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121 lines
4.6 KiB
Plaintext
Executable File
121 lines
4.6 KiB
Plaintext
Executable File
-- Initial monad-conc.cabal generated by cabal init. For further
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-- documentation, see http://haskell.org/cabal/users-guide/
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name: concurrency
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version: 1.1.1.0
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synopsis: Typeclasses, functions, and data types for concurrency and STM.
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description:
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A typeclass abstraction over much of Control.Concurrent (and some
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extras!). If you're looking for a general introduction to Haskell
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concurrency, you should check out the excellent Parallel and
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Concurrent Programming in Haskell, by Simon Marlow. If you are
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already familiar with concurrent Haskell, just change all the
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imports from Control.Concurrent.* to Control.Concurrent.Classy.* and
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fix the type errors.
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.
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A brief list of supported functionality:
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.
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* Threads: the @forkIO*@ and @forkOn*@ functions, although bound
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threads are not supported.
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.
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* Getting and setting capablities.
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.
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* Yielding and delaying.
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.
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* Mutable state: STM, @MVar@, and @IORef@.
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.
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* Atomic compare-and-swap for @IORef@.
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.
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* Exceptions.
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.
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* All of the data structures in Control.Concurrent.* and
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Control.Concurrent.STM.* have typeclass-abstracted equivalents.
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.
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* A reimplementation of the
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<https://hackage.haskell.org/package/async async> package,
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providing a higher-level interface over threads, allowing users to
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conveniently run @MonadConc@ operations asynchronously and wait
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for their results.
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.
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This is quite a rich set of functionality, although it is not
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complete. If there is something else you need, file an issue!
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.
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This used to be part of dejafu, but with the dejafu-0.4.0.0 release,
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it was split out into its own package.
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.
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== Why this and not something else?
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.
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* Why not base: like lifted-base, concurrency uses typeclasses to
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make function types more generic. This automatically eliminates
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calls to `lift` in many cases, resulting in clearer and simpler
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code.
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.
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* Why not lifted-base: fundamentally, lifted-base is still using
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actual threads and actual mutable variables. When using a
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concurrency-specific typeclass, this isn't necessarily the case.
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The dejafu library provides non-IO-based implementations to allow
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testing concurrent programs.
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.
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* Why not IOSpec: IOSpec provides many of the operations this
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library does, however it uses a free monad to do so, which has
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extra allocation overhead. Furthermore, it does not expose enough
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of the internals in order to accurately test real-execution
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semantics, such as relaxed memory.
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.
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See the <https://github.com/barrucadu/dejafu README> for more
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details.
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homepage: https://github.com/barrucadu/dejafu
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license: MIT
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license-file: LICENSE
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author: Michael Walker
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maintainer: mike@barrucadu.co.uk
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-- copyright:
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category: Concurrency
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build-type: Simple
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-- extra-source-files:
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cabal-version: >=1.10
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source-repository head
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type: git
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location: https://github.com/barrucadu/dejafu.git
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source-repository this
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type: git
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location: https://github.com/barrucadu/dejafu.git
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tag: concurrency-1.1.1.0
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library
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exposed-modules: Control.Monad.Conc.Class
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, Control.Monad.STM.Class
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, Control.Concurrent.Classy
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, Control.Concurrent.Classy.Async
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, Control.Concurrent.Classy.Chan
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, Control.Concurrent.Classy.CRef
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, Control.Concurrent.Classy.MVar
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, Control.Concurrent.Classy.QSem
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, Control.Concurrent.Classy.QSemN
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, Control.Concurrent.Classy.STM
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, Control.Concurrent.Classy.STM.TVar
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, Control.Concurrent.Classy.STM.TMVar
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, Control.Concurrent.Classy.STM.TChan
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, Control.Concurrent.Classy.STM.TQueue
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, Control.Concurrent.Classy.STM.TBQueue
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, Control.Concurrent.Classy.STM.TArray
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-- other-modules:
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-- other-extensions:
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build-depends: base >=4.8 && <5
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, array >=0.5 && <0.6
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, atomic-primops >=0.8 && <0.9
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, exceptions >=0.7 && <0.9
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, monad-control >=1.0 && <1.1
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, mtl >=2.2 && <2.3
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, stm >=2.4 && <2.5
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, transformers >=0.4 && <0.6
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-- hs-source-dirs:
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default-language: Haskell2010
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ghc-options: -Wall
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