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test_pool_async.py
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importtime
frommultiprocessingimportPool
deff(x):
returnx*x
pool=Pool(4)
future=pool.apply_async(f, (10,))
assertfuture.get() ==100
deff2(x):
time.sleep(0.5)
returnx+1
future=pool.apply_async(f2, (10,))
iter=0
whilenotfuture.ready():
# print("not ready")
time.sleep(0.1)
iter+=1
assertfuture.get() ==11
assertiter>=5anditer<=8
t=time.time()
futs= [
pool.apply_async(f2, (10,)),
pool.apply_async(f2, (11,)),
pool.apply_async(f2, (12,)),
]
iter=0
whileTrue:
# not all(futs):
c=0
forfinfuts:
ifnotf.ready():
c+=1
ifnotc:
break
# print("not ready2")
time.sleep(0.1)
iter+=1
assertiter>=5anditer<=8
print("Run 3 parallel sleep(1)'s in: ", time.time() -t)
