package irmin

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Irmin, a distributed database that follows the same design principles as Git

Install

Dune Dependency

github.com Readme Changelog ISC License Edit opam file Versions (44)

Authors

Maintainers

T

thomas@gazagnaire.org

Sources

irmin-2.5.4.tbz

sha256=36d8a997a570114cf89f97a59a24e5ef78e4af82e6bbb26d0be9cc4c2ba08c30

sha512=8c248674ad71cc2b45fe284ef8db4bf8b4f8efa09e9cdcdb4adcf1437b1c45ce08a2f47cf18c1c0444e2d40d2095fbbdfd87702dd33783879690ee75b7d8d90c

doc/irmin.mem/Irmin_mem/Append_only/index.html

Module `Irmin_mem.Append_only`

An in-memory store for append-only values.

Parameters

module K : Irmin.Type.S

module V : Irmin.Type.S

Signature

include Irmin.APPEND_ONLY_STORE with type key = K.t and type value = V.t

Append-only stores

Append-onlye stores are store where it is possible to read and add new values.

type -'a t

The type for append-only backend stores. The 'a phantom type carries information about the store mutability.

type key = K.t

The type for keys.

type value = V.t

The type for raw values.

val mem : [> Irmin.Perms.read ] t -> key -> bool Lwt.t

mem t k is true iff k is present in t.

val find : [> Irmin.Perms.read ] t -> key -> value option Lwt.t

find t k is Some v if k is associated to v in t and None is k is not present in t.

val add : [> Irmin.Perms.write ] t -> key -> value -> unit Lwt.t

Write the contents of a value to the store.

val clear : 'a t -> unit Lwt.t

Clear the store. This operation is expected to be slow.

val batch : 
  Irmin.Perms.read t ->
  ([ Irmin.Perms.read | Irmin.Perms.write ] t -> 'a Lwt.t) ->
  'a Lwt.t

batch t f applies the writes in f in a separate batch. The exact guarantees depend on the implementation.

val v : Irmin__.Conf.t -> Irmin.Perms.read t Lwt.t

v config is a function returning fresh store handles, with the configuration config, which is provided by the backend.

val close : 'a t -> unit Lwt.t

close t frees up all the resources associated with t. Any operations run on a closed handle will raise Closed.

On This Page

Parameters
Signature