由于Python天生的优点,特别适用于快速实现功能。
- #!/usr/bin/python2.7
- import sys
- import time
- import socket
- #import modbus
- import threading
- import select
- class thread(threading.Thread):
- def __init__(self,sock):
- threading.Thread.__init__(self)
- #self.commond=modbus.modbus()
- self.sock=sock
- def run(self):
- time1=time.time()-10
- time2=time.time()
- try:
- while True:
- cr,cw,ce=select.select([self.sock],[],[self.sock],1)
- time2=time.time()
- if cr:#//can read
- stream=self.sock.recv(1024)
- if not stream:
- break
- #self.commond.parse(stream)
- if ce:
- break
- if time2-time1>10:#//10s write once
- #self.sock.send(self.commond.get_all_data_by_address(0x01))
- time1=time.time()
- except Exception as error:
- print(error)
- finally:
- self.sock.close()
- print('connect closed')
- if __name__=='__main__':
- sock=socket.socket(socket.AF_INET,socket.SOCK_STREAM)
- sock.bind(('127.0.0.1',8000))
- sock.listen(0)
- thread_list=list()
- try:
- while True:
- s,ip=sock.accept()
- print('new connect :%s:%d'%(ip[0],ip[1]))
- t=thread(s)
- t.start()
- thread_list.append(t)
- finally:
- sock.close()
- for i in thread_list:
- i.sock.close()
- print('\b\blistening exit')
一个轻量级服务器程序,modbus模块是我进行数据的相关处理的逻辑,注释掉了。
来源: http://www.phpxs.com/code/1005116/