package octez-libs

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A package that contains multiple base libraries used by the Octez suite

Install

Dune Dependency

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

Authors

T

Tezos devteam

Maintainers

C

contact@tezos.com

Sources

tezos-octez-v20.1.tag.bz2

sha256=ddfb5076eeb0b32ac21c1eed44e8fc86a6743ef18ab23fff02d36e365bb73d61

sha512=d22a827df5146e0aa274df48bc2150b098177ff7e5eab52c6109e867eb0a1f0ec63e6bfbb0e3645a6c2112de3877c91a17df32ccbff301891ce4ba630c997a65

doc/octez-libs.stdlib-unix/Tezos_stdlib_unix/Moving_average/index.html

Module `Tezos_stdlib_unix.Moving_average`Source

Moving averages.

This module implements bandwidth counters based on (cumulative) exponential moving average. Each counter is identified by an integer. They are stored in an internal hash table.

See i.e. https://en.wikipedia.org/wiki/Moving_average#Exponential_moving_average for the algorithm.

Sourcetype t

Type of one bandwidth counter.

Sourcetype state

Internal state of the worker handling a family of counters.

Sourceval fresh_state : id:string -> refresh_interval:float -> state

fresh_state ~id ~refresh_interval initializes the state of a worker handling a family of counter. The worker wakes up every refresh_interval seconds. id is a string identifier used for distinguishing distinct Moving_average workers..

Sourceval create : state -> init:int -> alpha:float -> t

create state ~init ~alpha is a counter with initial value init and factor alpha. The counter is added to the state. It is not removed automatically: it must be removed manually.

Sourceval destroy : state -> t -> unit

destroy state -> t removes counter t from the internal state.

Sourceval add : t -> int -> unit

add state t v adds v to the counter t.

Sourceval on_update : state -> (unit -> unit) -> unit

on_update state f registers f to be called on each update of the internal worker associated to state.

Sourceval updated : state -> unit Lwt_condition.t

updated state is a condition variable that gets signaled on each update of the internal worker..

Sourcetype stat = {

total : int64;
average : int;

}

Sourceval stat : t -> stat

stat t is a stat record reflecting the state of t at the time of the call.