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
|
// Copyright 2018 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 dragonfly openbsd netbsd darwin
// +build !noboottime
package collector
import (
"github.com/go-kit/kit/log"
"github.com/prometheus/client_golang/prometheus"
)
type bootTimeCollector struct {
boottime bsdSysctl
logger log.Logger
}
func init() {
registerCollector("boottime", defaultEnabled, newBootTimeCollector)
}
// newBootTimeCollector returns a new Collector exposing system boot time on BSD systems.
func newBootTimeCollector(logger log.Logger) (Collector, error) {
return &bootTimeCollector{
boottime: bsdSysctl{
name: "boot_time_seconds",
description: "Unix time of last boot, including microseconds.",
mib: "kern.boottime",
dataType: bsdSysctlTypeStructTimeval,
},
logger: logger,
}, nil
}
// Update pushes boot time onto ch
func (c *bootTimeCollector) Update(ch chan<- prometheus.Metric) error {
v, err := c.boottime.Value()
if err != nil {
return err
}
ch <- prometheus.MustNewConstMetric(
prometheus.NewDesc(
prometheus.BuildFQName(namespace, "", c.boottime.name),
c.boottime.description,
nil, nil,
), prometheus.GaugeValue, v)
return nil
}
|
