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Use getloadavg() instead of using /proc, patch by Baptiste Daroussin

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This commit is contained in:
Michael Stapelberg 2009-07-22 00:09:32 +02:00
parent bd3f63428a
commit bb50e22fd3
1 changed files with 10 additions and 14 deletions
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24
src/get_load.c
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@ -1,25 +1,21 @@
// vim:ts=8:expandtab
#include "i3status.h"
#include <err.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
const char *get_load() {
static char part[512];
/* Get load */
#ifdef LINUX
slurp("/proc/loadavg", part, sizeof(part));
*skip_character(part, ' ', 3) = '\0';
#if defined(__FreeBSD__) || defined(linux) || defined(__OpenBSD__) || defined(__NetBSD__) || defined(__APPLE__) || defined(sun)
double loadavg[3];
if (getloadavg(loadavg, 3) == -1)
errx(-1, "getloadavg() failed\n");
(void)snprintf(part, sizeof(part), "%1.2f %1.2f %1.2f", loadavg[0], loadavg[1], loadavg[2]);
#else
/* TODO: correctly check for NetBSD, check if it works the same on *BSD */
struct loadavg load;
size_t length = sizeof(struct loadavg);
int mib[2] = { CTL_VM, VM_LOADAVG };
if (sysctl(mib, 2, &load, &length, NULL, 0) < 0)
die("Could not sysctl({ CTL_VM, VM_LOADAVG })\n");
double scale = load.fscale;
(void)snprintf(part, sizeof(part), "%.02f %.02f %.02f",
(double)load.ldavg[0] / scale,
(double)load.ldavg[1] / scale,
(double)load.ldavg[2] / scale);
part[0] = '\0';
#endif
return part;