Python threading._Event() Examples
The following are 18
code examples of threading._Event().
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Example #1
| Source File: tracker.py From vnpy_crypto with MIT License | 6 votes |
|
def __init__(self, *towatch):
"""MessageTracker(*towatch)
Create a message tracker to track a set of mesages.
Parameters
----------
*towatch : tuple of Event, MessageTracker, Message instances.
This list of objects to track. This class can track the low-level
Events used by the Message class, other MessageTrackers or
actual Messages.
"""
self.events = set()
self.peers = set()
for obj in towatch:
if isinstance(obj, Event):
self.events.add(obj)
elif isinstance(obj, MessageTracker):
self.peers.add(obj)
elif isinstance(obj, Frame):
if not obj.tracker:
raise ValueError("Not a tracked message")
self.peers.add(obj.tracker)
else:
raise TypeError("Require Events or Message Frames, not %s"%type(obj))
Example #2
| Source File: tracker.py From Computable with MIT License | 6 votes |
|
def __init__(self, *towatch):
"""MessageTracker(*towatch)
Create a message tracker to track a set of mesages.
Parameters
----------
*towatch : tuple of Event, MessageTracker, Message instances.
This list of objects to track. This class can track the low-level
Events used by the Message class, other MessageTrackers or
actual Messages.
"""
self.events = set()
self.peers = set()
for obj in towatch:
if isinstance(obj, Event):
self.events.add(obj)
elif isinstance(obj, MessageTracker):
self.peers.add(obj)
elif isinstance(obj, Frame):
if not obj.tracker:
raise ValueError("Not a tracked message")
self.peers.add(obj.tracker)
else:
raise TypeError("Require Events or Message Frames, not %s"%type(obj))
Example #3
| Source File: tracker.py From pySINDy with MIT License | 6 votes |
|
def __init__(self, *towatch):
"""MessageTracker(*towatch)
Create a message tracker to track a set of mesages.
Parameters
----------
*towatch : tuple of Event, MessageTracker, Message instances.
This list of objects to track. This class can track the low-level
Events used by the Message class, other MessageTrackers or
actual Messages.
"""
self.events = set()
self.peers = set()
for obj in towatch:
if isinstance(obj, Event):
self.events.add(obj)
elif isinstance(obj, MessageTracker):
self.peers.add(obj)
elif isinstance(obj, Frame):
if not obj.tracker:
raise ValueError("Not a tracked message")
self.peers.add(obj.tracker)
else:
raise TypeError("Require Events or Message Frames, not %s"%type(obj))
Example #4
| Source File: tracker.py From Carnets with BSD 3-Clause "New" or "Revised" License | 6 votes |
|
def __init__(self, *towatch):
"""MessageTracker(*towatch)
Create a message tracker to track a set of mesages.
Parameters
----------
*towatch : tuple of Event, MessageTracker, Message instances.
This list of objects to track. This class can track the low-level
Events used by the Message class, other MessageTrackers or
actual Messages.
"""
self.events = set()
self.peers = set()
for obj in towatch:
if isinstance(obj, Event):
self.events.add(obj)
elif isinstance(obj, MessageTracker):
self.peers.add(obj)
elif isinstance(obj, Frame):
if not obj.tracker:
raise ValueError("Not a tracked message")
self.peers.add(obj.tracker)
else:
raise TypeError("Require Events or Message Frames, not %s"%type(obj))
Example #5
| Source File: test_eventletutils.py From oslo.utils with Apache License 2.0 | 6 votes |
|
def test_event_api_compat(self, mock_eventlet):
with mock.patch('oslo_utils.eventletutils.is_monkey_patched',
return_value=True):
e_event = eventletutils.Event()
self.assertIsInstance(e_event, eventletutils.EventletEvent)
t_event = eventletutils.Event()
if six.PY3:
t_event_cls = threading.Event
else:
t_event_cls = threading._Event
self.assertIsInstance(t_event, t_event_cls)
public_methods = [m for m in dir(t_event) if not m.startswith("_") and
callable(getattr(t_event, m))]
for method in public_methods:
self.assertTrue(hasattr(e_event, method))
