Example #1
0
func (d *delegate) Initialize(ctx application.Context) {
	req, ptr := discovery.CreateMessagePipeForDiscovery()
	ctx.ConnectToApplication("https://mojo.v.io/discovery.mojo").ConnectToService(&req)

	ad := discovery.Advertisement{
		InterfaceName: "v.io/discovery.T",
		Addresses:     []string{"localhost:1000"},
		Attributes:    &map[string]string{"foo": "abc"},
		Attachments:   &map[string][]byte{"bar": []byte{1, 2, 3}},
	}
	dProxy := discovery.NewDiscoveryProxy(ptr, bindings.GetAsyncWaiter())
	id, closerPtr, e1, e2 := dProxy.Advertise(ad, nil)
	if e1 != nil || e2 != nil {
		log.Printf("Failed to advertise: %v, %v", e1, e2)
		return
	}
	log.Printf("Advertising %x...", *id)

	d.stop = func() {
		cProxy := discovery.NewCloserProxy(*closerPtr, bindings.GetAsyncWaiter())
		cProxy.Close()
		cProxy.Close_Proxy()

		dProxy.Close_Proxy()
	}
}
Example #2
0
func scan(d mojom.Discovery, query string) (<-chan mojom.Update_Pointer, func(), error) {
	ch := make(chan mojom.Update_Pointer, 10)
	handler := &mockScanHandler{ch}
	req, ptr := mojom.CreateMessagePipeForScanHandler()
	stub := mojom.NewScanHandlerStub(req, handler, bindings.GetAsyncWaiter())

	closer, e1, e2 := d.Scan(query, ptr)
	if e1 != nil {
		close(ch)
		return nil, nil, errors.New(e1.Msg)
	}
	if e2 != nil {
		close(ch)
		return nil, nil, e2
	}

	wg := new(sync.WaitGroup)
	wg.Add(1)
	go func() {
		defer wg.Done()
		for {
			if err := stub.ServeRequest(); err != nil {
				connErr, ok := err.(*bindings.ConnectionError)
				if !ok || !connErr.Closed() {
					log.Println(err)
				}
				break
			}
		}
	}()

	stop := func() {
		p := mojom.NewCloserProxy(*closer, bindings.GetAsyncWaiter())
		p.Close()
		p.Close_Proxy()
		stub.Close()
		wg.Wait()
		close(ch)
	}
	return ch, stop, nil
}
Example #3
0
func (d *delegate) Initialize(ctx application.Context) {
	req, ptr := discovery.CreateMessagePipeForDiscovery()
	ctx.ConnectToApplication("https://mojo.v.io/discovery.mojo").ConnectToService(&req)

	scanHandlerReq, scanHandlerPtr := discovery.CreateMessagePipeForScanHandler()
	scanHandlerStub := discovery.NewScanHandlerStub(scanHandlerReq, &scanHandler{}, bindings.GetAsyncWaiter())

	dProxy := discovery.NewDiscoveryProxy(ptr, bindings.GetAsyncWaiter())
	closerPtr, e1, e2 := dProxy.Scan(`v.InterfaceName="v.io/discovery.T"`, scanHandlerPtr)
	if e1 != nil || e2 != nil {
		log.Printf("Failed to scan: %v, %v", e1, e2)
		scanHandlerStub.Close()
		dProxy.Close_Proxy()
		return
	}

	go func() {
		for {
			if err := scanHandlerStub.ServeRequest(); err != nil {
				connErr, ok := err.(*bindings.ConnectionError)
				if !ok || !connErr.Closed() {
					log.Println(err)
				}
				break
			}
		}
	}()

	d.stop = func() {
		cProxy := discovery.NewCloserProxy(*closerPtr, bindings.GetAsyncWaiter())
		cProxy.Close()
		cProxy.Close_Proxy()

		scanHandlerStub.Close()
		dProxy.Close_Proxy()
	}
}
func AppTestGlobalDiscoveryBasic(t *testing.T, mctx application.Context) {
	ads := []mojom.Advertisement{
		{
			Id:            &[internal.AdIdLen]uint8{1, 2, 3},
			Addresses:     []string{"/h1:123/x"},
			InterfaceName: "foo/bar/baz",
		},
		{
			Addresses:     []string{"/h1:123/y"},
			InterfaceName: "foo/bar/baz",
		},
	}

	d1 := newGlobalDiscovery(mctx, 0)
	defer d1.Close_Proxy()

	var stops []func()
	for i, ad := range ads {
		id, closer, e1, e2 := d1.Advertise(ad, nil)
		if e1 != nil || e2 != nil {
			t.Fatalf("ad[%d]: failed to advertise: %v, %v", i, e1, e2)
		}
		if id == nil {
			t.Errorf("ad[%d]: got nil id", i)
			continue
		}
		if ad.Id == nil {
			ads[i].Id = id
		} else if *id != *ad.Id {
			t.Errorf("ad[%d]: got ad id %v, but wanted %v", i, *id, *ad.Id)
		}

		stop := func() {
			p := mojom.NewCloserProxy(*closer, bindings.GetAsyncWaiter())
			p.Close()
			p.Close_Proxy()
		}
		stops = append(stops, stop)
	}

	// Make sure none of advertisements are discoverable by the same discovery instance.
	if err := scanAndMatch(d1, ``); err != nil {
		t.Error(err)
	}

	// Create a new discovery instance. All advertisements should be discovered with that.
	d2 := newGlobalDiscovery(mctx, 1*time.Millisecond)
	defer d2.Close_Proxy()

	if err := scanAndMatch(d2, `k="01020300000000000000000000000000"`, ads[0]); err != nil {
		t.Error(err)
	}
	if err := scanAndMatch(d2, ``, ads...); err != nil {
		t.Error(err)
	}

	// Open a new scan channel and consume expected advertisements first.
	scanCh, scanStop, err := scan(d2, `k="01020300000000000000000000000000"`)
	if err != nil {
		t.Fatal(err)
	}
	defer scanStop()

	update := <-scanCh
	if err := matchFound([]mojom.Update_Pointer{update}, ads[0]); err != nil {
		t.Error(err)
	}

	// Make sure scan returns the lost advertisement when advertising is stopped.
	stops[0]()

	update = <-scanCh
	if err := matchLost([]mojom.Update_Pointer{update}, ads[0]); err != nil {
		t.Error(err)
	}

	// Also it shouldn't affect the other.
	if err := scanAndMatch(d2, fmt.Sprintf(`k="%s"`, hex.EncodeToString(ads[1].Id[:])), ads[1]); err != nil {
		t.Error(err)
	}

	// Stop advertising the remaining one; Shouldn't discover any advertisements.
	stops[1]()
	if err := scanAndMatch(d2, ``); err != nil {
		t.Error(err)
	}
}