python3 thread

Posted 2020-12-13 Cluster Note

...占位

# -*- coding:utf-8 -*-
# date:20200616
# auth:[e-mail]
# description: 后台计算期间,打印一堆无效内容, 查询完成后,停止无效打印, 输出有效内容

 

from mdiso.dbcon import DBClient
from mdiso.shrun import ShRun
from threading import Thread
import time
mydb=DBClient()

def func1():
diff_res=mydb.diff_ini_cur()
#time.sleep(10)
t1=Thread(target=func1)

fo=open(‘/tmp/mdsum_ini‘, ‘r‘)
data=fo.readline()


t1.start()

while t1.isAlive():
if len(data) >3 and t1.isAlive() :
print(data.strip())
data=fo.readline()
else:
fo.seek(0)
data=fo.readline()
time.sleep(0.05)

fo.close()

#print("in while liave", time.ctime(time.time()))


print("main end ", time.ctime(time.time()))