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36 lines
1.5 KiB
36 lines
1.5 KiB
Note: This package is **deprecated**. It is highly preferred that instead of
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using this code base that instead `fasteners`_ or `oslo.concurrency`_ is
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used instead. For any questions or comments or further help needed
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please email `openstack-dev`_ and prefix your email subject
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with ``[oslo][pylockfile]`` (for a faster response).
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The lockfile package exports a LockFile class which provides a simple API for
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locking files. Unlike the Windows msvcrt.locking function, the fcntl.lockf
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and flock functions, and the deprecated posixfile module, the API is
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identical across both Unix (including Linux and Mac) and Windows platforms.
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The lock mechanism relies on the atomic nature of the link (on Unix) and
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mkdir (on Windows) system calls. An implementation based on SQLite is also
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provided, more as a demonstration of the possibilities it provides than as
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production-quality code.
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Note: In version 0.9 the API changed in two significant ways:
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* It changed from a module defining several classes to a package containing
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several modules, each defining a single class.
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* Where classes had been named SomethingFileLock before the last two words
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have been reversed, so that class is now SomethingLockFile.
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The previous module-level definitions of LinkFileLock, MkdirFileLock and
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SQLiteFileLock will be retained until the 1.0 release.
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To install:
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python setup.py install
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* Documentation: http://docs.openstack.org/developer/pylockfile
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* Source: http://git.openstack.org/cgit/openstack/pylockfile
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* Bugs: http://bugs.launchpad.net/pylockfile
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