Revision a20e4768 lib/runtime.py
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import grp |
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import pwd |
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import threading |
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import platform |
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from ganeti import constants |
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from ganeti import errors |
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_priv = None |
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_priv_lock = threading.Lock() |
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#: Architecture information |
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_arch = None |
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def GetUid(user, _getpwnam): |
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"""Retrieve the uid from the database. |
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_priv_lock.release() |
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return _priv |
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def InitArchInfo(): |
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"""Initialize architecture information. |
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We can assume this information never changes during the lifetime of a |
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process, therefore the information can easily be cached. |
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@note: This function uses C{platform.architecture} to retrieve the Python
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binary architecture and does so by forking to run C{file} (see Python
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documentation for more information). Therefore it must not be used in a |
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multi-threaded environment. |
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""" |
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global _arch # pylint: disable=W0603 |
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if _arch is not None: |
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raise errors.ProgrammerError("Architecture information can only be"
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" initialized once") |
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_arch = (platform.architecture()[0], platform.machine()) |
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def GetArchInfo(): |
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"""Returns previsouly initialized architecture information. |
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""" |
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if _arch is None: |
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raise errors.ProgrammerError("Architecture information hasn't been"
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" initialized") |
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return _arch |
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