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.append(activeTestCommandLength)
MessageHeader.append(activeTestCommand)
MessageHeader.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.append(commandLength)
MessageHeader.append(command_id)
MessageHeader.append(sequence_number)
CMPP_CONNECT_RESP_CMPP.append(int(status))
CMPP_CONNECT_RESP_CMPP.append(authenticatorismg)
CMPP_CONNECT_RESP_CMPP.append(version)
CMPP_CONNECT_RESP_CMPP.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() 要给个值吧 ? 哪怕是 None 也行. 只声明没有定义？ 你只是声明个全局变量，没赋值。
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