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annotate toys/other/uptime.c @ 1727:c0ef9b7976f0 draft

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Use xsignal() instead of signal().
author Rob Landley <rob@landley.net>
date Tue, 10 Mar 2015 11:07:28 -0500
parents a3500bd8b322
children
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1 /* uptime.c - Tell how long the system has been running.
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2 *
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3 * Copyright 2012 Elie De Brauwer <eliedebrauwer@gmail.com>
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4 * Copyright 2012 Luis Felipe Strano Moraes <lfelipe@profusion.mobi>
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5 * Copyright 2013 Jeroen van Rijn <jvrnix@gmail.com>
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6
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7
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8 USE_UPTIME(NEWTOY(uptime, NULL, TOYFLAG_USR|TOYFLAG_BIN))
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9
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10 config UPTIME
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11 bool "uptime"
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12 default y
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13 depends on TOYBOX_UTMPX
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14 help
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15 usage: uptime
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16
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17 Tell how long the system has been running and the system load
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18 averages for the past 1, 5 and 15 minutes.
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19 */
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20
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21 #include "toys.h"
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22
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23 void uptime_main(void)
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24 {
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25 struct sysinfo info;
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26 time_t tmptime;
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27 struct tm * now;
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28 unsigned int days, hours, minutes;
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29 struct utmpx *entry;
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30 int users = 0;
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31
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32 // Obtain the data we need.
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33 sysinfo(&info);
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34 time(&tmptime);
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35 now = localtime(&tmptime);
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36
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37 // Obtain info about logged on users
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38 setutxent();
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39 while ((entry = getutxent())) if (entry->ut_type == USER_PROCESS) users++;
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40 endutxent();
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41
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42 // Time
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43 xprintf(" %02d:%02d:%02d up ", now->tm_hour, now->tm_min, now->tm_sec);
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44 // Uptime
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45 info.uptime /= 60;
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46 minutes = info.uptime%60;
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47 info.uptime /= 60;
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48 hours = info.uptime%24;
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49 days = info.uptime/24;
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50 if (days) xprintf("%d day%s, ", days, (days!=1)?"s":"");
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51 if (hours) xprintf("%2d:%02d, ", hours, minutes);
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52 else printf("%d min, ", minutes);
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53 printf(" %d user%s, ", users, (users!=1) ? "s" : "");
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54 printf(" load average: %.02f, %.02f, %.02f\n", info.loads[0]/65536.0,
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55 info.loads[1]/65536.0, info.loads[2]/65536.0);
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56 }