#Source: http://www.liaoxuefeng.com/wiki/001374738125095c955c1e6d8bb493182103fac9270762a000/0013868328689835ecd883d910145dfa8227b539725e5ed000

#Source: Python yield 使用浅析 http://www.ibm.com/developerworks/cn/opensource/os-cn-python-yield/

import time

from inspect import isgeneratorfunction

def consumer():

r = ''

while True:

n = yield r

if not n:

return

print('[CONSUMER] Consuming %s...' % n)

time.sleep(1)

r = '200 OK'

def produce(c):

#print ('type c.next() %s ' % type( c.next() ) )

c.next()

n = 0

while n < 5:

n = n + 1

print('[PRODUCER] Producing %s...' % n)

r = c.send(n)

print('[PRODUCER] Consumer return: %s' % r)

c.close()

if __name__=='__main__':

c = consumer()

print ("is consumer() a generatorfunction %s" % isgeneratorfunction(consumer) )

produce(c)