)

var magicHeaders = []struct {
	header []byte
	f      format
}{
	{
		header: []byte{0x1f, 0x8b, 8},
		f:      formatGzip,
	},
	{
		// Zstd default header.
		header: []byte{0x28, 0xb5, 0x2f, 0xfd},
		f:      formatZstd,
	},
	{
		// Zstd skippable frame header.
		header: []byte{0x2a, 0x4d, 0x18},
		f:      formatZstd,
	},
	{
		// LZ4
		header: []byte{0x4, 0x22, 0x4d, 0x18},

	var idxCb func() []byte
	if isCompressed {
		wantEncryption := crypto.Requested(r.Header) || isEncrypted
		s2c, cb := newS2CompressReader(reader, actualPartSize, wantEncryption)
		idxCb = cb
		defer s2c.Close()
		reader = etag.Wrap(s2c, reader)
		length = -1
	}

	srcInfo.Reader, err = hash.NewReader(ctx, reader, length, "", "", actualPartSize)
	if err != nil {

		// Validate the SSE-C Key set in the header.
		if _, err = crypto.SSEC.UnsealObjectKey(r.Header, objInfo.UserDefined, bucket, object); err != nil {
			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}
		w.Header().Set(xhttp.AmzServerSideEncryptionCustomerAlgorithm, r.Header.Get(xhttp.AmzServerSideEncryptionCustomerAlgorithm))

package cmd

// Code generated by github.com/tinylib/msgp DO NOT EDIT.

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

// DecodeMsg implements msgp.Decodable
func (z *BatchJobKV) 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()

func (z *allTierStats) MarshalMsg(b []byte) (o []byte, err error) {
	o = msgp.Require(b, z.Msgsize())
	// map header, size 1
	// string "ts"
	o = append(o, 0x81, 0xa2, 0x74, 0x73)
	o = msgp.AppendMapHeader(o, uint32(len(z.Tiers)))
	for za0001, za0002 := range z.Tiers {
		o = msgp.AppendString(o, za0001)
		// map header, size 3
		// string "ts"
		o = append(o, 0x83, 0xa2, 0x74, 0x73)
		o = msgp.AppendUint64(o, za0002.TotalSize)

		zb0001Len--
		zb0001Mask |= 0x1
	}
	// variable map header, size zb0001Len
	o = append(o, 0x80|uint8(zb0001Len))
	if zb0001Len == 0 {
		return
	}
	if (zb0001Mask & 0x1) == 0 { // if not omitted
		// string "V2Obj"
		o = append(o, 0xa5, 0x56, 0x32, 0x4f, 0x62, 0x6a)
		if z.ObjectV2 == nil {
			o = msgp.AppendNil(o)
		} else {
			// map header, size 1
			// string "DDir"

			}
		}
	} else if _, ok := r.Header[xhttp.AmzContentSha256]; !skipSHA256 && ok {
		contentSHA256, err = hex.DecodeString(r.Header.Get(xhttp.AmzContentSha256))
		if err != nil || len(contentSHA256) == 0 {
			return ErrContentSHA256Mismatch
		}
	}

	// Verify 'Content-Md5' and/or 'X-Amz-Content-Sha256' if present.
	// The verification happens implicit during reading.

	o = msgp.Require(b, z.Msgsize())
	// map header, size 4
	// string "LastHour"
	o = append(o, 0x84, 0xa8, 0x4c, 0x61, 0x73, 0x74, 0x48, 0x6f, 0x75, 0x72)
	o, err = z.LastHour.MarshalMsg(o)
	if err != nil {
		err = msgp.WrapError(err, "LastHour")
		return
	}
	// string "SinceUptime"
	o = append(o, 0xab, 0x53, 0x69, 0x6e, 0x63, 0x65, 0x55, 0x70, 0x74, 0x69, 0x6d, 0x65)
	// map header, size 2
	// string "Count"

	return resp.Body, nil
}

var updateInProgress atomic.Uint32

// Function to get the reader from an architecture
func downloadBinary(u *url.URL, mode string) (binCompressed []byte, bin []byte, err error) {
	transport := getUpdateTransport(30 * time.Second)
	var reader io.ReadCloser
	if u.Scheme == "https" || u.Scheme == "http" {
		reader, err = getUpdateReaderFromURL(u, transport, mode)
		if err != nil {
			return nil, nil, err

				}
				type version struct {
					Idx      int
					Header   json.RawMessage
					Metadata json.RawMessage
				}
				versions := make([]version, hdr.versions)
				headerVer := hdr.headerVer
				err = decodeVersions(v, hdr.versions, func(idx int, hdr, meta []byte) error {
					var header xlMetaV2VersionHeaderV2
					if _, err := header.UnmarshalMsg(hdr, headerVer); err != nil {
						return err
					}