Question

我想使TCP服务器成为双向服务器。我想添加一个计时器线程，并每10秒将数据发送给所有客户端。

我的代码如下

import socket
import sys
from thread import *

HOST = '192.168.137.130'   # Symbolic name meaning all available interfaces
PORT = 8888 # Arbitrary non-privileged port

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print 'Socket created'

#Bind socket to local host and port
try:
    s.bind((HOST, PORT))
except socket.error as msg:
    print 'Bind failed. Error Code : ' + str(msg[0]) + ' Message ' + msg[1]
    sys.exit()

print 'Socket bind complete'

#Start listening on socket
s.listen(10)
print 'Socket now listening'

#Function for handling connections. This will be used to create threads
def clientthread(conn):
    #Sending message to connected client
    conn.send('Welcome to the server. Type something and hit enter\n') #send only takes string

    #infinite loop so that function do not terminate and thread do not end.
    while True:

        #Receiving from client
        data = conn.recv(1024)
    print data
    print 'rcv data:'
        #reply = 'OK...' + data
        if not data: 
            break

        conn.sendall('hello')

    #came out of loop
    conn.close()

#now keep talking with the client
while 1:
    #wait to accept a connection - blocking call
    conn, addr = s.accept()
    print 'Connected with ' + addr[0] + ':' + str(addr[1])

    #start new thread takes 1st argument as a function name to be run, second is the tuple of arguments to the function.
    start_new_thread(clientthread ,(conn,))

s.close()

我曾尝试在while循环中添加一些代码，但是由于只有在有新连接或客户端向服务器发送数据时才激活循环，所以我无法实现。

需要在TCP服务器中添加计时器线程

0 个答案: