Merge "Restore correct signal handling in Python3"
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commit
2c44e7fe43
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@ -28,7 +28,6 @@ import io
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import logging
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import logging
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import os
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import os
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import random
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import random
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import select
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import signal
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import signal
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import six
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import six
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import sys
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import sys
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@ -204,8 +203,9 @@ class SignalHandler(object):
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For Python 3.5 and later, deal with the changes in PEP 475 that prevent
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For Python 3.5 and later, deal with the changes in PEP 475 that prevent
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a signal from interrupting eventlet's call to poll() or sleep().
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a signal from interrupting eventlet's call to poll() or sleep().
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"""
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"""
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select_module = eventlet.patcher.original('select')
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self.__force_interrupt_on_signal = (sys.version_info >= (3, 5) and
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self.__force_interrupt_on_signal = (sys.version_info >= (3, 5) and
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hasattr(select, 'poll'))
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hasattr(select_module, 'poll'))
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if self.__force_interrupt_on_signal:
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if self.__force_interrupt_on_signal:
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try:
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try:
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@ -478,15 +478,28 @@ class ProcessLauncherTest(base.ServiceBaseTestCase):
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signal_handler.clear()
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signal_handler.clear()
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@mock.patch('sys.version_info', (3, 5))
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@mock.patch('sys.version_info', (3, 5))
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@mock.patch.object(service, 'select', spec=[])
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def test_setup_signal_interruption_no_select_poll(self):
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def test_setup_signal_interruption_no_select_poll(self, mock_select):
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# NOTE(claudiub): SignalHandler is a singleton, which means that it
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# might already be initialized. We need to clear to clear the cache
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# in order to prevent race conditions between tests.
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service.SignalHandler.__class__._instances.clear()
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with mock.patch('eventlet.patcher.original',
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return_value=object()) as get_original:
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signal_handler = service.SignalHandler()
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get_original.assert_called_with('select')
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self.addCleanup(service.SignalHandler.__class__._instances.clear)
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self.assertFalse(
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signal_handler._SignalHandler__force_interrupt_on_signal)
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@mock.patch('sys.version_info', (3, 5))
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def test_setup_signal_interruption_select_poll(self):
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# NOTE(claudiub): SignalHandler is a singleton, which means that it
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# NOTE(claudiub): SignalHandler is a singleton, which means that it
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# might already be initialized. We need to clear to clear the cache
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# might already be initialized. We need to clear to clear the cache
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# in order to prevent race conditions between tests.
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# in order to prevent race conditions between tests.
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service.SignalHandler.__class__._instances.clear()
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service.SignalHandler.__class__._instances.clear()
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signal_handler = service.SignalHandler()
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signal_handler = service.SignalHandler()
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self.addCleanup(service.SignalHandler.__class__._instances.clear)
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self.addCleanup(service.SignalHandler.__class__._instances.clear)
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self.assertFalse(
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self.assertTrue(
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signal_handler._SignalHandler__force_interrupt_on_signal)
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signal_handler._SignalHandler__force_interrupt_on_signal)
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@mock.patch('signal.alarm')
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@mock.patch('signal.alarm')
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