57 lines
1.3 KiB
Go
57 lines
1.3 KiB
Go
// +build !nofilesystem
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package collector
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import (
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"errors"
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"regexp"
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"unsafe"
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"github.com/prometheus/log"
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)
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/*
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#include <sys/param.h>
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#include <sys/ucred.h>
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#include <sys/mount.h>
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#include <stdio.h>
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*/
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import "C"
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const (
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defIgnoredMountPoints = "^/(dev)($|/)"
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)
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var (
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filesystemLabelNames = []string{"filesystem"}
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)
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// Expose filesystem fullness.
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func (c *filesystemCollector) GetStats() (stats []filesystemStats, err error) {
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var mntbuf *C.struct_statfs
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count := C.getmntinfo(&mntbuf, C.MNT_NOWAIT)
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if count == 0 {
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return nil, errors.New("getmntinfo() failed")
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}
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mnt := (*[1 << 30]C.struct_statfs)(unsafe.Pointer(mntbuf))
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stats = []filesystemStats{}
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for i := 0; i < int(count); i++ {
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name := C.GoString(&mnt[i].f_mntonname[0])
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if c.ignoredMountPointsPattern.MatchString(name) {
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log.Debugf("Ignoring mount point: %s", name)
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continue
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}
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labelValues := []string{name}
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stats = append(stats, filesystemStats{
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labelValues: labelValues,
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size: float64(mnt[i].f_blocks) * float64(mnt[i].f_bsize),
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free: float64(mnt[i].f_bfree) * float64(mnt[i].f_bsize),
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avail: float64(mnt[i].f_bavail) * float64(mnt[i].f_bsize),
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files: float64(mnt[i].f_files),
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filesFree: float64(mnt[i].f_ffree),
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})
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}
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return stats, nil
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}
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