https://github.com/drup/ocaml-lmdb

Ocaml bindings for lmdb.
https://github.com/drup/ocaml-lmdb

ctypes database lmdb ocaml

Last synced: 2 months ago
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Ocaml bindings for lmdb.

• Host: GitHub
• URL: https://github.com/drup/ocaml-lmdb
• Owner: Drup
• License: mit
• Created: 2014-06-27T20:54:56.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2023-07-24T18:37:01.000Z (over 1 year ago)
• Last Synced: 2024-10-13T21:34:33.533Z (3 months ago)
• Topics: ctypes, database, lmdb, ocaml
• Language: OCaml
• Homepage: https://drup.github.io/ocaml-lmdb/dev/
• Size: 381 KB
• Stars: 48
• Watchers: 6
• Forks: 3
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

        
# OCaml-lmdb [![Build Status](https://travis-ci.org/Drup/ocaml-lmdb.svg?branch=master)](https://travis-ci.org/Drup/ocaml-lmdb) [![docs](https://img.shields.io/badge/doc-online-blue.svg)][doc]

The [LMDB][] database is a fast in-file database that supports ACID transactions.

These bindings expose a typesafe yet low-overhead API. Both transactions and cursors are available. 

Database implementations are specialized both by keys and values.

Two module are predefined: `Lmdb.Db` (string keys and string values) and `Lmdb.IntDb` (int keys and string values). 

New implementation (which can use special LMDB features such as multi-values) can be added via a functorial interface.

Please consult the [documentation][doc] and a [simple example](tests/simple_db.ml).

```ocaml

let open Lmdb in

let env = Env.(create Rw ~flags:Flags.no_subdir ~max_maps:1) "mydb" in

let map = Map.create Nodup ~key:Conv.string ~value:Conv.string

	    ~name:"Camelidae" env in

Map.add map "Bactrian camel" "Elegant and beautiful animal with two humps."

```

[lmdb]: http://symas.com/mdb/#overview

[doc]: https://drup.github.io/ocaml-lmdb/dev/lmdb/Lmdb/index.html