summaryrefslogtreecommitdiff
path: root/ghc-psqueues.spec
diff options
context:
space:
mode:
Diffstat (limited to 'ghc-psqueues.spec')
-rw-r--r--ghc-psqueues.spec134
1 files changed, 134 insertions, 0 deletions
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)