pythond多线程——生产消费者模型

Queue模块可以用来进行线程间通讯，让各个线程之间共享数据。其属性如下

from random import randint
from time import sleep
from Queue import Queue
from myThread import MyThread

#把对象放入队列
def writeQ(queue):
    print 'producing object for Q...',
    queue.put('xxx', 1)
    print "size now", queue.qsize()

#消耗队列的一个对象
def readQ(queue):
    val = queue.get(1)
    print 'consumed object from Q... size now', \
        queue.qsize()

#生产者
def writer(queue, loops):
    for i in range(loops):
        writeQ(queue)
        sleep(randint(1, 3))

#消费者
def reader(queue, loops):
    for i in range(loops):
        readQ(queue)
        sleep(randint(2, 5))

funcs = [writer, reader]
nfuncs = range(len(funcs))

def main():
    nloops = randint(2, 5)
    q = Queue(32)

    threads = []
    for i in nfuncs:
        t = MyThread(funcs[i], (q, nloops), \
            funcs[i].__name__)
        threads.append(t)

    for i in nfuncs:
        threads[i].start()

    for i in nfuncs:
        threads[i].join()

    print 'all DONE'

if __name__ == '__main__':
    main()