70 lines
1.7 KiB
Go
70 lines
1.7 KiB
Go
// 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.
|
|
|
|
//go:build !noboottime
|
|
// +build !noboottime
|
|
|
|
package collector
|
|
|
|
import (
|
|
"github.com/go-kit/log"
|
|
"github.com/illumos/go-kstat"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
)
|
|
|
|
type bootTimeCollector struct {
|
|
boottime typedDesc
|
|
logger log.Logger
|
|
}
|
|
|
|
func init() {
|
|
registerCollector("boottime", defaultEnabled, newBootTimeCollector)
|
|
}
|
|
|
|
func newBootTimeCollector(logger log.Logger) (Collector, error) {
|
|
return &bootTimeCollector{
|
|
boottime: typedDesc{
|
|
prometheus.NewDesc(
|
|
prometheus.BuildFQName(namespace, "", "boot_time_seconds"),
|
|
"Unix time of last boot, including microseconds.",
|
|
nil, nil,
|
|
), prometheus.GaugeValue},
|
|
logger: logger,
|
|
}, nil
|
|
}
|
|
|
|
// newBootTimeCollector returns a new Collector exposing system boot time on Solaris systems.
|
|
// Update pushes boot time onto ch
|
|
func (c *bootTimeCollector) Update(ch chan<- prometheus.Metric) error {
|
|
tok, err := kstat.Open()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
defer tok.Close()
|
|
|
|
ks, err := tok.Lookup("unix", 0, "system_misc")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
v, err := ks.GetNamed("boot_time")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
ch <- c.boottime.mustNewConstMetric(float64(v.UintVal))
|
|
|
|
return nil
|
|
}
|