public HashCode hashBytes(byte[] input) {
    return hashBytes(input, 0, input.length);
  }

  @Override
  public HashCode hashBytes(byte[] input, int off, int len) {
    checkPositionIndexes(off, off + len, input.length);
    return newHasher(len).putBytes(input, off, len).hash();
  }

  @Override
  public HashCode hashBytes(ByteBuffer input) {
    return newHasher(input.remaining()).putBytes(input).hash();
  }

  /**
   * This method will be called for each chunk of bytes in an input stream. The implementation
   * should process the bytes from {@code buf[off]} through {@code buf[off + len - 1]} (inclusive).
   *
   * @param buf the byte array containing the data to process
   * @param off the initial offset into the array
   * @param len the length of data to be processed
   * @return true to continue processing, false to stop
   */

    @Override
    public int recv ( byte[] buf, int off, int len ) throws IOException {
        return getInput().readDirect(buf, off, len);

    }


    @Override
    public void send ( byte[] buf, int off, int length ) throws IOException {
        getOutput().writeDirect(buf, off, length, 1);
    }


    /**
     * 
     * {@inheritDoc}
     *
     * @see jcifs.smb.SmbPipeHandleInternal#getPipeType()

[short] skip
# Reset all experiments so fieldtrack is definitely off.
env GOEXPERIMENT=none
go run m
stderr 'fieldtrack off'
# Turn fieldtrack on.
env GOEXPERIMENT=none,fieldtrack
go run m
stderr 'fieldtrack on'

-- ft_off.go --
// +build !goexperiment.fieldtrack

package main

func main() {
	println("fieldtrack off")
}

-- ft_on.go --
// +build goexperiment.fieldtrack

package main

func main() {

			// set up addend for eventual relocation via outer symbol.
			_, off := ld.FoldSubSymbolOffset(ldr, rs)
			xadd := r.Add() + off
			return applyrel(target.Arch, ldr, r.Type(), r.Off(), s, val, xadd), 1, true

		case objabi.R_ADDRMIPSTLS, objabi.R_CALLMIPS, objabi.R_JMPMIPS:
			return applyrel(target.Arch, ldr, r.Type(), r.Off(), s, val, r.Add()), 1, true
		}
	}

	const isOk = true
	const noExtReloc = 0

            e.type = SMBUtil.readInt4(buffer, bufferIndex);
            bufferIndex += 4;
            int off = SMBUtil.readInt4(buffer, bufferIndex);
            bufferIndex += 4;
            off = ( off & 0xFFFF ) - this.converter;
            off = start + off;
            e.commentOrMasterBrowser = readString(buffer, off, 48, false);

            if ( log.isTraceEnabled() ) {
                log.trace(e.toString());

	if !ok {
		return 0, false
	}
	return reclen - uint64(unsafe.Offsetof(syscall.Dirent{}.Name)), true
}

func direntType(buf []byte) FileMode {
	off := unsafe.Offsetof(syscall.Dirent{}.Type)
	if off >= uintptr(len(buf)) {
		return ^FileMode(0) // unknown
	}
	typ := buf[off]
	switch typ {
	case syscall.DT_BLK:
		return ModeDevice
	case syscall.DT_CHR:
		return ModeDevice | ModeCharDevice
	case syscall.DT_DIR:

	return readInt(buf, unsafe.Offsetof(syscall.Dirent{}.Namlen), unsafe.Sizeof(syscall.Dirent{}.Namlen))
}

func direntType(buf []byte) FileMode {
	off := unsafe.Offsetof(syscall.Dirent{}.Type)
	if off >= uintptr(len(buf)) {
		return ^FileMode(0) // unknown
	}
	typ := buf[off]
	switch typ {
	case syscall.DT_BLK:
		return ModeDevice
	case syscall.DT_CHR:
		return ModeDevice | ModeCharDevice
	case syscall.DT_DIR:

	return syscall.Read(int(fd), buf)
}

func closefd(fd uintptr) {
	syscall.Close(int(fd))
}

func preadn(fd uintptr, buf []byte, off int) error {
	whence := seekStart
	if off < 0 {
		whence = seekEnd
	}
	if _, err := syscall.Seek(int(fd), int64(off), whence); err != nil {
		return err
	}
	for len(buf) > 0 {
		m, err := syscall.Read(int(fd), buf)
		if m <= 0 {
			if err == nil {

		return nil, false
	}

	// Page-align the offset.
	off := r.Offset()
	align := syscall.Getpagesize()
	aoff := off &^ int64(align-1)

	data, err := syscall.Mmap(int(r.f.Fd()), aoff, int(length+uint64(off-aoff)), syscall.PROT_READ, syscall.MAP_SHARED|syscall.MAP_FILE)
	if err != nil {
		return nil, false
	}

	data = data[off-aoff:]
	r.MustSeek(int64(length), 1)
	return data, true