
|
|
int uptimeofday_init(void)
|
|
{
|
|
struct sysinfo info;
|
|
|
|
if (sysinfo(&info))
|
|
return -1;
|
|
|
|
gettimeofday(&__tv, NULL);
|
|
|
|
__offset = __tv.tv_sec - info.uptime;
|
|
|
|
return 0;
|
|
}
|
|
|
|
unsigned long getuptimeofday_ms(void)
|
|
{
|
|
gettimeofday(&__tv, NULL);
|
|
|
|
return ((__tv.tv_sec - __offset) * 1000) + (__tv.tv_usec / 1000);
|
|
}
|
|
|
|
struct timespec msec_to_timespec(int msec)
|
|
{
|
|
struct timespec tv = {
|
|
.tv_sec = (msec / 1000),
|
|
.tv_nsec = (msec % 1000) * 1000000,
|
|
};
|
|
|
|
return tv;
|
|
}
|