mirror of
https://github.com/Hopiu/linkchecker.git
synced 2026-03-24 18:00:24 +00:00
4d0d76446f
git-svn-id: https://linkchecker.svn.sourceforge.net/svnroot/linkchecker/trunk/linkchecker@2391 e7d03fd6-7b0d-0410-9947-9c21f3af8025
43 lines
1.3 KiB
Python
43 lines
1.3 KiB
Python
# -*- coding: iso-8859-1 -*-
|
|
# Copyright (C) 2005 Bastian Kleineidam
|
|
#
|
|
# This program 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; either version 2 of the License, or
|
|
# (at your option) any later version.
|
|
#
|
|
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
"""
|
|
Locking utility class.
|
|
"""
|
|
|
|
try:
|
|
import threading
|
|
except ImportError:
|
|
import dummy_threading as threading
|
|
|
|
lock_klass = threading.RLock().__class__
|
|
|
|
class AssertLock (lock_klass):
|
|
|
|
def acquire (self, blocking=True):
|
|
"""
|
|
Acquire lock.
|
|
"""
|
|
assert not self._is_owned(), "deadlock"
|
|
super(AssertLock, self).acquire(blocking=blocking)
|
|
|
|
def release (self):
|
|
"""
|
|
Release lock.
|
|
"""
|
|
assert self._is_owned(), "double release"
|
|
super(AssertLock, self).release()
|
|
|