[New-bugs-announce] [issue32076] Expose LockFile on Windows

[Antoine Pitrou]

New submission from Antoine Pitrou <pitrou at free.fr>:

msvcrt.locking() is sometimes practically useless since its so-called "non-blocking" mode will still block for 1 second.  Instead, the Windows API LockFile() function (and its companion UnlockFile()) allows real non-blocking locking.

Right now you have to call LockFile() using ctypes (see https://github.com/mwilliamson/locket.py/pull/8/files for an example).  It would be nice to expose it somewhere, for example in msvcrt or another module.

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components: Library (Lib), Windows
messages: 306514
nosy: paul.moore, pitrou, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: Expose LockFile on Windows
type: enhancement
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32076>
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