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Golang MqttClient.StartSubscription方法代码示例

本文整理汇总了Golang中git/eclipse/org/gitroot/paho/org/eclipse/paho/mqtt/golang/git.MqttClient.StartSubscription方法的典型用法代码示例。如果您正苦于以下问题:Golang MqttClient.StartSubscription方法的具体用法?Golang MqttClient.StartSubscription怎么用?Golang MqttClient.StartSubscription使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在git/eclipse/org/gitroot/paho/org/eclipse/paho/mqtt/golang/git.MqttClient的用法示例。


在下文中一共展示了MqttClient.StartSubscription方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: Subscribe

func Subscribe(client *MQTT.MqttClient, topic string) {
	filter, _ := MQTT.NewTopicFilter(topic, byte(MQTT.QOS_ZERO))
	if receipt, err := client.StartSubscription(f, filter); err != nil {
		fmt.Println(err)
		os.Exit(1)
	} else {
		<-receipt
	}
}
开发者ID:hakobera,项目名称:osx-cpu-temp,代码行数:9,代码来源:main.go

示例2: Subscribe

func Subscribe(client *MQTT.MqttClient, topic string) error {
	topicName := config.user + "/" + topic
	// 無料枠はQoS 0のみ
	qos := 0

	// Subscribeするtopicを設定します
	topicFilter, err := MQTT.NewTopicFilter(topicName, byte(qos))
	if err != nil {
		return err
	}

	// Subscribeします
	// onMessageReceived はメッセージが届いたら呼び出されるコールバックです
	_, err = client.StartSubscription(onMessageReceived, topicFilter)
	if err != nil {
		return err
	}

	// そのままではプロセスが終わってしまいますので、待ち受けます
	for {
		time.Sleep(1 * time.Second)
	}
}
开发者ID:kyokomi-sandbox,项目名称:sandbox,代码行数:23,代码来源:mqtt.go

示例3: mainLoop


//.........这里部分代码省略.........
				break
			} else {
				total++
			}
			// At least one output ports are opened
			if total >= 1 && waitCh != nil {
				waitCh <- true
			}
		}
	}()

	log.Println("Waiting for options to arrive...")
	var (
		ip            [][]byte
		clientOptions *mqtt.ClientOptions
		client        *mqtt.MqttClient
		defaultTopic  string
		qos           mqtt.QoS
	)

	// Setup socket poll items
	poller := zmq.NewPoller()
	poller.Add(optsPort, zmq.POLLIN)
	poller.Add(tmplPort, zmq.POLLIN)

	for {
		sockets, err := poller.Poll(-1)
		if err != nil {
			log.Println("Error polling ports:", err.Error())
			continue
		}
		for _, socket := range sockets {
			if socket.Socket == nil {
				log.Println("ERROR: could not find socket in polling items array")
				continue
			}
			ip, err = socket.Socket.RecvMessageBytes(0)
			if err != nil {
				log.Println("Error receiving message:", err.Error())
				continue
			}
			if !runtime.IsValidIP(ip) || !runtime.IsPacket(ip) {
				log.Println("Invalid IP:", ip)
				continue
			}
			switch socket.Socket {
			case optsPort:
				err = json.Unmarshal(ip[1], &options)
				if err != nil {
					log.Println("ERROR: failed to unmarshal options:", err.Error())
					continue
				}
				clientOptions, defaultTopic, qos, err = helper.ParseOptionsURI(options.OptionsURI)
				if err != nil {
					log.Printf("Failed to parse connection uri. Error: %s", err.Error())
					continue
				}
				log.Println("Options specified:", options)
			case tmplPort:
				err = json.Unmarshal(ip[1], &propTemplate)
				if err != nil {
					log.Println("ERROR: failed to unmarshal template:", err.Error())
					continue
				}
				log.Printf("Template specified: %+v", propTemplate)

			default:
				log.Println("ERROR: IP from unhandled socket received!")
				continue
			}

			if defaultTopic != "" && clientOptions != nil && propTemplate != nil {
				log.Println("Component configured. Moving on...")
				break
			}
		}

		client = mqtt.NewClient(clientOptions)
		if _, err = client.Start(); err != nil {
			log.Printf("Failed to create MQTT client. Error: %s", err.Error())
			continue
		}

		defer client.Disconnect(1e6)

		optsPort.Close()
		tmplPort.Close()
		break
	}

	log.Println("Started...")
	topicFilter, err := mqtt.NewTopicFilter(defaultTopic, byte(qos))
	utils.AssertError(err)
	_, err = client.StartSubscription(messageHandler, topicFilter)
	utils.AssertError(err)

	ticker := time.Tick(1 * time.Second)
	for _ = range ticker {
	}
}
开发者ID:voxadam,项目名称:cascades-caf,代码行数:101,代码来源:main.go


注:本文中的git/eclipse/org/gitroot/paho/org/eclipse/paho/mqtt/golang/git.MqttClient.StartSubscription方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。