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https://github.com/prometheus/node_exporter.git
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8146998945
* Update procfs vendor to pull in github.com/prometheus/procfs/pull/165 * Update mountstats collector to use new types. * Rollover counter automatically to avoid float64 accuracy issues. * Update e2e test. Signed-off-by: Ben Kochie <superq@gmail.com>
77 lines
2.0 KiB
Go
77 lines
2.0 KiB
Go
// Copyright 2019 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build !windows
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package sysfs
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import (
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"path/filepath"
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"strings"
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"github.com/prometheus/procfs/internal/util"
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)
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// ClockSource contains metrics related to the clock source
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type ClockSource struct {
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Name string
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Available []string
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Current string
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}
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// ClockSources returns clocksource information including current and available clocksources
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// read from '/sys/devices/system/clocksource'
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func (fs FS) ClockSources() ([]ClockSource, error) {
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clocksourcePaths, err := filepath.Glob(fs.sys.Path("devices/system/clocksource/clocksource[0-9]*"))
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if err != nil {
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return nil, err
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}
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clocksources := make([]ClockSource, len(clocksourcePaths))
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for i, clocksourcePath := range clocksourcePaths {
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clocksourceName := strings.TrimPrefix(filepath.Base(clocksourcePath), "clocksource")
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clocksource, err := parseClocksource(clocksourcePath)
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if err != nil {
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return nil, err
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}
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clocksource.Name = clocksourceName
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clocksources[i] = *clocksource
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}
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return clocksources, nil
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}
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func parseClocksource(clocksourcePath string) (*ClockSource, error) {
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stringFiles := []string{
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"available_clocksource",
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"current_clocksource",
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}
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stringOut := make([]string, len(stringFiles))
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var err error
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for i, f := range stringFiles {
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stringOut[i], err = util.SysReadFile(filepath.Join(clocksourcePath, f))
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if err != nil {
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return &ClockSource{}, err
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}
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}
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return &ClockSource{
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Available: strings.Fields(stringOut[0]),
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Current: stringOut[1],
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}, nil
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}
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