lba

Documentation

Overview

Package lba provides a library for working with Logical Block Addresses.

Index

• Constants
• type LBA
  • func NewLBA(f *os.File) (*LBA, error)
  • func (l *LBA) AlignToPhysicalBlockSize(lba uint64, roundUp bool) uint64
  • func (l *LBA) ReadAt(lba, off, length int64) ([]byte, error)
  • func (l *LBA) WriteAt(lba, off int64, b []byte) error

Constants

const (
	BLKIOMIN = 0x1278
	BLKIOOPT = 0x1279
)

These newer ioctl magic values are not available from unix yet.

const RecommendedAlignment = 1048576

RecommendedAlignment is recommended alignment for LBA.

Types

type LBA

type LBA struct {
	PhysicalBlockSize int64
	LogicalBlockSize  int64
	MinimalIOSize     int64
	OptimalIOSize     int64

	TotalSectors int64
	// contains filtered or unexported fields
}

LBA represents logical block addressing.

func NewLBA

func NewLBA(f *os.File) (*LBA, error)

NewLBA initializes and returns an `LBA`.

func (*LBA) AlignToPhysicalBlockSize

func (l *LBA) AlignToPhysicalBlockSize(lba uint64, roundUp bool) uint64

AlignToPhysicalBlockSize aligns LBA value in LogicalBlockSize multiples to be aligned to PhysicalBlockSize.

func (*LBA) ReadAt

func (l *LBA) ReadAt(lba, off, length int64) ([]byte, error)

ReadAt reads from a file in units of LBA.

func (*LBA) WriteAt

func (l *LBA) WriteAt(lba, off int64, b []byte) error

WriteAt writes to a file in units of LBA.