python-lock

import threading
import time
import logging
logging.basicConfig(level=logging.INFO)

cups = []
lock = threading.Lock()  #锁

def factory():
    logging.info("杯子的数量:{}".format(cups))

def worker(n,lock):
    while True:
        lock.acquire()  #请求到锁
        count = len(cups)
        logging.info("杯子数量：{}".format(count))
        time.sleep(0.6)
        if count >=  n:
            break
        cups.append(1)
        lock.release()   # 释放锁
        logging.info("{} make one".format(threading.current_thread().name))
    logging.info("当前杯子数:{}".format(len(cups)))

for i in range(10):
    t = threading.Thread(target=worker,args=(100,lock))
    t.start()