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gh-83856: Honor atexit for all multiprocessing start methods (GH-114279)

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Use atexit for all multiprocessing start methods to cleanup.
See the GH-114279 PR discussion and related issue for details as to why.
This commit is contained in:
Tian Gao 2024-05-03 11:45:46 -07:00 • committed by GitHub
parent cb57a52a85
commit 998c3856c1
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5 changed files with 34 additions and 5 deletions
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4
Lib/multiprocessing/popen_fork.py
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@ -1,3 +1,4 @@
import atexit
import os
import signal
@ -66,10 +67,13 @@ class Popen(object):
self.pid = os.fork()
if self.pid == 0:
try:
atexit._clear()
atexit.register(util._exit_function)
os.close(parent_r)
os.close(parent_w)
code = process_obj._bootstrap(parent_sentinel=child_r)
finally:
atexit._run_exitfuncs()
os._exit(code)
else:
os.close(child_w)