Comment 4 for bug 1256198

Fix committed.

Tested with the open_with plugin on windows.

Tested with the following snippet (calibre-debug -e) on both windows and linux. Not tested on macs.

import socket
from calibre.utils.socket_inheritance import set_socket_inherit
from calibre.utils.socket_inheritance import get_socket_inherit

socket = socket.socket()
print get_socket_inherit(socket)
set_socket_inherit(socket, False)
print get_socket_inherit(socket)
set_socket_inherit(socket, True)
print get_socket_inherit(socket)

FWIW: the code provided in that link is wrong. It inverted the sense of the inherit flag on windows.