You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
99 lines
3.6 KiB
99 lines
3.6 KiB
# Copyright (c) 2001-2007 Twisted Matrix Laboratories.
|
|
# Permission is hereby granted, free of charge, to any person obtaining
|
|
# a copy of this software and associated documentation files (the
|
|
# "Software"), to deal in the Software without restriction, including
|
|
# without limitation the rights to use, copy, modify, merge, publish,
|
|
# distribute, sublicense, and/or sell copies of the Software, and to
|
|
# permit persons to whom the Software is furnished to do so, subject to
|
|
# the following conditions:
|
|
#
|
|
# The above copyright notice and this permission notice shall be
|
|
# included in all copies or substantial portions of the Software.
|
|
#
|
|
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
"""Error formatting function for Windows.
|
|
|
|
The code is taken from twisted.python.win32 module.
|
|
"""
|
|
|
|
from __future__ import absolute_import
|
|
import os
|
|
|
|
|
|
__all__ = ['formatError']
|
|
|
|
|
|
class _ErrorFormatter(object):
|
|
"""
|
|
Formatter for Windows error messages.
|
|
|
|
@ivar winError: A callable which takes one integer error number argument
|
|
and returns an L{exceptions.WindowsError} instance for that error (like
|
|
L{ctypes.WinError}).
|
|
|
|
@ivar formatMessage: A callable which takes one integer error number
|
|
argument and returns a C{str} giving the message for that error (like
|
|
L{win32api.FormatMessage}).
|
|
|
|
@ivar errorTab: A mapping from integer error numbers to C{str} messages
|
|
which correspond to those errors (like L{socket.errorTab}).
|
|
"""
|
|
def __init__(self, WinError, FormatMessage, errorTab):
|
|
self.winError = WinError
|
|
self.formatMessage = FormatMessage
|
|
self.errorTab = errorTab
|
|
|
|
@classmethod
|
|
def fromEnvironment(cls):
|
|
"""
|
|
Get as many of the platform-specific error translation objects as
|
|
possible and return an instance of C{cls} created with them.
|
|
"""
|
|
try:
|
|
from ctypes import WinError
|
|
except ImportError:
|
|
WinError = None
|
|
try:
|
|
from win32api import FormatMessage
|
|
except ImportError:
|
|
FormatMessage = None
|
|
try:
|
|
from socket import errorTab
|
|
except ImportError:
|
|
errorTab = None
|
|
return cls(WinError, FormatMessage, errorTab)
|
|
|
|
def formatError(self, errorcode):
|
|
"""
|
|
Returns the string associated with a Windows error message, such as the
|
|
ones found in socket.error.
|
|
|
|
Attempts direct lookup against the win32 API via ctypes and then
|
|
pywin32 if available), then in the error table in the socket module,
|
|
then finally defaulting to C{os.strerror}.
|
|
|
|
@param errorcode: the Windows error code
|
|
@type errorcode: C{int}
|
|
|
|
@return: The error message string
|
|
@rtype: C{str}
|
|
"""
|
|
if self.winError is not None:
|
|
return str(self.winError(errorcode))
|
|
if self.formatMessage is not None:
|
|
return self.formatMessage(errorcode)
|
|
if self.errorTab is not None:
|
|
result = self.errorTab.get(errorcode)
|
|
if result is not None:
|
|
return result
|
|
return os.strerror(errorcode)
|
|
|
|
formatError = _ErrorFormatter.fromEnvironment().formatError
|