package irmin

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in-package search v0.2.0

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-3.4.2.tbz

sha256=964512f77697947a73dd1875c634d6804e98f14167c5aadd3c4f85b5f30ffb53

sha512=d56d3285daa2dd36f1eaff867af5c8f44c61bba4de1a5c7bb5347652dbc460c343483ab61de1a9302f664af357eacc964dc5c8b4477f6d01372dc028b162e98b

doc/irmin.mem/Irmin_mem/Make/argument-1-Schema/Hash/index.html

Module `Schema.Hash`

Signature for digest hashes, inspired by Digestif.

type t

The type for digest hashes.

val hash : ((string -> unit) -> unit) -> t

Compute a deterministic store key from a sequence of strings.

val short_hash : t -> int

short_hash h is a small hash of h, to be used for instance as the `hash` function of an OCaml Hashtbl.

val hash_size : int

hash_size is the size of hash results, in bytes.

val to_raw_string : t -> string

to_raw_string t is the raw sequence of bytes in t (of length hash_size).

val unsafe_of_raw_string : string -> t

unsafe_of_raw_string b is the hash consisting of the raw sequence of bytes b.

Warning: this function cannot guarantee that the supplied byte string is a valid output of the hash process, so should only be used on strings that are known to have been built with to_raw_string.

val short_hash_substring : Bigstringaf.t -> off:int -> int

short_hash_substring t off computes the short-hash of the raw hash data contained in t at offset off. It has behaviour equivalent to:

  Bigstringaf.substring t ~off ~len:hash_size
  |> unsafe_of_raw_string
  |> short_hash

but may be more efficient due to not needing to allocate an intermediate string.

Value Types

val t : t Irmin.Type.t

t is the value type for t.

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Value Types