vendor perflib in perfcounterscraper (#38859)

<!--Ex. Fixing a bug - Describe the bug and how this fixes the issue.
Ex. Adding a feature - Explain what this achieves.-->
#### Description
This PR vendors the `perflib` package from the latest commit of
[`windows_exporter`](https://github.com/prometheus-community/windows_exporter).
Some constants had to be copied from related packages in
`windows_exporter` to make it work. Original license attribution to
Prometheus Authors under MIT license is included in this copy.

<!-- Issue number (e.g. #1234) or full URL to issue, if applicable. -->
#### Link to tracking issue
#38858

<!--Describe what testing was performed and which tests were added.-->
#### Testing
Ran tests locally, running integration tests in CI.

<!--Describe the documentation added.-->
#### Documentation

<!--Please delete paragraphs that you did not use before submitting.-->

---------

Co-authored-by: Sam DeHaan <[email protected]>

Author: braydonk

connector/datadogconnector/go.sum

@@ -354,7 +354,6 @@ require (
 	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
-	github.com/prometheus-community/windows_exporter v0.27.2 // indirect
 	github.com/prometheus/alertmanager v0.27.0 // indirect
 	github.com/prometheus/client_golang v1.21.1 // indirect
 	github.com/prometheus/client_model v0.6.1 // indirect

exporter/datadogexporter/go.mod

@@ -323,7 +323,6 @@ require (
 	github.com/planetscale/vtprotobuf v0.6.1-0.20240319094008-0393e58bdf10 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
-	github.com/prometheus-community/windows_exporter v0.27.2 // indirect
 	github.com/prometheus/alertmanager v0.27.0 // indirect
 	github.com/prometheus/client_golang v1.21.1 // indirect
 	github.com/prometheus/client_model v0.6.1 // indirect

exporter/datadogexporter/go.sum

@@ -8,7 +8,6 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/filter v0.123.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/experimentalmetricmetadata v0.123.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/pdatatest v0.123.0
-	github.com/prometheus-community/windows_exporter v0.27.2
 	github.com/prometheus/procfs v0.16.0
 	github.com/shirou/gopsutil/v4 v4.25.3
 	github.com/stretchr/testify v1.10.0
@@ -51,8 +50,6 @@ require (
 	github.com/docker/go-units v0.5.0 // indirect
 	github.com/ebitengine/purego v0.8.2 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
-	github.com/go-kit/log v0.2.1 // indirect
-	github.com/go-logfmt/logfmt v0.5.1 // indirect
 	github.com/go-logr/logr v1.4.2 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.3.0 // indirect
@@ -63,7 +60,7 @@ require (
 	github.com/hashicorp/go-version v1.7.0 // indirect
 	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/klauspost/compress v1.17.11 // indirect
+	github.com/klauspost/compress v1.18.0 // indirect
 	github.com/knadh/koanf/maps v0.1.2 // indirect
 	github.com/knadh/koanf/providers/confmap v0.1.0 // indirect
 	github.com/knadh/koanf/v2 v2.1.2 // indirect

exporter/datadogexporter/integrationtest/go.mod

@@ -1,7 +1,7 @@
 // Copyright The OpenTelemetry Authors
 // SPDX-License-Identifier: Apache-2.0
 
-// Package perfcounters is a thin wrapper around
+// Package perfcounters is a thin wrapper around code vendored from
 // https://pkg.go.dev/github.com/prometheus-community/windows_exporter/pkg/perflib that
 // provides functions to scrape raw performance counter data, without
 // calculating rates or formatting them, from the registry.

exporter/datadogexporter/integrationtest/go.sum

@@ -10,9 +10,8 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/prometheus-community/windows_exporter/pkg/perflib"
-
 	"github.com/open-telemetry/opentelemetry-collector-contrib/internal/filter/filterset"
+	"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/hostmetricsreceiver/internal/perfcounters/third_party/perflib"
 )
 
 const totalInstanceName = "_Total"
@@ -67,7 +66,7 @@ func (p *PerfLibScraper) Initialize(objects ...string) error {
 }
 
 func (p *PerfLibScraper) Scrape() (PerfDataCollection, error) {
-	objects, err := perflib.QueryPerformanceData(p.objectIndices)
+	objects, err := perflib.QueryPerformanceData(p.objectIndices, "")
 	if err != nil {
 		return nil, fmt.Errorf("failed to query performance data: %w", err)
 	}

receiver/hostmetricsreceiver/go.mod

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2018 Leopold Schabel / The perflib_exporter authors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

