// multi-part PUT request. It derives an unique encryption key from
// the partID and the object key.
func EncryptMultiPart(r io.Reader, partID int, key ObjectKey) io.Reader {
	partKey := key.DerivePartKey(uint32(partID))
	return EncryptSinglePart(r, ObjectKey(partKey))
}

// DecryptSinglePart decrypts an io.Writer which must an object
// uploaded with the single-part PUT API. The offset and length

pkg image/color, func CMYKToRGB(uint8, uint8, uint8, uint8) (uint8, uint8, uint8)
pkg image/color, func RGBToCMYK(uint8, uint8, uint8) (uint8, uint8, uint8, uint8)
pkg image/color, method (CMYK) RGBA() (uint32, uint32, uint32, uint32)
pkg image/color, type CMYK struct
pkg image/color, type CMYK struct, C uint8
pkg image/color, type CMYK struct, K uint8
pkg image/color, type CMYK struct, M uint8
pkg image/color, type CMYK struct, Y uint8

		err:        err,
		readCloser: nil,
	}
}

// safeCloser will wrap a Reader as a ReadCloser.
// It is safe to call Close while the reader is being used.
type safeCloser struct {
	closed uint32
	r      io.Reader
}

func (s *safeCloser) Read(p []byte) (n int, err error) {
	if atomic.LoadUint32(&s.closed) == 1 {
		return 0, io.EOF
	}
	n, err = s.r.Read(p)

import (
	"github.com/tinylib/msgp/msgp"
)

// DecodeMsg implements msgp.Decodable
func (z *metacache) DecodeMsg(dc *msgp.Reader) (err error) {
	var field []byte
	_ = field
	var zb0001 uint32
	zb0001, err = dc.ReadMapHeader()
	if err != nil {
		err = msgp.WrapError(err)
		return
	}
	for zb0001 > 0 {
		zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)

		t.Errorf("'%s' test succeeded but it should fail because the legacy algorithm was used", sealedKey.Algorithm)
	}
}

var derivePartKeyTest = []struct {
	PartID  uint32
	PartKey string
}{
	{PartID: 0, PartKey: "aa7855e13839dd767cd5da7c1ff5036540c9264b7a803029315e55375287b4af"},
	{PartID: 1, PartKey: "a3e7181c6eed030fd52f79537c56c4d07da92e56d374ff1dd2043350785b37d8"},

		FieldReadonly           string `gorm:"->"`
		FieldIgnore             string `gorm:"-"`
		AutoUnixCreateTime      int32  `gorm:"autocreatetime"`
		AutoUnixMilliCreateTime int    `gorm:"autocreatetime:milli"`
		AutoUnixNanoCreateTime  int64  `gorm:"autocreatetime:nano"`
		AutoUnixUpdateTime      uint32 `gorm:"autoupdatetime"`
		AutoUnixMilliUpdateTime int    `gorm:"autoupdatetime:milli"`

import (
	"github.com/tinylib/msgp/msgp"
)

// DecodeMsg implements msgp.Decodable
func (z *listPathOptions) DecodeMsg(dc *msgp.Reader) (err error) {
	var field []byte
	_ = field
	var zb0001 uint32
	zb0001, err = dc.ReadMapHeader()
	if err != nil {
		err = msgp.WrapError(err)
		return
	}
	for zb0001 > 0 {
		zb0001--
		field, err = dc.ReadMapKeyPtr()
		if err != nil {
			err = msgp.WrapError(err)

	headerLength := len(header)
	payloadLength := len(payload)
	totalLength := totalByteLength(headerLength, payloadLength)

	buf := new(bytes.Buffer)
	binary.Write(buf, binary.BigEndian, uint32(totalLength))
	binary.Write(buf, binary.BigEndian, uint32(headerLength))
	prelude := buf.Bytes()
	binary.Write(buf, binary.BigEndian, crc32.ChecksumIEEE(prelude))
	buf.Write(header)
	if payload != nil {
		buf.Write(payload)
	}

					info.Rotational = &rot
				}
			}
		}
	}

	return info, nil
}

// GetDriveStats returns IO stats of the drive by its major:minor
func GetDriveStats(major, minor uint32) (iostats IOStats, err error) {
	return readDriveStats(fmt.Sprintf("/sys/dev/block/%v:%v/stat", major, minor))
}

func readDriveStats(statsFile string) (iostats IOStats, err error) {
	stats, err := readStat(statsFile)

	}

	// Update size...
	binary.BigEndian.PutUint32(dst[dataOffset-4:dataOffset], uint32(len(dst)-dataOffset))

	// Add CRC of metadata as fixed size (5 bytes)
	// Prior to v1.3 this was variable sized.
	tmp = tmp[:5]
	tmp[0] = 0xce // muint32
	binary.BigEndian.PutUint32(tmp[1:], uint32(xxhash.Sum64(dst[dataOffset:])))
	dst = append(dst, tmp[:5]...)
	return append(dst, x.data...), nil
}