101 lines
1.9 KiB
Go
101 lines
1.9 KiB
Go
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package main
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import (
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"errors"
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"fmt"
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log "github.com/sirupsen/logrus"
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"io"
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"net/http"
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"net/rpc"
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"net/rpc/jsonrpc"
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"os"
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"time"
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)
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type JSONRPCServer struct {
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*rpc.Server
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}
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func NewJSONRPCServer() *JSONRPCServer {
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return &JSONRPCServer{rpc.NewServer()}
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}
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func (s *JSONRPCServer) ServeHTTP(w http.ResponseWriter, req *http.Request) {
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log.Println("rpc server got a request")
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conn, _, err := w.(http.Hijacker).Hijack()
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if err != nil {
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log.Print("rpc hijacking ", req.RemoteAddr, ": ", err.Error())
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return
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}
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io.WriteString(conn, "HTTP/1.0 200 Connected to Go JSON-RPC\n\n")
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codec := jsonrpc.NewServerCodec(conn)
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log.Println("ServeCodec")
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s.Server.ServeCodec(codec)
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log.Println("finished serving request")
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}
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type Args struct {
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A, B int
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}
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type Quotient struct {
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Quo, Rem int
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}
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type Arith int
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func (t *Arith) Multiply(args *Args, reply *int) error {
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*reply = args.A * args.B
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return nil
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}
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func (t *Arith) Divide(args *Args, quo *Quotient) error {
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if args.B == 0 {
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return errors.New("divide by zero")
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}
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quo.Quo = args.A / args.B
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quo.Rem = args.A % args.B
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return nil
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}
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func main() {
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//log.SetFormatter(&log.JSONFormatter{})
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// Output to stdout instead of the default stderr
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// Can be any io.Writer, see below for File example
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log.SetOutput(os.Stdout)
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// Only log the warning severity or above.
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//log.SetLevel(log.WarnLevel)
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log.Infof("starting up")
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go runHttpServer()
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running := true
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for running {
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time.Sleep(1 * time.Second)
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}
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}
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func runHttpServer() {
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js := NewJSONRPCServer()
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arith := new(Arith)
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js.Register(arith)
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port := 8080
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listenaddr := fmt.Sprintf("0.0.0.0:%d", port)
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s := &http.Server{
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Addr: listenaddr,
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Handler: js,
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ReadTimeout: 10 * time.Second,
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WriteTimeout: 10 * time.Second,
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MaxHeaderBytes: 1 << 20,
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}
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log.Infof("starting up http server %s", listenaddr)
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log.Fatal(s.ListenAndServe())
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}
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