我在尝试此代码时只收到TCP消息:
from socket import *
from select import select
def read_tcp(s):
while True:
client,addr = s.accept()
data = client.recv(8000)
client.close()
print "Recv TCP:'%s'" % data
def read_udp(s):
while True:
data,addr = s.recvfrom(8000)
print "Recv UDP:'%s'" % data
def run():
host = ''
port = 8888
size = 8000
backlog = 5
# create tcp socket
tcp = socket(AF_INET, SOCK_STREAM)
tcp.bind(('',port))
tcp.listen(backlog)
# create udp socket
udp = socket(AF_INET, SOCK_DGRAM)
udp.bind(('',port))
input = [tcp,udp]
while True:
inputready,outputready,exceptready = select(input,[],[])
for s in inputready:
if s == tcp:
read_tcp(s)
elif s == udp:
read_udp(s)
else:
print "unknown socket:", s
if __name__ == '__main__':
run()
客户端是这样的:
from socket import *
def send_tcp():
s = socket(AF_INET,SOCK_STREAM)
s.connect(('localhost',8888))
data="TCP "*4
s.send(data)
s.close()
def send_udp():
s = socket(AF_INET,SOCK_DGRAM)
data="UDP "*4
s.sendto(data, ('localhost',8888))
s.close()
if __name__ == '__main__':
send_tcp()
send_udp()
答案 0 :(得分:5)
摆脱read_tcp()和read_udp()中的'while'循环。 select()循环是您需要的唯一循环:它将根据需要经常调用read_XXX()方法。 read_XXX()方法应该只处理一个事件。
您的read_tcp()方法应分为两部分:一部分接受套接字并将其添加到选择集,另一部分读取接受的套接字。相应地调整选择循环。