// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful

	listener        *httpListener // HTTP listener for all 'Addrs' field.
	inShutdown      uint32        // indicates whether the server is in shutdown or not
	requestCount    int32         // counter holds no. of request in progress.
}

// GetRequestCount - returns number of request in progress.
func (srv *Server) GetRequestCount() int {
	return int(atomic.LoadInt32(&srv.requestCount))
}

			labels1[*lp.Name] = *lp.Value
		}
		labels1["le"] = fmt.Sprintf("%.3f", math.Inf(+1))
		metrics = append(metrics, MetricV2{
			Description:    desc,
			VariableLabels: labels1,
			Value:          dtoMetric.Counter.GetValue(),
		})
	}
	return metrics
}

func getBucketTTFBMetric() *MetricsGroupV2 {
	mg := &MetricsGroupV2{
		cacheInterval: 10 * time.Second,
	}

	}

	// Do we have enough data?
	if int64(getDataBlockLen(enBlocks, dataBlocks)) < length {
		return 0, reedsolomon.ErrShortData
	}

	// Counter to decrement total left to write.
	write := length

	// Counter to increment total written.
	var totalWritten int64

	// Write all data blocks to dst.
	for _, block := range enBlocks[:dataBlocks] {
		// Skip blocks until we have reached our offset.

		lambdaMap[targetID.Name] = list
	}

	notify := make([]map[string][]madmin.TargetIDStatus, len(lambdaMap))
	counter := 0
	for key, value := range lambdaMap {
		v := make(map[string][]madmin.TargetIDStatus)
		v[key] = value
		notify[counter] = v
		counter++
	}
	return notify
}

// fetchKMSStatus fetches KMS-related status information.
func fetchKMSStatus() madmin.KMS {

		t.Helper()
		if err != nil {
			t.Fatal(err)
		}
	}

	// Add a version with tiered content, one with local content
	xl := xlMetaV2{}
	counter := 1
	report := func() {
		t.Helper()
		// t.Logf("versions (%d): len = %d", counter, len(xl.versions))
		counter++
	}
	fi := FileInfo{
		Volume:           "volume",
		Name:             "object-name",
		VersionID:        "00000000-0000-0000-0000-000000000001",

	sync.RWMutex
}

// Inc increments the api stats counter.
func (stats *HTTPAPIStats) Inc(api string) {
	if stats == nil {
		return
	}
	stats.Lock()
	defer stats.Unlock()
	if stats.apiStats == nil {
		stats.apiStats = make(map[string]int)
	}
	stats.apiStats[api]++
}

// Dec increments the api stats counter.
func (stats *HTTPAPIStats) Dec(api string) {
	if stats == nil {

	// Ignore the uuid sentinel and count the rest.
	for _, etag := range etags {
		if etag == "" {
			continue
		}
		etagOccurrenceMap[etag]++
	}

	maxima = 0 // Counter for remembering max occurrence of elements.
	latest := ""

	// Find the common cardinality from previously collected
	// occurrences of elements.
	for etag, count := range etagOccurrenceMap {
		if count < maxima {

type MetricType int

const (
	// CounterMT - represents a counter metric.
	CounterMT MetricType = iota
	// GaugeMT - represents a gauge metric.
	GaugeMT
	// HistogramMT - represents a histogram metric.
	HistogramMT
)

func (mt MetricType) String() string {
	switch mt {
	case CounterMT:
		return "counter"
	case GaugeMT:
		return "gauge"
	case HistogramMT:
		return "histogram"
	default:

				} else {
					res, err = objAPI.HealObject(ctx, task.bucket, task.object, task.versionID, task.opts)
				}
			}

			if bgSeq != nil {
				// We increment relevant counter based on the heal result for prometheus reporting.
				if err != nil {
					bgSeq.countFailed(res)
				} else {
					bgSeq.countHeals(res.Type, false)
				}
			}

			if task.respCh != nil {