* for compatibility.
   *
   * @since 30.0
   */
  public static final MediaType FONT_SFNT = createConstant(FONT_TYPE, "sfnt");

  /**
   * <a href="https://en.wikipedia.org/wiki/TrueType">True Type Font Format</a> (TTF) as defined by
   * <a href="https://tools.ietf.org/html/rfc8081">RFC 8081</a>.
   *
   * @since 30.0
   */
  public static final MediaType FONT_TTF = createConstant(FONT_TYPE, "ttf");

   * for compatibility.
   *
   * @since 30.0
   */
  public static final MediaType FONT_SFNT = createConstant(FONT_TYPE, "sfnt");

  /**
   * <a href="https://en.wikipedia.org/wiki/TrueType">True Type Font Format</a> (TTF) as defined by
   * <a href="https://tools.ietf.org/html/rfc8081">RFC 8081</a>.
   *
   * @since 30.0
   */
  public static final MediaType FONT_TTF = createConstant(FONT_TYPE, "ttf");

	ByteReflectType    = reflect.TypeOf(uint8(0))
)

type (
	// DataType GORM data type
	DataType string
	// TimeType GORM time type
	TimeType int64
)

// GORM time types
const (
	UnixTime        TimeType = 1
	UnixSecond      TimeType = 2
	UnixMillisecond TimeType = 3
	UnixNanosecond  TimeType = 4
)

// GORM fields types
const (
	Bool   DataType = "bool"
	Int    DataType = "int"

func sftpTrace(s *sftp.Request, startTime time.Time, source string, user string, err error, sz int64) madmin.TraceInfo {
	var errStr string
	if err != nil {
		errStr = err.Error()
	}
	return madmin.TraceInfo{
		TraceType: madmin.TraceFTP,
		Time:      startTime,
		NodeName:  globalLocalNodeName,
		FuncName:  s.Method,
		Duration:  time.Since(startTime),
		Path:      s.Filepath,
		Error:     errStr,
		Bytes:     sz,

func ftpTrace(s *ftp.Context, startTime time.Time, source, objPath string, err error, sz int64) madmin.TraceInfo {
	var errStr string
	if err != nil {
		errStr = err.Error()
	}
	return madmin.TraceInfo{
		TraceType: madmin.TraceFTP,
		Time:      startTime,
		NodeName:  globalLocalNodeName,
		FuncName:  s.Cmd,
		Duration:  time.Since(startTime),
		Path:      objPath,
		Error:     errStr,
		Bytes:     sz,

	globalOSSignalCh        = make(chan os.Signal, 1)

	// global Trace system to send HTTP request/response
	// and Storage/OS calls info to registered listeners.
	globalTrace = pubsub.New[madmin.TraceInfo, madmin.TraceType](8)

	// global Listen system to send S3 API events to registered listeners
	globalHTTPListen = pubsub.New[event.Event, pubsub.Mask](0)

	// global console system to send console logs to
	// registered listeners

}

func storageTrace(s storageMetric, startTime time.Time, duration time.Duration, path string, size int64, err string, custom map[string]string) madmin.TraceInfo {
	return madmin.TraceInfo{
		TraceType: madmin.TraceStorage,
		Time:      startTime,
		NodeName:  globalLocalNodeName,
		FuncName:  "storage." + s.String(),
		Duration:  duration,
		Bytes:     size,
		Path:      path,
		Error:     err,

		isErrObjectNotFound(err) ||
		isErrBucketNotFound(err) ||
		errors.Is(err, os.ErrDeadlineExceeded) ||
		notInitialized
}

func bootstrapTraceMsg(msg string) {
	info := madmin.TraceInfo{
		TraceType: madmin.TraceBootstrap,
		Time:      UTCNow(),
		NodeName:  globalLocalNodeName,
		FuncName:  "BOOTSTRAP",
		Message:   fmt.Sprintf("%s %s", getSource(2), msg),
	}
	globalBootstrapTracer.Record(info)

	var errStr string
	if err != nil {
		errStr = err.Error()
	}
	return madmin.TraceInfo{
		TraceType: madmin.TraceRebalance,
		Time:      startTime,
		NodeName:  globalLocalNodeName,
		FuncName:  fmt.Sprintf("rebalance.%s (pool-id=%d)", r.String(), poolIdx),
		Duration:  duration,
		Path:      path,

// healTrace sends healing results to trace output.
func healTrace(funcName healingMetric, startTime time.Time, bucket, object string, opts *madmin.HealOpts, err error, result *madmin.HealResultItem) {
	tr := madmin.TraceInfo{
		TraceType: madmin.TraceHealing,
		Time:      startTime,
		NodeName:  globalLocalNodeName,
		FuncName:  "heal." + funcName.String(),
		Duration:  time.Since(startTime),
		Path:      pathJoin(bucket, decodeDirObject(object)),