func mqttWorker(c *client.Client) {
// Subscribe to topics.
err := c.Subscribe(&client.SubscribeOptions{
SubReqs: []*client.SubReq{
&client.SubReq{
TopicFilter: []byte("fgdata"),
QoS: mqtt.QoS0,
// Define the processing of the message handler.
Handler: func(topicName, message []byte) {
wmux.Lock()
fgdata = string(message)
lastseen = time.Now().String()
wmux.Unlock()
},
},
&client.SubReq{
TopicFilter: []byte("light1"),
QoS: mqtt.QoS0,
// Define the processing of the message handler.
Handler: func(topicName, message []byte) {
wmux.Lock()
light1 = string(message)
light1ls = time.Now().String()
wmux.Unlock()
},
},
},
})
if err != nil {
fmt.Println("Error", err)
}
}
func StartMQTTSender(MQTTServerAddress string, MQTTSendChan chan *lib.PostMessage, channel_name string) chan bool {
close_chan := make(chan bool)
go func() {
defer func() {
if err := recover(); err != nil {
utils.Log.Println(err)
debug.PrintStack()
}
}()
var post_message *lib.PostMessage
var cli *client.Client
var err error
cli, err = ConnectToMQTTServer(MQTTServerAddress)
if err != nil {
utils.Log.Println("Connect to MQTT Server failed:", err)
return
}
for {
select {
case <-close_chan:
close_chan <- true
utils.Log.Printf("Quit MQTT Sender worker.")
return
case post_message = <-MQTTSendChan:
message_json_buffer, err := ffjson.Marshal(post_message)
if err != nil {
utils.Log.Println()
}
err = cli.Publish(&client.PublishOptions{
QoS: mqtt.QoS0,
TopicName: []byte(channel_name),
Message: []byte(message_json_buffer),
})
if err != nil {
utils.Log.Println("Publish to MQTT Failed:", err)
utils.Log.Println("Try to connect MQTT Server.")
cli, err = ConnectToMQTTServer(MQTTServerAddress)
if err != nil {
utils.Log.Println("Connect to MQTT Server failed:", err)
}
}
utils.Log.Printf("Send message to MQTT Server: %s, Length: %d\n", MQTTServerAddress, len(message_json_buffer))
ffjson.Pool(message_json_buffer)
}
}
}()
return close_chan
}
// quit quits this process.
func quit(cli *client.Client) {
// Disconnect the Network Connection.
cli.Disconnect()
// Terminate the Client.
cli.Terminate()
// Exit.
exit(0)
}