package bio
import "cmd/internal/bio"
Package bio implements common I/O abstractions used within the Go toolchain.
Index ¶
- func MustClose(c io.Closer)
- func MustWriter(w io.Writer) io.Writer
- type Reader
- func NewReader(f *os.File) *Reader
- func Open(name string) (*Reader, error)
- func (r *Reader) Close() error
- func (r *Reader) File() *os.File
- func (r *Reader) MustSeek(offset int64, whence int) int64
- func (r *Reader) Offset() int64
- func (r *Reader) Slice(length uint64) ([]byte, bool, error)
- func (r *Reader) SliceRO(length uint64) []byte
- type Writer
Functions ¶
func MustClose ¶
MustClose closes Closer c and calls log.Fatal if it returns a non-nil error.
func MustWriter ¶
MustWriter returns a Writer that wraps the provided Writer, except that it calls log.Fatal instead of returning a non-nil error.
Types ¶
type Reader ¶
Reader implements a seekable buffered io.Reader.
func NewReader ¶
NewReader returns a Reader from an open file.
func Open ¶
Open returns a Reader for the file named name.
func (*Reader) Close ¶
func (*Reader) File ¶
func (*Reader) MustSeek ¶
func (*Reader) Offset ¶
func (*Reader) Slice ¶
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 (*Reader) SliceRO ¶
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.
type Writer ¶
Writer implements a seekable buffered io.Writer.
func Create ¶
Create creates the file named name and returns a Writer for that file.
func (*Writer) Close ¶
func (*Writer) File ¶
func (*Writer) MustSeek ¶
func (*Writer) Offset ¶
Source Files ¶
- Version
- v1.24.0 (latest)
- Published
- Feb 10, 2025
- Platform
- linux/amd64
- Imports
- 7 packages
- Last checked
- 7 minutes ago –
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