# Ensure set() allows multiple invocations, same as in
# threading implementation.
e_event.set()
self.assertTrue(e_event.isSet())
e_event.set()
self.assertTrue(e_event.isSet())
Example #6
| Source File: test_multiprocessing.py From ironpython2 with Apache License 2.0 | 5 votes |
|
def test_event(self):
event = self.Event()
wait = TimingWrapper(event.wait)
# Removed temporarily, due to API shear, this does not
# work with threading._Event objects. is_set == isSet
self.assertEqual(event.is_set(), False)
# Removed, threading.Event.wait() will return the value of the __flag
# instead of None. API Shear with the semaphore backed mp.Event
self.assertEqual(wait(0.0), False)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), False)
self.assertTimingAlmostEqual(wait.elapsed, TIMEOUT1)
event.set()
# See note above on the API differences
self.assertEqual(event.is_set(), True)
self.assertEqual(wait(), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
# self.assertEqual(event.is_set(), True)
event.clear()
#self.assertEqual(event.is_set(), False)
p = self.Process(target=self._test_event, args=(event,))
p.daemon = True
p.start()
self.assertEqual(wait(), True)
#
#
#
Example #7
| Source File: __init__.py From OpenMTC with Eclipse Public License 1.0 | 5 votes |
|
def wait(self, timeout = None):
super(_Event, self).wait(timeout = timeout)
return self.is_set()
Example #8
| Source File: test_multiprocessing.py From BinderFilter with MIT License | 5 votes |
|
def test_event(self):
event = self.Event()
wait = TimingWrapper(event.wait)
# Removed temporarily, due to API shear, this does not
# work with threading._Event objects. is_set == isSet
self.assertEqual(event.is_set(), False)
# Removed, threading.Event.wait() will return the value of the __flag
# instead of None. API Shear with the semaphore backed mp.Event
self.assertEqual(wait(0.0), False)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), False)
self.assertTimingAlmostEqual(wait.elapsed, TIMEOUT1)
event.set()
# See note above on the API differences
self.assertEqual(event.is_set(), True)
self.assertEqual(wait(), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
# self.assertEqual(event.is_set(), True)
event.clear()
#self.assertEqual(event.is_set(), False)
p = self.Process(target=self._test_event, args=(event,))
p.daemon = True
p.start()
self.assertEqual(wait(), True)
#
#
#
Example #9
| Source File: test_multiprocessing.py From oss-ftp with MIT License | 5 votes |
|
def test_event(self):
event = self.Event()
wait = TimingWrapper(event.wait)
# Removed temporarily, due to API shear, this does not
# work with threading._Event objects. is_set == isSet
self.assertEqual(event.is_set(), False)
# Removed, threading.Event.wait() will return the value of the __flag
# instead of None. API Shear with the semaphore backed mp.Event
self.assertEqual(wait(0.0), False)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), False)
self.assertTimingAlmostEqual(wait.elapsed, TIMEOUT1)
event.set()
# See note above on the API differences
self.assertEqual(event.is_set(), True)
self.assertEqual(wait(), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
# self.assertEqual(event.is_set(), True)
event.clear()
#self.assertEqual(event.is_set(), False)
p = self.Process(target=self._test_event, args=(event,))
p.daemon = True
p.start()
self.assertEqual(wait(), True)
#
#
#
Example #10
| Source File: test_multiprocessing.py From gcblue with BSD 3-Clause "New" or "Revised" License | 5 votes |
|
def test_event(self):
event = self.Event()
wait = TimingWrapper(event.wait)
# Removed temporarily, due to API shear, this does not
# work with threading._Event objects. is_set == isSet
self.assertEqual(event.is_set(), False)
# Removed, threading.Event.wait() will return the value of the __flag
# instead of None. API Shear with the semaphore backed mp.Event
self.assertEqual(wait(0.0), False)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), False)
self.assertTimingAlmostEqual(wait.elapsed, TIMEOUT1)
event.set()
