Portable interface to epoll, kqueue, event ports, and wepoll.
Supported platforms: - epoll: Linux, Android - kqueue: macOS, iOS, FreeBSD, NetBSD, OpenBSD, DragonFly BSD - event ports: illumos, Solaris - wepoll: Windows
Polling is done in oneshot mode, which means interest in I/O events needs to be reset after an event is delivered if we're interested in the next event of the same kind.
Only one thread can be waiting for I/O events at a time.
```rust,no_run use polling::{Event, Poller}; use std::net::TcpListener;
// Create a TCP listener. let socket = TcpListener::bind("127.0.0.1:8000")?; let key = 7; // arbitrary key identifying the socket
// Create a poller and register interest in readability on the socket. let poller = Poller::new()?; poller.insert(&socket)?; poller.interest(&socket, Event::readable(key))?;
// The event loop. let mut events = Vec::new(); loop { // Wait for at least one I/O event. events.clear(); poller.wait(&mut events, None)?;
for ev in &events {
if ev.key == key {
// Perform a non-blocking accept operation.
socket.accept()?;
// Set interest in the next readability event.
poller.interest(&socket, Event::readable(key))?;
}
}
} std::io::Result::Ok(()) ```
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