Haskell Concurrency

A Haskell library that simplifies access to remote data, such as databases or web-based services.

Dataflow programming and declarative concurrency

Run IO operations asynchronously and wait for their results

Systematic concurrency testing meets Haskell.

Systematic concurrency testing meets Haskell.

A collection of different packages for CAS based data structures.

The LVish Haskell library

A haskell library implementing fast and scalable concurrent queues for x86, with a Chan-like API

Model-view-controller

lifted IO operations from the threads library

Cached and parallel data fetching.

Concurrent PostgreSQL data consumers

Concurrency for the pipes ecosystem

OTP-like supervision trees in Haskell

STM-based channels for conduits.

Containers for STM

A work stealing scheduler

Interactive-diagrams

The library FDR3 uses for parsing, type checking and evaluating machine CSP.

Run lifted IO operations asynchronously and wait for their results

The library FDR3 uses for parsing, type checking and evaluating machine CSP.

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Async combinators

Safe, programmable, speculative evaluation for Haskell

Fork threads and wait for their result

lazy promises

Distributed, stateful, homogeneous microservice framework.

Extra utilities for STM queues

Extra concurrency primitives

A lightweight, structured concurrency library

Simple, IO-based Haskell library for Erlang-inspired thread supervisors

Concurrency features for the Haskell machines package

A fast globally unique variable supply with a pure API

Spawn threads that never die (unless told to do so)

Unbounded thread delays and timeouts

Incubator for my Haskell libraries

Sirkel; a Chord DHT in haskell. Node failure, replication and batteries included!

A principal solution to ghost threads and silent exceptions

Simple package that implements timers. Both "one-shot" and "repeating" timers are implemented.

Non-blocking concurrent hashmap for Haskell

Simple thread management

Haskell rate limiter library using lazy token bucket algorithm

Bounded channels with invalidating readers

A thread-safe hash table in Haskell

Concurrent and combinable updates

fast unique variables

File locking

A contention-free STM hash map for Haskell

Unagi-chan channels for io-streams.

A fast, cache-efficient, concurrent bloom filter in Haskell

SafeSemaphore is a Haskell library replacing non-exception safe libraries like QSem, QSemN, SampleVar

Control.Concurrent.Chan split into sending and receiving halves.

A utility for concurrent programming in Haskell, insipired by Ticker in golang.

STM-specialised Hash Array Mapped Trie

Provides access to GHC's dynamic pointer tag bits

Loop over an action but throttle it to a certain rate

Generalized sleep and timeout functions

Go-style channels for Haskell (WIP)

Can we realize Rust's ownership model as a monad in Haskell?

A Haskell library providing an idiomatic implementation of the actor model of concurrency

A monadic interface for async

Bounded (limited capacity) channels for Haskell

A very simple interface for incremental computation using STM in Haskell.

A simplified implementation of Erlang/OTP like supervisor for GHC thread

Allows timeouting a computation while allowing it to return partial results. Useful for making AI-like algorithms that should return the best result found within a time limit.

A tiny Haskell library for concurrent computations

Concurrently + Either

Periodic timers based on async API.

Baisc, Erlang-like message passing for Haskell.

A simple round-robin data type

A simple implementation of a multiple-reader / single-writer locks using STM

Limit number of IO actions started per second

A message passing concurrency extensible-effect

Extra utilities for async

Updatable timeouts as a Monad transformer

set a maximum on the number of concurrent actions

Throttler between a producer and a consumer function

Thread delay and timeout functions with typed arguments

DEPRECATED - Stream data to and from subprocesses using Pipes

Minimalistic actor library for Haskell

Practical actors for Haskell.

Implicit monadic dataflow parallelism

Simple package that allows for long thread suspensions. Uses newtype wrapper (of Int64 at the moment) to represent delay.

Haskell: Synchronize multiple actions to be triggered as parallel as possible

Heartbeats for io-streams

Hactor is a rewrite of thespian, a library which aims to provide lightweight Erlang-style actors for Haskell.

Transactional I/O for duplex streams

Simple and fast implementation of Future

Bundles shared calls to IO functions to perform them only once

simple and general quantity semaphores in ghc haskell

Simple Haskel thread management in hierarchical manner

A named lock that is created on demand.

utility for collapsing adjacent writes

A distributed computation monad transformer

Haskell: Various concurrent combinators

Build a Queue-Processing Worker Pool using Immortal

Simple concurrency barriers

Output from parallel subprocesses is an ugly, many-headed beast. Piping though hydra-print provides a NCurses interface to a dynamic set output streams, displayed without interleaving.

Implementation of skip variables (a special case of skip channels)

Thread communication queues that group items/requests that occur close together in time