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CHANGELOG.md

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0.8.8

Fixed

0.8.7

Added

  • Add/fix support for tvOS and watchOS, Mio should now build for tvOS and watchOS, but we don't have a CI setup yet (tokio-rs#1658).

Changed

  • Made the log dependency optional behind the log feature flag (enabled by default). Users that disabled Mio's default features will now not see any logging from Mio, enabling the log feature will fix that. This was done in response to the log crate increasing it's MSRV to v1.60, see rust-lang/log#552 (tokio-rs#1673).
  • Update windows-sys dependency to v0.48 (tokio-rs#1663).

Fixed

  • Fix overflow in Poll::poll when using Duration::MAX as timeout (tokio-rs#1657).

0.8.6

Added

  • Interest::PRIORITY on Linux and Android, to trigger Event::is_priority (tokio-rs#1647).

Changed

Fixed

  • A number of potential fd leaks when setup resulted in an error right after creation (tokio-rs#1636).
  • Less truncating for timeout values in Poll::poll (tokio-rs#1642).

0.8.5

Changed

  • Updated windows-sys to 0.42.0 (tokio-rs#1624).
  • Officially document Wine as not supported, some people claimed it worked, other claims it doesn't, but nobody stepped up to fix the problem (tokio-rs#1596).
  • Switch to GitHub Actions (tokio-rs#1598, tokio-rs#1601).
  • Documented the current Poll::poll time behaviour (tokio-rs#1603).

Fixed

0.8.4

Added

  • Support Registery::try_clone on wasm32-wasi (tokio-rs#1576).
  • Add docs about polling without registering event sources (tokio-rs#1585).

0.8.3

Changed

Fixed

  • Improved support for Redox, making it possible to run on stable Rust (tokio-rs#1555).
  • Don't ignore EAGAIN in UDS connect call (tokio-rs#1564).
  • Documentation of TcpStream::connect (tokio-rs#1565).

0.8.2

Added

  • Experimental support for Redox.

0.8.1

Added

  • Add try_io method to all I/O types (#1551). This execute a user defined I/O closure while updating Mio's internal state ensuring that the I/O type receives more events if it hits a WouldBlock error. This is added to the following types:
    • TcpStream
    • UdpSocket
    • UnixDatagram
    • UnixStream
    • unix::pipe::Sender
    • unix::pipe::Receiver
  • Basic, experimental support for wasm32-wasi target (#1549). Note that a lot of time type are still missing, e.g. the Waker, and may never be possible to implement.

0.8.0

Removed

Changes

Added

0.7.14

Fixes

  • Remove use unsound internal macro (#1519).

Added

  • sys::unix::SocketAddr::as_abstract_namespace() (#1520).

0.7.13

Fixes

0.7.12 (yanked)

Fixes

0.7.11

Fixes

0.7.10

Fixes

0.7.9

Fixes

0.7.8

Fixes

0.7.7

Added

Fixes

0.7.6

Added

Deprecated

Fixes

0.7.5

Added

0.7.4

Fixes

Added

0.7.3

Added

0.7.2

Added

0.7.1

Reduced support for 32-bit Apple targets

In January 2020 Rust reduced its support for 32-bit Apple targets (https://blog.rust-lang.org/2020/01/03/reducing-support-for-32-bit-apple-targets.html). Starting with v0.7.1 Mio will do the same as we're no longer checking 32 bit iOS/macOS on our CI.

Added

Fixed

Changed

Removed

0.7.0

Version 0.7 of Mio contains various major changes compared to version 0.6. Overall a large number of API changes have been made to reduce the complexity of the implementation and remove overhead where possible.

Please refer to the blog post about 0.7-alpha.1 for additional information.

Added

  • Interest structure that replaces Ready in registering event sources.
  • Registry structure that separates the registering and polling functionality.
  • Waker structure that allows another thread to wake a thread polling Poll.
  • Unix Domain Socket (UDS) types: UnixDatagram, UnixListener and UnixStream.

Removed

  • All code deprecated in 0.6 was removed in 0.7.
  • Support for Fuchsia was removed as the code was unmaintained.
  • Support for Bitrig was removed, rustc dropped support for it also.
  • UnixReady was merged into Ready.
  • Custom user-space readiness queue was removed, this includes the public Registration and SetReadiness types.
  • PollOpt was removed and all registrations use edge-triggers. See the upgrade guide on how to process event using edge-triggers.
  • The network types (types in the net module) now support only the same API as found in the standard library, various methods on the types were removed.
  • TcpStream now supports vectored I/O.
  • Poll::poll_interruptible was removed. Instead Poll::poll will now return an error if one occurs.
  • From<usize> is removed from Token, the internal field is still public, so Token(my_token) can still be used.

