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Asked: 2026-06-13T09:46:10+00:00

If you use kqueue(), should you set O_NONBLOCK on your file descriptors? In other

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If you use kqueue(), should you set O_NONBLOCK on your file descriptors? In other words, does kqueue() guarantee that the next I/O operation on a ready file descriptor will not block, regardless of whether O_NONBLOCK is set?

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  1. Editorial Team

    If you use kqueue(), should you set O_NONBLOCK on your file descriptors?

    Nope.

    In other words, does kqueue() guarantee that the next I/O operation on a ready file descriptor will not block, regardless of whether O_NONBLOCK is set?

    Yep.

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