PYthon multi-thread Server

PYthon multi-thread Server

It is divided into two parts, one for updating data and the other for responding to client requests.

from SocketServer import TCPServer, StreamRequestHandlerfrom time import ctimefrom SocketServer import ThreadingTCPServerimport tracebackimport threadingMutex = threading.Lock()HOST = "127.0.0.1"#HOST = "121.40.152.123"PORT_Recv = 6000ADDR_Recv = (HOST,PORT_Recv)Int = [ i for i in range (101)]dict_ele = {'001':'100'} for i in range(101):    Key_ele = str(i)    if len(Key_ele) == 1:        Key_ele = '00' + Key_ele        dict_ele.update({Key_ele:"100"})    elif len(Key_ele) == 2:        Key_ele = '0' + Key_ele        dict_ele.update({Key_ele:"100"})    else :        dict_ele.update({Key_ele:"100"})class Recv_Data_from_Vehicle_RequestHandle(StreamRequestHandler):    def handle(self):        #data = self.rfile.readline()        data = self.request.recv(1024)        if len(data) == 12:            if data[0] == '$' and data[10:12] == '\r\n' :                Key = data[3:6]                Value = data[7:10]                if Key.isdigit():                    if int(Key) <= 100 and int (Key) >= 0:                         Mutex.acquire()                        dict_ele.update({Key:Value})#need protect                        print Key,dict_ele[Key]                        Mutex.release()                        self.wfile.write(dict_ele[Key])                    else :                        print " overflow"                else:                    print "Key Error"            else:                print "bit error!"        else:            print "recv error!"        def Recv_Data_from_Vehicle():    tcpServ = ThreadingTCPServer(ADDR_Recv,Recv_Data_from_Vehicle_RequestHandle)    tcpServ.serve_forever()class Query_Data_RequestHandle(StreamRequestHandler):    def handle(self):        if 1:            try:                #data = "$NUM001\r\n"                #print len(data)                #data = self.request.recv(1024)                  data = self.rfile.readline() #read data                    index ="001" #initialize                  print "recv from (%r):%r"% (self.client_address,data)                #print data[4:7]                #print "len=:",len(data)                Error_buf = '$DATA' + index + ',' + 'Err' + '\r\n'                if len(data) == 9:                    if data[0] == '$' and data[7:9] == '\r\n':                        index = data[4:7]                        if index.isdigit():                            if int(index) <= 100 and int (index) >= 0:                                Mutex.acquire()                                Send_buf = '$DATA' + index + ',' + dict_ele[index] + '\r\n'#need protect                                self.wfile.write(Send_buf)                                print "Send_buf:",Send_buf                                Mutex.release()                            else :                                print "index including other char"                                Error_buf = '$DATA' + index + ',' + 'Err' + '\r\n'                                self.wfile.write(Error_buf)                        else:                            print "index over"                            Error_buf = '$DATA' + index + ',' + 'Err' + '\r\n'                            self.wfile.write(Error_buf)                    else:                        print "bit error!"                else:                    print "recv error!"               # print self.request.threading.Thread.getName()               # sleep(5)            except:                traceback.print_exc()            def Query_Data():    PORT_Query = 6001    addr_Query = (HOST,PORT_Query)    server = ThreadingTCPServer(addr_Query,Query_Data_RequestHandle)    server.serve_forever()def main():    Recv_Thread = threading.Thread(target = Recv_Data_from_Vehicle)    Query_Thread = threading.Thread(target = Query_Data)    Recv_Thread.start()    Query_Thread.start()if __name__ == "__main__":    main()