slstatus/components/disk.c
Laslo Hunhold 46c4540dd2 Implement fmt_human_2() and fmt_human_10()
These functions take the raw number and a unit and automatically
print it out "scaled down" to a proper SI-prefix, for powers of 2
and 10 respectively.

Apply them to the 2-power cases and keep the 10-power for a later
commit.
2018-05-19 22:58:21 +02:00

60 lines
1 KiB
C

/* See LICENSE file for copyright and license details. */
#include <errno.h>
#include <stdio.h>
#include <string.h>
#include <sys/statvfs.h>
#include "../util.h"
const char *
disk_free(const char *mnt)
{
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
warn("statvfs '%s':", mnt);
return NULL;
}
return fmt_human_2(fs.f_frsize * fs.f_bavail, "B");
}
const char *
disk_perc(const char *mnt)
{
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
warn("statvfs '%s':", mnt);
return NULL;
}
return bprintf("%d%%", (int)(100 *
(1.0f - ((float)fs.f_bavail / (float)fs.f_blocks))));
}
const char *
disk_total(const char *mnt)
{
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
warn("statvfs '%s':", mnt);
return NULL;
}
return fmt_human_2(fs.f_frsize * fs.f_blocks, "B");
}
const char *
disk_used(const char *mnt)
{
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
warn("statvfs '%s':", mnt);
return NULL;
}
return fmt_human_2(fs.f_frsize * (fs.f_blocks - fs.f_bfree), "B");
}