本文整理汇总了Python中multiprocessing.pool.map_async方法的典型用法代码示例。如果您正苦于以下问题：Python pool.map_async方法的具体用法？Python pool.map_async怎么用？Python pool.map_async使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类multiprocessing.pool的用法示例。
在下文中一共展示了pool.map_async方法的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: test_terminate
# 需要导入模块: from multiprocessing import pool [as 别名]
# 或者: from multiprocessing.pool import map_async [as 别名]
def test_terminate(self):
if self.TYPE == 'manager':
# On Unix a forked process increfs each shared object to
# which its parent process held a reference. If the
# forked process gets terminated then there is likely to
# be a reference leak. So to prevent
# _TestZZZNumberOfObjects from failing we skip this test
# when using a manager.
return
result = self.pool.map_async(
time.sleep, [0.1 for i in range(10000)], chunksize=1
)
self.pool.terminate()
join = TimingWrapper(self.pool.join)
join()
self.assertTrue(join.elapsed < 0.2) 示例2: test_map_chunksize
# 需要导入模块: from multiprocessing import pool [as 别名]
# 或者: from multiprocessing.pool import map_async [as 别名]
def test_map_chunksize(self):
try:
self.pool.map_async(sqr, [], chunksize=1).get(timeout=TIMEOUT1)
except multiprocessing.TimeoutError:
self.fail("pool.map_async with chunksize stalled on null list") 示例3: test_terminate
# 需要导入模块: from multiprocessing import pool [as 别名]
# 或者: from multiprocessing.pool import map_async [as 别名]
def test_terminate(self):
p = self.Pool(4)
result = p.map_async(
time.sleep, [0.1 for i in range(10000)], chunksize=1
)
p.terminate()
join = TimingWrapper(p.join)
join()
self.assertTrue(join.elapsed < 0.2) 示例4: test_empty_iterable
# 需要导入模块: from multiprocessing import pool [as 别名]
# 或者: from multiprocessing.pool import map_async [as 别名]
def test_empty_iterable(self):
# See Issue 12157
p = self.Pool(1)
self.assertEqual(p.map(sqr, []), [])
self.assertEqual(list(p.imap(sqr, [])), [])
self.assertEqual(list(p.imap_unordered(sqr, [])), [])
self.assertEqual(p.map_async(sqr, []).get(), [])
p.close()
p.join() 示例5: test_map_async
# 需要导入模块: from multiprocessing import pool [as 别名]
# 或者: from multiprocessing.pool import map_async [as 别名]
def test_map_async(self):
self.assertEqual(self.pool.map_async(sqr, list(range(10))).get(),
list(map(sqr, list(range(10))))) 示例6: test_map_async_callbacks
# 需要导入模块: from multiprocessing import pool [as 别名]
# 或者: from multiprocessing.pool import map_async [as 别名]
def test_map_async_callbacks(self):
call_args = self.manager.list() if self.TYPE == 'manager' else []
self.pool.map_async(int, ['1'],
callback=call_args.append,
error_callback=call_args.append).wait()
self.assertEqual(1, len(call_args))
self.assertEqual([1], call_args[0])
self.pool.map_async(int, ['a'],
callback=call_args.append,
error_callback=call_args.append).wait()
self.assertEqual(2, len(call_args))
self.assertIsInstance(call_args[1], ValueError) 示例7: test_terminate
# 需要导入模块: from multiprocessing import pool [as 别名]
# 或者: from multiprocessing.pool import map_async [as 别名]
def test_terminate(self):
result = self.pool.map_async(
time.sleep, [0.1 for i in range(10000)], chunksize=1
)
self.pool.terminate()
join = TimingWrapper(self.pool.join)
join()
self.assertLess(join.elapsed, 0.5) 示例8: test_terminate
# 需要导入模块: from multiprocessing import pool [as 别名]
# 或者: from multiprocessing.pool import map_async [as 别名]
def test_terminate(self):
result = self.pool.map_async(
time.sleep, [0.1 for i in range(10000)], chunksize=1
)
self.pool.terminate()
join = TimingWrapper(self.pool.join)
join()
# Sanity check the pool didn't wait for all tasks to finish
self.assertLess(join.elapsed, 2.0)