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comparison toys/uptime.c @ 466:9f1e089262cb

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Adding free and uptime
author Elie De Brauwer <eliedebrauwer@gmail.com>
date Mon, 13 Feb 2012 17:15:49 +0100
parents
children 77f590d2cad9
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465:ab6c0adfcc10 466:9f1e089262cb
1 /* vi: set sw=4 ts=4:
2 *
3 * uptime.c - Tell how long the system has been running.
4 *
5 * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
6 *
7 * Not in SUSv3.
8
9 USE_UPTIME(NEWTOY(uptime, NULL, TOYFLAG_USR|TOYFLAG_BIN))
10
11 config UPTIME
12 bool "uptime"
13 default y
14 help
15 usage: uptime
16
17 Tell how long the system has been running and the system load
18 averages for the past 1, 5 and 15 minutes.
19 */
20
21 #include "toys.h"
22 #include <sys/sysinfo.h>
23 #include <time.h>
24
25 void uptime_main(void)
26 {
27 struct sysinfo info;
28 time_t tmptime;
29 struct tm * now;
30 unsigned int days, hours, minutes;
31
32 // Obtain the data we need.
33 sysinfo(&info);
34 time(&tmptime);
35 now = localtime(&tmptime);
36
37 // Time
38 printf(" %02d:%02d:%02d up ", now->tm_hour, now->tm_min, now->tm_sec);
39 // Uptime
40 info.uptime /= 60;
41 minutes = info.uptime%60;
42 info.uptime /= 60;
43 hours = info.uptime%24;
44 days = info.uptime/24;
45 if (days) printf("%d day%s, ", days, (days!=1)?"s":"");
46 if (hours)
47 printf("%2d:%02d, ", hours, minutes);
48 else
49 printf("%d min, ", minutes);
50
51 printf(" load average: %.02f %.02f %.02f\n", info.loads[0]/65536.0,
52 info.loads[1]/65536.0, info.loads[2]/65536.0);
53
54 }