Module Picos_fifos

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.