Changed

  • Various documentation improvements were made around correct usage of Poll and registered event sources. It is recommended to reread the documentation of at least event::Source and Poll.
  • Mio now uses Rust 2018 and rustfmt for all code.
  • Event was changed to be a wrapper around the OS event. This means it can be significantly larger on some OSes.
  • Ready was removed and replaced with various is_* methods on Event. For example instead checking for readable readiness using Event::ready().is_readable(), you would call Event::is_readable().
  • Ready::is_hup was removed in favour of Event::is_read_closed and Event::is_write_closed.
  • The Iterator implementation of Events was changed to return &Event.
  • Evented was renamed to event::Source and now takes mutable reference to the source.
  • Minimum supported Rust version was increased to 1.39.
  • By default Mio now uses a shim implementation. To enable the full implementation, that uses the OS, enable the os-oll feature. To enable the network types use tcp, udp and/or uds. For more documentation on the features see the feature module in the API documentation (requires the extra-docs feature).
  • The entire Windows implementation was rewritten.
  • Various optimisation were made to reduce the number of system calls in creating and using sockets, e.g. making use of accept4(2).
  • The fmt::Debug implementation of Events is now actually useful as it prints all Events.

0.6.23 (Dec 01, 2020)

Changed

Fixed

0.6.22 (May 01, 2020)

Added

  • Add support for illumos target (#1294)

0.6.21 (November 27, 2019)

Fixed

  • remove = dependency on cfg-if.

0.6.20 (November 21, 2019)

Fixed

  • Use default IOCP concurrency value (#1161).
  • setting FD_CLOEXEC in pipe (#1095).

0.6.19 (May 28, 2018)

Fixed

  • Do not trigger HUP events on kqueue platforms (#958).

0.6.18 (May 24, 2018)

Fixed

  • Fix compilation on kqueue platforms with 32bit C long (#948).

0.6.17 (May 15, 2018)

Fixed

  • Don't report RDHUP as HUP (#939)
  • Fix lazycell related compilation issues.
  • Fix EPOLLPRI conflicting with READABLE
  • Abort process on ref count overflows

Added

  • Define PRI on all targets

0.6.16 (September 5, 2018)

  • Add EPOLLPRI readiness to UnixReady on supported platforms (#867)
  • Reduce spurious awaken calls (#875)

0.6.15 (July 3, 2018)

  • Implement Evented for containers (#840).
  • Fix android-aarch64 build (#850).

0.6.14 (March 8, 2018)

  • Add Poll::poll_interruptible (#811)
  • Add Ready::all and usize conversions (#825)

0.6.13 (February 5, 2018)

  • Fix build on DragonFlyBSD.
  • Add TcpListener::from_std that does not require the socket addr.
  • Deprecate TcpListener::from_listener in favor of from_std.

0.6.12 (January 5, 2018)

  • Add TcpStream::peek function (#773).
  • Raise minimum Rust version to 1.18.0.
  • Poll: retry select() when interrupted by a signal (#742).
  • Deprecate Events index access (#713).
  • Add Events::clear (#782).
  • Add support for lio_listio (#780).

0.6.11 (October 25, 2017)

  • Allow register to take empty interest (#640).
  • Fix bug with TCP errors on windows (#725).
  • Add TcpListener::accept_std (#733).
  • Update IoVec to fix soundness bug -- includes behavior change. (#747).
  • Minimum Rust version is now 1.14.0.
  • Fix Android x86_64 build.
  • Misc API & doc polish.

0.6.10 (July 27, 2017)

  • Experimental support for Fuchsia
  • Add only_v6 option for UDP sockets
  • Fix build on NetBSD
  • Minimum Rust version is now 1.13.0
  • Assignment operators (e.g. |=) are now implemented for Ready

0.6.9 (June 7, 2017)

  • More socket options are exposed through the TCP types, brought in through the net2 crate.