# See note above on the API differences
self.assertEqual(event.is_set(), True)
self.assertEqual(wait(), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
# self.assertEqual(event.is_set(), True)
event.clear()
#self.assertEqual(event.is_set(), False)
p = self.Process(target=self._test_event, args=(event,))
p.daemon = True
p.start()
self.assertEqual(wait(), True)
#
#
#
Example #11
| Source File: test_multiprocessing.py From CTFCrackTools-V2 with GNU General Public License v3.0 | 5 votes |
|
def test_event(self):
event = self.Event()
wait = TimingWrapper(event.wait)
# Removed temporarily, due to API shear, this does not
# work with threading._Event objects. is_set == isSet
self.assertEqual(event.is_set(), False)
# Removed, threading.Event.wait() will return the value of the __flag
# instead of None. API Shear with the semaphore backed mp.Event
self.assertEqual(wait(0.0), False)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), False)
self.assertTimingAlmostEqual(wait.elapsed, TIMEOUT1)
event.set()
# See note above on the API differences
self.assertEqual(event.is_set(), True)
self.assertEqual(wait(), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
# self.assertEqual(event.is_set(), True)
event.clear()
#self.assertEqual(event.is_set(), False)
p = self.Process(target=self._test_event, args=(event,))
p.daemon = True
p.start()
self.assertEqual(wait(), True)
#
#
#
Example #12
| Source File: caching.py From moviegrabber with GNU General Public License v3.0 | 5 votes |
|
def __setitem__(self, key, value):
"""Set the cached value for the given key."""
existing = self.get(key)
dict.__setitem__(self, key, value)
if isinstance(existing, threading._Event):
# Set Event.result so other threads waiting on it have
# immediate access without needing to poll the cache again.
existing.result = value
existing.set()
Example #13
| Source File: test_printer.py From mecode with MIT License | 5 votes |
|
def test_ok_received(self):
self.assertIsInstance(self.p._ok_received, Event)
self.assertTrue(self.p._ok_received.is_set())
Example #14
| Source File: test_multiprocessing.py From CTFCrackTools with GNU General Public License v3.0 | 5 votes |
|
def test_event(self):
event = self.Event()
wait = TimingWrapper(event.wait)
# Removed temporarily, due to API shear, this does not
# work with threading._Event objects. is_set == isSet
self.assertEqual(event.is_set(), False)
# Removed, threading.Event.wait() will return the value of the __flag
# instead of None. API Shear with the semaphore backed mp.Event
self.assertEqual(wait(0.0), False)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), False)
self.assertTimingAlmostEqual(wait.elapsed, TIMEOUT1)
event.set()
# See note above on the API differences
self.assertEqual(event.is_set(), True)
self.assertEqual(wait(), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
# self.assertEqual(event.is_set(), True)
event.clear()
#self.assertEqual(event.is_set(), False)
p = self.Process(target=self._test_event, args=(event,))
p.daemon = True
p.start()
self.assertEqual(wait(), True)
#
#
#
Example #15
| Source File: _test_multiprocessing.py From Fluid-Designer with GNU General Public License v3.0 | 4 votes |
|
def test_event(self):
event = self.Event()
wait = TimingWrapper(event.wait)
# Removed temporarily, due to API shear, this does not
# work with threading._Event objects. is_set == isSet
self.assertEqual(event.is_set(), False)
# Removed, threading.Event.wait() will return the value of the __flag
# instead of None. API Shear with the semaphore backed mp.Event
self.assertEqual(wait(0.0), False)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), False)
self.assertTimingAlmostEqual(wait.elapsed, TIMEOUT1)
event.set()
# See note above on the API differences
self.assertEqual(event.is_set(), True)
self.assertEqual(wait(), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
# self.assertEqual(event.is_set(), True)
event.clear()
#self.assertEqual(event.is_set(), False)
p = self.Process(target=self._test_event, args=(event,))
p.daemon = True
p.start()
self.assertEqual(wait(), True)
