bitbake/utils.py: Teach unlockfile about shared mode lockfiles
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -445,7 +445,13 @@ def unlockfile(lf):
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"""
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Unlock a file locked using lockfile()
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"""
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os.unlink(lf.name)
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try:
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# If we had a shared lock, we need to promote to exclusive before
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# removing the lockfile. Attempt this, ignore failures.
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fcntl.flock(lf.fileno(), fcntl.LOCK_EX|fcntl.LOCK_NB)
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os.unlink(lf.name)
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except IOError:
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pass
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fcntl.flock(lf.fileno(), fcntl.LOCK_UN)
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lf.close()
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