Function mlock

mlock_unix.go:8–18

mlock locks memory of db file

(db *DB, fileSize int)

// mlock locks memory of db file
func mlock(db *DB, fileSize int) error {
	sizeToLock := fileSize
	if sizeToLock > db.datasz {
		// Can't lock more than mmaped slice
		sizeToLock = db.datasz
	}
	if err := unix.Mlock(db.dataref[:sizeToLock]); err != nil {
		return err
	}
	return nil
}

// munlock unlocks memory of db file
func munlock(db *DB, fileSize int) error {