mirror of
https://github.com/prometheus/node_exporter.git
synced 2024-12-03 15:31:05 +01:00
54 lines
1.5 KiB
Go
54 lines
1.5 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 !notime
|
|
|
|
package collector
|
|
|
|
import (
|
|
"time"
|
|
|
|
"github.com/go-kit/kit/log"
|
|
"github.com/go-kit/kit/log/level"
|
|
"github.com/prometheus/client_golang/prometheus"
|
|
)
|
|
|
|
type timeCollector struct {
|
|
desc *prometheus.Desc
|
|
logger log.Logger
|
|
}
|
|
|
|
func init() {
|
|
registerCollector("time", defaultEnabled, NewTimeCollector)
|
|
}
|
|
|
|
// NewTimeCollector returns a new Collector exposing the current system time in
|
|
// seconds since epoch.
|
|
func NewTimeCollector(logger log.Logger) (Collector, error) {
|
|
return &timeCollector{
|
|
desc: prometheus.NewDesc(
|
|
namespace+"_time_seconds",
|
|
"System time in seconds since epoch (1970).",
|
|
nil, nil,
|
|
),
|
|
logger: logger,
|
|
}, nil
|
|
}
|
|
|
|
func (c *timeCollector) Update(ch chan<- prometheus.Metric) error {
|
|
now := float64(time.Now().UnixNano()) / 1e9
|
|
level.Debug(c.logger).Log("msg", "Return time", "now", now)
|
|
ch <- prometheus.MustNewConstMetric(c.desc, prometheus.GaugeValue, now)
|
|
return nil
|
|
}
|