本文实例讲述了python基于select实现的socket服务器。分享给大家供大家参考，具体如下：
借鉴了asyncore模块中select.select的使用方法
import socketimport tracebackimport selectEOL1 = b''EOL2 = b''socketmap = {}r,w,e = [],[],[]response = b'HTTP/1.0 200 OKDate: Mon, 1 Jan 1996 01:01:01 GMT'response += b'Content-Type: text/plainContent-Length: 13'response += b'Hello, world!'serversocket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)serversocket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)serversocket.bind(('0.0.0.0', 23456))serversocket.listen(1)#serversocket.setblocking(0)listening_fileno = serversocket.fileno()socketmap[listening_fileno] = serversocketprint 'listening_fileno',listening_filenotry: while True: r,w,e = [],[],[] for fd in socketmap: r.append(fd) w.append(fd) e.append(fd) r,w,e = select.select(r,w,e,1) for fd in r: request = b'' isocket = socketmap[fd] if fd == listening_fileno: print 'accepting' clientsock,clientaddr = isocket.accept() #clientsock.setblocking(0) cli_fileno = clientsock.fileno() r.append(cli_fileno) w.append(cli_fileno) e.append(cli_fileno) socketmap[cli_fileno] = clientsock else: print 'reading' while EOL1 not in request and EOL2 not in request: request += isocket.recv(1024) print(request.decode()) for fd in w: print 'writing' osocket = socketmap[fd] osocket.send(response) for fd in e: esocket = socketmap[fd] print 'socket close',fd esocket.close() del socketmap[fd] print "no data coming"except Exception,e: print traceback.print_exc() serversocket.close()
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