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33 lines
745 B
Python
33 lines
745 B
Python
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#!/usr/bin/python
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#
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# Copyright 2014 Cumulus Networks, Inc. All rights reserved.
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# Author: Roopa Prabhu, roopa@cumulusnetworks.com
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#
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# utils --
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# helper class
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#
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import os
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import fcntl
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class utils():
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@classmethod
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def importName(cls, modulename, name):
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""" Import a named object """
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try:
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module = __import__(modulename, globals(), locals(), [name])
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except ImportError:
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return None
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return getattr(module, name)
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@classmethod
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def lockFile(cls, lockfile):
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try:
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fp = os.open(lockfile, os.O_CREAT | os.O_TRUNC | os.O_WRONLY)
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fcntl.flock(fp, fcntl.LOCK_EX | fcntl.LOCK_NB)
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except IOError:
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return False
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return True
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