client_tcp.go

package main

import (
	"fmt"
	"log"
	"net"
	"net/rpc"

	"shared"
)

type Arith struct {
	client *rpc.Client
}

func (t *Arith) Multiply(a, b int) int {
	args := &shared.Args{a, b}
	var reply int
	err := t.client.Call("Arith.Multiply", args, &reply)
	if err != nil {
		log.Fatal("arith error", err)
	}
	return reply
}

func (t *Arith) Divide(a, b int) shared.Quotient {
	args := &shared.Args{a, b}
	var reply shared.Quotient
	err := t.client.Call("Arith.Divide", args, &reply)
	if err != nil {
		log.Fatal("arith error", err)
	}
	return reply
}

func main() {
	conn, err := net.Dial("tcp", "localhost:1234")
	if err != nil {
		log.Fatal("dial error", err)
	}

	arith := Arith{rpc.NewClient(conn)}

	fmt.Println(arith.Multiply(5, 6))
	fmt.Println(arith.Divide(500, 9))
}