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Viewing changes to bzrlib/lock.py

  • Committer: Aaron Bentley
  • Date: 2006-07-11 13:17:16 UTC
  • mfrom: (1850 +trunk)
  • mto: This revision was merged to the branch mainline in revision 1858.
  • Revision ID: abentley@panoramicfeedback.com-20060711131716-5ff677f3099e48b6
Merge bzr.dev

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bzrlib/lock.py
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from bzrlib.trace import mutter
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from bzrlib.errors import LockError
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class _base_Lock(object):
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    def _open(self, filename, filemode):
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        try:
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    def unlock(self):
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        raise NotImplementedError()
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############################################################
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# msvcrt locks
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                    raise LockError(e)
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        class _w32c_ReadLock(_w32c_FileLock):
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            def __init__(self, filename):
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                _w32c_FileLock._lock(self, filename, 'rb',
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                                     LOCK_EX + LOCK_NB)
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        WriteLock = _w32c_WriteLock
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        ReadLock = _w32c_ReadLock
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                    _msvc_lock(self._open(filename, 'wb'), self.LOCK_EX)
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            def _msvc_lock(f, flags):
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                try:
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                    # Unfortunately, msvcrt.LK_RLCK is equivalent to msvcrt.LK_LOCK
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                    raise LockError(e)
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            WriteLock = _msvc_WriteLock
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            ReadLock = _msvc_ReadLock
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        except ImportError: