package picos

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Pico scheduler framework

Install

Dune Dependency

Authors

Maintainers

Sources

picos-0.3.0.tbz
sha256=544804c0bde4b29764f82f04e7defed7c06bc43e5a6ce3f7fdc326cb54a7f066
sha512=4c93427e477fb52374a554a8b9c4c92836a9b5899161275d1473269ab526a1f59177209140631ed763a55be375855dea12f076e18bf4124522414986c0e257be

doc/picos.fifos/Picos_fifos/index.html

Module Picos_fifosSource

Basic single-threaded effects based Picos compatible scheduler for OCaml 5.

ℹ️ This scheduler implementation is mostly meant as an example and for use in testing libraries implemented in Picos.

Briefly:

  • current returns the current fiber.
  • spawn forks a new deep effect handler for each fiber.
  • yield pushes the current fiber to the back of the internal queue and takes the next fiber to run from the head of the internal queue.
  • cancel_after uses a per-domain background thread that runs a Unix.select loop to cancel computations.
  • await stores the current fiber to be resumed through the trigger and takes next fiber to run from the head of the internal queue.

This scheduler also gives priority to fibers woken up from await due to being canceled.

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

run ~forbid main runs the main thunk with the scheduler. Returns after main and all of the fibers spawned by main have returned.

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