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Apply Amaury's patch to multiprocessing for issue 3125, removes the copy_reg and replaces it with ForkingPickler.register(), which should resolve the conflict with the global registry/ctypes

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This commit is contained in:
Jesse Noller 2008-07-16 14:32:36 +00:00
parent a6c5dc07f4
commit 13e9d582fd
6 changed files with 69 additions and 57 deletions
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33
Lib/multiprocessing/util.py
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@ -8,7 +8,6 @@
import itertools
import weakref
import copy_reg
import atexit
import threading # we want threading to install it's
# cleanup function before multiprocessing does
@ -302,35 +301,3 @@ def __init__(self):
register_after_fork(self, lambda obj : obj.__dict__.clear())
def __reduce__(self):
return type(self), ()
#
# Try making some callable types picklable
#
def _reduce_method(m):
if m.im_self is None:
return getattr, (m.im_class, m.im_func.func_name)
else:
return getattr, (m.im_self, m.im_func.func_name)
copy_reg.pickle(type(Finalize.__init__), _reduce_method)
def _reduce_method_descriptor(m):
return getattr, (m.__objclass__, m.__name__)
copy_reg.pickle(type(list.append), _reduce_method_descriptor)
copy_reg.pickle(type(int.__add__), _reduce_method_descriptor)
def _reduce_builtin_function_or_method(m):
return getattr, (m.__self__, m.__name__)
copy_reg.pickle(type(list().append), _reduce_builtin_function_or_method)
copy_reg.pickle(type(int().__add__), _reduce_builtin_function_or_method)
try:
from functools import partial
except ImportError:
pass
else:
def _reduce_partial(p):
return _rebuild_partial, (p.func, p.args, p.keywords or {})
def _rebuild_partial(func, args, keywords):
return partial(func, *args, **keywords)
copy_reg.pickle(partial, _reduce_partial)