devel/hs-unagi-chan 0.4.1.4nb5 NetBSD

This library provides implementations of concurrent FIFO queues (for both general boxed and primitive unboxed values) that are fast, perform well under contention, and offer a Chan-like interface. The library may be of limited usefulness outside of x86 architectures where the fetch-and-add instruction is not available.

We export several variations of our design; some support additional functionality while others try for lower latency by removing features or making them more restrictive (e.g. in the Unboxed variants).

* Unagi: a general-purpose near drop-in replacement for Chan. * Unagi.Unboxed: like Unagi but specialized for primitive types; this may perform better if a queue grows very large. * Unagi.Bounded: a bounded variant with blocking and non-blocking writes, and other functionality where a notion of the queue's capacity is required. * Unagi.NoBlocking: lowest latency implementations for when blocking reads aren't required. * Unagi.NoBlocking.Unboxed: like Unagi.NoBlocking but for primitive types.