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バリア

Python
バリア

Posted at 2020-04-19

import logging
import threading
import time

logging.basicConfig(level=logging.DEBUG, format='%(threadName)s: %(message)s')


def worker1(barrier):
    r = barrier.wait()
    logging.debug('num={}'.format(r))
    while True:
        logging.debug('start')
        time.sleep(2)
        logging.debug('end')


def worker2(barrier):
    r = barrier.wait()
    logging.debug('num={}'.format(r))
    while True:
        logging.debug('start')
        time.sleep(2)
        logging.debug('end')



if __name__ == '__main__':
    barrier = threading.Barrier(2)
    t1 = threading.Thread(target=worker1, args=(barrier,))
    t2 = threading.Thread(target=worker2, args=(barrier,))
    t1.start()
    t2.start()

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