This is a Rust crate inspired by the famous wepoll library. It provides similar FFI, but not ABI-compatible.

Previously I tried to add ProcessSocketNotifications backend for polling, but it doesn't fit that crate well.

The crate is no-std by default to reduce the binary size. All APIs are panic-free.

Unlike wepoll, ProcessSocketNotifications is used in this library. It behaves a little different from epoll in Linux.

wepoll2 supports event objects with NtAssociateWaitCompletionPacket API series. No thread pool involved, and one-shot trigger only.

epoll_pwait and epoll_pwait2 is implemented for alertable waiting and timespec support.

• ProcessSocketNotifications is a very new API.
• The edge trigger behaves a little different.
• One socket could be only associated to one IOCP.
• Not all EPOLL* flags are supported.

• Sockets don't work on i686 target. Still investigating.
• epoll_wait series API may wait for a shorter time than specified. Maybe bugs of Windows API.