Before learning you should unlock and queue basis
import queue
import time
import random
import threading
import asyncio
import logging
# from queue import Empty
logging.basicConfig(level = logging.INFO,format = '%(asctime)s - %(levelname)s -->%(funcName)s at line %(lineno)d: \n %(message)s')
log= logging.getLogger()
# queue.qsize 不可以限制，作为应答式condition
q_init = queue.Queue(5)
async def jobs(item):
time.sleep(random.randint(1,3))
status = random.randint(0, 1)
if status == 0:
return ("success",item)
else:
return ("failed",item)
async def do_work(item):
logging.info("do something %s,time start %s" % (item, time.asctime()))
a =await jobs(item)
return a
def async_runner(checker):
new_loop = asyncio.new_event_loop()
asyncio.set_event_loop(new_loop)
loop = asyncio.get_event_loop()
task = asyncio.ensure_future(do_work(checker))
loop.run_until_complete(asyncio.wait([task]))
st = task.result()
return st
def worker_consumer(q_init,cond):
# checker=None
# while checker !="stop":
while True:
try:
if cond.acquire():
if not q_init.empty():
cond.notify()
checker = q_init.get()
if checker == "stop":
cond.release()
BREAK
ST = async_runner (Checker)
IF ST [0] in [ "Success", "failed"]:
logging.info ( "% S% S IS Task Status Finished"% (ST [. 1], ST [0]))
logging.info ( "% s king we ate quail eggs, some more of it" Checker%)
q_init.task_done ()
cond.release ()
the except Exception:
logging.debug("queue is empty ")
def producer(cond,q_init):
Item 1 =
the while True:
IF cond.acquire ():
IF q_init. QSize () <. 5:
q_init.put (Item)
logging.info ( "baby who added the notice quail eggs can eat them% s"% item)
cond.notify()
else:
cond.wait()
cond.release()
item += 1
if item >= 11:
break
q_init.join()
for i in range(thread_num):
q_init.put("stop")
if __name__ == '__main__':
# 消费者>生产者
thread_num=5
cond=threading.Condition()
producer = [threading.Thread(target=producer,args=(cond,q_init)) for i in range(1)]
consumer = [threading.Thread(target=worker_consumer, args=(q_init,cond)) for i in range(thread_num)]
for p in producer:
p.start()
for k in consumer:
k.start()
for m in consumer:
m.join()
result:
2019-12-21 12: 50: 01,781 - INFO -> producer at line 70: children are all, plus a notification under can eat them quail eggs 1 2019-12-21 12: 50: 01,781 - INFO -> producer at line 70: children are, the notification can be added nor eat quail eggs 2 2019-12-21 12: 50: 01,781 - INFO -> producer at line 70: children are, plus the 3 nor eat quail eggs notification may 2019 -12-21 12: 50: 01,781 - INFO -> producer at line 70: children are all, plus the 4 quail eggs notification can eat them 2019-12-21 12: 50: 01,782 - INFO -> producer at line 70: baby who added the notice 5 can eat them quail eggs 2019-12-21 12 is: 50: 01,785 - the INFO -> do_work aT Line 22 is: do something. 1, 21 is Time Start Sat On Dec 2019 12:50:01 12 is 2019-12-21: 50: 04,787 - the INFO -> Line 57 is worker_consumer AT: . 1 Task Status Finished IS failed 2019-12-21 12 is: 50: 04,787 - the INFO -> worker_consumer AT Line 58: We finished 1 king quail eggs, some more of it 2019-12-21 12: 50: 04,788 - INFO -> do_work AT Line 22: do something 2, Start Time Sat Dec 21 12:50:04 2019 2019-12- 12 21: 50: 06,789 - INFO -> worker_consumer AT Line 57: 2 Task finished IS failed the Status 2019-12-21 12: 50: 06,789 - INFO -> worker_consumer AT Line 58: king we finished 2 quail eggs, some more of it 2019-12-21 12: 50: 06,791 - INFO -> do_work AT Line 22: do something 3, Start Time Sat Dec 21 12:50:06 2019 2019-12-21 12: 50: 08,793 - INFO -> worker_consumer AT Line 57: 3 failed the Task finished IS Status 2019-12-21 12: 50: 08,793 - INFO -> worker_consumer AT Line 58: king we had finished three quail eggs, some more of it 2019-12-21 12: 50: 08,794 - INFO - > do_work at line 22: something. 4 do, Start Time Sat On Dec 21 is 12:50:08 2019 2019-12-21 12 is: 50: 09,795 - the INFO -> Line 57 is worker_consumer AT: . 4 Task Status Finished IS failed 2019-12-21 12:50: 09,795 - INFO -> worker_consumer at line 58: king we had finished the 4 quail eggs, some more of it 2019-12-21 12: 50: 09,796 - INFO -> do_work AT Line 22: do something 5, Start Time Sat Dec 2019 12:50:09 21 is 2019-12-21 12 is: 50: 12,798 - the INFO -> Line 57 is worker_consumer AT: . 5 Task Status Finished IS Success 2019-12-21 12 is: 50: 12,798 - the INFO -> AT worker_consumer line 58: king we had finished five quail eggs, some more of it 2019-12-21 12: 50: 12,799 - INFO -> producer at line 70: children are all, plus seven quail eggs may notice nor eat 2019-12 -21 12: 50: 12,799 - INFO -> producer at line 70: Children are all, plus eight quail eggs notification can eat them 2019-12-21 12: 50: 12,799 - INFO -> producer at line 70: children are all, plus a notification under 9 quail eggs can eat them 2019-12- 21 12: 50: 12,799 - INFO -> producer at line 70: children are, the notification may be added nor eat quail eggs 10 2019-12-21 12 is: 50: 12,801 - the INFO -> do_work aT Line 22 is: do . 7 something, Start Time Sat On Dec 21 is 12:50:12 2019 2019-12-21 12 is: 50: 14,802 - the INFO -> Line 57 is worker_consumer AT: . 7 Task Status Finished IS Success 2019-12-21 12 is: 50: 14,802 - INFO -> worker_consumer at line 58 : king we finished 7 quail eggs, some more of it 2019-12-21 12: 50: 14,804 - INFO -> do_work AT Line 22: do something 8, Start Time Sat Dec 21 2019 12:50:14 2019-12-21 12: 50: 17,805 - INFO -> worker_consumer AT Line 57: Finished IS Success Task Status 8 2019-12-21 12: 50: 17,805 - INFO -> worker_consumer AT Line 58: King we finished 8 quail eggs, some more of it 2019-12-21 12: 50: 17,806 - INFO - -> do_work AT Line 22 is: do something. 9, Start Time Sat On Dec 21 is 12:50:17 2019 2019-12-21 12 is: 50: 20,808 - the INFO -> Line 57 is worker_consumer AT: . 9 Task Status Finished IS failed 2019- 12-21 12: 50: 20,808 - INFO -> worker_consumer at line 58: king we had finished the 9 quail eggs, some more of it 2019-12-21 12: 50: 20,810 - INFO -> do_work AT Line 22: do 10 something, Start Time Sat On Dec 21 is 12:50:20 2019 2019-12-21 12 is: 50: 23,810 - the INFO -> Line 57 is worker_consumer AT: 10 IS failed Task Status Finished 2019-12-21 12: 50: 23,810 - INFO -> worker_consumer at line 58: King we had finished the 10 quail eggs, some more of it