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49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
5 years ago
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# Make sure that libev child watchers, implicitly installed through the use
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# of subprocess, do not cause waitpid() to fail to poll for processes.
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# NOTE: This was only reproducible under python 2.
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from __future__ import print_function
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import gevent
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from gevent import monkey
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monkey.patch_all()
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import sys
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from multiprocessing import Process
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from subprocess import Popen, PIPE
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from gevent import testing as greentest
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def f(sleep_sec):
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gevent.sleep(sleep_sec)
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class TestIssue600(greentest.TestCase):
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__timeout__ = greentest.LARGE_TIMEOUT
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@greentest.skipOnLibuvOnPyPyOnWin("hangs")
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def test_invoke(self):
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# Run a subprocess through Popen to make sure
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# libev is handling SIGCHLD. This could *probably* be simplified to use
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# just hub.loop.install_sigchld
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p = Popen([sys.executable, '-V'], stdout=PIPE, stderr=PIPE)
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gevent.sleep(0)
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p.communicate()
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gevent.sleep(0)
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def test_process(self):
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# Launch
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p = Process(target=f, args=(0.5,))
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p.start()
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with gevent.Timeout(3):
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# Poll for up to 10 seconds. If the bug exists,
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# this will timeout because our subprocess should
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# be long gone by now
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p.join(10)
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if __name__ == '__main__':
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greentest.main()
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