tokio-signal

Fixes

• AsyncSeek impl for File (#1986).
• rt: shutdown deadlock in threaded_scheduler (#2074, #2082).
• rt: memory ordering when dropping JoinHandle (#2044).
• docs: misc API documentation fixes and improvements.

Fixes

• depend on new version of tokio-macros.

Fixes

• potential deadlock when dropping basic_scheduler Runtime.
• calling spawn_blocking from within a spawn_blocking (#2006).
• storing a Runtime instance in a thread-local (#2011).
• miscellaneous documentation fixes.
• rt: fix Waker::will_wake to return true when tasks match (#2045).
• test-util: time::advance runs pending tasks before changing the time (#2059).

Added

• net::lookup_host maps a T: ToSocketAddrs to a stream of SocketAddrs (#1870).
• process::Child fields are made public to match std (#2014).
• impl Stream for sync::broadcast::Receiver (#2012).
• sync::RwLock provides an asynchronous read-write lock (#1699).
• runtime::Handle::current returns the handle for the current runtime (#2040).
• StreamExt::filter filters stream values according to a predicate (#2001).
• StreamExt::filter_map simultaneously filter and map stream values (#2001).
• StreamExt::try_next convenience for streams of Result<T, E> (#2005).
• StreamExt::take limits a stream to a specified number of values (#2025).
• StreamExt::take_while limits a stream based on a predicate (#2029).
• StreamExt::all tests if every element of the stream matches a predicate (#2035).
• StreamExt::any tests if any element of the stream matches a predicate (#2034).
• task::LocalSet.await runs spawned tasks until the set is idle (#1971).
• time::DelayQueue::len returns the number entries in the queue (#1755).
• expose runtime options from the #[tokio::main] and #[tokio::test] (#2022).

Changed

• unix::Signal now implements Sync
• minimize allocations

Fixes

• unix::Signal now avoids extraneous wakeups generated as a result of dropping other instances

Fixes

• fs::File::seek API regression (#1991).

Changed

• Use the signal-hook crate for managing signal registrations

Added

• io::AsyncSeek trait (#1924).
• Mutex::try_lock (#1939)
• mpsc::Receiver::try_recv and mpsc::UnboundedReceiver::try_recv (#1939).
• writev support for TcpStream (#1956).
• time::throttle for throttling streams (#1949).
• implement Stream for time::DelayQueue (#1975).
• sync::broadcast provides a fan-out channel (#1943).
• sync::Semaphore provides an async semaphore (#1973).
• stream::StreamExt provides stream utilities (#1962).

Fixes

• deadlock risk while shutting down the runtime (#1972).
• panic while shutting down the runtime (#1978).
• sync::MutexGuard debug output (#1961).
• misc doc improvements (#1933, #1934, #1940, #1942).

Changes

• runtime threads are configured with runtime::Builder::core_threads and runtime::Builder::max_threads. runtime::Builder::num_threads is deprecated (#1977).

Fixes

• Fix a possible starvation when polling multiple Signal instances outside of a tokio reactor (e.g. by using Future::wait)

Fixes

• sync::Mutex deadlock when lock() future is dropped early (#1898).

Fixes

• Actually make unix::bsd public

Added

• read / write integers using AsyncReadExt and AsyncWriteExt (#1863).
• read_buf / write_buf for reading / writing Buf / BufMut (#1881).
• TcpStream::poll_peek - pollable API for performing TCP peek (#1864).
• sync::oneshot::error::TryRecvError provides variants to detect the error kind (#1874).
• LocalSet::block_on accepts !'static task (#1882).
• task::JoinError is now Sync (#1888).
• impl conversions between tokio::time::Instant and std::time::Instant (#1904).

Fixes

• calling spawn_blocking after runtime shutdown (#1875).
• LocalSet drop infinite loop (#1892).
• LocalSet hang under load (#1905).
• improved documentation (#1865, #1866, #1868, #1874, #1876, #1911).

Features

• Exposes SIGINFO on BSD-based operating systems.

Fixes

• scheduling with basic_scheduler (#1861).
• update spawn panic message to specify that a task scheduler is required (#1839).
• API docs example for runtime::Builder to include a task scheduler (#1841).
• general documentation (#1834).
• building on illumos/solaris (#1772).
• panic when dropping LocalSet (#1843).
• API docs mention the required Cargo features for Builder::{basic, threaded}_scheduler (#1858).

Added

• impl Stream for signal::unix::Signal (#1849).
• API docs for platform specific behavior of signal::ctrl_c and signal::unix::Signal (#1854).
• API docs for signal::unix::Signal::{recv, poll_recv} and signal::windows::CtrlBreak::{recv, poll_recv} (#1854).
• File::into_std and File::try_into_std methods (#1856).

Fixes

• Fix starvation of Signals whenever a Signal instance is dropped
• Fix starvation of individual Signals based on their creation order

Fixes

• API docs for TcpListener::incoming, UnixListener::incoming (#1831).

Added

• tokio::task::LocalSet provides a strategy for spawning !Send tasks (#1733).
• export tokio::time::Elapsed (#1826).
• impl AsRawFd, AsRawHandle for tokio::fs::File (#1827).

Fixes

• Bump minimum supported version of mio to 0.6.14

A major breaking change. Most implementation and APIs have changed one way or another. This changelog entry contains a highlight

Changed

• APIs are updated to use async / await.
• most tokio-* crates are collapsed into this crate.
• Scheduler is rewritten.
• tokio::spawn returns a JoinHandle.
• A single I/O / timer is used per runtime.
• I/O driver uses a concurrent slab for allocating state.
• components are made available via feature flag.
• Use bytes 0.5
• tokio::codec is moved to tokio-util.

Removed

• Standalone timer and net drivers are removed, use Runtime instead
• current_thread runtime is removed, use tokio::runtime::Runtime with basic_scheduler instead.

Features

• Uses tokio instead of tokio_core
• Supports all 33 signals on FreeBSD

• Provide timer API (#266)

• Fix build on FreeBSD (#218)
• Shutdown the Runtime when the handle is dropped (#214)
• Set Runtime thread name prefix for worker threads (#232)
• Add builder for Runtime (#234)
• Extract TCP and UDP types into separate crates (#224)
• Optionally support futures 0.2.

• Fix CurrentThread::turn to block on idle (#212).

• Introduce Tokio Runtime (#141)
• Provide CurrentThread for more flexible usage of current thread executor (#141).
• Add Lio for platforms that support it (#142).
• I/O resources now lazily bind to the reactor (#160).
• Extract Reactor to dedicated crate (#169)
• Add facade to sub crates and add prelude (#166).
• Switch TCP/UDP fns to poll_ -> Poll<...> style (#175)

• Doc fixes

• Initial crate released based on RFC.