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43 lines
1.6 KiB
Nix
43 lines
1.6 KiB
Nix
{
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lib,
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buildDunePackage,
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fetchurl,
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}:
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buildDunePackage rec {
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pname = "ancient";
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version = "0.10.0";
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minimalOCamlVersion = "4.12";
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src = fetchurl {
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url = "https://github.com/OCamlPro/ocaml-ancient/releases/download/${version}/ancient-${version}.tbz";
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hash = "sha256-XeVUPrdg7QSV7V0Tz8Mkj5jvzKtYD9DON+tt9kkuCHM=";
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};
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doCheck = true;
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meta = {
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description = "Use data structures larger than available memory";
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longDescription = ''
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This module allows you to use in-memory data structures which are
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larger than available memory and so are kept in swap. If you try this
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in normal OCaml code, you'll find that the machine quickly descends
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into thrashing as the garbage collector repeatedly iterates over
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swapped memory structures. This module lets you break that
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limitation. Of course the module doesn't work by magic :-) If your
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program tries to access these large structures, they still need to be
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swapped back in, but it is suitable for large, sparsely accessed
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structures.
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Secondly, this module allows you to share those structures between
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processes. In this mode, the structures are backed by a disk file,
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and any process that has read/write access that disk file can map that
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file in and see the structures.
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'';
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homepage = "https://github.com/OCamlPro/ocaml-ancient";
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changelog = "https://raw.githubusercontent.com/OCamlPro/ocaml-ancient/refs/tags/${version}/CHANGES.md";
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license = lib.licenses.lgpl21Plus;
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maintainers = with lib.maintainers; [ momeemt ];
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};
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}
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