Title: Potential Windows-specific lost event race in the implementation of time.sleep · Issue #135407 · python/cpython · GitHub
Open Graph Title: Potential Windows-specific lost event race in the implementation of time.sleep · Issue #135407 · python/cpython
X Title: Potential Windows-specific lost event race in the implementation of time.sleep · Issue #135407 · python/cpython
Description: Bug description: In the Windows-specific implementation of time.sleep there appears this code: cpython/Modules/timemodule.c Lines 2341 to 2345 in b706ff0 // Check for pending SIGINT signal before resetting the event if (PyErr_CheckSignal...
Open Graph Description: Bug description: In the Windows-specific implementation of time.sleep there appears this code: cpython/Modules/timemodule.c Lines 2341 to 2345 in b706ff0 // Check for pending SIGINT signal before r...
X Description: Bug description: In the Windows-specific implementation of time.sleep there appears this code: cpython/Modules/timemodule.c Lines 2341 to 2345 in b706ff0 // Check for pending SIGINT signal before r...
Opengraph URL: https://github.com/python/cpython/issues/135407
X: @github
Domain: github.com
{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Potential Windows-specific lost event race in the implementation of time.sleep","articleBody":"### Bug description:\n\nIn the Windows-specific implementation of `time.sleep` there appears this code:\n\nhttps://github.com/python/cpython/blob/b706ff003c536c5bca24dfdd3a8917bffcfa3df1/Modules/timemodule.c#L2341-L2345\n\nIf a control-C event happens after `PyErr_CheckSignals` returns, but before `ResetEvent` is called, I believe that event may be lost.\n\nThis is probably a hard race window to hit, and I don't have a Windows development environment, so I have not confirmed that it is possible.\n\n### CPython versions tested on:\n\nCPython main branch\n\n### Operating systems tested on:\n\nWindows","author":{"url":"https://github.com/zackw","@type":"Person","name":"zackw"},"datePublished":"2025-06-11T19:44:05.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/135407/cpython/issues/135407"}| route-pattern | /_view_fragments/issues/show/:user_id/:repository/:id/issue_layout(.:format) |
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| og:image:alt | Bug description: In the Windows-specific implementation of time.sleep there appears this code: cpython/Modules/timemodule.c Lines 2341 to 2345 in b706ff0 // Check for pending SIGINT signal before r... |
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