mmap

Documentation

Index

• func MakeTagger(fpath string) (wpk.Tagger, error)
• type MappedFile
  • func NewMappedFile(fwpk *os.File, ts wpk.TagsetRaw) (f *MappedFile, err error)
  • func (f *MappedFile) Close() error
  • func (f *MappedFile) Stat() (fs.FileInfo, error)
• type Tagger
  • func (tgr *Tagger) Close() error
  • func (tgr *Tagger) OpenTagset(ts wpk.TagsetRaw) (wpk.PkgFile, error)

Functions

func MakeTagger

func MakeTagger(fpath string) (wpk.Tagger, error)

MakeTagger creates Tagger object to get access to package nested files.

Types

type MappedFile

type MappedFile struct {
	wpk.FileReader

	mm.MMap
	// contains filtered or unexported fields
}

MappedFile structure gives access to nested into package file by memory mapping. wpk.PkgFile interface implementation.

func NewMappedFile

func NewMappedFile(fwpk *os.File, ts wpk.TagsetRaw) (f *MappedFile, err error)

NewMappedFile maps nested to package file based on given tags slice.

func (*MappedFile) Close

func (f *MappedFile) Close() error

Close unmaps memory and closes mapped memory handle.

func (*MappedFile) Stat

func (f *MappedFile) Stat() (fs.FileInfo, error)

Stat is for fs.File interface compatibility.

type Tagger

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

Tagger is object to get access to package nested files by memory mapping of wpk-file.

func (*Tagger) Close

func (tgr *Tagger) Close() error

Close file handle. This function must be called only for root object, not subdirectories. It has no effect otherwise. io.Closer implementation.

func (*Tagger) OpenTagset

func (tgr *Tagger) OpenTagset(ts wpk.TagsetRaw) (wpk.PkgFile, error)

OpenTagset creates file object to give access to nested into package file by given tagset.