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gh-96349: fix minor performance regression initializing threading.Event (gh-96350)

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Daniel Giger 2022-08-30 08:10:02 -04:00 committed by GitHub
parent b17aae8bbd
commit 22ed5233b7
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2 changed files with 4 additions and 9 deletions
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12
Lib/threading.py
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@ -262,18 +262,12 @@ class Condition:
# If the lock defines _release_save() and/or _acquire_restore(), # If the lock defines _release_save() and/or _acquire_restore(),
# these override the default implementations (which just call # these override the default implementations (which just call
# release() and acquire() on the lock). Ditto for _is_owned(). # release() and acquire() on the lock). Ditto for _is_owned().
try: if hasattr(lock, '_release_save'):
self._release_save = lock._release_save self._release_save = lock._release_save
except AttributeError: if hasattr(lock, '_acquire_restore'):
pass
try:
self._acquire_restore = lock._acquire_restore self._acquire_restore = lock._acquire_restore
except AttributeError: if hasattr(lock, '_is_owned'):
pass
try:
self._is_owned = lock._is_owned self._is_owned = lock._is_owned
except AttributeError:
pass
self._waiters = _deque() self._waiters = _deque()
def _at_fork_reinit(self): def _at_fork_reinit(self):

1
Misc/NEWS.d/next/Library/2022-08-27-21-26-52.gh-issue-96349.XyYLlO.rst Normal file
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@ -0,0 +1 @@
Fixed a minor performance regression in :func:`threading.Event.__init__`