/
client.go
45 lines (34 loc) · 1003 Bytes
/
client.go
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package main
import (
"context"
"flag"
"log"
"time"
"github.com/smallnest/rpcx/share"
example "github.com/bigdot123456/RPCWork"
"github.com/smallnest/rpcx/client"
)
var (
addr = flag.String("addr", "0.0.0.0:8972", "server address")
)
func main() {
flag.Parse()
d := client.NewPeer2PeerDiscovery("tcp@"+*addr, "")
option := client.DefaultOption
option.ReadTimeout = 10 * time.Second
xclient := client.NewXClient("Arith", client.Failtry, client.RandomSelect, d, option)
defer xclient.Close()
args := &example.Args{
A: 10,
B: 20,
}
reply := &example.Reply{}
ctx := context.WithValue(context.Background(), share.ReqMetaDataKey, map[string]string{"aaa": "from client"})
ctx = context.WithValue(ctx, share.ResMetaDataKey, make(map[string]string))
err := xclient.Call(ctx, "Mul", args, reply)
if err != nil {
log.Fatalf("failed to call: %v", err)
}
log.Printf("%d * %d = %d", args.A, args.B, reply.C)
log.Printf("received meta: %+v", ctx.Value(share.ResMetaDataKey))
}