mirror of
https://github.com/Mikaela/Limnoria.git
synced 2024-11-16 07:29:23 +01:00
84 lines
3.5 KiB
Python
84 lines
3.5 KiB
Python
###
|
|
# Copyright (c) 2005, Jeremiah Fincher
|
|
# All rights reserved.
|
|
#
|
|
# Redistribution and use in source and binary forms, with or without
|
|
# modification, are permitted provided that the following conditions are met:
|
|
#
|
|
# * Redistributions of source code must retain the above copyright notice,
|
|
# this list of conditions, and the following disclaimer.
|
|
# * Redistributions in binary form must reproduce the above copyright notice,
|
|
# this list of conditions, and the following disclaimer in the
|
|
# documentation and/or other materials provided with the distribution.
|
|
# * Neither the name of the author of this software nor the name of
|
|
# contributors to this software may be used to endorse or promote products
|
|
# derived from this software without specific prior written consent.
|
|
#
|
|
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
# POSSIBILITY OF SUCH DAMAGE.
|
|
###
|
|
|
|
import types
|
|
import threading
|
|
|
|
def changeFunctionName(f, name, doc=None):
|
|
if doc is None:
|
|
doc = f.__doc__
|
|
newf = types.FunctionType(f.func_code, f.func_globals, name,
|
|
f.func_defaults, f.func_closure)
|
|
newf.__doc__ = doc
|
|
return newf
|
|
|
|
class Object(object):
|
|
def __ne__(self, other):
|
|
return not self == other
|
|
|
|
|
|
class Synchronized(type):
|
|
METHODS = '__synchronized__'
|
|
LOCK = '_Synchronized_rlock'
|
|
def __new__(cls, name, bases, dict):
|
|
sync = set()
|
|
for base in bases:
|
|
if hasattr(base, Synchronized.METHODS):
|
|
sync.update(getattr(base, Synchronized.METHODS))
|
|
if Synchronized.METHODS in dict:
|
|
sync.update(dict[Synchronized.METHODS])
|
|
if sync:
|
|
def synchronized(f):
|
|
def g(self, *args, **kwargs):
|
|
lock = getattr(self, Synchronized.LOCK)
|
|
lock.acquire()
|
|
try:
|
|
f(self, *args, **kwargs)
|
|
finally:
|
|
lock.release()
|
|
return changeFunctionName(g, f.func_name, f.__doc__)
|
|
for attr in sync:
|
|
if attr in dict:
|
|
dict[attr] = synchronized(dict[attr])
|
|
original__init__ = dict.get('__init__')
|
|
def __init__(self, *args, **kwargs):
|
|
if not hasattr(self, Synchronized.LOCK):
|
|
setattr(self, Synchronized.LOCK, threading.RLock())
|
|
if original__init__:
|
|
original__init__(self, *args, **kwargs)
|
|
else:
|
|
# newclass is defined below.
|
|
super(newclass, self).__init__(*args, **kwargs)
|
|
dict['__init__'] = __init__
|
|
newclass = super(Synchronized, cls).__new__(cls, name, bases, dict)
|
|
return newclass
|
|
|
|
|
|
# vim:set shiftwidth=4 softtabstop=8 expandtab textwidth=78:
|