go/src/cmd/internal/bio/buf.go

type Reader

type Writer

// Create creates the file named name and returns a Writer
// for that file.
func Create(name string) (*Writer, error) {}

// Open returns a Reader for the file named name.
func Open(name string) (*Reader, error) {}

// NewReader returns a Reader from an open file.
func NewReader(f *os.File) *Reader {}

func (r *Reader) MustSeek(offset int64, whence int) int64 {}

func (w *Writer) MustSeek(offset int64, whence int) int64 {}

func (r *Reader) Offset() int64 {}

func (w *Writer) Offset() int64 {}

func (r *Reader) Close() error {}

func (w *Writer) Close() error {}

func (r *Reader) File() *os.File {}

func (w *Writer) File() *os.File {}

// Slice reads the next length bytes of r into a slice.
//
// This slice may be backed by mmap'ed memory. Currently, this memory
// will never be unmapped. The second result reports whether the
// backing memory is read-only.
func (r *Reader) Slice(length uint64) ([]byte, bool, error) {}

// SliceRO returns a slice containing the next length bytes of r
// backed by a read-only mmap'd data. If the mmap cannot be
// established (limit exceeded, region too small, etc) a nil slice
// will be returned. If mmap succeeds, it will never be unmapped.
func (r *Reader) SliceRO(length uint64) []byte {}