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...> reading from the file descriptor would block? > No, you have to call again aio_get_direction() and poll again until the event happens. Nir -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://listman.redhat.com/archives/libguestfs/attachments/20230706/b01f8b96/attachment.htm>

Hello, As part of the Rust bindings for Libnbd, I try to integrate the asynchronous (aio_*) functions with Tokio <https://docs.rs/tokio/latest/tokio/>, the most used asynchronous runtime in Rust. However, in its eventloop, Tokio uses epoll(7) instead of poll(2) (which is used internally in Libnbd). The difference is that poll(2) uses level-triggered notifications as aposed to epoll(7)