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46 lines
1.6 KiB
Python
46 lines
1.6 KiB
Python
# -*- coding: iso-8859-1 -*-
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# Copyright (C) 2005-2009 Bastian Kleineidam
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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"""
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Locking utility class.
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"""
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import threading
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from . import log, LOG_THREAD
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def get_lock (name):
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return threading.Lock()
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# for thread debugging, use the DebugLock wrapper
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#return DebugLock(threading.Lock(), name)
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class DebugLock (object):
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"""Debugging lock class."""
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def __init__ (self, lock, name):
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self.lock = lock
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self.name = name
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def acquire (self, blocking=1):
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"""Acquire lock."""
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threadname = threading.currentThread().getName()
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log.debug(LOG_THREAD, "Acquire %s for %s", self.name, threadname)
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self.lock.acquire(blocking)
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log.debug(LOG_THREAD, "...acquired %s for %s", self.name, threadname)
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def release (self):
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"""Release lock."""
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threadname = threading.currentThread().getName()
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log.debug(LOG_THREAD, "Release %s for %s", self.name, threadname)
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self.lock.release()
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