[Concurrency] Don't pass negative times to the Dispatch code. #81335
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Dispatch uses unsigned times, and cannot cope with times before its clock started. As such, passing negative times from Swift through to the C++ code results in large unsigned values, which then causes us to wait forever. This is undesirable. rdar://148899609
…och. Add a test to check that attempting to `Task.sleep(until:)` passing a time before the start of the Dispatch clocks works and doesn't wait forever. rdar://148899609
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Explanation: If you ask |
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@swift-ci Please test |
ktoso
approved these changes
May 7, 2025
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Dispatch uses unsigned times, and cannot cope with times before its clock started. As such, passing negative times from Swift through to the C++ code results in large unsigned values, which then causes us to wait forever. This is undesirable.
rdar://148899609