Function munlock

mlock_unix.go:21–36

munlock unlocks memory of db file

(db *DB, fileSize int)

// munlock unlocks memory of db file
func munlock(db *DB, fileSize int) error {
	if db.dataref == nil {
		return nil
	}

	sizeToUnlock := fileSize
	if sizeToUnlock > db.datasz {
		// Can't unlock more than mmaped slice
		sizeToUnlock = db.datasz
	}

	if err := unix.Munlock(db.dataref[:sizeToUnlock]); err != nil {
		return err
	}
	return nil
}