forked from mirror/client_golang
85 lines
2.3 KiB
Go
85 lines
2.3 KiB
Go
// Copyright 2015 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 linux,cgo plan9,cgo solaris,cgo
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package prometheus
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import "github.com/prometheus/procfs"
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func processCollectSupported() bool {
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if _, err := procfs.NewStat(); err == nil {
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return true
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}
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return false
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}
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func (c *processCollector) processCollect(ch chan<- Metric) {
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pid, err := c.pidFn()
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if err != nil {
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c.reportCollectErrors(ch, err)
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return
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}
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p, err := procfs.NewProc(pid)
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if err != nil {
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c.reportCollectErrors(ch, err)
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return
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}
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if stat, err := p.NewStat(); err != nil {
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// Report collect errors for metrics depending on stat.
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ch <- NewInvalidMetric(c.vsize.Desc(), err)
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ch <- NewInvalidMetric(c.rss.Desc(), err)
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ch <- NewInvalidMetric(c.startTime.Desc(), err)
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ch <- NewInvalidMetric(c.cpuTotal.Desc(), err)
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} else {
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c.cpuTotal.Set(stat.CPUTime())
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ch <- c.cpuTotal
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c.vsize.Set(float64(stat.VirtualMemory()))
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ch <- c.vsize
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c.rss.Set(float64(stat.ResidentMemory()))
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ch <- c.rss
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if startTime, err := stat.StartTime(); err != nil {
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ch <- NewInvalidMetric(c.startTime.Desc(), err)
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} else {
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c.startTime.Set(startTime)
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ch <- c.startTime
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}
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}
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if fds, err := p.FileDescriptorsLen(); err != nil {
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ch <- NewInvalidMetric(c.openFDs.Desc(), err)
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} else {
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c.openFDs.Set(float64(fds))
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ch <- c.openFDs
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}
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if limits, err := p.NewLimits(); err != nil {
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ch <- NewInvalidMetric(c.maxFDs.Desc(), err)
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} else {
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c.maxFDs.Set(float64(limits.OpenFiles))
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ch <- c.maxFDs
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}
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}
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func (c *processCollector) reportCollectErrors(ch chan<- Metric, err error) {
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ch <- NewInvalidMetric(c.cpuTotal.Desc(), err)
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ch <- NewInvalidMetric(c.openFDs.Desc(), err)
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ch <- NewInvalidMetric(c.maxFDs.Desc(), err)
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ch <- NewInvalidMetric(c.vsize.Desc(), err)
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ch <- NewInvalidMetric(c.rss.Desc(), err)
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ch <- NewInvalidMetric(c.startTime.Desc(), err)
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}
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