poll_wasip1: ignore entries with no events requested#630
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pchickey merged 1 commit intoWebAssembly:mainfrom Nov 5, 2025
Merged
poll_wasip1: ignore entries with no events requested#630pchickey merged 1 commit intoWebAssembly:mainfrom
pchickey merged 1 commit intoWebAssembly:mainfrom
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OpenSSH allocates a pollfd structure for all of its channels, but doesn't request events for all of them all the time. If it wants to check a subset, it clears events, but keeps nfds at the max. This causes the wasip1 implementation to incorrectly abort as it assumes that if POLLRDNORM & POLLWRNORM didn't match, it must be due to requesting unsupported events, and then it errors out with ENOSYS. Simply ignore the case where no events are requested and it all works fine.
yamt
approved these changes
Oct 1, 2025
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is there anything else needed before merging ? kind of sucks missing another wasi-sdk release. |
pchickey
approved these changes
Nov 5, 2025
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thx bud |
alexcrichton
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OpenSSH allocates a pollfd structure for all of its channels, but doesn't request events for all of them all the time. If it wants to check a subset, it clears events, but keeps nfds at the max. This causes the wasip1 implementation to incorrectly abort as it assumes that if POLLRDNORM & POLLWRNORM didn't match, it must be due to requesting unsupported events, and then it errors out with ENOSYS. Simply ignore the case where no events are requested and it all works fine.