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* gh-71936: Fix race condition in multiprocessing.Pool Proxes of shared objects register a Finalizer in BaseProxy._incref(), and it will call BaseProxy._decref() when it is GCed. This may cause a race condition with Pool(maxtasksperchild=None) on Windows. A connection would be closed and raised TypeError when a GC occurs between _ConnectionBase._check_writable() and _ConnectionBase._send_bytes() in _ConnectionBase.send() in the second or later task, and a new object is allocated that shares the id() of a previously deleted one. Instead of using the id() of the token (or the proxy), use a unique, non-reusable number. Co-Authored-By: Akinori Hattori <hattya@gmail.com> |
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.. | ||
dummy | ||
__init__.py | ||
connection.py | ||
context.py | ||
forkserver.py | ||
heap.py | ||
managers.py | ||
pool.py | ||
popen_fork.py | ||
popen_forkserver.py | ||
popen_spawn_posix.py | ||
popen_spawn_win32.py | ||
process.py | ||
queues.py | ||
reduction.py | ||
resource_sharer.py | ||
resource_tracker.py | ||
shared_memory.py | ||
sharedctypes.py | ||
spawn.py | ||
synchronize.py | ||
util.py |