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server.go
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server.go
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package main
import (
"io"
"log"
"net"
"google.golang.org/grpc"
pb "github.com/EDDYCJY/go-grpc-example/proto"
)
type StreamService struct{}
const (
PORT = "9002"
)
func main() {
server := grpc.NewServer()
pb.RegisterStreamServiceServer(server, &StreamService{})
lis, err := net.Listen("tcp", ":"+PORT)
if err != nil {
log.Fatalf("net.Listen err: %v", err)
}
server.Serve(lis)
}
func (s *StreamService) List(r *pb.StreamRequest, stream pb.StreamService_ListServer) error {
for n := 0; n <= 6; n++ {
err := stream.Send(&pb.StreamResponse{
Pt: &pb.StreamPoint{
Name: r.Pt.Name,
Value: r.Pt.Value + int32(n),
},
})
if err != nil {
return err
}
}
return nil
}
func (s *StreamService) Record(stream pb.StreamService_RecordServer) error {
for {
r, err := stream.Recv()
if err == io.EOF {
return stream.SendAndClose(&pb.StreamResponse{Pt: &pb.StreamPoint{Name: "gRPC Stream Server: Record", Value: 1}})
}
if err != nil {
return err
}
log.Printf("stream.Recv pt.name: %s, pt.value: %d", r.Pt.Name, r.Pt.Value)
}
return nil
}
func (s *StreamService) Route(stream pb.StreamService_RouteServer) error {
n := 0
for {
err := stream.Send(&pb.StreamResponse{
Pt: &pb.StreamPoint{
Name: "gPRC Stream Client: Route",
Value: int32(n),
},
})
if err != nil {
return err
}
r, err := stream.Recv()
if err == io.EOF {
return nil
}
if err != nil {
return err
}
n++
log.Printf("stream.Recv pt.name: %s, pt.value: %d", r.Pt.Name, r.Pt.Value)
}
return nil
}