def blockdetection(timeout):
if not timeout:
yield
else:
old_handler = signals['ALRM']
old_handler = None if old_handler == _on_blocking else old_handler
signals['ALRM'] = _on_blocking
try:
yield signals.arm_alarm(timeout)
finally:
if old_handler:
signals['ALRM'] = old_handler
signals.reset_alarm()
def blockdetection(timeout):
if not timeout:
yield
else:
old_handler = signals['ALRM']
old_handler = None if old_handler == _on_blocking else old_handler
signals['ALRM'] = _on_blocking
try:
yield signals.arm_alarm(timeout)
finally:
if old_handler:
signals['ALRM'] = old_handler
signals.reset_alarm()
def blockdetection(timeout):
"""A timeout context using ``SIGALRM`` that can be used to detect blocking
functions."""
if not timeout:
yield
else:
old_handler = signals['ALRM']
old_handler = None if old_handler == _on_blocking else old_handler
signals['ALRM'] = _on_blocking
try:
yield signals.arm_alarm(timeout)
finally:
if old_handler:
signals['ALRM'] = old_handler
signals.reset_alarm()
def blockdetection(timeout):
"""A timeout context using ``SIGALRM`` that can be used to detect blocking
functions."""
if not timeout:
yield
else:
old_handler = signals['ALRM']
old_handler = None if old_handler == _on_blocking else old_handler
signals['ALRM'] = _on_blocking
try:
yield signals.arm_alarm(timeout)
finally:
if old_handler:
signals['ALRM'] = old_handler
signals.reset_alarm()
def blockdetection(timeout):
"""Context that raises an exception if process is blocking.
Uses ``SIGALRM`` to detect blocking functions.
"""
if not timeout:
yield
else:
old_handler = signals['ALRM']
old_handler = None if old_handler == _on_blocking else old_handler
signals['ALRM'] = _on_blocking
try:
yield signals.arm_alarm(timeout)
finally:
if old_handler:
signals['ALRM'] = old_handler
signals.reset_alarm()
def blockdetection(timeout):
"""Context that raises an exception if process is blocking.
Uses ``SIGALRM`` to detect blocking functions.
"""
if not timeout:
yield
else:
old_handler = signals['ALRM']
old_handler = None if old_handler == _on_blocking else old_handler
signals['ALRM'] = _on_blocking
try:
yield signals.arm_alarm(timeout)
finally:
if old_handler:
signals['ALRM'] = old_handler
signals.reset_alarm()
def test_reset_alarm(self):
with patch('signal.alarm') as _alarm:
signals.reset_alarm()
_alarm.assert_called_with(0)
def test_reset_alarm(self):
with patch('signal.alarm') as _alarm:
signals.reset_alarm()
_alarm.assert_called_with(0)
def test_reset_alarm(self):
if sys.platform == 'win32':
raise SkipTest('signal.alarm not available on Windows')
with patch('signal.alarm') as _alarm:
signals.reset_alarm()
_alarm.assert_called_with(0)
def test_reset_alarm(self):
if sys.platform == 'win32':
raise SkipTest('signal.alarm not available on Windows')
with patch('signal.alarm') as _alarm:
signals.reset_alarm()
_alarm.assert_called_with(0)
def test_reset_alarm(self):
if sys.platform == "win32":
raise SkipTest("signal.alarm not available on Windows")
with patch("signal.alarm") as _alarm:
signals.reset_alarm()
_alarm.assert_called_with(0)
