xfs

Documentation

Overview

Package xfs implements a read/write XFS filesystem driver (v4 and v5). All metadata is big-endian as required by the XFS specification. I/O is zero-copy via an io.SectionReader; writes land in a dirty-block cache that is flushed to the backing store on Unmount.

Index

• type Volume
  • func Open(ra io.ReaderAt, offset, size int64) (*Volume, error)
  • func (v *Volume) Chmod(name string, mode fs.FileMode) error
  • func (v *Volume) Chown(name string, uid, gid int) error
  • func (v *Volume) Chtimes(name string, atime, mtime time.Time) error
  • func (v *Volume) Create(name string) (*volfs.File, error)
  • func (v *Volume) Link(oldname, newname string) error
  • func (v *Volume) Lstat(name string) (fs.FileInfo, error)
  • func (v *Volume) Mkdir(name string, perm fs.FileMode) error
  • func (v *Volume) MkdirAll(p string, perm fs.FileMode) error
  • func (v *Volume) Open(name string) (fs.File, error)
  • func (v *Volume) OpenFile(name string, flag int, perm fs.FileMode) (*volfs.File, error)
  • func (v *Volume) ReadDir(name string) ([]fs.DirEntry, error)
  • func (v *Volume) ReadFile(name string) ([]byte, error)
  • func (v *Volume) Readlink(name string) (string, error)
  • func (v *Volume) Remove(name string) error
  • func (v *Volume) RemoveAll(p string) error
  • func (v *Volume) Rename(oldpath, newpath string) error
  • func (v *Volume) Stat(name string) (fs.FileInfo, error)
  • func (v *Volume) StatFS() (volfs.VolumeInfo, error)
  • func (v *Volume) Symlink(oldname, newname string) error
  • func (v *Volume) Type() fstype.Type
  • func (v *Volume) Unmount() error
  • func (v *Volume) WriteFile(name string, data []byte, perm fs.FileMode) error

Types

type Volume

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

Volume implements fs.Volume for an XFS partition.

func Open

func Open(ra io.ReaderAt, offset, size int64) (*Volume, error)

Open parses the XFS superblock and AG headers from the given partition bounds and returns a ready-to-use Volume.

func (*Volume) Chmod

func (v *Volume) Chmod(name string, mode fs.FileMode) error

func (*Volume) Chown

func (v *Volume) Chown(name string, uid, gid int) error

func (*Volume) Chtimes

func (v *Volume) Chtimes(name string, atime, mtime time.Time) error

func (*Volume) Create

func (v *Volume) Create(name string) (*volfs.File, error)

func (*Volume) Link

func (v *Volume) Link(oldname, newname string) error

func (*Volume) Lstat

func (v *Volume) Lstat(name string) (fs.FileInfo, error)

func (*Volume) Mkdir

func (v *Volume) Mkdir(name string, perm fs.FileMode) error

func (*Volume) MkdirAll

func (v *Volume) MkdirAll(p string, perm fs.FileMode) error

func (*Volume) Open

func (v *Volume) Open(name string) (fs.File, error)

func (*Volume) OpenFile

func (v *Volume) OpenFile(name string, flag int, perm fs.FileMode) (*volfs.File, error)

func (*Volume) ReadDir

func (v *Volume) ReadDir(name string) ([]fs.DirEntry, error)

func (*Volume) ReadFile

func (v *Volume) ReadFile(name string) ([]byte, error)

func (*Volume) Readlink

func (v *Volume) Readlink(name string) (string, error)

func (*Volume) Remove

func (v *Volume) Remove(name string) error

func (*Volume) RemoveAll

func (v *Volume) RemoveAll(p string) error

func (*Volume) Rename

func (v *Volume) Rename(oldpath, newpath string) error

func (*Volume) Stat

func (v *Volume) Stat(name string) (fs.FileInfo, error)

func (*Volume) StatFS

func (v *Volume) StatFS() (volfs.VolumeInfo, error)

func (*Volume) Symlink

func (v *Volume) Symlink(oldname, newname string) error

func (*Volume) Type

func (v *Volume) Type() fstype.Type

Type returns "xfs".

func (*Volume) Unmount

func (v *Volume) Unmount() error

Unmount flushes all dirty blocks and inodes to the backing store, then releases all in-memory state.

func (*Volume) WriteFile

func (v *Volume) WriteFile(name string, data []byte, perm fs.FileMode) error