Golang Dict.MustGetInt方法代码示例

func (d *device) AdvertiseIBeaconData(data []byte) error {
	var utsname xpc.Utsname
	xpc.Uname(&utsname)

	var rsp xpc.Dict

	if utsname.Release >= "14." {
		l := len(data)
		buf := bytes.NewBuffer([]byte{byte(l + 5), 0xFF, 0x4C, 0x00, 0x02, byte(l)})
		buf.Write(data)
		rsp = d.sendReq(8, xpc.Dict{"kCBAdvDataAppleMfgData": buf.Bytes()})
	} else {
		rsp = d.sendReq(8, xpc.Dict{"kCBAdvDataAppleBeaconKey": data})
	}

	if res := rsp.MustGetInt("kCBMsgArgResult"); res != 0 {
		return errors.New("FIXME: Advertise error")
	}

	return nil
}

// process device events and asynchronous errors
// (implements XpcEventHandler)
func (d *device) HandleXpcEvent(event xpc.Dict, err error) {
	if err != nil {
		log.Println("error:", err)
		return
	}

	id := event.MustGetInt("kCBMsgId")
	args := event.MustGetDict("kCBMsgArgs")
	//log.Printf(">> %d, %v", id, args)

	switch id {
	case // device event
		6,  // StateChanged
		16, // AdvertisingStarted
		17, // AdvertisingStopped
		18: // ServiceAdded
		d.rspc <- message{id: id, args: args}

	case
		19, // ReadRequest
		20, // WriteRequest
		21, // Subscribe
		22, // Unubscribe
		23: // Confirmation
		d.respondToRequest(id, args)

	case 37: // PeripheralDiscovered
		xa := args.MustGetDict("kCBMsgArgAdvertisementData")
		if len(xa) == 0 {
			return
		}
		u := UUID{args.MustGetUUID("kCBMsgArgDeviceUUID")}
		a := &Advertisement{
			LocalName:        xa.GetString("kCBAdvDataLocalName", args.GetString("kCBMsgArgName", "")),
			TxPowerLevel:     xa.GetInt("kCBAdvDataTxPowerLevel", 0),
			ManufacturerData: xa.GetBytes("kCBAdvDataManufacturerData", nil),
		}

		rssi := args.MustGetInt("kCBMsgArgRssi")

		if xu, ok := xa["kCBAdvDataServiceUUIDs"]; ok {
			for _, xs := range xu.(xpc.Array) {
				s := UUID{reverse(xs.([]byte))}
				a.Services = append(a.Services, s)
			}
		}
		if xsds, ok := xa["kCBAdvDataServiceData"]; ok {
			xsd := xsds.(xpc.Array)
			for i := 0; i < len(xsd); i += 2 {
				sd := ServiceData{
					UUID: UUID{xsd[i].([]byte)},
					Data: xsd[i+1].([]byte),
				}
				a.ServiceData = append(a.ServiceData, sd)
			}
		}
		if d.peripheralDiscovered != nil {
			go d.peripheralDiscovered(&peripheral{id: xpc.UUID(u.b), d: d}, a, rssi)
		}

	case 38: // PeripheralConnected
		u := UUID{args.MustGetUUID("kCBMsgArgDeviceUUID")}
		p := &peripheral{
			id:    xpc.UUID(u.b),
			d:     d,
			reqc:  make(chan message),
			rspc:  make(chan message),
			quitc: make(chan struct{}),
			sub:   newSubscriber(),
		}
		d.plistmu.Lock()
		d.plist[u.String()] = p
		d.plistmu.Unlock()
		go p.loop()

		if d.peripheralConnected != nil {
			go d.peripheralConnected(p, nil)
		}

	case 40: // PeripheralDisconnected
		u := UUID{args.MustGetUUID("kCBMsgArgDeviceUUID")}
		d.plistmu.Lock()
		p := d.plist[u.String()]
		delete(d.plist, u.String())
		d.plistmu.Unlock()
		if d.peripheralDisconnected != nil {
			d.peripheralDisconnected(p, nil) // TODO: Get Result as error?
		}
		close(p.quitc)

	case // Peripheral events
		54, // RSSIRead
		55, // ServiceDiscovered
		62, // IncludedServiceDiscovered
		63, // CharacteristicsDiscovered
		70, // CharacteristicRead
		71, // CharacteristicWritten
		73, // NotifyValueSet
//.........这里部分代码省略.........

func (d *device) respondToRequest(id int, args xpc.Dict) {

	switch id {
	case 19: // ReadRequest
		u := UUID{args.MustGetUUID("kCBMsgArgDeviceUUID")}
		t := args.MustGetInt("kCBMsgArgTransactionID")
		a := args.MustGetInt("kCBMsgArgAttributeID")
		o := args.MustGetInt("kCBMsgArgOffset")

		attr := d.attrs[a]
		v := attr.value
		if v == nil {
			c := newCentral(d, u)
			req := &ReadRequest{
				Request: Request{Central: c},
				Cap:     int(c.mtu - 1),
				Offset:  o,
			}
			rsp := newResponseWriter(int(c.mtu - 1))
			if c, ok := attr.pvt.(*Characteristic); ok {
				c.rhandler.ServeRead(rsp, req)
				v = rsp.bytes()
			}
		}

		d.sendCmd(13, xpc.Dict{
			"kCBMsgArgAttributeID":   a,
			"kCBMsgArgData":          v,
			"kCBMsgArgTransactionID": t,
			"kCBMsgArgResult":        0,
		})

	case 20: // WriteRequest
		u := UUID{args.MustGetUUID("kCBMsgArgDeviceUUID")}
		t := args.MustGetInt("kCBMsgArgTransactionID")
		a := 0
		noRsp := false
		xxws := args.MustGetArray("kCBMsgArgATTWrites")
		for _, xxw := range xxws {
			xw := xxw.(xpc.Dict)
			if a == 0 {
				a = xw.MustGetInt("kCBMsgArgAttributeID")
			}
			o := xw.MustGetInt("kCBMsgArgOffset")
			i := xw.MustGetInt("kCBMsgArgIgnoreResponse")
			b := xw.MustGetBytes("kCBMsgArgData")
			_ = o
			attr := d.attrs[a]
			c := newCentral(d, u)
			r := Request{Central: c}
			attr.pvt.(*Characteristic).whandler.ServeWrite(r, b)
			if i == 1 {
				noRsp = true
			}

		}
		if noRsp {
			break
		}
		d.sendCmd(13, xpc.Dict{
			"kCBMsgArgAttributeID":   a,
			"kCBMsgArgData":          nil,
			"kCBMsgArgTransactionID": t,
			"kCBMsgArgResult":        0,
		})

	case 21: // subscribed
		u := UUID{args.MustGetUUID("kCBMsgArgDeviceUUID")}
		a := args.MustGetInt("kCBMsgArgAttributeID")
		attr := d.attrs[a]
		c := newCentral(d, u)
		d.subscribers[u.String()] = c
		c.startNotify(attr, c.mtu)

	case 22: // unubscribed
		u := UUID{args.MustGetUUID("kCBMsgArgDeviceUUID")}
		a := args.MustGetInt("kCBMsgArgAttributeID")
		attr := d.attrs[a]
		if c := d.subscribers[u.String()]; c != nil {
			c.stopNotify(attr)
		}

	case 23: // notificationSent
	}
}