receiver/hostmetricsreceiver/go.sum

@@ -0,0 +1,177 @@
+//go:build windows
+
+package perflib // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/hostmetricsreceiver/internal/perfcounters/third_party/perflib"
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+)
+
+type Collector struct {
+	object string
+	query  string
+
+	counters       map[string]Counter
+	nameIndexValue int
+}
+
+type Counter struct {
+	Name      string
+	Desc      string
+	Instances map[string]uint32
+	Type      uint32
+	Frequency float64
+
+	FieldIndexValue       int
+	FieldIndexSecondValue int
+}
+
+func NewCollector[T any](object string, _ []string) (*Collector, error) {
+	collector := &Collector{
+		object:         object,
+		query:          MapCounterToIndex(object),
+		nameIndexValue: -1,
+		counters:       make(map[string]Counter),
+	}
+
+	var values [0]T
+	valueType := reflect.TypeOf(values).Elem()
+
+	if f, ok := valueType.FieldByName("Name"); ok {
+		if f.Type.Kind() == reflect.String {
+			collector.nameIndexValue = f.Index[0]
+		}
+	}
+
+	for _, f := range reflect.VisibleFields(valueType) {
+		counterName, ok := f.Tag.Lookup("perfdata")
+		if !ok {
+			continue
+		}
+
+		var counter Counter
+		if counter, ok = collector.counters[counterName]; !ok {
+			counter = Counter{
+				Name:                  counterName,
+				FieldIndexSecondValue: -1,
+				FieldIndexValue:       -1,
+			}
+		}
+
+		if strings.HasSuffix(counterName, ",secondvalue") {
+			counterName = strings.TrimSuffix(counterName, ",secondvalue")
+
+			counter.FieldIndexSecondValue = f.Index[0]
+		} else {
+			counter.FieldIndexValue = f.Index[0]
+		}
+
+		collector.counters[counterName] = counter
+	}
+
+	var collectValues []T
+
+	if err := collector.Collect(&collectValues); err != nil {
+		return nil, fmt.Errorf("failed to collect initial data: %w", err)
+	}
+
+	return collector, nil
+}
+
+func (c *Collector) Describe() map[string]string {
+	return map[string]string{}
+}
+
+func (c *Collector) Collect(data any) error {
+	dv := reflect.ValueOf(data)
+	if dv.Kind() != reflect.Ptr || dv.IsNil() {
+		return ErrInvalidEntityType
+	}
+
+	dv = dv.Elem()
+
+	elemType := dv.Type().Elem()
+	elemValue := reflect.ValueOf(reflect.New(elemType).Interface()).Elem()
+
+	if dv.Kind() != reflect.Slice || elemType.Kind() != reflect.Struct {
+		return ErrInvalidEntityType
+	}
+
+	perfObjects, err := QueryPerformanceData(c.query, c.object)
+	if err != nil {
+		return fmt.Errorf("QueryPerformanceData: %w", err)
+	}
+
+	if len(perfObjects) == 0 || perfObjects[0] == nil || len(perfObjects[0].Instances) == 0 {
+		return nil
+	}
+
+	if dv.Len() != 0 {
+		dv.Set(reflect.MakeSlice(dv.Type(), 0, len(perfObjects[0].Instances)))
+	}
+
+	dv.Clear()
+
+	for _, perfObject := range perfObjects {
+		if perfObject.Name != c.object {
+			continue
+		}
+
+		for _, perfInstance := range perfObject.Instances {
+			instanceName := perfInstance.Name
+			if strings.HasSuffix(instanceName, "_Total") {
+				continue
+			}
+
+			if instanceName == "" || instanceName == "*" {
+				instanceName = InstanceEmpty
+			}
+
+			if c.nameIndexValue != -1 {
+				elemValue.Field(c.nameIndexValue).SetString(instanceName)
+			}
+
+			dv.Set(reflect.Append(dv, elemValue))
+			index := dv.Len() - 1
+
+			for _, perfCounter := range perfInstance.Counters {
+				if perfCounter.Def.IsBaseValue && !perfCounter.Def.IsNanosecondCounter {
+					continue
+				}
+
+				counter, ok := c.counters[perfCounter.Def.Name]
+				if !ok {
+					continue
+				}
+
+				switch perfCounter.Def.CounterType {
+				case PERF_ELAPSED_TIME:
+					dv.Index(index).
+						Field(counter.FieldIndexValue).
+						SetFloat(float64((perfCounter.Value - WindowsEpoch) / perfObject.Frequency))
+				case PERF_100NSEC_TIMER, PERF_PRECISION_100NS_TIMER:
+					dv.Index(index).
+						Field(counter.FieldIndexValue).
+						SetFloat(float64(perfCounter.Value) * TicksToSecondScaleFactor)
+				default:
+					if counter.FieldIndexSecondValue != -1 {
+						dv.Index(index).
+							Field(counter.FieldIndexSecondValue).
+							SetFloat(float64(perfCounter.SecondValue))
+					}
+
+					if counter.FieldIndexValue != -1 {
+						dv.Index(index).
+							Field(counter.FieldIndexValue).
+							SetFloat(float64(perfCounter.Value))
+					}
+				}
+			}
+		}
+	}
+
+	return nil
+}
+
+func (c *Collector) Close() {}

receiver/hostmetricsreceiver/internal/perfcounters/doc.go

@@ -0,0 +1,7 @@
+//go:build windows
+
+package perflib // import "github.com/open-telemetry/opentelemetry-collector-contrib/receiver/hostmetricsreceiver/internal/perfcounters/third_party/perflib"
+
+import "errors"
+
+var ErrInvalidEntityType = errors.New("invalid entity type")