Ejemplo n.º 1
0
// Expose filesystem fullness.
func (c *filesystemCollector) GetStats() (stats []filesystemStats, err error) {
	var mntbuf *C.struct_statfs
	count := C.getmntinfo(&mntbuf, C.MNT_NOWAIT)
	if count == 0 {
		return nil, errors.New("getmntinfo() failed")
	}

	mnt := (*[1 << 30]C.struct_statfs)(unsafe.Pointer(mntbuf))
	stats = []filesystemStats{}
	for i := 0; i < int(count); i++ {
		name := C.GoString(&mnt[i].f_mntonname[0])
		if c.ignoredMountPointsPattern.MatchString(name) {
			log.Debugf("Ignoring mount point: %s", name)
			continue
		}
		labelValues := []string{name}
		stats = append(stats, filesystemStats{
			labelValues: labelValues,
			size:        float64(mnt[i].f_blocks) * float64(mnt[i].f_bsize),
			free:        float64(mnt[i].f_bfree) * float64(mnt[i].f_bsize),
			avail:       float64(mnt[i].f_bavail) * float64(mnt[i].f_bsize),
			files:       float64(mnt[i].f_files),
			filesFree:   float64(mnt[i].f_ffree),
		})
	}
	return stats, nil
}
Ejemplo n.º 2
0
// Expose filesystem fullness.
func (c *filesystemCollector) Update(ch chan<- prometheus.Metric) (err error) {
	var mntbuf *C.struct_statfs
	count := C.getmntinfo(&mntbuf, C.MNT_NOWAIT)
	if count == 0 {
		return errors.New("getmntinfo() failed")
	}

	mnt := (*[1 << 30]C.struct_statfs)(unsafe.Pointer(mntbuf))
	for i := 0; i < int(count); i++ {
		name := C.GoString(&mnt[i].f_mntonname[0])
		if c.ignoredMountPointsPattern.MatchString(name) {
			log.Debugf("Ignoring mount point: %s", name)
			continue
		}
		c.size.WithLabelValues(name).Set(float64(mnt[i].f_blocks) * float64(mnt[i].f_bsize))
		c.free.WithLabelValues(name).Set(float64(mnt[i].f_bfree) * float64(mnt[i].f_bsize))
		c.avail.WithLabelValues(name).Set(float64(mnt[i].f_bavail) * float64(mnt[i].f_bsize))
		c.files.WithLabelValues(name).Set(float64(mnt[i].f_files))
		c.filesFree.WithLabelValues(name).Set(float64(mnt[i].f_ffree))
	}

	c.size.Collect(ch)
	c.free.Collect(ch)
	c.avail.Collect(ch)
	c.files.Collect(ch)
	c.filesFree.Collect(ch)
	return err
}
Ejemplo n.º 3
0
// Expose filesystem fullness.
func (c *filesystemCollector) GetStats() (stats []filesystemStats, err error) {
	var mntbuf *C.struct_statfs
	count := C.getmntinfo(&mntbuf, C.MNT_NOWAIT)
	if count == 0 {
		return nil, errors.New("getmntinfo() failed")
	}

	mnt := (*[1 << 20]C.struct_statfs)(unsafe.Pointer(mntbuf))
	stats = []filesystemStats{}
	for i := 0; i < int(count); i++ {
		mountpoint := C.GoString(&mnt[i].f_mntonname[0])
		if c.ignoredMountPointsPattern.MatchString(mountpoint) {
			log.Debugf("Ignoring mount point: %s", mountpoint)
			continue
		}

		device := C.GoString(&mnt[i].f_mntfromname[0])
		fstype := C.GoString(&mnt[i].f_fstypename[0])
		if c.ignoredFSTypesPattern.MatchString(fstype) {
			log.Debugf("Ignoring fs type: %s", fstype)
			continue
		}

		var ro float64
		if (mnt[i].f_flags & MNT_RDONLY) != 0 {
			ro = 1
		}

		stats = append(stats, filesystemStats{
			labels: filesystemLabels{
				device:     device,
				mountPoint: mountpoint,
				fsType:     fstype,
			},
			size:      float64(mnt[i].f_blocks) * float64(mnt[i].f_bsize),
			free:      float64(mnt[i].f_bfree) * float64(mnt[i].f_bsize),
			avail:     float64(mnt[i].f_bavail) * float64(mnt[i].f_bsize),
			files:     float64(mnt[i].f_files),
			filesFree: float64(mnt[i].f_ffree),
			ro:        ro,
		})
	}
	return stats, nil
}
Ejemplo n.º 4
0
// Parse /proc/self/mountinfo because comparing Dev and ino does not work from bind mounts
func parseMountTable() ([]*MountInfo, error) {
	var rawEntries *C.struct_statfs

	count := int(C.getmntinfo(&rawEntries, C.MNT_WAIT))
	if count == 0 {
		return nil, fmt.Errorf("Failed to call getmntinfo")
	}

	var entries []C.struct_statfs
	header := (*reflect.SliceHeader)(unsafe.Pointer(&entries))
	header.Cap = count
	header.Len = count
	header.Data = uintptr(unsafe.Pointer(rawEntries))

	var out []*MountInfo
	for _, entry := range entries {
		var mountinfo MountInfo
		mountinfo.Mountpoint = C.GoString(&entry.f_mntonname[0])
		out = append(out, &mountinfo)
	}
	return out, nil
}