fs

type File ¶

type File interface {
	io.WriteCloser
	Sync()
}

File is a writeable file.

type Filesys ¶

type Filesys interface {
	Open(fname string) ReadFile
	List() []string

	Create(fname string) File
	Delete(fname string)
	Truncate(fname string)
	Rename(src, dst string)
	AtomicCreateWith(fname string, data []byte)

	// performance counters
	GetStats() Stats
}

Filesys is a database-specific API for accessing the file system.

Note that an instance of this interface only exposes a single directory (there are no directory names in these methods).

Callers are expected to follow some rules when calling this API:

Open:      fname should exist
Create:    fname should not exist
Delete:    fname should exist
Truncate:  fname should exist

func DirFs(basedir string) Filesys

func FromAfero(fs afero.Fs) Filesys

func MemFs() Filesys

type ReadFile ¶

type ReadFile interface {
	Size() int
	ReadAt(offset int, length int) []byte
	io.ReadCloser
}

ReadFile is a read-only file.

type Stats ¶

type Stats struct {
	ReadOps    int
	ReadBytes  int
	WriteOps   int
	WriteBytes int
}

Stats holds some basic stats about what filesystem operations have been issued.