Function GetPersistent

backend/cache/storage_persistent.go:42–62

GetPersistent returns a single instance for the specific store

(dbPath, chunkPath string, f *Features)

// GetPersistent returns a single instance for the specific store
func GetPersistent(dbPath, chunkPath string, f *Features) (*Persistent, error) {
	// write lock to create one
	boltMapMx.Lock()
	defer boltMapMx.Unlock()
	if b, ok := boltMap[dbPath]; ok {
		if !b.open {
			err := b.connect()
			if err != nil {
				return nil, err
			}
		}
		return b, nil
	}

	bb, err := newPersistent(dbPath, chunkPath, f)
	if err != nil {
		return nil, err
	}
	boltMap[dbPath] = bb
	return boltMap[dbPath], nil
}

type chunkInfo struct {
	Path   string