PR #168 from @maseev - unifying the approach to queue size range checks and exceptions
PR #173 #174 #176 from @neomatrix369 - porting the SPSC linked array queues to non-unsafe versions
PR #172 #175 from @chbatey - porting the MPSC linked array queues to non-unsafe versions
Fix #179 - bug in MpmcArrayQueue and MpmcAtomicArrayQueue leading to false reporting of queue full on offer which races with a poll, reported by Sharath Gururaj (I think that is @flipsha)
Further contributions:
JCStress testing support added by @victorparmar
Code tidy up by @avalanche123
Experimental support for MPSC proxy channels by @kay
Thanks everyone!
v2.0.1
7 years ago
Fixing up a couple of issues:
#143 - toString() didn't work for many of the queues because the default implemetation relied on iterators.
#151 fixed by @cliffclick and helped by @vyazelenko - bringing in some fixes and improvements to NHBM
Minor javadoc touchups
v2.0
7 years ago
PR #94 : The NonBlockingHashMap by @cliffclick is now released as part of JCTools core. Also thanks to @pcholakov for help is converting and sanity testing some of the benchmark code (PR #108).
PR #129 : MPSC linked array queues code is tidied up and split into 3 implementations. The old Chunked is here, but constructor has changed. Growable is split from chunked and Unbounded is added.
Bug #135 : Bug fix for the growable MPSC case.
PR #127 : Releasing JCTools as an OSGi bundle, thanks @CodingFabian !
v1.2.1
7 years ago
PERF: Fix GC nepotism issue in SpscUnboundedArrayQueue (Issue #95, PR #96, courtesy of @akarnokd)
PERF: Unified base implementation to SpscUnbounded/Growable (Issue #103, PR #107, courtesy of @pcholakov)
BUG: IllegalStateException during MpscChunkedArrayQueue.offer(....) (Issue #115)
BUG: new MpscChunkedArrayQueue(1024, Integer.MAX_VALUE, ...) throws confusing exception (Issue #116)
BUG: SpscGrowable/SpscUnbounded/SpscAtomic/SpscUnboundedAtomic !isEmpty() but poll() == null (Issue #119)
BUG: MpscArrayQueue.offerIfBelowTheshold is broken: offering is still possible when queue is full (Issue #120)
v1.1
8 years ago
Including:
An expanded queue API
Some new queues
Minor bug fixes
v1.2
8 years ago
Added MpscChunkedArrayQueue an MPSC bounded queue aiming to replace current usage of MpscLinkedQueue in usecases where low footprint AND low GC churn are desirable. This is acheived through usage of smaller buffers which are then linked to either bigger buffers or same sized buffers as queue size demands.
Fixed a GC nepotism issue in linked queues. This is not a bug but an observable generational GC side effect causing false promotion of linked nodes because of a reference from a promoted dead node. See discussion here: https://github.com/akka/akka/issues/19216
Fixed an inconsistently handled exception on offering null elements. This was a bug in MpmcArrayQueue.