1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
|
// 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 openbsd darwin,amd64 dragonfly
// +build !nofilesystem
package collector
import (
"errors"
"unsafe"
"github.com/go-kit/kit/log/level"
)
/*
#include <sys/param.h>
#include <sys/ucred.h>
#include <sys/mount.h>
#include <stdio.h>
*/
import "C"
const (
defIgnoredMountPoints = "^/(dev)($|/)"
defIgnoredFSTypes = "^devfs$"
readOnly = 0x1 // MNT_RDONLY
)
// 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) {
level.Debug(c.logger).Log("msg", "Ignoring mount point", "mountpoint", mountpoint)
continue
}
device := C.GoString(&mnt[i].f_mntfromname[0])
fstype := C.GoString(&mnt[i].f_fstypename[0])
if c.ignoredFSTypesPattern.MatchString(fstype) {
level.Debug(c.logger).Log("msg", "Ignoring fs type", "type", fstype)
continue
}
var ro float64
if (mnt[i].f_flags & readOnly) != 0 {
ro = 1
}
stats = append(stats, filesystemStats{
labels: filesystemLabels{
device: device,
mountPoint: rootfsStripPrefix(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
}
|
