mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-12-20 07:26:08 +01:00
77 lines
2.1 KiB
Go
77 lines
2.1 KiB
Go
// Copyright 2015 The Prometheus Authors
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
// +build freebsd openbsd
|
|
// +build !nofilesystem
|
|
|
|
package collector
|
|
|
|
import (
|
|
"errors"
|
|
"unsafe"
|
|
|
|
"github.com/prometheus/common/log"
|
|
)
|
|
|
|
/*
|
|
#include <sys/param.h>
|
|
#include <sys/ucred.h>
|
|
#include <sys/mount.h>
|
|
#include <stdio.h>
|
|
*/
|
|
import "C"
|
|
|
|
const (
|
|
defIgnoredMountPoints = "^/(dev)($|/)"
|
|
MNT_RDONLY = 0x1
|
|
)
|
|
|
|
// 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])
|
|
|
|
var ro float64
|
|
if mnt[i].f_flags & MNT_RDONLY {
|
|
ro = 1
|
|
}
|
|
|
|
labelValues := []string{device, mountpoint, fstype}
|
|
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),
|
|
ro: ro,
|
|
})
|
|
}
|
|
return stats, nil
|
|
}
|