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September Morn Update

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Ingy döt Net 2019-09-12 10:33:56 -07:00
parent 4e2d22a71d
commit aac6731f2c
6856 changed files with 141342 additions and 21127 deletions
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Task/Checkpoint-synchronization/Python/checkpoint-synchronization.py Normal file
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"""
Based on https://pymotw.com/3/threading/
"""
import threading
import time
import random
def worker(workernum, barrier):
# task 1
sleeptime = random.random()
print('Starting worker '+str(workernum)+" task 1, sleeptime="+str(sleeptime))
time.sleep(sleeptime)
print('Exiting worker'+str(workernum))
barrier.wait()
# task 2
sleeptime = random.random()
print('Starting worker '+str(workernum)+" task 2, sleeptime="+str(sleeptime))
time.sleep(sleeptime)
print('Exiting worker'+str(workernum))
barrier = threading.Barrier(3)
w1 = threading.Thread(target=worker, args=((1,barrier)))
w2 = threading.Thread(target=worker, args=((2,barrier)))
w3 = threading.Thread(target=worker, args=((3,barrier)))
w1.start()
w2.start()
w3.start()