cabal-version:   3.4
name:            blockio
version:         0.1.1.0
synopsis:        Perform batches of disk I/O operations.
description:
  Perform batches of disk I\/O operations. Performing batches of disk I\/O can
  lead to performance improvements over performing each disk I\/O operation
  individually. Performing batches of disk I\/O /concurrently/ can lead to an
  even bigger performance improvement depending on the implementation of batched
  I\/O.

  The batched I\/O functionality in the library is separated into an /abstract/
  /interface/ and /implementations/ of that abstract interface. The advantage of
  programming against an abstract interface is that code can be agnostic to the
  implementation of the interface, allowing implementations to be freely swapped
  out. The library provides multiple implementations of batched I\/O:
  platform-dependent implementations using the /real/ file system (with
  asynchronous I\/O), and a simulated implementation for testing purposes.

  See the "System.FS.BlockIO" module for an example of how to use the library.

license:         Apache-2.0
license-files:
  LICENSE
  NOTICE

author:
  Duncan Coutts, Joris Dral, Matthias Heinzel, Wolfgang Jeltsch, Wen Kokke, and Alex Washburn

maintainer:      joris@well-typed.com
copyright:       (c) 2023-2025 Cardano Development Foundation
category:        System
build-type:      Simple
extra-doc-files:
  CHANGELOG.md
  README.md

tested-with:     GHC ==9.2 || ==9.4 || ==9.6 || ==9.8 || ==9.10 || ==9.12

source-repository head
  type:     git
  location: https://github.com/IntersectMBO/lsm-tree
  subdir:   blockio

source-repository this
  type:     git
  location: https://github.com/IntersectMBO/lsm-tree
  subdir:   blockio
  tag:      blockio-0.1.1.0

common warnings
  ghc-options:
    -Wall -Wcompat -Wincomplete-uni-patterns
    -Wincomplete-record-updates -Wpartial-fields -Widentities
    -Wredundant-constraints -Wmissing-export-lists
    -Wno-unticked-promoted-constructors -Wunused-packages

  ghc-options: -Werror=missing-deriving-strategies

common language
  default-language:   GHC2021
  default-extensions:
    DeriveAnyClass
    DerivingStrategies
    DerivingVia
    LambdaCase

flag serialblockio
  description: Use serial HasBlockIO regardless of the operating system
  default:     False
  manual:      True

library
  import:          language, warnings
  hs-source-dirs:  src
  exposed-modules:
    System.FS.BlockIO
    System.FS.BlockIO.API
    System.FS.BlockIO.IO
    System.FS.BlockIO.Serial.Internal

  other-modules:
    System.FS.BlockIO.IO.Internal
    System.FS.BlockIO.Serial

  build-depends:
    , base        >=4.16  && <4.22
    , deepseq     ^>=1.4  || ^>=1.5
    , fs-api      ^>=0.4
    , io-classes  ^>=1.6  || ^>=1.7 || ^>=1.8.0.1
    , primitive   ^>=0.9
    , vector      ^>=0.13

  if os(linux)
    hs-source-dirs: src-linux
    build-depends:  unix ^>=2.8.6
    other-modules:
      System.FS.BlockIO.Internal
      System.FS.BlockIO.Internal.Fcntl

    if !flag(serialblockio)
      other-modules: System.FS.BlockIO.Async
      build-depends: blockio-uring ^>=0.1

  elif os(osx)
    hs-source-dirs: src-macos
    build-depends:  unix ^>=2.8.6
    other-modules:
      System.FS.BlockIO.Internal
      System.FS.BlockIO.Internal.Fcntl

  elif os(windows)
    hs-source-dirs: src-windows
    build-depends:  Win32 ^>=2.14
    other-modules:  System.FS.BlockIO.Internal

  if flag(serialblockio)
    cpp-options: -DSERIALBLOCKIO

test-suite test
  import:         language, warnings
  type:           exitcode-stdio-1.0
  hs-source-dirs: test
  main-is:        Main.hs
  build-depends:
    , async
    , base              <5
    , blockio
    , bytestring
    , fs-api
    , primitive
    , QuickCheck        >=2.15.0.1
    , tasty
    , tasty-hunit
    , tasty-quickcheck
    , temporary
    , vector

  ghc-options:    -threaded

library sim
  import:          language, warnings
  visibility:      public
  hs-source-dirs:  src-sim
  exposed-modules: System.FS.BlockIO.Sim
  build-depends:
    , base                   >=4.16  && <4.22
    , blockio
    , bytestring             ^>=0.11 || ^>=0.12
    , fs-api                 ^>=0.4
    , fs-sim                 ^>=0.4
    , io-classes             ^>=1.6  || ^>=1.7  || ^>=1.8.0.1
    , io-classes:strict-stm
    , primitive              ^>=0.9

test-suite test-sim
  import:         language, warnings
  type:           exitcode-stdio-1.0
  hs-source-dirs: test-sim
  main-is:        Main.hs
  build-depends:
    , base                   <5
    , blockio
    , blockio:sim
    , fs-api
    , fs-sim
    , io-classes:strict-stm
    , QuickCheck
    , tasty
    , tasty-quickcheck