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/*
htop - UptimeMeter.c
(C) 2004-2011 Hisham H. Muhammad
Released under the GNU GPL, see the COPYING file
in the source distribution for its full text.
*/
#include "config.h"
#include "UptimeMeter.h"
#include "Platform.h"
#include "CRT.h"
#ifdef HAVE_UTMPX
#include <utmpx.h>
#endif
#if defined HAVE_UTMPX || defined HAVE_CLOCK_GETTIME
#include <time.h>
#endif
/*{
#include "Meter.h"
}*/
int UptimeMeter_attributes[] = {
UPTIME
};
static int UptimeMeter_getUptimeFromUtmpx() {
#ifdef HAVE_UTMPX
time_t boot_time = -1;
time_t curr_time = time(NULL);
struct utmpx *utx;
setutxent();
while ((utx = getutxent())) {
if(utx->ut_type == BOOT_TIME) {
boot_time = utx->ut_tv.tv_sec;
break;
}
}
endutxent();
return boot_time == -1 ? -1 : curr_time - boot_time;
#else
return -1;
#endif
}
#ifdef HAVE_CLOCK_GETTIME
// CLOCK_UPTIME excludes suspend time, available since kFreeBSD 7.0
// CLOCK_BOOTTIME includes suspend time, available since Linux 2.6.39
// CLOCK_MONOTONIC_RAW excludes suspend time, available since Linux 2.6.28
#ifndef CLOCK_UPTIME
#ifdef CLOCK_BOOTTIME
#define CLOCK_UPTIME CLOCK_BOOTTIME
#elif defined CLOCK_MONOTONIC_RAW && defined __linux__
#define CLOCK_UPTIME CLOCK_MONOTONIC_RAW
#endif
#endif
#endif
static int UptimeMeter_getUptime() {
int totalseconds = Platform_getUptime();
if(totalseconds != -1) return totalseconds;
#if defined HAVE_CLOCK_GETTIME && defined CLOCK_UPTIME
struct timespec t;
if(clock_gettime(CLOCK_UPTIME, &t) == 0) return t.tv_sec;
#endif
return UptimeMeter_getUptimeFromUtmpx();
}
static void UptimeMeter_updateValues(Meter* this, char* buffer, int len) {
int totalseconds = UptimeMeter_getUptime();
if (totalseconds == -1) {
xSnprintf(buffer, len, "(unknown)");
return;
}
int seconds = totalseconds % 60;
int minutes = (totalseconds/60) % 60;
int hours = (totalseconds/3600) % 24;
int days = (totalseconds/86400);
this->values[0] = days;
if (days > this->total) {
this->total = days;
}
char daysbuf[32];
if (days > 100) {
xSnprintf(daysbuf, sizeof(daysbuf), "%d days(!), ", days);
} else if (days > 1) {
xSnprintf(daysbuf, sizeof(daysbuf), "%d days, ", days);
} else if (days == 1) {
xSnprintf(daysbuf, sizeof(daysbuf), "1 day, ");
} else {
daysbuf[0] = '\0';
}
xSnprintf(buffer, len, "%s%02d:%02d:%02d", daysbuf, hours, minutes, seconds);
}
MeterClass UptimeMeter_class = {
.super = {
.extends = Class(Meter),
.delete = Meter_delete
},
.updateValues = UptimeMeter_updateValues,
.defaultMode = TEXT_METERMODE,
.maxItems = 1,
.total = 100.0,
.attributes = UptimeMeter_attributes,
.name = "Uptime",
.uiName = "Uptime",
.caption = "Uptime: "
};