diff options
Diffstat (limited to 'lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/monkeypatches/bug4881.py')
| -rw-r--r-- | lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/monkeypatches/bug4881.py | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/monkeypatches/bug4881.py b/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/monkeypatches/bug4881.py deleted file mode 100644 index aaa4bba3..00000000 --- a/lib/python2.7/site-packages/buildbot-0.8.8-py2.7.egg/buildbot/monkeypatches/bug4881.py +++ /dev/null @@ -1,213 +0,0 @@ -# coding=utf-8 -# This file is part of Buildbot. Buildbot is free software: you can -# redistribute it and/or modify it under the terms of the GNU General Public -# License as published by the Free Software Foundation, version 2. -# -# This program is distributed in the hope that it will be useful, but WITHOUT -# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS -# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more -# details. -# -# You should have received a copy of the GNU General Public License along with -# this program; if not, write to the Free Software Foundation, Inc., 51 -# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. -# -# Copyright Buildbot Team Members - -import os -from twisted.internet import process -from twisted.python import log - -def patch(): - log.msg("Applying patch for http://twistedmatrix.com/trac/ticket/4881") - process._listOpenFDs = _listOpenFDs - -############################################################################# -# Everything below this line was taken verbatim from Twisted, except as -# annotated. - -######## -# r31474:trunk/LICENSE - -# Copyright (c) 2001-2010 -# Allen Short -# Andy Gayton -# Andrew Bennetts -# Antoine Pitrou -# Apple Computer, Inc. -# Benjamin Bruheim -# Bob Ippolito -# Canonical Limited -# Christopher Armstrong -# David Reid -# Donovan Preston -# Eric Mangold -# Eyal Lotem -# Itamar Shtull-Trauring -# James Knight -# Jason A. Mobarak -# Jean-Paul Calderone -# Jessica McKellar -# Jonathan Jacobs -# Jonathan Lange -# Jonathan D. Simms -# Jürgen Hermann -# Kevin Horn -# Kevin Turner -# Mary Gardiner -# Matthew Lefkowitz -# Massachusetts Institute of Technology -# Moshe Zadka -# Paul Swartz -# Pavel Pergamenshchik -# Ralph Meijer -# Sean Riley -# Software Freedom Conservancy -# Travis B. Hartwell -# Thijs Triemstra -# Thomas Herve -# Timothy Allen -# -# 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. - -######## -# r31474:trunk/twisted/internet/process.py - -# Copyright (c) Twisted Matrix Laboratories. -# See LICENSE for details. - -class _FDDetector(object): - """ - This class contains the logic necessary to decide which of the available - system techniques should be used to detect the open file descriptors for - the current process. The chosen technique gets monkey-patched into the - _listOpenFDs method of this class so that the detection only needs to occur - once. - - @ivars listdir: The implementation of listdir to use. This gets overwritten - by the test cases. - @ivars getpid: The implementation of getpid to use, returns the PID of the - running process. - @ivars openfile: The implementation of open() to use, by default the Python - builtin. - """ - # So that we can unit test this - listdir = os.listdir - getpid = os.getpid - openfile = open - - - def _listOpenFDs(self): - """ - Figure out which implementation to use, then run it. - """ - self._listOpenFDs = self._getImplementation() - return self._listOpenFDs() - - - def _getImplementation(self): - """ - Check if /dev/fd works, if so, use that. Otherwise, check if - /proc/%d/fd exists, if so use that. - - Otherwise, ask resource.getrlimit, if that throws an exception, then - fallback to _fallbackFDImplementation. - """ - try: - self.listdir("/dev/fd") - if self._checkDevFDSanity(): # FreeBSD support :-) - return self._devFDImplementation - else: - return self._fallbackFDImplementation - except: - try: - self.listdir("/proc/%d/fd" % (self.getpid(),)) - return self._procFDImplementation - except: - try: - self._resourceFDImplementation() # Imports resource - return self._resourceFDImplementation - except: - return self._fallbackFDImplementation - - - def _checkDevFDSanity(self): - """ - Returns true iff opening a file modifies the fds visible - in /dev/fd, as it should on a sane platform. - """ - start = self.listdir("/dev/fd") - self.openfile("/dev/null", "r") # changed in Buildbot to hush pyflakes - end = self.listdir("/dev/fd") - return start != end - - - def _devFDImplementation(self): - """ - Simple implementation for systems where /dev/fd actually works. - See: http://www.freebsd.org/cgi/man.cgi?fdescfs - """ - dname = "/dev/fd" - result = [int(fd) for fd in os.listdir(dname)] - return result - - - def _procFDImplementation(self): - """ - Simple implementation for systems where /proc/pid/fd exists (we assume - it works). - """ - dname = "/proc/%d/fd" % (os.getpid(),) - return [int(fd) for fd in os.listdir(dname)] - - - def _resourceFDImplementation(self): - """ - Fallback implementation where the resource module can inform us about - how many FDs we can expect. - - Note that on OS-X we expect to be using the /dev/fd implementation. - """ - import resource - maxfds = resource.getrlimit(resource.RLIMIT_NOFILE)[1] + 1 - # OS-X reports 9223372036854775808. That's a lot of fds - # to close - if maxfds > 1024: - maxfds = 1024 - return xrange(maxfds) - - - def _fallbackFDImplementation(self): - """ - Fallback-fallback implementation where we just assume that we need to - close 256 FDs. - """ - maxfds = 256 - return xrange(maxfds) - - -detector = _FDDetector() - -def _listOpenFDs(): - """ - Use the global detector object to figure out which FD implementation to - use. - """ - return detector._listOpenFDs() |