components/disk.c

   1 /* See LICENSE file for copyright and license details. */
   2 #include <err.h>
   3 #include <stdio.h>
   4 #include <sys/statvfs.h>
   5
   6 #include "../util.h"
   7
   8 const char *
   9 disk_free(const char *mnt)
  10 {
  11         struct statvfs fs;
  12
  13         if (statvfs(mnt, &fs) < 0) {
  14                 warn("Failed to get filesystem info");
  15                 return NULL;
  16         }
  17
  18         return bprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
  19 }
  20
  21 const char *
  22 disk_perc(const char *mnt)
  23 {
  24         int perc;
  25         struct statvfs fs;
  26
  27         if (statvfs(mnt, &fs) < 0) {
  28                 warn("Failed to get filesystem info");
  29                 return NULL;
  30         }
  31
  32         perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks));
  33
  34         return bprintf("%d", perc);
  35 }
  36
  37 const char *
  38 disk_total(const char *mnt)
  39 {
  40         struct statvfs fs;
  41
  42         if (statvfs(mnt, &fs) < 0) {
  43                 warn("Failed to get filesystem info");
  44                 return NULL;
  45         }
  46
  47         return bprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
  48 }
  49
  50 const char *
  51 disk_used(const char *mnt)
  52 {
  53         struct statvfs fs;
  54
  55         if (statvfs(mnt, &fs) < 0) {
  56                 warn("Failed to get filesystem info");
  57                 return NULL;
  58         }
  59
  60         return bprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
  61 }