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diff --git a/ghc-psqueues.spec b/ghc-psqueues.spec new file mode 100644 index 0000000..2687872 --- /dev/null +++ b/ghc-psqueues.spec @@ -0,0 +1,134 @@ +%global pkg_name psqueues +%global pkgver %{pkg_name}-%{version} +%bcond_with tests + +Name: ghc-%{pkg_name} +Version: 0.2.7.3 +Release: 1 +Summary: Pure priority search queues +License: BSD-3-Clause +URL: https://hackage.haskell.org/package/%{pkg_name} +Source0: https://hackage.haskell.org/package/%{pkg_name}-%{version}/%{pkg_name}-%{version}.tar.gz +BuildRequires: ghc-Cabal-devel +BuildRequires: ghc-base-devel +BuildRequires: ghc-base-prof +BuildRequires: ghc-deepseq-devel +BuildRequires: ghc-deepseq-prof +BuildRequires: ghc-hashable-devel +BuildRequires: ghc-hashable-prof +BuildRequires: ghc-rpm-macros +ExcludeArch: %{ix86} +%if %{with tests} +BuildRequires: ghc-HUnit-devel +BuildRequires: ghc-HUnit-prof +BuildRequires: ghc-QuickCheck-devel +BuildRequires: ghc-QuickCheck-prof +BuildRequires: ghc-array-devel +BuildRequires: ghc-array-prof +BuildRequires: ghc-tagged-devel +BuildRequires: ghc-tagged-prof +BuildRequires: ghc-tasty-devel +BuildRequires: ghc-tasty-hunit-devel +BuildRequires: ghc-tasty-hunit-prof +BuildRequires: ghc-tasty-prof +BuildRequires: ghc-tasty-quickcheck-devel +BuildRequires: ghc-tasty-quickcheck-prof +%endif + +%description +The psqueues package provides <http://en.wikipedia.org/wiki/Priority_queue +Priority Search Queues> in three different flavors. + +* 'OrdPSQ k p v', which uses the 'Ord k' instance to provide fast insertion, +deletion and lookup. This implementation is based on Ralf Hinze's +<http://citeseer.ist.psu.edu/hinze01simple.html A Simple Implementation +Technique for Priority Search Queues>. Hence, it is similar to the +<http://hackage.haskell.org/package/PSQueue PSQueue> library, although it is +considerably faster and provides a slightly different API. + +* 'IntPSQ p v' is a far more efficient implementation. It fixes the key type to +'Int' and uses a <http://en.wikipedia.org/wiki/Radix_tree radix tree> (like +'IntMap') with an additional min-heap property. + +* 'HashPSQ k p v' is a fairly straightforward extension of 'IntPSQ': it simply +uses the keys' hashes as indices in the 'IntPSQ'. If there are any hash +collisions, it uses an 'OrdPSQ' to resolve those. The performance of this +implementation is comparable to that of 'IntPSQ', but it is more widely +applicable since the keys are not restricted to 'Int', but rather to any +'Hashable' datatype. + +Each of the three implementations provides the same API, so they can be used +interchangeably. The benchmarks show how they perform relative to one another, +and also compared to the other Priority Search Queue implementations on +Hackage: <http://hackage.haskell.org/package/PSQueue PSQueue> and +<http://hackage.haskell.org/package/fingertree-psqueue fingertree-psqueue>. + +<<http://i.imgur.com/KmbDKR6.png>> + +<<http://i.imgur.com/ClT181D.png>> + +Typical applications of Priority Search Queues include: + +* Caches, and more specifically LRU Caches; + +* Schedulers; + +* Pathfinding algorithms, such as Dijkstra's and A*. + +%package devel +Summary: Haskell %{pkg_name} library development files +Requires: %{name} = %{version}-%{release} +Requires: ghc-compiler = %{ghc_version} +Requires(post): ghc-compiler = %{ghc_version} +Requires(postun): ghc-compiler = %{ghc_version} + +%description devel +This package provides the Haskell %{pkg_name} library development files. + +%package -n ghc-%{pkg_name}-help +Summary: Haskell %{pkg_name} library documentation +BuildArch: noarch + +%description -n ghc-%{pkg_name}-help +This package provides the Haskell %{pkg_name} library documentation. + +%package -n ghc-%{pkg_name}-prof +Summary: Haskell %{pkg_name} profiling library +Requires: ghc-%{pkg_name}-devel = %{version}-%{release} +Supplements: (ghc-%{pkg_name}-devel and ghc-prof) + +%description -n ghc-%{pkg_name}-prof +This package provides the Haskell %{pkg_name} profiling library. + +%prep +%autosetup -n %{pkg_name}-%{version} + +%build +%ghc_lib_build + +%install +%ghc_lib_install + +%check +%cabal_test + +%post devel +%ghc_pkg_recache + +%postun devel +%ghc_pkg_recache + +%files -f %{name}.files +%license LICENSE + +%files devel -f %{name}-devel.files +%doc CHANGELOG + +%files -n ghc-%{pkg_name}-help -f ghc-%{pkg_name}-help.files +%license LICENSE + +%files -n ghc-%{pkg_name}-prof -f ghc-%{pkg_name}-prof.files + +%changelog +* Thu Sep 28 2023 Lin Runze <lrzlin@163.com> 0.2.7.3-1 +- Initial packaging (Version 0.2.7.3) |