Not sure where to ask this question because I mostly never program on Linux, so: where do the errno's go when you issue ops on an io_uring? To the naive user (me), it looks like they simple vanish, since cqe.res is documented as being simply "-1 on error". This can't be right?
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Maybe? Not quite sure, since I don't understand the misunderstanding. In this case there's no libc, really only a syscall to submit and then individual per-request error codes. Like I repeatedly told him, suggestions for improved wording always welcome. Better than hissy fits.
End of conversation
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