def receive(self,addr_source, port_source):
code=0
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind((addr_source, port_source))
s.setblocking(0)
msgHandler=MsgHandler()
#a=time.time()
#time.sleep(5)
#b=time.time()
#print b-a
lastSend=time.time()
start_time=lastSend
number_node_activated=0
while True:
try:
#time.sleep(1)
#print str(time.time()-lastSend)
if (time.time()-lastSend)>COMMUNICATION_TIMEOUT and self.HasInit==True and lastSend!=start_time:
print 'lost connection with cluster head for : ' + str(time.time()-lastSend)
self.Change_to_spare_CH()
print 'change to spare cluster head: '+ str(self.clusterHead)
msg=msgHandler.Encode_CH_Change_Msg(self.clusterHead[0],self.clusterHead[1],self.clusterHead[2])
for eachNode in self.network:
code=self.send(eachNode[0], PORT, msg)
lastSend=time.time()
print 'Reset lastSend time: ' +str (lastSend)
data, addr = s.recvfrom(1024)
#print 'received' + data
type_msg=msgHandler.Decode(data)
if type_msg==1:
temp,code=msgHandler.Decode_CH_Change_Msg(data)
if code==0:
self.clusterHead=temp
self.RefreshNetwork(temp)
print '******************************'
print 'received: ' + str(temp)
print 'CH changed:'
print self.clusterHead
else:
print "error in decoding CH change msg."
elif type_msg==2:
temp,code=msgHandler.Decode_List_Info_Msg(data)
if code==0:
self.network=temp
self.clusterHead=temp[0]
lastSend=time.time()
print 'Received network info: '
print str(self.network)
print ' '
else:
def receive(self, addr_source, port_source):
print 'thread start'
code = 0
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind((addr_source, port_source))
msgHandler = MsgHandler()
while True:
data, addr = s.recvfrom(1024)
print 'received' + data
type_msg = msgHandler.Decode(data)
if type_msg == 1:
temp, code = msgHandler.Decode_CH_Change_Msg(data)
if code == 0:
self.clusterHead = temp
self.RefreshNetwork(temp)
print 'CH changed:' + self.clusterHead
else:
print "error in decoding CH change msg."
elif type_msg == 2:
temp, code = msgHandler.Decode_List_Info_Msg(data)
if code == 0:
self.network = temp
print self.network
else:
print "error in decoding list of info msg"
elif type_msg == 3:
temp, code = msgHandler.Decode_Info_Msg(data)
if code == 0:
print '-----------------3.--------'
Ischanged = self.RefreshNode(temp)
print temp
print Ischanged
else:
print 'Error in decoding info msg'
elif type_msg == 4:
temp, code = msgHandler.Decode_Sensor_Data(data)
if code == 0:
self.allSensorData = self.allSensorData + temp
with self.networkLock:
for i in range(len(self.network)):
if self.network[i][0][0] == self.addrCH:
self.network[i][0][3] = time.time()
print temp
else:
print 'Error in decoding sensor data'
elif type_msg == 0:
print 'error in decode message'
def receive(self,addr_source, port_source):
code=0
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind((addr_source, port_source))
msgHandler=MsgHandler()
while True:
data, addr = s.recvfrom(1024)
#print 'received' + data
type_msg=msgHandler.Decode(data)
if type_msg==1:
temp,code=msgHandler.Decode_CH_Change_Msg(data)
if code==0:
judge = self.calculateCoor(temp[2], self.coordinate)
if judge:
self.clusterHead=temp
self.RefreshNetwork(temp)
print '******************************'
print 'Received: CH change message: ' + str(temp)
else:
newInfo = [self.addr, self.energy, self.coor]
self.clusterHead = newInfo
self.RefreshNetwork(newInfo)
print '******************************'
print 'Received: CH change message: ' + str(newInfo)
print ' '
print 'CH is changed to: ' + str(self.clusterHead)
print ' '
else:
print "Error in decoding CH change msg."
print ' '
elif type_msg==2:
temp,code=msgHandler.Decode_List_Info_Msg(data)
if code==0:
self.network=temp
print 'Received: ' + addr_source
print self.network
else:
print "error in decoding list of info msg"
elif type_msg==3:
temp,code=msgHandler.Decode_Info_Msg(data)
if code==0:
Ischanged=self.RefreshNetwork(temp)
print '******************************'
#print temp[0]
print 'Received Info msg from: ' + str(temp[0])
print ' '
#print temp
#print Ischanged
else:
print 'Error in decoding info msg'
print ' '
elif type_msg==4:
temp,code=msgHandler.Decode_Sensor_Data(data)
if code==0:
self.allSensorData=self.allSensorData+temp
print '******************************'
print 'Received sensor data: ' + str(temp)
print ' '
else:
print 'Error in decoding sensor data'
print ' '
#TODO: boradcast response
elif type_msg==5:
addr_des,code=msgHandler.Decode_Broadcast_msg(data)
if code==0:
print '******************************'
print 'Received broadcast from:' + addr_des
print ' '
msg=msgHandler.Encode_Info_Msg(self.addr,self.energy,self.coordinate)
IsSent = self.send(addr_des, PORT, msg)
#print 'IsSent; ' + str(IsSent)
else:
print 'Error in decoding broadcast message.'
print ' '
elif type_msg==0:
print 'Error in decode message: ' + data
print ' '
#analyze data
# connect to the speicified address and port
# receive message
# analyze message
# store important information into the msg
# return action status code
# 0: success
# 1: fail
return code
