package eio

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Effect-based direct-style IO API for OCaml

Install

Dune Dependency

github.com Readme Changelog ISC License Edit opam file Versions (18)

Authors

Maintainers

A

anil@recoil.org

Sources

eio-1.2.tbz

sha256=3792e912bd8d494bb2e38f73081825e4d212b1970cf2c1f1b2966caa9fd6bc40

sha512=4a80dbcf8cf2663bdad0f2970871844f37bd293c56bd1ce602910e0a613754945f1f942719f9630906453be7c73c1732dc97526c6c90b0b36100d04fd5e871e4

doc/eio.mock/Eio_mock/Backend/index.html

Module `Eio_mock.Backend`Source

A dummy Eio backend with no actual IO.

This backend does not support the use of multiple domains or systhreads, but the tradeoff is that it can reliably detect deadlock, because if the run queue is empty then it knows that no wake up event can be coming from elsewhere.

Sourceexception Deadlock_detected

Sourceval run : (unit -> 'a) -> 'a

run fn runs an event loop and then calls fn env within it.

raises Deadlock_detected
if the run queue becomes empty but fn hasn't returned.

Source

type stdenv =
  < clock : Clock.t
  ; mono_clock : Clock.Mono.t
  ; debug : Eio.Debug.t
  ; backend_id : string >

Sourceval run_full : (stdenv -> 'a) -> 'a

run_full is like run but also provides a mock environment.

The mock monotonic clock it provides advances automatically when there is nothing left to do. The mock wall clock is linked directly to the monotonic time.