func (t *Arith) Div(args *msg.ArithRequest, reply *msg.ArithResponse) error {
if args.GetB() == 0 {
return errors.New("divide by zero")
}
reply.C = proto.Int32(args.GetA() / args.GetB())
return nil
}
func (t *Arith) Mul(args *msg.ArithRequest, reply *msg.ArithResponse) error {
reply.C = proto.Int32(args.GetA() * args.GetB())
return nil
}
