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标题: 全局变量的问题 [打印本页]

作者: figofifa 时间: 2014-03-28 09:08
标题: 全局变量的问题
下面的多进程能够执行了，但提示NameError: global name 'connection' is not defined，是什么原因，我已经声明全局变量了。
def send_proc():
global connection
print '111111111111111111'
activeTestSequence = 0
while True:
      print '22222222222222222'
      print '【CMPP服务端】:发送链路检测消息'.decode('utf-8')
      activeTestCommandLength = 13
      activeTestCommand = 8
      activeTestSequence = activeTestSequence + 1

      MessageHeader = copy.deepcopy(MessageHeader_CMPP)
      MessageHeader[0].append(activeTestCommandLength)
      MessageHeader[1].append(activeTestCommand)
      MessageHeader[2].append(activeTestSequence)
      connection.send(packBody(MessageHeader))
      print '33333333333333333333333333333333'

def recv_proc():
global connection
print '4444444444444444444444444'
while True:
      print '5555555555555555555555'
      total_length_rsp = connection.recv(4)
      print '66666666666666666666666666666666'
      (total_length_rsp,) = struct.unpack('>i', total_length_rsp)
      print total_length_rsp, '-----------------------'
      data_rsp = ''
      data_rsp = connection.recv(total_length_rsp - 4)
      thread_Command_id = decomplieCommandId(data_rsp)
      #如果是链路检测消息，需要解包sequence，放到链路检测队列中去
      if thread_Command_id == 2147483656:
         print '【CMPP服务端端】:收到链路检测消息'.decode('utf-8')

def fork_proc():
print 'aaaaaaaaaaaaaaaaa'
reader = multiprocessing.Process(target = send_proc)
reader.start()
time.sleep(5)
print 'bbbbbbbbbbbbbbbbbb'
recever = multiprocessing.Process(target = recv_proc)
recever.start()

commandLength = 12 + 1 + 16 + 1
command_id = 2147483649
sequence_number = 2

status = '0'
#加密
m = hashlib.md5()
m.update(status + '\0' * 15)
authenticatorismg = m.digest()
#组包
struct.pack('16s', authenticatorismg)
version = 32

MessageHeader = copy.deepcopy(MessageHeader_CMPP)
CMPP_CONNECT = copy.deepcopy(CMPP_CONNECT_CMPP)

MessageHeader[0].append(commandLength)
MessageHeader[1].append(command_id)
MessageHeader[2].append(sequence_number)
CMPP_CONNECT_RESP_CMPP[0].append(int(status))
CMPP_CONNECT_RESP_CMPP[1].append(authenticatorismg)
CMPP_CONNECT_RESP_CMPP[2].append(version)
CMPP_CONNECT_RESP_CMPP[2].append(version)

if __name__=='__main__':

myHost = 'xx.xx.xx.xxx'
myPort = 8013
sock1 = socket(AF_INET, SOCK_STREAM)
sock1.bind((myHost, myPort))
sock1.listen(1)

#while True:
# print 'hhhhhhhhhhhh--------------------'
connection, address = sock1.accept()
# sock1.setblocking(0)
print 'zzzzzzzzzzzzzzzz--------------------'
print 'Server connected by', address
while True:
      print 'hhhhhhhhhafasdfasdf'
      total_length_rsp = connection.recv(4)
      print 'hhhhhhhhhvvvvvvvvvvvvvvvvvvvv'
      (total_length_rsp,) = struct.unpack('>i', total_length_rsp)
      print total_length_rsp
      data_rsp = ''
      data_rsp = connection.recv(total_length_rsp - 4)
      thread_Command_id = decomplieCommandId(data_rsp)
      print thread_Command_id
      #如果是登陆请求连接
      if thread_Command_id == 1:
         connection.send(packBody(MessageHeader + CMPP_CONNECT_RESP_CMPP))
         print "okkgggggggg"
         #break
         fork_proc()
         time.sleep(11)
      #connection.close()

作者: q1208c 时间: 2014-03-28 10:04
要给个值吧 ? 哪怕是 None 也行.

作者: openspace 时间: 2014-03-28 10:40
只声明没有定义？

作者: Jpython 时间: 2014-03-30 12:41
你只是声明个全局变量，没赋值。

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