package eio

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in-package search v0.2.0

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-0.15.tbz

sha256=807ecef337dda849b05d3dbd17a928e6f5c636e76eb15e2213667c91127718a7

sha512=8f055aec34c9347eed2cbaa4ee439399bbe3d6a546f2c2b52e27f733fe822f4acdee3e00e4e64ae3eb922c2772535952f8e81b546802fe945fd32d3fab88b7b9

doc/eio.utils/Eio_utils/Zzz/index.html

Module `Eio_utils.Zzz`Source

A set of timers.

Sourcemodule Key : sig ... end

A handle to a registered timer.

Sourcetype t

A set of timers (implemented as a priority queue).

Sourcetype item =

| Fiber of unit Suspended.t
| Fn of unit -> unit

Sourceval create : unit -> t

create () is a fresh empty queue.

Sourceval add : t -> Mtime.t -> item -> Key.t

add t time item adds a new event, due at time, and returns its ID.

If item is a Fiber, you must use Eio.Private.Fiber_context.set_cancel_fn on it before calling pop. Your cancel function should call remove (in addition to resuming it).

Sourceval remove : t -> Key.t -> unit

remove t key removes an event previously added with add.

Source

val pop : 
  t ->
  now:Mtime.t ->
  [ `Due of item | `Wait_until of Mtime.t | `Nothing ]

pop ~now t removes and returns the earliest item due by now. For fibers, it also clears the thread's cancel function. If no item is due yet, it returns the time the earliest item becomes due.