python socket 实例 select 流程

柔光的暖阳◎ 2022-07-12 05:19 136阅读 0赞

## JzSocketServer.py ##

#!/usr/bin/env python
    #coding:utf-8
    
    """ FuncName: JzSocketServer.py Desc: study socket for python 2.7 Date: 2017-01-16 10:30 Author: johnny """
    
    from socket import socket
    from _socket import AF_INET, SOCK_STREAM, SOL_SOCKET, SO_REUSEADDR, TCP_NODELAY, IPPROTO_TCP
    import threading
    from select import select
    
    class JzSocktServer(object):
        def __init__(self,SERVER_IP,SERVER_PORT):
            self.EVENT_PC = "0"
            self.EVENT_NOTEBOOK = "1"
            self.EVENT_PHONE = "2"
            self.EVENT_TV = "3"
            self.SERVER_IP = SERVER_IP
            self.SERVER_PORT = SERVER_PORT
            self.output_list = []
            self.error_list = []
    
        def Server(self):
            # simulate report server
            server = socket(AF_INET, SOCK_STREAM)
            server.setblocking(False)    # 设置为非阻塞
            server.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
            server.bind((self.SERVER_IP, self.SERVER_PORT))
            server.listen(5)
            input_list = [server]   # 初始化将服务端加入监听列表
            while True:
                # 开始 select 监听,对input_list 中的服务端server进行监听
                winput, woutput, werror = select(input_list, self.output_list, self.error_list, 1)
                # 循环判断是否有客户端连接进来,当有客户端连接进来时select将触发
                for recv in winput:
                    # 判断当前触发的是不是服务端对象, 当触发的对象是服务端对象时,说明有新客户端连接进来了
                    if recv is server:
                        # 接收客户端的连接, 获取客户端对象和客户端地址信息
                        connection, clientAddress = server.accept()
                        print "\033[1;34mGet connection from \033[0m","\033[1;35m%s:%s\033[0m"%(list(clientAddress)[0],list(clientAddress)[1])
                        connection.setblocking(False)
                        connection.setsockopt(IPPROTO_TCP, TCP_NODELAY, 1)
                        # 将客户端对象也加入到监听的列表中, 当客户端发送消息时 select 将触发
                        input_list.append(connection)
    
                    else:
                        # 由于客户端连接进来时服务端接收客户端连接请求，将客户端加入到了监听列表中(input_list)，客户端发送消息将触发
                        # 所以判断是否是客户端对象触发
                        data = recv.recv(1024)  # 接受数据
                        # 客户端未断开
                        if data:
                            if data == self.EVENT_PC:
                                print "\033[1;32mCurrent device is PC"
                            elif data == self.EVENT_NOTEBOOK:
                                print "Current device is NOTEBOOK"
                            elif data == self.EVENT_TV:
                                print "Current device is TV"
                            elif data ==self.EVENT_PHONE:
                                print "Current device is PHONE\033[0m"
                        else:
                            input_list.remove(recv)
                            recv.close()
    
    if __name__ == '__main__':
        SERVER_IP = "192.168.1.8"
        SERVER_PORT = 8085
        event_nested = JzSocktServer(SERVER_IP,SERVER_PORT)
        event_nested.Server()
        """ threads = [] t1 = threading.Thread(target=event_nested.Server) threads.append(t1) t2 = threading.Thread(target=event_nested.Client) threads.append(t2) for t in threads: time.sleep(2) t.start() """

JzSocketClient.py

#!/usr/bin/env python
    #coding:utf-8
    
    """ FuncName: JzSocketClient.py Desc: study socket for python 2.7 Date: 2017-01-16 10:30 Author: johnny """
    
    from socket import socket
    from _socket import AF_INET, SOCK_STREAM, SOL_SOCKET, SO_REUSEADDR, SO_KEEPALIVE, TCP_NODELAY, IPPROTO_TCP
    import threading,time,string
    from select import select
    
    class JzSocktClient(object):
        def __init__(self,SERVER_IP,SERVER_PORT):
            self.EVENT_PC = 0
            self.EVENT_NOTEBOOK = 1
            self.EVENT_PHONE = 2
            self.EVENT_TV = 3
            self.SERVER_IP = SERVER_IP
            self.SERVER_PORT = SERVER_PORT
            self.output_list = []
            self.error_list = []
    
        def Client(self):
            # wait report server connected
            self.client = socket(AF_INET, SOCK_STREAM)
            self.client.connect((self.SERVER_IP, self.SERVER_PORT))
            list = [self.EVENT_PC, self.EVENT_NOTEBOOK, self.EVENT_TV, self.EVENT_PHONE]
            for cmd in list:
                self.client.send(str(cmd))
                time.sleep(1)
            self.client.close()
    
    if __name__ == '__main__':
        SERVER_IP = "192.168.1.8"
        SERVER_PORT = 8085
        event_nested = JzSocktClient(SERVER_IP,SERVER_PORT)
        event_nested.Client()