appendable

Documentation

Index

• Constants
• func Checksum(rAt io.ReaderAt, off, n int64) (checksum [sha256.Size]byte, err error)
• type Appendable
• type Metadata
  • func NewMetadata(b []byte) *Metadata
  • func (m *Metadata) Bytes() []byte
  • func (m *Metadata) Get(key string) ([]byte, bool)
  • func (m *Metadata) GetInt(key string) (int, bool)
  • func (m *Metadata) Put(key string, value []byte)
  • func (m *Metadata) PutInt(key string, n int)
  • func (m *Metadata) ReadFrom(r io.Reader) (int64, error)
  • func (m *Metadata) WriteTo(w io.Writer) (n int64, err error)
• type Reader
  • func NewReaderFrom(rAt io.ReaderAt, off int64, size int) *Reader
  • func (r *Reader) Offset() int64
  • func (r *Reader) Read(bs []byte) (n int, err error)
  • func (r *Reader) ReadByte() (byte, error)
  • func (r *Reader) ReadCount() int64
  • func (r *Reader) ReadUint16() (uint16, error)
  • func (r *Reader) ReadUint32() (uint32, error)
  • func (r *Reader) ReadUint64() (uint64, error)
  • func (r *Reader) Reset()

Constants

const (
	NoCompression = iota
	FlateCompression
	GZipCompression
	LZWCompression
	ZLibCompression
)

const (
	BestSpeed          = flate.BestSpeed
	BestCompression    = flate.BestCompression
	DefaultCompression = flate.DefaultCompression
	HuffmanOnly        = flate.HuffmanOnly
)

const DefaultCompressionFormat = NoCompression

const DefaultCompressionLevel = BestSpeed

Functions

func Checksum

func Checksum(rAt io.ReaderAt, off, n int64) (checksum [sha256.Size]byte, err error)

Types

type Appendable

type Appendable interface {
	Metadata() []byte
	Size() (int64, error)
	Offset() int64
	SetOffset(off int64) error
	DiscardUpto(off int64) error
	Append(bs []byte) (off int64, n int, err error)
	Flush() error
	Sync() error
	SwitchToReadOnlyMode() error
	ReadAt(bs []byte, off int64) (int, error)
	Close() error
	Copy(dstPath string) error
	CompressionFormat() int
	CompressionLevel() int
}

type Metadata

type Metadata struct {
	// contains filtered or unexported fields
}

func NewMetadata

func NewMetadata(b []byte) *Metadata

func (*Metadata) Bytes

func (m *Metadata) Bytes() []byte

func (*Metadata) Get

func (m *Metadata) Get(key string) ([]byte, bool)

func (*Metadata) GetInt

func (m *Metadata) GetInt(key string) (int, bool)

func (*Metadata) Put

func (m *Metadata) Put(key string, value []byte)

func (*Metadata) PutInt

func (m *Metadata) PutInt(key string, n int)

func (*Metadata) ReadFrom

func (m *Metadata) ReadFrom(r io.Reader) (int64, error)

func (*Metadata) WriteTo

func (m *Metadata) WriteTo(w io.Writer) (n int64, err error)

type Reader

type Reader struct {
	// contains filtered or unexported fields
}

func NewReaderFrom

func NewReaderFrom(rAt io.ReaderAt, off int64, size int) *Reader

func (*Reader) Offset

func (r *Reader) Offset() int64

func (*Reader) Read

func (r *Reader) Read(bs []byte) (n int, err error)

func (*Reader) ReadByte

func (r *Reader) ReadByte() (byte, error)

func (*Reader) ReadCount

func (r *Reader) ReadCount() int64

func (*Reader) ReadUint16

func (r *Reader) ReadUint16() (uint16, error)

func (*Reader) ReadUint32

func (r *Reader) ReadUint32() (uint32, error)

func (*Reader) ReadUint64

func (r *Reader) ReadUint64() (uint64, error)

func (*Reader) Reset

func (r *Reader) Reset()