"audio/sp-midi",
				"audio/t140c",
				"audio/t38",
				"audio/telephone-event",
				"audio/tone",
				"audio/ulpfec",
				"audio/vdvi",
				"audio/vmr-wb",
				"audio/vnd.3gpp.iufp",
				"audio/vnd.4sb",
				"audio/vnd.audiokoz",
				"audio/vnd.adobe.soundbooth",
				"audio/vnd.celp",
				"audio/vnd.cisco.nse",
				"audio/vnd.cmles.radio-events",
				"audio/vnd.cns.anp1",

	defer d.mu.Unlock()

	size := n
	if size <= 0 {
		size = 100
		n = -1
	}
	for n != 0 {
		// Refill the buffer if necessary.
		if d.bufp >= d.nbuf {
			nb, err := file.Read(d.buf[:])

			// Update the buffer state before checking for errors.
			d.bufp, d.nbuf = 0, nb

			if err != nil {
				if err == io.EOF {
					break
				}

	}

	bufp := base64BufPool.Get().(*[]byte)
	defer base64BufPool.Put(bufp)

	tokenBuf := base64BufPool.Get().(*[]byte)
	defer base64BufPool.Put(tokenBuf)

	token := *tokenBuf
	// Copy token to buffer, truncate to length.
	token = token[:copy(token[:base64BufferSize], tokenStr)]

	signer, err := ParseUnverifiedStandardClaims(token, claims, *bufp)
	if err != nil {
		return err
	}

	// end and positive to mean bounded, with positive
	// terminating at 0.
	if n == 0 {
		n = -1
	}

	for n != 0 {
		// Refill the buffer if necessary
		if d.bufp >= d.nbuf {
			d.bufp = 0
			var errno error
			d.nbuf, errno = f.pfd.ReadDirent(*d.buf)
			runtime.KeepAlive(f)
			if errno != nil {
				return names, dirents, infos, &PathError{Op: "readdirent", Path: f.name, Err: errno}
			}

				info := (*windows.FILE_FULL_DIR_INFO)(entry)
				nextEntryOffset = info.NextEntryOffset
				nameslice = unsafe.Slice(&info.FileName[0], info.FileNameLength/2)
			}
			d.bufp += int(nextEntryOffset)
			islast = nextEntryOffset == 0
			if islast {
				d.bufp = 0
			}
			if (len(nameslice) == 1 && nameslice[0] == '.') ||
				(len(nameslice) == 2 && nameslice[0] == '.' && nameslice[1] == '.') {

		if err != nil {
			if osErrToFileErr(err) == errFileNotFound {
				return nil
			}
			return osErrToFileErr(err)
		}

	}
	defer syscall.Close(fd)

	bufp := direntPool.Get().(*[]byte)
	defer direntPool.Put(bufp)
	buf := *bufp

	boff := 0 // starting read position in buf
	nbuf := 0 // end valid data in buf

	for {
		if boff >= nbuf {
			boff = 0

		t.Errorf("Error creating tmp file: %v", err)
	}
	defer f.Close()
	defer os.Remove(f.Name())

	r := strings.NewReader("hello world")

	bufp := ODirectPoolSmall.Get().(*[]byte)
	defer ODirectPoolSmall.Put(bufp)

	written, err := CopyAligned(f, io.LimitReader(r, 5), *bufp, r.Size(), f)
	if !errors.Is(err, io.ErrUnexpectedEOF) {
		t.Errorf("Expected io.ErrUnexpectedEOF, but got %v", err)
	}
	if written != 5 {

	// it with the actual file size.
	if left != bitrotShardFileSize(partSize, shardSize, algo) {
		return errFileCorrupt
	}

	bufp := xioutil.ODirectPoolSmall.Get().(*[]byte)
	defer xioutil.ODirectPoolSmall.Put(bufp)

	for left > 0 {
		// Read expected hash...
		h.Reset()
		n, err := io.ReadFull(r, hashBuf)
		if err != nil {

		// Buffer too small or will likely leak memory after being expanded.
		// Drop it.
		return
	}
	b.pool.Put(&buf)
}

func (b *bufPool) Get() []byte {
	bufp := b.pool.Get().(*[]byte)
	return (*bufp)[:b.sz]
}

func newBufPool(sz int) httputil.BufferPool {
	return &bufPool{sz: sz, pool: sync.Pool{
		New: func() interface{} {
			buf := make([]byte, sz)
			return &buf
		},
	}}
}

		return &b
	},
}

// Copy is exactly like io.Copy but with reusable buffers.
func Copy(dst io.Writer, src io.Reader) (written int64, err error) {
	bufp := copyBufPool.Get().(*[]byte)
	buf := *bufp
	defer copyBufPool.Put(bufp)

	return io.CopyBuffer(dst, src, buf)
}

// SameFile returns if the files are same.
func SameFile(fi1, fi2 os.FileInfo) bool {
	if !os.SameFile(fi1, fi2) {