package index

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type t
val equal : t -> t -> bool

The equality function for fan-out.

val v : hash_size:int -> entry_size:int -> int -> t

v ~hash_size ~entry_size n creates a fan_out for an index with hash_size and entry_size, containing n elements.

val nb_fans : t -> int

nb_fans t is the number of fans in t.

search t hash is the interval of offsets containing hash, if present.

val update : t -> int -> int64 -> unit

update t hash off updates t so that hash is registered to be at offset off.

val finalize : t -> unit

Finalizes the update of the fanout. This is mendatory before any search query.

val exported_size : t -> int

exported_size t is the size of export t. This does not actually compute the encoding of t.

val export : t -> string

export t is a string encoded form of t.

val import : hash_size:int -> string -> t

import ~hash_size buf decodes buf such that import ~hash_size (export t) = t if t was initially created with ~hash_size.