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服务端使用了select模块,实现了对多个socket的监控。客户端由于select在Windows下只能对socket使用,所以使用了多线程来实现对客户端输入和socket连接的同时监控。注意这里的socket设置为了非阻塞。这样就实现了在一个线程中同时进行socket的接收和发送。
服务器代码:
# -*- coding: utf-8 -*- import socket,select connection_list = [] host = '' port = 10001 def board_cast(sock,message): for socket in connection_list: if socket != server_sock and socket != sock: try: socket.send(message) except: socket.close() print str(socket.getpeername())+' is offline' connection_list.remove(socket) server_sock = socket.socket(socket.AF_INET,socket.SOCK_STREAM) server_sock.setsockopt(socket.SOL_SOCKET,socket.SO_REUSEADDR,1) server_sock.setblocking(0) server_sock.bind((host,port)) server_sock.listen(10) connection_list.append(server_sock) while 1: readable,writable,error = select.select(connection_list,[],[]) for sock in readable: if sock == server_sock: connection,connection_add = sock.accept() message = str(connection_add)+'enter room' board_cast(connection,message) print connection_add,'%s connect' connection_list.append(connection) else: try: date = sock.recv(1024) print date board_cast(sock,'('+str(sock.getpeername())+') :'+date) except: message2 = str(sock.getpeername())+ 'is offline' board_cast(sock,message2) print str(sock.getpeername())+ ' is offline' sock.close() connection_list.remove(sock) continue
客户端代码:
# -*- coding: utf-8 -*- import socket,threading,time flag = 0 date = '' lock = threading.Lock() host = 'localhost' port = 10001 client_sock = socket.socket(socket.AF_INET,socket.SOCK_STREAM) client_sock.setblocking(0) class Mythread1(threading.Thread): def __init__(self): threading.Thread.__init__(self) def run(self): global flag, date while 1: date = raw_input() if len(date): lock.acquire() flag = 1 lock.release() class Mythread2(threading.Thread): def __init__(self): threading.Thread.__init__(self) def run(self): global flag global date while 1: try: buf = client_sock.recv(1024) if len(buf): print buf except: pass if flag: try: client_sock.send(date) except socket.error, e: print e lock.acquire() flag = 0 lock.release() try: client_sock.connect((host,port)) print"连接成功" except socket.error,e: print e t1 = Mythread1() t2 = Mythread2() t1.start() t2.start()
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