本文整理汇总了Python中asyncio.FastChildWatcher方法的典型用法代码示例。如果您正苦于以下问题：Python asyncio.FastChildWatcher方法的具体用法？Python asyncio.FastChildWatcher怎么用？Python asyncio.FastChildWatcher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asyncio的用法示例。
在下文中一共展示了asyncio.FastChildWatcher方法的5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_sigchld_child_reaped_elsewhere
# 需要导入模块: import asyncio [as 别名]
# 或者: from asyncio import FastChildWatcher [as 别名]
def test_sigchld_child_reaped_elsewhere(self, m):
# register a child
callback = mock.Mock()
with self.watcher:
self.running = True
self.watcher.add_child_handler(58, callback)
self.assertFalse(callback.called)
self.assertFalse(m.WIFEXITED.called)
self.assertFalse(m.WIFSIGNALED.called)
self.assertFalse(m.WEXITSTATUS.called)
self.assertFalse(m.WTERMSIG.called)
# child terminates
self.running = False
self.add_zombie(58, 4)
# waitpid is called elsewhere
os.waitpid(58, os.WNOHANG)
m.waitpid.reset_mock()
# sigchld
with self.ignore_warnings:
self.watcher._sig_chld()
if isinstance(self.watcher, asyncio.FastChildWatcher):
# here the FastChildWatche enters a deadlock
# (there is no way to prevent it)
self.assertFalse(callback.called)
else:
callback.assert_called_once_with(58, 255) 示例2: test_close
# 需要导入模块: import asyncio [as 别名]
# 或者: from asyncio import FastChildWatcher [as 别名]
def test_close(self, m):
# register two children
callback1 = mock.Mock()
with self.watcher:
self.running = True
# child 1 terminates
self.add_zombie(63, 9)
# other child terminates
self.add_zombie(65, 18)
self.watcher._sig_chld()
self.watcher.add_child_handler(63, callback1)
self.watcher.add_child_handler(64, callback1)
self.assertEqual(len(self.watcher._callbacks), 1)
if isinstance(self.watcher, asyncio.FastChildWatcher):
self.assertEqual(len(self.watcher._zombies), 1)
with mock.patch.object(
self.loop,
"remove_signal_handler") as m_remove_signal_handler:
self.watcher.close()
m_remove_signal_handler.assert_called_once_with(
signal.SIGCHLD)
self.assertFalse(self.watcher._callbacks)
if isinstance(self.watcher, asyncio.FastChildWatcher):
self.assertFalse(self.watcher._zombies) 示例3: create_watcher
# 需要导入模块: import asyncio [as 别名]
# 或者: from asyncio import FastChildWatcher [as 别名]
def create_watcher(self):
return asyncio.FastChildWatcher() 示例4: test_get_child_watcher_after_set
# 需要导入模块: import asyncio [as 别名]
# 或者: from asyncio import FastChildWatcher [as 别名]
def test_get_child_watcher_after_set(self):
policy = self.create_policy()
watcher = asyncio.FastChildWatcher()
policy.set_child_watcher(watcher)
self.assertIs(policy._watcher, watcher)
self.assertIs(watcher, policy.get_child_watcher()) 示例5: main
# 需要导入模块: import asyncio [as 别名]
# 或者: from asyncio import FastChildWatcher [as 别名]
def main(cls, loop=None, argv=sys.argv):
"""
Runs cli commands in asyncio loop and outputs in appropriate format
"""
if loop is None:
loop = asyncio.get_event_loop()
# In Python 3.8 ThreadedChildWatcher becomes the default which
# should work fine for us. However, in Python 3.7 SafeChildWatcher
# is the default and may cause BlockingIOErrors when many
# subprocesses are created
# https://docs.python.org/3/library/asyncio-policy.html#asyncio.FastChildWatcher
if (
sys.version_info.major == 3
and sys.version_info.minor == 7
and sys.platform != "win32"
):
watcher = asyncio.FastChildWatcher()
asyncio.set_child_watcher(watcher)
watcher.attach_loop(loop)
result = None
try:
result = loop.run_until_complete(cls._main(*argv[1:]))
except KeyboardInterrupt: # pragma: no cover
pass # pragma: no cover
loop.run_until_complete(loop.shutdown_asyncgens())
loop.close()