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crates.io · #51 most downloaded on crates.io
Lightweight non-blocking I/O.
Last release 27 days ago
02 Sep 2026
Ships fairly regularly
a new release about every 2 months
Nearly every release is documented
notes for 55 of the last 60 stable releases
8 versions withdrawn
withdrawn after publishing
12 years old
80 releases · first in 2014
Allow registration of custom handles on Windows (like EventedFd on Unix)
EventedFd on Unix)Update dependency of libc to 0.2.16
libc to 0.2.16dec logicOne column per quarter.
EventLoop and types to deprecated mod. All contents of the deprecated mod will be removed by Mio 1.0.
PollEventLoop and types to deprecated mod. All contents of the
deprecated mod will be removed by Mio 1.0.stdstdEvented for any type via RegistrationIoEvent -> EventEvent data via functions vs. public fields.Events as a public type that is passed into Pollstd::time::Duration for all APIs that require a time duration.Events type.std::error::Error for TimerErrorSend bound on notify messages.Clone impl for Timeout (future proof)mio::preludemio::utilNothing published for this version
Renamed EventLoop::register_opt to EventLoop::register
EventLoop::register_opt to EventLoop::register (#257)EventLoopConfig is now a builder instead of having public struct fields. It
is also no longer Copy. (#259)TcpSocket is no longer exported in the public API (#262)TcpListener now returns the remote peer address from accept as well (#275)UdpSocket::{send_to, recv_from} methods are no longer generic over Buf
or MutBuf but instead take slices directly. The return types have also been
updated to return the number of bytes transferred. (#260)Nothing published for this version
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[BUGFIX] Fix notify channel concurrency bug
[BUGFIX] EventLoop::register requests all events, not just readable.
ready event (#184)Nothing published for this version
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