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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.
(cherry picked from commit
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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 | ||