// even if updating the value errors out.
	// Returns the last good value AND the error.
	ReturnLastGood bool

	// If CacheError is set, errors will be cached as well
	// and not continuously try to update.
	// Should not be combined with ReturnLastGood.
	CacheError bool

	// If NoWait is set, Get() will return the last good value,
	// if TTL has expired but 2x TTL has not yet passed,

// When a non-nil error is returned 'done' MUST be called
// with the status of the response, if it corresponds to disk health.
// If the pointer sent to done is non-nil AND the error
// is either nil or io.EOF the disk is considered good.
// So if unsure if the disk status is ok, return nil as a parameter to done.
// Shadowing will work as long as return error is named: https://go.dev/play/p/sauq86SsTN2

			}
		}
		if IsErr(err, []error{
			nil,
			context.Canceled,
			context.DeadlineExceeded,
			// io.EOF is expected and should be returned but no need to log it.
			io.EOF,
		}...) {
			// Expected good errors we don't need to return error.
			return entries, err
		}
		entries.truncate(0)
		go func() {
			rpc := globalNotificationSys.restClientFromHash(pathJoin(o.Bucket, o.Prefix))
			if rpc != nil {

	// the user-agent slice.
	uaAppend := func(p, q string) {
		userAgentParts = append(userAgentParts, p, q)
	}
	uaAppend(MinioUAName, " (")
	uaAppend("", runtime.GOOS)
	uaAppend("; ", runtime.GOARCH)
	if mode != "" {
		uaAppend("; ", mode)
	}
	if IsDCOS() {
		uaAppend("; ", "dcos")
	}
	if IsKubernetes() {
		uaAppend("; ", "kubernetes")
	}
	if IsDocker() {

	}
}

func getMinioProcMetrics() *MetricsGroupV2 {
	mg := &MetricsGroupV2{
		cacheInterval: 10 * time.Second,
	}
	mg.RegisterRead(func(ctx context.Context) (metrics []MetricV2) {
		if runtime.GOOS == "windows" {
			return nil
		}

		p, err := procfs.Self()
		if err != nil {
			internalLogOnceIf(ctx, err, string(nodeMetricNamespace))
			return
		}

	letterIdxMax  = 63 / letterIdxBits   // # of letter indices fitting in 63 bits
)

// Random number state.
// We generate random temporary file names so that there's a good
// chance the file doesn't exist yet.
var (
	randN  uint32
	randmu sync.Mutex
)

// Temp files created in default Tmp dir
var globalTestTmpDir = os.TempDir()

			return fmt.Errorf("bucket replication config validation error: %#v", apiErr)
		}
		err = newReplicationConfig.Validate(bucket, sameTarget)
		if err != nil {
			return err
		}
		// Config looks good, so we save it.
		replCfgData, err := xml.Marshal(newReplicationConfig)
		if err != nil {
			return err
		}

		_, err = globalBucketMetadataSys.Update(ctx, bucket, bucketReplicationConfig, replCfgData)

		}
	}

	var maxLimit uint64

	// Set open files limit to maximum.
	if _, maxLimit, err = sys.GetMaxOpenFileLimit(); err != nil {
		return err
	}

	if maxLimit < 4096 && runtime.GOOS != globalWindowsOSName {
		logger.Info("WARNING: maximum file descriptor limit %d is too low for production servers. At least 4096 is recommended. Fix with \"ulimit -n 4096\"",
			maxLimit)
	}

// to do case insensitive checks.
func HasSuffix(s string, suffix string) bool {
	if runtime.GOOS == globalWindowsOSName {
		return strings.HasSuffix(strings.ToLower(s), strings.ToLower(suffix))
	}
	return strings.HasSuffix(s, suffix)
}

// Validates if two strings are equal.
func isStringEqual(s1 string, s2 string) bool {
	if runtime.GOOS == globalWindowsOSName {
		return strings.EqualFold(s1, s2)
	}
	return s1 == s2
}

	ifs, err := net.Interfaces()
	logger.FatalIf(err, "Unable to get IP addresses of this host")

	for _, interf := range ifs {
		addrs, err := interf.Addrs()
		if err != nil {
			continue
		}
		if runtime.GOOS == "windows" && interf.Flags&net.FlagUp == 0 {
			continue
		}

		for _, addr := range addrs {
			var ip net.IP
			switch v := addr.(type) {
			case *net.IPNet:
				ip = v.IP
			case *net.IPAddr: