components/disk.c
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/* 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) {
fprintf(stderr, "statvfs '%s': %s\n", mnt, strerror(errno));
return NULL;
}
return bprintf("%f", (float)fs.f_bsize * (float)fs.f_bfree / 1024 / 1024 / 1024);
}
const char *
disk_perc(const char *mnt)
{
int perc;
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
fprintf(stderr, "statvfs '%s': %s\n", mnt, strerror(errno));
return NULL;
}
perc = 100 * (1.0f - ((float)fs.f_bfree / (float)fs.f_blocks));
return bprintf("%d", perc);
}
const char *
disk_total(const char *mnt)
{
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
fprintf(stderr, "statvfs '%s': %s\n", mnt, strerror(errno));
return NULL;
}
return bprintf("%f", (float)fs.f_bsize * (float)fs.f_blocks / 1024 / 1024 / 1024);
}
const char *
disk_used(const char *mnt)
{
struct statvfs fs;
if (statvfs(mnt, &fs) < 0) {
fprintf(stderr, "statvfs '%s': %s\n", mnt, strerror(errno));
return NULL;
}
return bprintf("%f", (float)fs.f_bsize * ((float)fs.f_blocks - (float)fs.f_bfree) / 1024 / 1024 / 1024);
}