参考来源(其实我从上面复制了一点):
Python 的 Socket 编程教程 http://www.oschina.net/question/12_76126
Python线程指南 http://www.open-open.com/lib/view/open1345476194313.html
具体思路:
每个client有两个线程,分别负责接收和发送,当没有发送时,在raw_input()那卡住,当没有接收时,在recv()那卡住
server为每个client开两个线程,分别处理接收和发送。每个发送的线程在con.wait()那阻塞,等待notify。每个接收的线程,在recv()那里等待来自client的输入,接收到输入后,发出一个notify,激活所有输出线程,自身则因为循环在下一个recv()那里等待。
这样做的优势时在等待期间,cpu都处于空闲状态,cpu只在接收和发送的瞬间被使用。
目前没有想到更好方法。。。
注意:
我做得有点粗糙,复制后有些注释和代码对应不起来,也没有添加新的注释
Python 的 Socket 编程教程 http://www.oschina.net/question/12_76126
Python线程指南 http://www.open-open.com/lib/view/open1345476194313.html
具体思路:
每个client有两个线程,分别负责接收和发送,当没有发送时,在raw_input()那卡住,当没有接收时,在recv()那卡住
server为每个client开两个线程,分别处理接收和发送。每个发送的线程在con.wait()那阻塞,等待notify。每个接收的线程,在recv()那里等待来自client的输入,接收到输入后,发出一个notify,激活所有输出线程,自身则因为循环在下一个recv()那里等待。
这样做的优势时在等待期间,cpu都处于空闲状态,cpu只在接收和发送的瞬间被使用。
目前没有想到更好方法。。。
注意:
我做得有点粗糙,复制后有些注释和代码对应不起来,也没有添加新的注释
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代码片段(4)[全屏查看所有代码]
1. [文件] client.py ~ 976B 下载(23)
# -*- coding: utf-8 -*-
"""
Created on Thu Oct 24 17:35:50 2013
@author: zbg
"""
import socket
import threading
inString = ''
outString = ''
nick = ''
def DealOut(s):
global nick, outString
while True:
outString = raw_input()
outString = nick + ': ' + outString
s.send(outString)
def DealIn(s):
global inString
while True:
try:
inString = s.recv(1024)
if not inString:
break
if outString != inString:
print inString
except:
break
nick = raw_input("input your nickname: ")
ip = raw_input("input the server's ip adrress: ")
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.connect((ip, 8888))
sock.send(nick)
thin = threading.Thread(target = DealIn, args = (sock,))
thin.start()
thout = threading.Thread(target = DealOut, args = (sock,))
thout.start()
#sock.close()
2. [文件] server.py ~ 2KB 下载(19)
# -*- coding: utf-8 -*-
"""
Created on Fri Oct 25 10:33:44 2013
@author: zbg
"""
import socket
import sys
import threading
con = threading.Condition()
HOST = raw_input("input the server's ip adrress: ") # Symbolic name meaning all available interfaces
PORT = 8888 # Arbitrary non-privileged port
data = ''
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print 'Socket created'
s.bind((HOST, PORT))
s.listen(10)
print 'Socket now listening'
#Function for handling connections. This will be used to create threads
def clientThreadIn(conn, nick):
global data
#infinite loop so that function do not terminate and thread do not end.
while True:
#Receiving from client
try:
temp = conn.recv(1024)
if not temp:
conn.close()
return
NotifyAll(temp)
print data
except:
NotifyAll(nick + " leaves the room!")
print data
return
#came out of loop
def NotifyAll(sss):
global data
if con.acquire():
data = sss
con.notifyAll()
con.release()
def ClientThreadOut(conn, nick):
global data
while True:
if con.acquire():
con.wait()
if data:
try:
conn.send(data)
con.release()
except:
con.release()
return
while 1:
#wait to accept a connection - blocking call
conn, addr = s.accept()
print 'Connected with ' + addr[0] + ':' + str(addr[1])
nick = conn.recv(1024)
#send only takes string
#start new thread takes 1st argument as a function name to be run, second is the tuple of arguments to the function.
NotifyAll('Welcome ' + nick + ' to the room!')
print data
print str((threading.activeCount() + 1) / 2) + ' person(s)!'
conn.send(data)
threading.Thread(target = clientThreadIn , args = (conn, nick)).start()
threading.Thread(target = ClientThreadOut , args = (conn, nick)).start()
s.close()