notificationEventsSentTotal       = "events_sent_total"
	notificationEventsSkippedTotal    = "events_skipped_total"
)

var (
	notificationCurrentSendInProgressMD = NewCounterMD(notificationCurrentSendInProgress, "Number of concurrent async Send calls active to all targets")
	notificationEventsErrorsTotalMD     = NewCounterMD(notificationEventsErrorsTotal, "Events that were failed to be sent to the targets")

	// Fetch location of up to 10 objects concurrently.
	poolObjIdxMap := map[int][]ObjectToDelete{}
	origIndexMap := map[int][]int{}

	// Always perform 1/10th of the number of objects per delete
	concurrent := len(objects) / 10
	if concurrent <= 10 {
		// if we cannot get 1/10th then choose the number of
		// objects as concurrent.
		concurrent = len(objects)
	}

	var mu sync.Mutex

			metrics = append(metrics, MetricV2{
				Description: MetricDescription{
					Namespace: minioNamespace,
					Subsystem: notifySubsystem,
					Name:      "current_send_in_progress",
					Help:      "Number of concurrent async Send calls active to all targets (deprecated, please use 'minio_notify_target_current_send_in_progress' instead)",
					Type:      gaugeMetric,
				},
				Value: float64(nstats.CurrentSendCalls),
			})

	diskInfoCache *cachevalue.Cache[DiskInfo]
	sync.RWMutex
	formatData []byte

	nrRequests   uint64
	major, minor uint32
	fsType       string

	immediatePurge chan string

	// mutex to prevent concurrent read operations overloading walks.
	rotational bool
	walkMu     *sync.Mutex
	walkReadMu *sync.Mutex
}

// checkPathLength - returns error if given path name length more than 255

	return findFileInfoInQuorum(ctx, metaArr, modTime, etag, quorum)
}

// writeUniqueFileInfo - writes unique `xl.meta` content for each disk concurrently.
func writeUniqueFileInfo(ctx context.Context, disks []StorageAPI, origbucket, bucket, prefix string, files []FileInfo, quorum int) ([]StorageAPI, error) {
	g := errgroup.WithNErrs(len(disks))

				},
				UpdatedAt: mp.UpdatedAt,
			})
			return err == nil
		})
		if err != nil {
			return errSRIAMError(err)
		}
	}

	return nil
}

// Concurrency helpers

type concErr struct {
	errMap     map[string]error
	summaryErr error
}

func (c concErr) Error() string {
	if c.summaryErr != nil {
		return c.summaryErr.Error()
	}

	globalInternodeTransport = NewInternodeHTTPTransport(0)()

	initHelp()

	resetTestGlobals()

	globalIsCICD = true

	os.Exit(m.Run())
}

// concurrency level for certain parallel tests.
const testConcurrencyLevel = 10

const iso8601TimeFormat = "2006-01-02T15:04:05.000Z"

// Excerpts from @lsegal - https://github.com/aws/aws-sdk-js/issues/659#issuecomment-120477258

		//   inconsequential to the overall read operation.
		// - xl.meta metadata is still verified for quorum under lock()
		//   however writing the response doesn't need to serialize
		//   concurrent writers
		unlockOnDefer = true
		nsUnlocker = func() { lock.RUnlock(lkctx) }
	}

	fi, metaArr, onlineDisks, err := er.getObjectFileInfo(ctx, bucket, object, opts, true)
	if err != nil {

	// if we do run out of capacity, make sure to turn-off autotuning
	// in such situations.
	if autotune {
		newConcurrent := concurrent + (concurrent+1)/2
		autoTunedCapacityNeeded := uint64(newConcurrent * size)
		if capacity < autoTunedCapacityNeeded {
			// Turn-off auto-tuning if next possible concurrency would reach beyond disk capacity.
			return true, false, ""
		}
	}

	return true, autotune, ""
}

	// When FileNameFunc is not specified, DefaultFilenameFunc will be used.
	FileNameFunc func() string

	// Compress specify if you want the logs to be compressed after rotation.
	Compress bool
}

// Writer is a concurrency-safe writer with file rotation.
type Writer struct {
	// opts are the configuration options for this Writer
	opts Options

	// f is the currently open file used for appends.