blob: 8a1dad512897ee4606ffd7dca000fcd47f923bf5 [file] [log] [blame]
/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Binary server is an example server.
package main
import (
"context"
"fmt"
"log"
"net"
"sync"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
ecpb "google.golang.org/grpc/examples/features/proto/echo"
"google.golang.org/grpc/status"
)
var (
addrs = []string{":50051", ":50052"}
)
type ecServer struct {
addr string
}
func (s *ecServer) UnaryEcho(ctx context.Context, req *ecpb.EchoRequest) (*ecpb.EchoResponse, error) {
return &ecpb.EchoResponse{Message: fmt.Sprintf("%s (from %s)", req.Message, s.addr)}, nil
}
func (s *ecServer) ServerStreamingEcho(*ecpb.EchoRequest, ecpb.Echo_ServerStreamingEchoServer) error {
return status.Errorf(codes.Unimplemented, "not implemented")
}
func (s *ecServer) ClientStreamingEcho(ecpb.Echo_ClientStreamingEchoServer) error {
return status.Errorf(codes.Unimplemented, "not implemented")
}
func (s *ecServer) BidirectionalStreamingEcho(ecpb.Echo_BidirectionalStreamingEchoServer) error {
return status.Errorf(codes.Unimplemented, "not implemented")
}
func startServer(addr string) {
lis, err := net.Listen("tcp", addr)
if err != nil {
log.Fatalf("failed to listen: %v", err)
}
s := grpc.NewServer()
ecpb.RegisterEchoServer(s, &ecServer{addr: addr})
log.Printf("serving on %s\n", addr)
if err := s.Serve(lis); err != nil {
log.Fatalf("failed to serve: %v", err)
}
}
func main() {
var wg sync.WaitGroup
for _, addr := range addrs {
wg.Add(1)
go func(addr string) {
defer wg.Done()
startServer(addr)
}(addr)
}
wg.Wait()
}