Esempio n. 1
0
func makeRequest(conn net.Conn, req *types.Request) (*types.Response, error) {

	// Write desired request
	err := types.WriteMessage(req, conn)
	if err != nil {
		return nil, err
	}

	// Write flush request
	err = types.WriteMessage(types.RequestFlush(), conn)
	if err != nil {
		return nil, err
	}

	// Read desired response
	var res = &types.Response{}
	err = types.ReadMessage(conn, res)
	if err != nil {
		return nil, err
	}

	// Read flush response
	var resFlush = &types.Response{}
	err = types.ReadMessage(conn, resFlush)
	if err != nil {
		return nil, err
	}
	if resFlush.Type != types.MessageType_Flush {
		return nil, errors.New(Fmt("Expected types.MessageType_Flush but got %v instead", resFlush.Type))
	}

	return res, nil
}
Esempio n. 2
0
func makeRequest(conn net.Conn, req *types.Request) (*types.Response, error) {
	var bufWriter = bufio.NewWriter(conn)

	// Write desired request
	err := types.WriteMessage(req, bufWriter)
	if err != nil {
		return nil, err
	}
	err = types.WriteMessage(types.ToRequestFlush(), bufWriter)
	if err != nil {
		return nil, err
	}
	err = bufWriter.Flush()
	if err != nil {
		return nil, err
	}

	// Read desired response
	var res = &types.Response{}
	err = types.ReadMessage(conn, res)
	if err != nil {
		return nil, err
	}
	var resFlush = &types.Response{}
	err = types.ReadMessage(conn, resFlush)
	if err != nil {
		return nil, err
	}
	if _, ok := resFlush.Value.(*types.Response_Flush); !ok {
		return nil, errors.New(Fmt("Expected flush response but got something else: %v", reflect.TypeOf(resFlush)))
	}

	return res, nil
}
Esempio n. 3
0
func (cli *socketClient) recvResponseRoutine(conn net.Conn) {

	r := bufio.NewReader(conn) // Buffer reads
	for {
		var res = &types.Response{}
		err := types.ReadMessage(r, res)
		if err != nil {
			cli.StopForError(err)
			return
		}
		switch r := res.Value.(type) {
		case *types.Response_Exception:
			// XXX After setting cli.err, release waiters (e.g. reqres.Done())
			cli.StopForError(errors.New(r.Exception.Error))
			return
		default:
			// log.Debug("Received response", "responseType", reflect.TypeOf(res), "response", res)
			err := cli.didRecvResponse(res)
			if err != nil {
				cli.StopForError(err)
				return
			}
		}
	}
}
Esempio n. 4
0
func main() {

	conn, err := Connect("unix://test.sock")
	if err != nil {
		Exit(err.Error())
	}

	// Read a bunch of responses
	go func() {
		counter := 0
		for {
			var res = &types.Response{}
			err := types.ReadMessage(conn, res)
			if err != nil {
				Exit(err.Error())
			}
			counter += 1
			if counter%1000 == 0 {
				fmt.Println("Read", counter)
			}
		}
	}()

	// Write a bunch of requests
	counter := 0
	for i := 0; ; i++ {
		var bufWriter = bufio.NewWriter(conn)
		var req = types.RequestEcho("foobar")

		err := types.WriteMessage(req, bufWriter)
		if err != nil {
			Exit(err.Error())
		}
		err = bufWriter.Flush()
		if err != nil {
			Exit(err.Error())
		}

		counter += 1
		if counter%1000 == 0 {
			fmt.Println("Write", counter)
		}
	}
}
Esempio n. 5
0
// Read requests from conn and deal with them
func (s *SocketServer) handleRequests(closeConn chan error, conn net.Conn, responses chan<- *types.Response) {
	var count int
	var bufReader = bufio.NewReader(conn)
	for {

		var req = &types.Request{}
		err := types.ReadMessage(bufReader, req)
		if err != nil {
			if err == io.EOF {
				closeConn <- err
			} else {
				closeConn <- fmt.Errorf("Error reading message: %v", err.Error())
			}
			return
		}
		s.appMtx.Lock()
		count++
		s.handleRequest(req, responses)
		s.appMtx.Unlock()
	}
}
Esempio n. 6
0
// Read requests from conn and deal with them
func handleRequests(mtx *sync.Mutex, app types.Application, closeConn chan error, conn net.Conn, responses chan<- *types.Response) {
	var count int
	var bufReader = bufio.NewReader(conn)
	for {

		var req = &types.Request{}
		err := types.ReadMessage(bufReader, req)
		if err != nil {
			if err == io.EOF {
				closeConn <- fmt.Errorf("Connection closed by client")
			} else {
				closeConn <- fmt.Errorf("Error in handleRequests: %v", err.Error())
			}
			return
		}
		mtx.Lock()
		count++
		handleRequest(app, req, responses)
		mtx.Unlock()
	}
}
Esempio n. 7
0
func TestStream(t *testing.T) {

	numAppendTxs := 200000

	// Start the listener
	_, err := server.StartListener("tcp://127.0.0.1:46658", NewDummyApplication())
	if err != nil {
		Exit(err.Error())
	}

	// Connect to the socket
	conn, err := Connect("tcp://127.0.0.1:46658")
	if err != nil {
		Exit(err.Error())
	}

	// Read response data
	done := make(chan struct{})
	go func() {
		counter := 0
		for {

			var res = &types.Response{}
			err := types.ReadMessage(conn, res)
			if err != nil {
				Exit(err.Error())
			}

			// Process response
			switch res.Type {
			case types.MessageType_AppendTx:
				counter += 1
				if res.Code != types.CodeType_OK {
					t.Error("AppendTx failed with ret_code", res.Code)
				}
				if counter > numAppendTxs {
					t.Fatal("Too many AppendTx responses")
				}
				t.Log("response", counter)
				if counter == numAppendTxs {
					go func() {
						time.Sleep(time.Second * 2) // Wait for a bit to allow counter overflow
						close(done)
					}()
				}
			case types.MessageType_Flush:
				// ignore
			default:
				t.Error("Unexpected response type", res.Type)
			}
		}
	}()

	// Write requests
	for counter := 0; counter < numAppendTxs; counter++ {
		// Send request
		var req = types.RequestAppendTx([]byte("test"))
		err := types.WriteMessage(req, conn)
		if err != nil {
			t.Fatal(err.Error())
		}

		// Sometimes send flush messages
		if counter%123 == 0 {
			t.Log("flush")
			err := types.WriteMessage(types.RequestFlush(), conn)
			if err != nil {
				t.Fatal(err.Error())
			}
		}
	}

	// Send final flush message
	err = types.WriteMessage(types.RequestFlush(), conn)
	if err != nil {
		t.Fatal(err.Error())
	}

	<-done
}