Cleanup empty event behavior
@@ -263,18 +263,9 @@ pub(crate) fn poll_oneoff(
if fd_events.is_empty() {
match timeout {
Some((event, dur)) => return Ok(handle_timeout(event, dur, events)),
- // `poll` invoked with nfds = 0, timeout = -1 appears to be an infinite sleep on Unix
- // usually meant to be interrupted by a signal. Unfortunately, WASI doesn't currently
- // support signals and there is no way to interrupt this infinite sleep, so we
- // intend to return `ENOTSUP`.
- //
- // Unfortunately, current implementation of poll_oneoff on Unix relies on
- // `poll_oneoff` returning `Ok(())` in such case, so we emulate this behavior for now
- // and will address it in a subsequent PR.
- None => {
- // error!("poll_oneoff: invoking with neither timeout nor fds not supported");
- return Ok(()); // Err(Error::ENOTSUP);
- }
+ // The implementation has to return Ok(()) in this case,
+ // cf. the comment in src/hostcalls_impl/misc.rs
+ None => return Ok(()),
}
}
