slstatus/components/uptime.c
Laslo Hunhold 9750a3d731 Use indentation to increase readability
Granted, this style is definitely not common, but for the short
utility-functions of this program it's just the right choice. This
provides great flexibility, such that in the long run, it will be
possible to also share code between the OS-implementations.

This also keeps the state-keeping at a minimum and makes it clearer
which functions are implemented on which OS without having to jiggle
around with too many files in the process.
2018-05-01 19:43:49 +02:00

62 lines
1,009 B
C

/* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include "../util.h"
#if defined(__linux__)
#include <sys/sysinfo.h>
const char *
uptime(void)
{
int h;
int m;
int uptime = 0;
struct sysinfo info;
sysinfo(&info);
uptime = info.uptime;
h = uptime / 3600;
m = (uptime - h * 3600) / 60;
return bprintf("%dh %dm", h, m);
}
#elif defined(__OpenBSD__)
#include <sys/sysctl.h>
#include <sys/time.h>
const char *
uptime(void)
{
int h;
int m;
int uptime = 0;
int mib[2];
size_t size;
time_t now;
struct timeval boottime;
time(&now);
mib[0] = CTL_KERN;
mib[1] = KERN_BOOTTIME;
size = sizeof(boottime);
if (sysctl(mib, 2, &boottime, &size, NULL, 0) != -1)
uptime = now - boottime.tv_sec;
else {
fprintf(stderr, "sysctl 'KERN_BOOTTIME': %s\n", strerror(errno));
return NULL;
}
h = uptime / 3600;
m = (uptime - h * 3600) / 60;
return bprintf("%dh %dm", h, m);
}
#endif