v0.5.0

Changes

• Modified futures::sink::Sink implementations to return the item on error (SendError<T>) #45
• Added watch::Sender::subscribe which returns a Receiver #46

Documentation

• Add examples covering all channels, and use in async_std/futures/tokio. #48
• Update benchmarks, add some rustdoc. #53

Fixes

• A waiting oneshot receiver was not notified when the sender was dropped #44
• Use parking_lot for internal synchronization. #47

v0.4.1

• If the futures-traits feature is enabled, implementfutures::Sink and futures::Stream for senders and receivers #39
• Add cargo feature documentation to docs.rs #5

v0.4.0

Enhancements

• Add a dispatch channel. A multi-producer, multi-consumer queue #33
• Add .borrow() and .borrow_mut() to the watch sender #32
• Add .blocking_send() and .blocking_recv() to the Sink/Stream traits #31
• Remove the beta tag, as cross-platform tests have been implemented #29

Misc

• Refactor logic when channel internals return Pending, improving performance in this case #34

v0.3.3

• Readme and documentation improvements.

v0.3.2

Fixes

• Fix a concurrency bug in the barrier and mpsc channels that could occur if a channel is closed while another thread is going to return PollRecv::Pending. #18
• Significantly improve the performance of the broadcast channel by removing/minimizing locks. #18
• Strengthen static assertions on Send and Sync bounds for channel endpoints.

Tests

• Add benchmarks covering all channels #17

v0.3.1

Changes

• Improve the T: Send/Sync trait requirements in the broadcast channel #16

Fixes

• Fix the docs.rs build #16

v0.3.0

Breaking Changes

• Create a Context type (similar to std::task::Context) that contains an Option<&'a Waker>. This allows Sink::try_send and Stream::try_recv to be zero cost if the try returns pending. #9
• Move postage::Stream to postage::stream::Stream. #11
• Move postage::Sink to postage::Sink::Sink. #11

Changes

• Add the postage::prelude module with the Sink and Stream traits.
• Significantly improve documentation coverage and add several doctests. #12
• Log type names in the Stream/Sink logging combinators. The format is now: [postage::stream::stream_log] <my::Message> Message(1) #13
• Use a lock-free notifier queue. #6

Bugfixes/Tests

• Fix a bug that caused very rare 'clone monster' broadcast test failures.
• Add test coverage of the combinator APIs. #11

v0.2.2

• Completely rewrite the broadcast channel, and significantly improve test coverage.
• Test broadcast and mpsc channels at multiple channel sizes, ranging from 2 to 64.
• Add 'clone monster' tests that repeatedly clone senders and receivers, attempting to interfere with the flow of messages between an established pair.
• Fix 'blocking bugs' in the mpsc and watch channels, where occasionally both ends would return Pending and never resolve.

v0.2.1

• Fix a torrent of bugs in the broadcast channel
• Dramatically improve unit test and integration test coverage
• Add rustdocs, and more readme content.

v0.2.0

General

• Improve the SendFuture / RecvFuture design. Require Unpin, and use PhantomPin.
• Remove the Sized bound for Sink and Stream.
• Add a barrier channel, which transmits a value when the sender is dropped.
• Add tokio and async-std tests covering each channel impl
• Implement std::error::Error for all error types

Combinators

• Add logging combinators
• Fix a merge stream bug, where the receiver would block (even though the second stream had an available item).

Broadcast

• Extract a multi-producer, multi-consumer circular buffer utility, and fix many bugs with the broadcast channel
• Require Send, and add unsafe Sync impls for a few types (that are safe due to atomics + unsafecell)

Watch

• Add watch::Receiver::borrow