0.6.8 (May 26, 2017)

  • Support Fuchia
  • POSIX AIO support
  • Fix memory leak caused by Register::new2
  • Windows: fix handling failed TCP connections
  • Fix build on aarch64-linux-android
  • Fix usage of O_CLOEXEC with SETFL

0.6.7 (April 27, 2017)

  • Ignore EPIPE coming out of kevent
  • Timer thread should exit when timer is dropped.

0.6.6 (March 22, 2017)

  • Add send(), recv() and connect() to UDPSocket.
  • Fix bug in custom readiness queue
  • Move net types into net module

0.6.5 (March 14, 2017)

  • Misc improvements to kqueue bindings
  • Add official support for iOS, Android, BSD
  • Reimplement custom readiness queue
  • Poll is now Sync
  • Officially deprecate non-core functionality (timers, channel, etc...)
  • Registration now implements Evented
  • Fix bug around error conditions with connect on windows.
  • Use iovec crate for scatter / gather operations
  • Only support readable and writable readiness on all platforms
  • Expose additional readiness in a platform specific capacity

0.6.4 (January 24, 2017)

  • Fix compilation on musl
  • Add TcpStream::from_stream which converts a std TCP stream to Mio.

0.6.3 (January 22, 2017)

  • Implement readv/writev for TcpStream, allowing vectored reads/writes to work across platforms
  • Remove nix dependency
  • Implement Display and Error for some channel error types.
  • Optimize TCP on Windows through SetFileCompletionNotificationModes

0.6.2 (December 18, 2016)

  • Allow registration of custom handles on Windows (like EventedFd on Unix)
  • Send only one byte for the awakener on Unix instead of four
  • Fix a bug in the timer implementation which caused an infinite loop

0.6.1 (October 30, 2016)

  • Update dependency of libc to 0.2.16
  • Fix channel dec logic
  • Fix a timer bug around timeout cancellation
  • Don't allocate buffers for TCP reads on Windows
  • Touched up documentation in a few places
  • Fix an infinite looping timer thread on OSX
  • Fix compile on 32-bit OSX
  • Fix compile on FreeBSD

0.6.0 (September 2, 2016)

  • Shift primary API towards Poll
  • EventLoop and types to deprecated mod. All contents of the deprecated mod will be removed by Mio 1.0.
  • Increase minimum supported Rust version to 1.9.0
  • Deprecate unix domain socket implementation in favor of using a version external to Mio. For example: https://github.com/alexcrichton/mio-uds.
  • Remove various types now included in std
  • Updated TCP & UDP APIs to match the versions in std
  • Enable implementing Evented for any type via Registration
  • Rename IoEvent -> Event
  • Access Event data via functions vs. public fields.
  • Expose Events as a public type that is passed into Poll
  • Use std::time::Duration for all APIs that require a time duration.
  • Polled events are now retrieved via Events type.
  • Implement std::error::Error for TimerError
  • Relax Send bound on notify messages.
  • Remove Clone impl for Timeout (future proof)
  • Remove mio::prelude
  • Remove mio::util
  • Remove dependency on bytes

0.5.0 (December 3, 2015)

  • Windows support (#239)
  • NetBSD support (#306)
  • Android support (#295)
  • Don't re-export bytes types
  • Renamed 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)
  • Integrate with net2. (#262)
  • TcpListener now returns the remote peer address from accept as well (#275)
  • The 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)
  • Fix bug with kqueue where an error on registration prevented the changelist from getting flushed (#276)
  • Support sending/receiving FDs over UNIX sockets (#291)
  • Mio's socket types are permanently associated with an EventLoop (#308)
  • Reduce unnecessary poll wakeups (#314)

0.4.1 (July 21, 2015)

  • [BUGFIX] Fix notify channel concurrency bug (#216)

0.4.0 (July 16, 2015)

  • [BUGFIX] EventLoop::register requests all events, not just readable.
  • [BUGFIX] Attempting to send a message to a shutdown event loop fails correctly.
  • [FEATURE] Expose TCP shutdown
  • [IMPROVEMENT] Coalesce readable & writable into ready event (#184)
  • [IMPROVEMENT] Rename TryRead & TryWrite function names to avoid conflict with std.
  • [IMPROVEMENT] Provide TCP and UDP types in Mio (path to windows #155)
  • [IMPROVEMENT] Use clock_ticks crate instead of time (path to windows #155)
  • [IMPROVEMENT] Move unix specific features into mio::unix module
  • [IMPROVEMENT] TcpListener sets SO_REUSEADDR by default