/
process_scraper_linux.go
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/
process_scraper_linux.go
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// Copyright The OpenTelemetry 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 linux
package processscraper
import (
"github.com/shirou/gopsutil/cpu"
"go.opentelemetry.io/collector/consumer/pdata"
"go.opentelemetry.io/collector/receiver/hostmetricsreceiver/internal/metadata"
)
const cpuStatesLen = 3
func appendCPUTimeStateDataPoints(ddps pdata.DoubleDataPointSlice, startTime, now pdata.TimestampUnixNano, cpuTime *cpu.TimesStat) {
initializeCPUTimeDataPoint(ddps.At(0), startTime, now, cpuTime.User, metadata.LabelProcessState.User)
initializeCPUTimeDataPoint(ddps.At(1), startTime, now, cpuTime.System, metadata.LabelProcessState.System)
initializeCPUTimeDataPoint(ddps.At(2), startTime, now, cpuTime.Iowait, metadata.LabelProcessState.Wait)
}
func initializeCPUTimeDataPoint(dataPoint pdata.DoubleDataPoint, startTime, now pdata.TimestampUnixNano, value float64, stateLabel string) {
labelsMap := dataPoint.LabelsMap()
labelsMap.Insert(metadata.Labels.ProcessState, stateLabel)
dataPoint.SetStartTime(startTime)
dataPoint.SetTimestamp(now)
dataPoint.SetValue(value)
}
func getProcessExecutable(proc processHandle) (*executableMetadata, error) {
name, err := proc.Name()
if err != nil {
return nil, err
}
exe, err := proc.Exe()
if err != nil {
return nil, err
}
executable := &executableMetadata{name: name, path: exe}
return executable, nil
}
func getProcessCommand(proc processHandle) (*commandMetadata, error) {
cmdline, err := proc.CmdlineSlice()
if err != nil {
return nil, err
}
var cmd string
if len(cmdline) > 0 {
cmd = cmdline[0]
}
command := &commandMetadata{command: cmd, commandLineSlice: cmdline}
return command, nil
}