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Issue #3125: Remove copy_reg in multiprocessing and replace it with

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ForkingPickler.register() to resolve conflict with ctypes.
This commit is contained in:
Amaury Forgeot d'Arc 2008-08-19 21:30:55 +00:00
parent 3ad89100c1
commit 949d47dc7a
5 changed files with 66 additions and 58 deletions
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15
Lib/multiprocessing/reduction.py
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@ -13,11 +13,10 @@ import os
import sys
import socket
import threading
import copyreg
import _multiprocessing
from multiprocessing import current_process
from multiprocessing.forking import Popen, duplicate, close
from multiprocessing.forking import Popen, duplicate, close, ForkingPickler
from multiprocessing.util import register_after_fork, debug, sub_debug
from multiprocessing.connection import Client, Listener
@ -134,7 +133,7 @@ def rebuild_handle(pickled_data):
return new_handle
#
# Register `_multiprocessing.Connection` with `copy_reg`
# Register `_multiprocessing.Connection` with `ForkingPickler`
#
def reduce_connection(conn):
@ -147,10 +146,10 @@ def rebuild_connection(reduced_handle, readable, writable):
handle, readable=readable, writable=writable
)
copyreg.pickle(_multiprocessing.Connection, reduce_connection)
ForkingPickler.register(_multiprocessing.Connection, reduce_connection)
#
# Register `socket.socket` with `copy_reg`
# Register `socket.socket` with `ForkingPickler`
#
def fromfd(fd, family, type_, proto=0):
@ -169,10 +168,10 @@ def rebuild_socket(reduced_handle, family, type_, proto):
close(fd)
return _sock
copyreg.pickle(socket.socket, reduce_socket)
ForkingPickler.register(socket.socket, reduce_socket)
#
# Register `_multiprocessing.PipeConnection` with `copy_reg`
# Register `_multiprocessing.PipeConnection` with `ForkingPickler`
#
if sys.platform == 'win32':
@ -187,4 +186,4 @@ if sys.platform == 'win32':
handle, readable=readable, writable=writable
)
copyreg.pickle(_multiprocessing.PipeConnection, reduce_pipe_connection)
ForkingPickler.register(_multiprocessing.PipeConnection, reduce_pipe_connection)