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Python 多线程 生产者消费者模型

2016-05-15 14:49 381 查看
my_thread.py

import threading
from time import ctime
class MyThread(threading.Thread):
def __init__(self, func, args, name=''):
threading.Thread.__init__(self)
self.name = name
self.func = func
self.args = args

def get_result(self):
return self.res

def run(self):
print 'starting ', self.name, ' at:',ctime()
self.res = apply(self.func, self.args)
print self.name ,'finished at:' ctime()


queue.py:

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

def write_q(queue):
print 'producting object for Q...'
queue.put('xxx',1)
print 'size now: ',queue.qsize()

def read_q(queue):
val = queue.get(1)
print 'consumed object from Q... size now', queue.qsize()

def writer(queue, loops):
for i in range(loops):
write_q(queue)
sleep(randint(1,3))

def reader(queue,loops):
for i in range(loops):
read_q(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 = my_thread.MyThread(funcs[i],(q,nloops),funcs[i].__name__)
threads.append(t)
for i in nfuncs:
threads.start(i)

for i in nfuncs:
threads.join()

print 'all done'
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