package irmin

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

Install

Dune Dependency

Authors

Maintainers

Sources

irmin-3.4.3.tbz
sha256=6e430cf44aee5ffdc94f6bfad8dbc401e3ea036ed1fbcf2a8697198ecbf6d412
sha512=b969d0913f0776384fafc4f138cb5187a921e827fd9940d0b350601e1913bdecdfc5acc62ec0ff7c6906e230950a68b39bd886ba3fe37be52e1c6117ddce1791

doc/irmin/Irmin/Maker/argument-1-CA/index.html

Parameter Maker.CA

A content-addressable store is an indexed read-write store in which values are keyed directly by their hashes.

Parameters

module Hash : Hash.S
module Value : Type.S

Signature

Read-only stores

Read-only stores are store where it is only possible to read existing values.

type -'a t

The type for stores. The 'a phantom type carries information about the store mutability.

type key = Hash.t

The type for keys.

type value = Value.t

The type for raw values.

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

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

val find : [> 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 : [> Perms.write ] t -> value -> key Lwt.t

Write the contents of a value to the store. It's the responsibility of the content-addressable store to generate a consistent key.

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

Same as add but allows specifying the key directly. The backend might choose to discard that key and/or can be corrupt if the key scheme is not consistent.

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.

val batch : Perms.read t -> ([ Perms.read | 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 -> Perms.read t Lwt.t

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

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