chunkreaderat

README

ChunkReaderAt

A go library to cache a ReaderAt interface with chunks

Documentation

Index

• Variables
• type ChunkReaderAt
  • func NewChunkReaderAt(rd io.ReaderAt, size, chunkSize int64, bufferSize int) (*ChunkReaderAt, error)
  • func (r *ChunkReaderAt) ReadAt(b []byte, offset int64) (int, error)
  • func (r *ChunkReaderAt) Size() int64

Variables

var (
	ErrAssertion      = errors.New("assertion error")
	ErrNegativeOffset = errors.New("bytes.Reader.ReadAt: negative offset")
	ErrBufferSize     = errors.New("bufferSize can't be <= 0")
)

Types

type ChunkReaderAt

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

ChunkReaderAt implement io.ReaderAt interface

func NewChunkReaderAt

func NewChunkReaderAt(rd io.ReaderAt, size, chunkSize int64, bufferSize int) (*ChunkReaderAt, error)

NewChunkReaderAt create a new ChunkReaderAt rd is a source io.ReaderAt + a Size() function mandatory for zip manipulation. chunkSize is the size of a chunk put in cache. bufferSize is the number of chunk stored in cache with an ARC eviction mecanism.

func (*ChunkReaderAt) ReadAt

func (r *ChunkReaderAt) ReadAt(b []byte, offset int64) (int, error)

func (*ChunkReaderAt) Size

func (r *ChunkReaderAt) Size() int64

Size return size of source