)

// StorageClass - holds storage class information
type StorageClass struct {
	Parity int
}

// ConfigLock is a global lock for storage-class config
var ConfigLock sync.RWMutex

// Config storage class configuration
type Config struct {
	Standard    StorageClass `json:"standard"`
	RRS         StorageClass `json:"rrs"`
	Optimize    string       `json:"optimize"`
	inlineBlock int64

	initialized bool
}

pkg p3, func BadHop(int, int, int) (bool, bool, *ThirdBase, *ThirdBase, error)
pkg p3, method (*ThirdBase) GoodPlayer() (int, int, int)

type PostgreSQLArgs struct {
	Enable             bool      `json:"enable"`
	Format             string    `json:"format"`
	ConnectionString   string    `json:"connectionString"`
	Table              string    `json:"table"`
	Host               xnet.Host `json:"host"`     // default: localhost
	Port               string    `json:"port"`     // default: 5432
	Username           string    `json:"username"` // default: user running minio

	if err != nil {
		t.Errorf("err = %v, want %v", err, nil)
	}

	// blocking on locked file
	locked := make(chan struct{}, 1)
	go func() {
		bl, blerr := LockedOpenFile(f.Name(), os.O_WRONLY, 0o600)
		if blerr != nil {
			t.Error(blerr)
			return
		}
		locked <- struct{}{}
		if blerr = bl.Close(); blerr != nil {
			t.Error(blerr)
			return
		}
	}()

	select {
	case <-locked:

	server.Config.Addr = listener.Addr().String()
	server.Listener = listener
	server.Start()
	return server
}

func dummyRequestValidate(r *http.Request) error {
	return nil
}

func dummyTokenValidate(token string) error {
	if token == "debug" {
		return nil
	}
	return fmt.Errorf("invalid token. want empty, got %s", token)
}

func dummyNewToken() string {
	return "debug"

	}

	testCases := []struct {
		srcVol  string
		srcPath string
		// expected result.
		expectedListDir []string
		expectedErr     error
	}{
		// TestXLStorage case - 1.
		// valid case with existing volume and file to delete.
		{
			srcVol:          "success-vol",
			srcPath:         "abc",
			expectedListDir: []string{"def/", "xyz/"},
			expectedErr:     nil,
		},

func newWholeBitrotWriter(disk StorageAPI, volume, filePath string, algo BitrotAlgorithm, shardSize int64) io.WriteCloser {
	return &wholeBitrotWriter{disk, volume, filePath, shardSize, algo.New()}
}

// Implementation to verify bitrot for the whole file.
type wholeBitrotReader struct {
	disk       StorageAPI
	volume     string
	filePath   string
	verifier   *BitrotVerifier // Holds the bit-rot info

// Filter - a filter for a replication configuration Rule.
type Filter struct {
	XMLName xml.Name `xml:"Filter" json:"Filter"`
	Prefix  string
	And     And
	Tag     Tag

	// Caching tags, only once
	cachedTags map[string]string
}

// IsEmpty returns true if filter is not set
func (f Filter) IsEmpty() bool {

	fw, ok := flateWriterPool.Get().(*flate.Writer)
	if ok {
		fw.Reset(w)
	} else {
		fw, _ = flate.NewWriter(w, 5)
	}
	return &pooledFlateWriter{fw: fw}
}

type pooledFlateWriter struct {
	mu sync.Mutex // guards Close and Write
	fw *flate.Writer
}

func (w *pooledFlateWriter) Write(p []byte) (n int, err error) {
	w.mu.Lock()
	defer w.mu.Unlock()
	if w.fw == nil {

	tests := []struct {
		sizes []int64
		want  map[string]uint64
	}{
		{
			sizes: []int64{100, 1000, 72_000, 100_000},
			want: map[string]uint64{
				"LESS_THAN_1024_B":         2,
				"BETWEEN_64_KB_AND_256_KB": 2,
				"BETWEEN_1024B_AND_1_MB":   2,
			},
		},
		{
			sizes: []int64{100, 1000, 2000, 100_000, 13 * humanize.MiByte},
			want: map[string]uint64{
				"LESS_THAN_1024_B":         2,