#
# Tests for Barrier - adapted from tests in test/lock_tests.py
#
# Many of the tests for threading.Barrier use a list as an atomic
# counter: a value is appended to increment the counter, and the
# length of the list gives the value. We use the class DummyList
# for the same purpose.
Example #16
| Source File: _test_multiprocessing.py From ironpython3 with Apache License 2.0 | 4 votes |
|
def test_event(self):
event = self.Event()
wait = TimingWrapper(event.wait)
# Removed temporarily, due to API shear, this does not
# work with threading._Event objects. is_set == isSet
self.assertEqual(event.is_set(), False)
# Removed, threading.Event.wait() will return the value of the __flag
# instead of None. API Shear with the semaphore backed mp.Event
self.assertEqual(wait(0.0), False)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), False)
self.assertTimingAlmostEqual(wait.elapsed, TIMEOUT1)
event.set()
# See note above on the API differences
self.assertEqual(event.is_set(), True)
self.assertEqual(wait(), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
# self.assertEqual(event.is_set(), True)
event.clear()
#self.assertEqual(event.is_set(), False)
p = self.Process(target=self._test_event, args=(event,))
p.daemon = True
p.start()
self.assertEqual(wait(), True)
#
# Tests for Barrier - adapted from tests in test/lock_tests.py
#
# Many of the tests for threading.Barrier use a list as an atomic
# counter: a value is appended to increment the counter, and the
# length of the list gives the value. We use the class DummyList
# for the same purpose.
Example #17
| Source File: _test_multiprocessing.py From Project-New-Reign---Nemesis-Main with GNU General Public License v3.0 | 4 votes |
|
def test_event(self):
event = self.Event()
wait = TimingWrapper(event.wait)
# Removed temporarily, due to API shear, this does not
# work with threading._Event objects. is_set == isSet
self.assertEqual(event.is_set(), False)
# Removed, threading.Event.wait() will return the value of the __flag
# instead of None. API Shear with the semaphore backed mp.Event
self.assertEqual(wait(0.0), False)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), False)
self.assertTimingAlmostEqual(wait.elapsed, TIMEOUT1)
event.set()
# See note above on the API differences
self.assertEqual(event.is_set(), True)
self.assertEqual(wait(), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
self.assertEqual(wait(TIMEOUT1), True)
self.assertTimingAlmostEqual(wait.elapsed, 0.0)
# self.assertEqual(event.is_set(), True)
event.clear()
#self.assertEqual(event.is_set(), False)
p = self.Process(target=self._test_event, args=(event,))
p.daemon = True
p.start()
self.assertEqual(wait(), True)
#
# Tests for Barrier - adapted from tests in test/lock_tests.py
#
# Many of the tests for threading.Barrier use a list as an atomic
# counter: a value is appended to increment the counter, and the
# length of the list gives the value. We use the class DummyList
# for the same purpose.
Example #18
| Source File: caching.py From moviegrabber with GNU General Public License v3.0 | 4 votes |
|
def wait(self, key, timeout=5, debug=False):
"""Return the cached value for the given key, or None.
If timeout is not None, and the value is already
being calculated by another thread, wait until the given timeout has
elapsed. If the value is available before the timeout expires, it is
returned. If not, None is returned, and a sentinel placed in the cache
to signal other threads to wait.
If timeout is None, no waiting is performed nor sentinels used.
"""
value = self.get(key)
if isinstance(value, threading._Event):
if timeout is None:
# Ignore the other thread and recalc it ourselves.
if debug:
cherrypy.log('No timeout', 'TOOLS.CACHING')
return None
# Wait until it's done or times out.
if debug:
cherrypy.log('Waiting up to %s seconds' % timeout, 'TOOLS.CACHING')
value.wait(timeout)
if value.result is not None:
# The other thread finished its calculation. Use it.
if debug:
cherrypy.log('Result!', 'TOOLS.CACHING')
return value.result
# Timed out. Stick an Event in the slot so other threads wait
# on this one to finish calculating the value.
if debug:
cherrypy.log('Timed out', 'TOOLS.CACHING')
e = threading.Event()
e.result = None
dict.__setitem__(self, key, e)
return None
elif value is None:
# Stick an Event in the slot so other threads wait
# on this one to finish calculating the value.
if debug:
cherrypy.log('Timed out', 'TOOLS.CACHING')
e = threading.Event()
e.result = None
dict.__setitem__(self, key, e)
return value
