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104 lines
3.7 KiB
104 lines
3.7 KiB
1 year ago
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Tom=C3=A1=C5=A1=20Hrn=C4=8Diar?= <thrnciar@redhat.com>
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Date: Tue, 7 Dec 2021 14:41:59 +0100
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Subject: [PATCH] 00371: Revert "bpo-1596321: Fix threading._shutdown() for the
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main thread (GH-28549) (GH-28589)"
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This reverts commit 38c67738c64304928c68d5c2bd78bbb01d979b94. It
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introduced regression causing FreeIPA's tests to fail.
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For more info see:
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https://bodhi.fedoraproject.org/updates/FEDORA-2021-e152ce5f31
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https://github.com/GrahamDumpleton/mod_wsgi/issues/730
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---
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Lib/test/test_threading.py | 33 ---------------------------------
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Lib/threading.py | 25 ++++++++-----------------
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2 files changed, 8 insertions(+), 50 deletions(-)
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diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py
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index 9c6561c099..84714c03fe 100644
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--- a/Lib/test/test_threading.py
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+++ b/Lib/test/test_threading.py
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@@ -956,39 +956,6 @@ def test_debug_deprecation(self):
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b'is deprecated and will be removed in Python 3.12')
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self.assertIn(msg, err)
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- def test_import_from_another_thread(self):
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- # bpo-1596321: If the threading module is first import from a thread
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- # different than the main thread, threading._shutdown() must handle
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- # this case without logging an error at Python exit.
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- code = textwrap.dedent('''
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- import _thread
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- import sys
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-
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- event = _thread.allocate_lock()
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- event.acquire()
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-
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- def import_threading():
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- import threading
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- event.release()
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-
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- if 'threading' in sys.modules:
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- raise Exception('threading is already imported')
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-
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- _thread.start_new_thread(import_threading, ())
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-
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- # wait until the threading module is imported
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- event.acquire()
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- event.release()
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-
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- if 'threading' not in sys.modules:
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- raise Exception('threading is not imported')
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-
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- # don't wait until the thread completes
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- ''')
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- rc, out, err = assert_python_ok("-c", code)
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- self.assertEqual(out, b'')
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- self.assertEqual(err, b'')
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-
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class ThreadJoinOnShutdown(BaseTestCase):
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diff --git a/Lib/threading.py b/Lib/threading.py
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index 4f72938551..18c10e6489 100644
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--- a/Lib/threading.py
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+++ b/Lib/threading.py
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@@ -1546,29 +1546,20 @@ def _shutdown():
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global _SHUTTING_DOWN
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_SHUTTING_DOWN = True
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+ # Main thread
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+ tlock = _main_thread._tstate_lock
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+ # The main thread isn't finished yet, so its thread state lock can't have
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+ # been released.
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+ assert tlock is not None
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+ assert tlock.locked()
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+ tlock.release()
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+ _main_thread._stop()
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# Call registered threading atexit functions before threads are joined.
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# Order is reversed, similar to atexit.
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for atexit_call in reversed(_threading_atexits):
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atexit_call()
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- # Main thread
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- if _main_thread.ident == get_ident():
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- tlock = _main_thread._tstate_lock
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- # The main thread isn't finished yet, so its thread state lock can't
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- # have been released.
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- assert tlock is not None
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- assert tlock.locked()
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- tlock.release()
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- _main_thread._stop()
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- else:
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- # bpo-1596321: _shutdown() must be called in the main thread.
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- # If the threading module was not imported by the main thread,
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- # _main_thread is the thread which imported the threading module.
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- # In this case, ignore _main_thread, similar behavior than for threads
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- # spawned by C libraries or using _thread.start_new_thread().
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- pass
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-
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# Join all non-deamon threads
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while True:
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with _shutdown_locks_lock:
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