Hi All, I'm trying to leverage my core i5 to send more UDP packets with multiprocssing, but I found a interesting thing is that the socket.bind is always reporting 10048 error even the process didn't do anything about the socket. Here is the script
import threading,socket,random,pp,os import time from multiprocessing import Process import multiprocessing.reduction localIP='10.80.2.24' localPort=2924 remoteIP='10.80.5.143' remotePort=2924 sock=socket.socket(socket.AF_INET,socket.SOCK_DGRAM) #sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) sock.bind((localIP,localPort)) sock.connect((remoteIP,remotePort)) addRequest="MEGACO/1 ["+localIP+"]:"+str(localPort)+"\r\nTRANSACTION = 100 {\r\n" \ "\tCONTEXT = $ {\r\n" \ "\t\tADD = TDMs15c1f1/11{ \r\n" \ " Media { LocalControl { Mode=SendReceive,tdmc/ec=on }} " \ "\t}\r\n}}\r\n" def sendAddRequest(sock,addRequst): #for i in range(2500): #sock.send(addRequest) print "hello" if __name__ == '__main__': reader = Process(target=sendAddRequest,args=(sock,addRequest)) reader.start() Here is the output D:\Python test>mythread2.py Traceback (most recent call last): File "<string>", line 1, in <module> File "C:\Python27\lib\multiprocessing\forking.py", line 346, in main prepare(preparation_data) File "C:\Python27\lib\multiprocessing\forking.py", line 461, in prepare '__parents_main__', file, path_name, etc File "D:\Python test\mythread2.py", line 12, in <module> sock.bind((localIP,localPort)) File "C:\Python27\lib\socket.py", line 224, in meth return getattr(self._sock,name)(*args) socket.error: [Errno 10048] Only one usage of each socket address (protocol/netw ork address/port) is normally permitted -- http://mail.python.org/mailman/listinfo/python-list