mea

chore: Release mea version 0.6.7

• Announce the upcoming asyncband rebrand.

chore: Release mea version 0.6.6

Bug fixes

• Prevent OwnedMappedMutexGuard from allowing invalid lifetime coercions. (#121)
• Require the protected value of an OwnedRwLockReadGuard to be both Send and Sync before the guard can be sent across threads. (#122)
• Prevent reentrant wakers from deadlocking or poisoning Barrier, Latch, WaitGroup, Once, and broadcast::overflow operations. (#125)
• Retry spurious atomic failures when completing Once initialization. (#126)
• Make cloning a WaitGroup panic on counter overflow instead of silently losing track of a handle. (#128)
• Align Condvar with standard non-buffered notification semantics by notifying only current waiters and passing a cancelled notify_one wakeup to another current waiter. (#132)
• Ensure polling or cancelling a contended oneshot receive does not wait for the sender to make progress. (#138)
• Clean up uninitialized OnceMap and singleflight::Group entries once no callers remain after a failure, panic, or cancellation. (#142)
• Keep a semaphore's permit count unchanged when Semaphore::release panics on overflow. (#144)

Improvements

• Remove unnecessary Clone bounds from singleflight::Group keys and custom hashers used by OnceMap and singleflight::Group. (#142)

chore: Release mea version 0.6.5

New features

• Implement admission::FairShare to provide a work-conserving admission policy for workloads partitioned by key.

chore: Release mea version 0.6.4

New features

• Implement shutdown::ShutdownWatch to wait for the shutdown signal without blocking ShutdownSend::await_shutdown.

chore: Release mea version 0.6.3

Improvements

• OnceMap no longer requires K: Clone everywhere.

chore: Release mea version 0.6.2

New features

• Implement once::OnceMap to run computation only once and store the results in a hash map.
• singleflight::Group now supports custom hashers for keys.

Improvements

• singleflight::Group::forget now accepts any &Q where Q: ?Sized + Hash + Eq and K: Borrow<Q> aligning with standard HashMap's interface.

chore: Release mea version 0.6.1

New features

• Implement singleflight pattern for deduplicating concurrent requests.

chore: Release mea version 0.6.0

Breaking changes

• All channel errors are now unified follow the same [Try](Send|Recv)Error pattern. (#98)
• broadcast::channel and the related types are moved to one level deeper module broadcast::overflow. (#99)

Improvements

• oneshot::Sender and oneshot::Receiver now always implement Debug.

chore: Release mea version 0.5.3