file

Documentation

Index

• func CopyNFilesUnderDir(outFilename, inDir string) error
• func CopyNFilesUnderDirBySplice(outFilename, inDir string) error
• func FastZeroFile(w TruncateWriter, fileSize int64) (err error)
• func FastZeroFileByTruncate(w TruncateWriter, fileSize int64) (err error)
• type Piece
  • func Cutting(pathToFile string, maxSize PieceSize) ([]*Piece, error)
  • func (p *Piece) GetFilename() string
  • func (p *Piece) GetPath() string
  • func (p *Piece) GetSeekInfo() (int64, int64, int64)
  • func (p *Piece) GetShardingInfo() (int, int)
  • func (p *Piece) HasBeenCut() bool
• type PieceSize
• type TruncateWriter

Functions

func CopyNFilesUnderDir

func CopyNFilesUnderDir(outFilename, inDir string) error

func CopyNFilesUnderDirBySplice

func CopyNFilesUnderDirBySplice(outFilename, inDir string) error

func FastZeroFile

func FastZeroFile(w TruncateWriter, fileSize int64) (err error)

FastZeroFile Create an empty big file quickly.

func FastZeroFileByTruncate

func FastZeroFileByTruncate(w TruncateWriter, fileSize int64) (err error)

Types

type Piece

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

func Cutting

func Cutting(pathToFile string, maxSize PieceSize) ([]*Piece, error)

func (*Piece) GetFilename

func (p *Piece) GetFilename() string

func (*Piece) GetPath

func (p *Piece) GetPath() string

func (*Piece) GetSeekInfo

func (p *Piece) GetSeekInfo() (int64, int64, int64)

func (*Piece) GetShardingInfo

func (p *Piece) GetShardingInfo() (int, int)

func (*Piece) HasBeenCut

func (p *Piece) HasBeenCut() bool

type PieceSize

type PieceSize = int64

const (
	Byte PieceSize = 1
	KB   PieceSize = 1024 * Byte
	MB   PieceSize = 1024 * KB
)

type TruncateWriter

type TruncateWriter interface {
	io.WriteSeeker
	Truncate(size int64) error
}