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Issue #15101: Make pool finalizer avoid joining current thread

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This commit is contained in:
Richard Oudkerk 2012-06-18 15:37:31 +01:00
parent 48ee6908bc
commit 4215d2738a
2 changed files with 8 additions and 3 deletions
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5
Lib/multiprocessing/pool.py
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@ -489,7 +489,8 @@ class Pool(object):
# We must wait for the worker handler to exit before terminating # We must wait for the worker handler to exit before terminating
# workers because we don't want workers to be restarted behind our back. # workers because we don't want workers to be restarted behind our back.
debug('joining worker handler') debug('joining worker handler')
worker_handler.join() if threading.current_thread() is not worker_handler:
worker_handler.join(1e100)
# Terminate workers which haven't already finished. # Terminate workers which haven't already finished.
if pool and hasattr(pool[0], 'terminate'): if pool and hasattr(pool[0], 'terminate'):
@ -499,9 +500,11 @@ class Pool(object):
p.terminate() p.terminate()
debug('joining task handler') debug('joining task handler')
if threading.current_thread() is not task_handler:
task_handler.join(1e100) task_handler.join(1e100)
debug('joining result handler') debug('joining result handler')
if threading.current_thread() is not result_handler:
result_handler.join(1e100) result_handler.join(1e100)
if pool and hasattr(pool[0], 'terminate'): if pool and hasattr(pool[0], 'terminate'):

2
Misc/NEWS
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@ -67,6 +67,8 @@ Core and Builtins
Library Library
------- -------
- Issue #15101: Make pool finalizer avoid joining current thread.
- Issue #15054: A bug in tokenize.tokenize that caused string literals - Issue #15054: A bug in tokenize.tokenize that caused string literals
with 'b' and 'br' prefixes to be incorrectly tokenized has been fixed. with 'b' and 'br' prefixes to be incorrectly tokenized has been fixed.
Patch by Serhiy Storchaka. Patch by Serhiy Storchaka.