package tezos-context

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in-package search v0.2.0

Tezos: on-disk context abstraction for `octez-node`

Install

Dune Dependency

www.tezos.com Readme Edit opam file Versions (5)

Authors

T

Tezos devteam

Maintainers

C

contact@tezos.com

Sources

tezos-17.3.tar.gz

sha256=7062cd57addd452852598a2214ade393130efa087b99068d53713bdf912b3680

sha512=08e4091144a03ce3c107fb91a66501bd8b65ca3278917c455a2eaac6df3e108ade63f6ab8340a4bb152d60f404326e464d0ec95d26cafe8e82f870465d24a5fc

doc/tezos-context.memory/Tezos_context_memory/Make/argument-1-Encoding/Hash/index.html

Module `Encoding.Hash`

include Irmin.Hash.S

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 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.

val to_raw_string : t -> string

val to_context_hash : t -> Tezos_base.TzPervasives.Context_hash.t

val of_context_hash : Tezos_base.TzPervasives.Context_hash.t -> t