69 lines
2.1 KiB
Python
69 lines
2.1 KiB
Python
"""\
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@file tls.py
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@author Donovan Preston
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Copyright (c) 2006-2007, Linden Research, Inc.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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"""
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try:
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import threading
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except ImportError:
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class Dummy(object): pass
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the_thread = Dummy()
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class threading(object):
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def currentThread():
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return the_thread
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currentThread = staticmethod(currentThread)
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import weakref
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__all__ = ['local']
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class _local(object):
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"""
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Crappy Python 2.3 compatible implementation of thread-local storage
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"""
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__slots__ = ('__thread_dict__',)
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def __init__(self):
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object.__setattr__(self, '__thread_dict__', weakref.WeakKeyDictionary())
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def __getattr__(self, attr):
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try:
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return self.__thread_dict__[threading.currentThread()][attr]
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except KeyError:
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raise AttributeError(attr)
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def __setattr__(self, attr, value):
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t = threading.currentThread()
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try:
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d = self.__thread_dict__[t]
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except KeyError:
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d = self.__thread_dict__[t] = {}
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d[attr] = value
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try:
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local = threading.local
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except AttributeError:
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local = _local
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