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# -*- coding: utf-8 -*-
"""
slixmpp.xmlstream.filesocket
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This module is a shim for correcting deficiencies in the file
socket implementation of Python2.6.
Part of Slixmpp: The Slick XMPP Library
:copyright: (c) 2011 Nathanael C. Fritz
:license: MIT, see LICENSE for more details
"""
from socket import _fileobject
import errno
import socket
class FileSocket(_fileobject):
"""Create a file object wrapper for a socket to work around
issues present in Python 2.6 when using sockets as file objects.
The parser for :class:`~xml.etree.cElementTree` requires a file, but
we will be reading from the XMPP connection socket instead.
"""
def read(self, size=4096):
"""Read data from the socket as if it were a file."""
if self._sock is None:
return None
while True:
try:
data = self._sock.recv(size)
break
except socket.error as serr:
if serr.errno != errno.EINTR:
raise
if data is not None:
return data
class Socket26(socket.socket):
"""A custom socket implementation that uses our own FileSocket class
to work around issues in Python 2.6 when using sockets as files.
"""
def makefile(self, mode='r', bufsize=-1):
"""makefile([mode[, bufsize]]) -> file object
Return a regular file object corresponding to the socket. The mode
and bufsize arguments are as for the built-in open() function."""
return FileSocket(self._sock, mode, bufsize)
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