components/disk.c

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