Vehicle_Road_Counter/external/paho.mqtt.c/test/python/test2.py

74 lines
2.5 KiB
Python

import paho_mqtt3a as mqttv3, time, random
import contextlib
print dir(mqttv3)
hostname = "localhost"
clientid = "myclientid"
topic = "test2_topic"
def deliveryComplete(context, msgid):
print "deliveryComplete", msgid
def connectionLost(context, cause):
print "connectionLost"
print "rc from reconnect is", mqttv3.connect(self.client)
def messageArrived(context, topicName, message):
print "messageArrived", message
#print "clientid", context
#print "topicName", topicName
return 1
def onSuccess(context, successData):
print "onSuccess for", context["clientid"], context["state"], successData
responseOptions = {"context": context, "onSuccess": onSuccess, "onFailure" : onFailure}
#responseOptions = {"context": context}
if context["state"] == "connecting":
context["state"] = "subscribing"
print "rc from subscribe is", mqttv3.subscribe(client, topic, 2, responseOptions)
elif context["state"] == "subscribing":
context["state"] = "publishing qos 0"
print "rc from publish is", mqttv3.send(client, topic, "a QoS 0 message", 0, 0, responseOptions)
elif context["state"] == "publishing qos 0":
context["state"] = "publishing qos 1"
print "rc from publish is", mqttv3.send(client, topic, "a QoS 1 message", 1, 0, responseOptions)
elif context["state"] == "publishing qos 1":
context["state"] = "publishing qos 2"
print "rc from publish is", mqttv3.send(client, topic, "a QoS 2 message", 2, 0, responseOptions)
elif context["state"] == "publishing qos 2":
context["state"] = "finished"
print "leaving onSuccess"
def onFailure(context, failureData):
print "onFailure for", context["clientid"]
context["state"] = "finished"
noclients = 1
myclientid = None
clients = []
for i in range(noclients):
myclientid = clientid+str(i)
rc, client = mqttv3.create("tcp://"+hostname+":1883", myclientid)
#print "client is", hex(client)
print "rc from create is", rc
print "rc from setcallbacks is", mqttv3.setcallbacks(client, client, connectionLost, messageArrived, deliveryComplete)
context = {"client" : client, "clientid" : clientid, "state" : "connecting"}
print "rc from connect is", mqttv3.connect(client, {"context": context, "onSuccess": onSuccess, "onFailure": onFailure})
clients.append(context)
while [x for x in clients if x["state"] != "finished"]:
print [x for x in clients if x["state"] != "finished"]
time.sleep(1)
for client in clients:
if mqttv3.isConnected(client["client"]):
print "rc from disconnect is", mqttv3.disconnect(client["client"], 1000)
time.sleep(1)
mqttv3.destroy(client["client"])
print "after destroy"